<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * set of functions for the sql executor
 *
 * @package PhpMyAdmin
 */
use PMA\libraries\DisplayResults;
use PMA\libraries\Message;
use PMA\libraries\Table;
use PMA\libraries\Response;
use PMA\libraries\URL;
use PMA\libraries\Bookmark;

/**
 * Parses and analyzes the given SQL query.
 *
 * @param string $sql_query SQL query
 * @param string $db        DB name
 *
 * @return mixed
 */
function PMA_parseAndAnalyze($sql_query, $db = null)
{
    if (($db === null) && (!empty($GLOBALS['db']))) {
        $db = $GLOBALS['db'];
    }

    include_once 'libraries/parse_analyze.lib.php';
    list($analyzed_sql_results,,) = PMA_parseAnalyze($sql_query, $db);

    return $analyzed_sql_results;
}

/**
 * Handle remembered sorting order, only for single table query
 *
 * @param string $db                    database name
 * @param string $table                 table name
 * @param array  &$analyzed_sql_results the analyzed query results
 * @param string &$full_sql_query       SQL query
 *
 * @return void
 */
function PMA_handleSortOrder(
    $db, $table, &$analyzed_sql_results, &$full_sql_query
) {
    $pmatable = new Table($table, $db);

    if (empty($analyzed_sql_results['order'])) {

        // Retrieving the name of the column we should sort after.
        $sortCol = $pmatable->getUiProp(Table::PROP_SORTED_COLUMN);
        if (empty($sortCol)) {
            return;
        }

        // Remove the name of the table from the retrieved field name.
        $sortCol = str_replace(
            PMA\libraries\Util::backquote($table) . '.',
            '',
            $sortCol
        );

        // Create the new query.
        $full_sql_query = PhpMyAdmin\SqlParser\Utils\Query::replaceClause(
            $analyzed_sql_results['statement'],
            $analyzed_sql_results['parser']->list,
            'ORDER BY ' . $sortCol
        );

        // TODO: Avoid reparsing the query.
        $analyzed_sql_results = PhpMyAdmin\SqlParser\Utils\Query::getAll($full_sql_query);
    } else {
        // Store the remembered table into session.
        $pmatable->setUiProp(
            Table::PROP_SORTED_COLUMN,
            PhpMyAdmin\SqlParser\Utils\Query::getClause(
                $analyzed_sql_results['statement'],
                $analyzed_sql_results['parser']->list,
                'ORDER BY'
            )
        );
    }
}

/**
 * Append limit clause to SQL query
 *
 * @param array &$analyzed_sql_results the analyzed query results
 *
 * @return string limit clause appended SQL query
 */
function PMA_getSqlWithLimitClause(&$analyzed_sql_results)
{
    return PhpMyAdmin\SqlParser\Utils\Query::replaceClause(
        $analyzed_sql_results['statement'],
        $analyzed_sql_results['parser']->list,
        'LIMIT ' . $_SESSION['tmpval']['pos'] . ', '
        . $_SESSION['tmpval']['max_rows']
    );
}

/**
 * Verify whether the result set has columns from just one table
 *
 * @param array $fields_meta meta fields
 *
 * @return boolean whether the result set has columns from just one table
 */
function PMA_resultSetHasJustOneTable($fields_meta)
{
    $just_one_table = true;
    $prev_table = '';
    foreach ($fields_meta as $one_field_meta) {
        if ($one_field_meta->table != ''
            && $prev_table != ''
            && $one_field_meta->table != $prev_table
        ) {
            $just_one_table = false;
        }
        if ($one_field_meta->table != '') {
            $prev_table = $one_field_meta->table;
        }
    }
    return $just_one_table && $prev_table != '';
}

/**
 * Verify whether the result set contains all the columns
 * of at least one unique key
 *
 * @param string $db          database name
 * @param string $table       table name
 * @param array  $fields_meta meta fields
 *
 * @return boolean whether the result set contains a unique key
 */
function PMA_resultSetContainsUniqueKey($db, $table, $fields_meta)
{
    $resultSetColumnNames = array();
    foreach ($fields_meta as $oneMeta) {
        $resultSetColumnNames[] = $oneMeta->name;
    }
    foreach (PMA\libraries\Index::getFromTable($table, $db) as $index) {
        if ($index->isUnique()) {
            $indexColumns = $index->getColumns();
            $numberFound = 0;
            foreach ($indexColumns as $indexColumnName => $dummy) {
                if (in_array($indexColumnName, $resultSetColumnNames)) {
                    $numberFound++;
                }
            }
            if ($numberFound == count($indexColumns)) {
                return true;
            }
        }
    }
    return false;
}

/**
 * Get the HTML for relational column dropdown
 * During grid edit, if we have a relational field, returns the html for the
 * dropdown
 *
 * @param string $db         current database
 * @param string $table      current table
 * @param string $column     current column
 * @param string $curr_value current selected value
 *
 * @return string $dropdown html for the dropdown
 */
function PMA_getHtmlForRelationalColumnDropdown($db, $table, $column, $curr_value)
{
    $foreigners = PMA_getForeigners($db, $table, $column);

    $foreignData = PMA_getForeignData($foreigners, $column, false, '', '');

    if ($foreignData['disp_row'] == null) {
        //Handle the case when number of values
        //is more than $cfg['ForeignKeyMaxLimit']
        $_url_params = array(
                'db' => $db,
                'table' => $table,
                'field' => $column
        );

        $dropdown = '<span class="curr_value">'
            . htmlspecialchars($_REQUEST['curr_value'])
            . '</span>'
            . '<a href="browse_foreigners.php'
            . URL::getCommon($_url_params) . '"'
            . 'class="ajax browse_foreign" ' . '>'
            . __('Browse foreign values')
            . '</a>';
    } else {
        $dropdown = PMA_foreignDropdown(
            $foreignData['disp_row'],
            $foreignData['foreign_field'],
            $foreignData['foreign_display'],
            $curr_value,
            $GLOBALS['cfg']['ForeignKeyMaxLimit']
        );
        $dropdown = '<select>' . $dropdown . '</select>';
    }

    return $dropdown;
}

/**
 * Get the HTML for the profiling table and accompanying chart if profiling is set.
 * Otherwise returns null
 *
 * @param string $url_query         url query
 * @param string $db                current database
 * @param array  $profiling_results array containing the profiling info
 *
 * @return string $profiling_table html for the profiling table and chart
 */
function PMA_getHtmlForProfilingChart($url_query, $db, $profiling_results)
{
    if (! empty($profiling_results)) {
        $pma_token = $_SESSION[' PMA_token '];
        $url_query = isset($url_query)
            ? $url_query
            : URL::getCommon(array('db' => $db));

        $profiling_table = '';
        $profiling_table .= '<fieldset><legend>' . __('Profiling')
            . '</legend>' . "\n";
        $profiling_table .= '<div class="floatleft">';
        $profiling_table .= '<h3>' . __('Detailed profile') . '</h3>';
        $profiling_table .= '<table id="profiletable"><thead>' . "\n";
        $profiling_table .= ' <tr>' . "\n";
        $profiling_table .= '  <th>' . __('Order')
            . '<div class="sorticon"></div></th>' . "\n";
        $profiling_table .= '  <th>' . __('State')
            . PMA\libraries\Util::showMySQLDocu('general-thread-states')
            . '<div class="sorticon"></div></th>' . "\n";
        $profiling_table .= '  <th>' . __('Time')
            . '<div class="sorticon"></div></th>' . "\n";
        $profiling_table .= ' </tr></thead><tbody>' . "\n";
        list($detailed_table, $chart_json, $profiling_stats)
            = PMA_analyzeAndGetTableHtmlForProfilingResults($profiling_results);
        $profiling_table .= $detailed_table;
        $profiling_table .= '</tbody></table>' . "\n";
        $profiling_table .= '</div>';

        $profiling_table .= '<div class="floatleft">';
        $profiling_table .= '<h3>' . __('Summary by state') . '</h3>';
        $profiling_table .= '<table id="profilesummarytable"><thead>' . "\n";
        $profiling_table .= ' <tr>' . "\n";
        $profiling_table .= '  <th>' . __('State')
            . PMA\libraries\Util::showMySQLDocu('general-thread-states')
            . '<div class="sorticon"></div></th>' . "\n";
        $profiling_table .= '  <th>' . __('Total Time')
            . '<div class="sorticon"></div></th>' . "\n";
        $profiling_table .= '  <th>' . __('% Time')
            . '<div class="sorticon"></div></th>' . "\n";
        $profiling_table .= '  <th>' . __('Calls')
            . '<div class="sorticon"></div></th>' . "\n";
        $profiling_table .= '  <th>' . __('ø Time')
            . '<div class="sorticon"></div></th>' . "\n";
        $profiling_table .= ' </tr></thead><tbody>' . "\n";
        $profiling_table .= PMA_getTableHtmlForProfilingSummaryByState(
            $profiling_stats
        );
        $profiling_table .= '</tbody></table>' . "\n";

        $profiling_table .= <<<EOT
<script type="text/javascript">
    pma_token = '$pma_token';
    url_query = '$url_query';
</script>
EOT;
        $profiling_table .= "</div>";
        $profiling_table .= "<div class='clearfloat'></div>";

        //require_once 'libraries/chart.lib.php';
        $profiling_table .= '<div id="profilingChartData" style="display:none;">';
        $profiling_table .= json_encode($chart_json);
        $profiling_table .= '</div>';
        $profiling_table .= '<div id="profilingchart" style="display:none;">';
        $profiling_table .= '</div>';
        $profiling_table .= '<script type="text/javascript">';
        $profiling_table .= "AJAX.registerOnload('sql.js', function () {";
        $profiling_table .= 'makeProfilingChart();';
        $profiling_table .= 'initProfilingTables();';
        $profiling_table .= '});';
        $profiling_table .= '</script>';
        $profiling_table .= '</fieldset>' . "\n";
    } else {
        $profiling_table = null;
    }
    return $profiling_table;
}

/**
 * Function to get HTML for detailed profiling results table, profiling stats, and
 * $chart_json for displaying the chart.
 *
 * @param array $profiling_results profiling results
 *
 * @return mixed
 */
function PMA_analyzeAndGetTableHtmlForProfilingResults(
    $profiling_results
) {
    $profiling_stats = array(
        'total_time' => 0,
        'states' => array(),
    );
    $chart_json = Array();
    $i = 1;
    $table = '';
    foreach ($profiling_results as $one_result) {
        if (isset($profiling_stats['states'][ucwords($one_result['Status'])])) {
            $states = $profiling_stats['states'];
            $states[ucwords($one_result['Status'])]['total_time']
                += $one_result['Duration'];
            $states[ucwords($one_result['Status'])]['calls']++;
        } else {
            $profiling_stats['states'][ucwords($one_result['Status'])] = array(
                'total_time' => $one_result['Duration'],
                'calls' => 1,
            );
        }
        $profiling_stats['total_time'] += $one_result['Duration'];

        $table .= ' <tr>' . "\n";
        $table .= '<td>' . $i++ . '</td>' . "\n";
        $table .= '<td>' . ucwords($one_result['Status'])
            . '</td>' . "\n";
        $table .= '<td class="right">'
            . (PMA\libraries\Util::formatNumber($one_result['Duration'], 3, 1))
            . 's<span style="display:none;" class="rawvalue">'
            . $one_result['Duration'] . '</span></td>' . "\n";
        if (isset($chart_json[ucwords($one_result['Status'])])) {
            $chart_json[ucwords($one_result['Status'])]
                += $one_result['Duration'];
        } else {
            $chart_json[ucwords($one_result['Status'])]
                = $one_result['Duration'];
        }
    }
    return array($table, $chart_json, $profiling_stats);
}

/**
 * Function to get HTML for summary by state table
 *
 * @param array $profiling_stats profiling stats
 *
 * @return string $table html for the table
 */
function PMA_getTableHtmlForProfilingSummaryByState($profiling_stats)
{
    $table = '';
    foreach ($profiling_stats['states'] as $name => $stats) {
        $table .= ' <tr>' . "\n";
        $table .= '<td>' . $name . '</td>' . "\n";
        $table .= '<td align="right">'
            . PMA\libraries\Util::formatNumber($stats['total_time'], 3, 1)
            . 's<span style="display:none;" class="rawvalue">'
            . $stats['total_time'] . '</span></td>' . "\n";
        $table .= '<td align="right">'
            . PMA\libraries\Util::formatNumber(
                100 * ($stats['total_time'] / $profiling_stats['total_time']),
                0, 2
            )
        . '%</td>' . "\n";
        $table .= '<td align="right">' . $stats['calls'] . '</td>'
            . "\n";
        $table .= '<td align="right">'
            . PMA\libraries\Util::formatNumber(
                $stats['total_time'] / $stats['calls'], 3, 1
            )
            . 's<span style="display:none;" class="rawvalue">'
            . number_format($stats['total_time'] / $stats['calls'], 8, '.', '')
            . '</span></td>' . "\n";
        $table .= ' </tr>' . "\n";
    }
    return $table;
}

/**
 * Get the HTML for the enum column dropdown
 * During grid edit, if we have a enum field, returns the html for the
 * dropdown
 *
 * @param string $db         current database
 * @param string $table      current table
 * @param string $column     current column
 * @param string $curr_value currently selected value
 *
 * @return string $dropdown html for the dropdown
 */
function PMA_getHtmlForEnumColumnDropdown($db, $table, $column, $curr_value)
{
    $values = PMA_getValuesForColumn($db, $table, $column);
    $dropdown = '<option value="">&nbsp;</option>';
    $dropdown .= PMA_getHtmlForOptionsList($values, array($curr_value));
    $dropdown = '<select>' . $dropdown . '</select>';
    return $dropdown;
}

/**
 * Get value of a column for a specific row (marked by $where_clause)
 *
 * @param string $db           current database
 * @param string $table        current table
 * @param string $column       current column
 * @param string $where_clause where clause to select a particular row
 *
 * @return string with value
 */
function PMA_getFullValuesForSetColumn($db, $table, $column, $where_clause)
{
    $result = $GLOBALS['dbi']->fetchSingleRow(
        "SELECT `$column` FROM `$db`.`$table` WHERE $where_clause"
    );

    return $result[$column];
}

/**
 * Get the HTML for the set column dropdown
 * During grid edit, if we have a set field, returns the html for the
 * dropdown
 *
 * @param string $db         current database
 * @param string $table      current table
 * @param string $column     current column
 * @param string $curr_value currently selected value
 *
 * @return string $dropdown html for the set column
 */
function PMA_getHtmlForSetColumn($db, $table, $column, $curr_value)
{
    $values = PMA_getValuesForColumn($db, $table, $column);
    $dropdown = '';
    $full_values =
        isset($_REQUEST['get_full_values']) ? $_REQUEST['get_full_values'] : false;
    $where_clause =
        isset($_REQUEST['where_clause']) ? $_REQUEST['where_clause'] : null;

    // If the $curr_value was truncated, we should
    // fetch the correct full values from the table
    if ($full_values && ! empty($where_clause)) {
        $curr_value = PMA_getFullValuesForSetColumn(
            $db, $table, $column, $where_clause
        );
    }

    //converts characters of $curr_value to HTML entities
    $converted_curr_value = htmlentities(
        $curr_value, ENT_COMPAT, "UTF-8"
    );

    $selected_values = explode(',', $converted_curr_value);

    $dropdown .= PMA_getHtmlForOptionsList($values, $selected_values);

    $select_size = (sizeof($values) > 10) ? 10 : sizeof($values);
    $dropdown = '<select multiple="multiple" size="' . $select_size . '">'
        . $dropdown . '</select>';

    return $dropdown;
}

/**
 * Get all the values for a enum column or set column in a table
 *
 * @param string $db     current database
 * @param string $table  current table
 * @param string $column current column
 *
 * @return array $values array containing the value list for the column
 */
function PMA_getValuesForColumn($db, $table, $column)
{
    $field_info_query = $GLOBALS['dbi']->getColumnsSql($db, $table, $column);

    $field_info_result = $GLOBALS['dbi']->fetchResult(
        $field_info_query,
        null,
        null,
        null,
        PMA\libraries\DatabaseInterface::QUERY_STORE
    );

    $values = PMA\libraries\Util::parseEnumSetValues($field_info_result[0]['Type']);

    return $values;
}

/**
 * Get HTML for options list
 *
 * @param array $values          set of values
 * @param array $selected_values currently selected values
 *
 * @return string $options HTML for options list
 */
function PMA_getHtmlForOptionsList($values, $selected_values)
{
    $options = '';
    foreach ($values as $value) {
        $options .= '<option value="' . $value . '"';
        if (in_array($value, $selected_values, true)) {
            $options .= ' selected="selected" ';
        }
        $options .= '>' . $value . '</option>';
    }
    return $options;
}

/**
 * Function to get html for bookmark support if bookmarks are enabled. Else will
 * return null
 *
 * @param array  $displayParts   the parts to display
 * @param array  $cfgBookmark    configuration setting for bookmarking
 * @param string $sql_query      sql query
 * @param string $db             current database
 * @param string $table          current table
 * @param string $complete_query complete query
 * @param string $bkm_user       bookmarking user
 *
 * @return string $html
 */
function PMA_getHtmlForBookmark($displayParts, $cfgBookmark, $sql_query, $db,
    $table, $complete_query, $bkm_user
) {
    if ($displayParts['bkm_form'] == '1'
        && (! empty($cfgBookmark) && empty($_GET['id_bookmark']))
        && ! empty($sql_query)
    ) {
        $goto = 'sql.php'
            . URL::getCommon(
                array(
                    'db' => $db,
                    'table' => $table,
                    'sql_query' => $sql_query,
                    'id_bookmark'=> 1,
                )
            );
        $bkm_sql_query = isset($complete_query) ? $complete_query : $sql_query;
        $html = '<form action="sql.php" method="post"'
            . ' onsubmit="return ! emptyCheckTheField(this,'
            . '\'bkm_fields[bkm_label]\');"'
            . ' class="bookmarkQueryForm print_ignore">';
        $html .= URL::getHiddenInputs();
        $html .= '<input type="hidden" name="db"'
            . ' value="' . htmlspecialchars($db) . '" />';
        $html .= '<input type="hidden" name="goto" value="' . $goto . '" />';
        $html .= '<input type="hidden" name="bkm_fields[bkm_database]"'
            . ' value="' . htmlspecialchars($db) . '" />';
        $html .= '<input type="hidden" name="bkm_fields[bkm_user]"'
            . ' value="' . $bkm_user . '" />';
        $html .= '<input type="hidden" name="bkm_fields[bkm_sql_query]"'
            . ' value="'
            . htmlspecialchars($bkm_sql_query)
            . '" />';
        $html .= '<fieldset>';
        $html .= '<legend>';
        $html .= PMA\libraries\Util::getIcon(
            'b_bookmark.png', __('Bookmark this SQL query'), true
        );
        $html .= '</legend>';
        $html .= '<div class="formelement">';
        $html .= '<label>' . __('Label:');
        $html .= '<input type="text" name="bkm_fields[bkm_label]" value="" />' .
            '</label>';
        $html .= '</div>';
        $html .= '<div class="formelement">';
        $html .= '<label>' .
            '<input type="checkbox" name="bkm_all_users" value="true" />';
        $html .=  __('Let every user access this bookmark') . '</label>';
        $html .= '</div>';
        $html .= '<div class="clearfloat"></div>';
        $html .= '</fieldset>';
        $html .= '<fieldset class="tblFooters">';
        $html .= '<input type="hidden" name="store_bkm" value="1" />';
        $html .= '<input type="submit"'
            . ' value="' . __('Bookmark this SQL query') . '" />';
        $html .= '</fieldset>';
        $html .= '</form>';

    } else {
        $html = null;
    }

    return $html;
}

/**
 * Function to check whether to remember the sorting order or not
 *
 * @param array $analyzed_sql_results the analyzed query and other variables set
 *                                    after analyzing the query
 *
 * @return boolean
 */
function PMA_isRememberSortingOrder($analyzed_sql_results)
{
    return $GLOBALS['cfg']['RememberSorting']
        && ! ($analyzed_sql_results['is_count']
            || $analyzed_sql_results['is_export']
            || $analyzed_sql_results['is_func']
            || $analyzed_sql_results['is_analyse'])
        && $analyzed_sql_results['select_from']
        && ((empty($analyzed_sql_results['select_expr']))
            || ((count($analyzed_sql_results['select_expr']) == 1)
                && ($analyzed_sql_results['select_expr'][0] == '*')))
        && count($analyzed_sql_results['select_tables']) == 1;
}

/**
 * Function to check whether the LIMIT clause should be appended or not
 *
 * @param array $analyzed_sql_results the analyzed query and other variables set
 *                                    after analyzing the query
 *
 * @return boolean
 */
function PMA_isAppendLimitClause($analyzed_sql_results)
{
    // Assigning LIMIT clause to an syntactically-wrong query
    // is not needed. Also we would want to show the true query
    // and the true error message to the query executor

    return (isset($analyzed_sql_results['parser'])
        && count($analyzed_sql_results['parser']->errors) === 0)
        && ($_SESSION['tmpval']['max_rows'] != 'all')
        && ! ($analyzed_sql_results['is_export']
        || $analyzed_sql_results['is_analyse'])
        && ($analyzed_sql_results['select_from']
            || $analyzed_sql_results['is_subquery'])
        && empty($analyzed_sql_results['limit']);
}

/**
 * Function to check whether this query is for just browsing
 *
 * @param array   $analyzed_sql_results the analyzed query and other variables set
 *                                      after analyzing the query
 * @param boolean $find_real_end        whether the real end should be found
 *
 * @return boolean
 */
function PMA_isJustBrowsing($analyzed_sql_results, $find_real_end)
{
    return ! $analyzed_sql_results['is_group']
        && ! $analyzed_sql_results['is_func']
        && empty($analyzed_sql_results['union'])
        && empty($analyzed_sql_results['distinct'])
        && $analyzed_sql_results['select_from']
        && (count($analyzed_sql_results['select_tables']) === 1)
        && (empty($analyzed_sql_results['statement']->where)
            || (count($analyzed_sql_results['statement']->where) == 1
                && $analyzed_sql_results['statement']->where[0]->expr ==='1'))
        && empty($analyzed_sql_results['group'])
        && ! isset($find_real_end)
        && ! $analyzed_sql_results['is_subquery']
        && ! $analyzed_sql_results['join']
        && empty($analyzed_sql_results['having']);
}

/**
 * Function to check whether the related transformation information should be deleted
 *
 * @param array $analyzed_sql_results the analyzed query and other variables set
 *                                    after analyzing the query
 *
 * @return boolean
 */
function PMA_isDeleteTransformationInfo($analyzed_sql_results)
{
    return !empty($analyzed_sql_results['querytype'])
        && (($analyzed_sql_results['querytype'] == 'ALTER')
            || ($analyzed_sql_results['querytype'] == 'DROP'));
}

/**
 * Function to check whether the user has rights to drop the database
 *
 * @param array   $analyzed_sql_results  the analyzed query and other variables set
 *                                       after analyzing the query
 * @param boolean $allowUserDropDatabase whether the user is allowed to drop db
 * @param boolean $is_superuser          whether this user is a superuser
 *
 * @return boolean
 */
function PMA_hasNoRightsToDropDatabase($analyzed_sql_results,
    $allowUserDropDatabase, $is_superuser
) {
    return ! $allowUserDropDatabase
        && isset($analyzed_sql_results['drop_database'])
        && $analyzed_sql_results['drop_database']
        && ! $is_superuser;
}

/**
 * Function to set a column property
 *
 * @param Table  $pmatable      Table instance
 * @param string $request_index col_order|col_visib
 *
 * @return boolean $retval
 */
function PMA_setColumnProperty($pmatable, $request_index)
{
    $property_value = array_map('intval', explode(',', $_REQUEST[$request_index]));
    switch($request_index) {
    case 'col_order':
        $property_to_set = Table::PROP_COLUMN_ORDER;
        break;
    case 'col_visib':
        $property_to_set = Table::PROP_COLUMN_VISIB;
        break;
    default:
        $property_to_set = '';
    }
    $retval = $pmatable->setUiProp(
        $property_to_set,
        $property_value,
        $_REQUEST['table_create_time']
    );
    if (gettype($retval) != 'boolean') {
        $response = Response::getInstance();
        $response->setRequestStatus(false);
        $response->addJSON('message', $retval->getString());
        exit;
    }

    return $retval;
}

/**
 * Function to check the request for setting the column order or visibility
 *
 * @param String $table the current table
 * @param String $db    the current database
 *
 * @return void
 */
function PMA_setColumnOrderOrVisibility($table, $db)
{
    $pmatable = new Table($table, $db);
    $retval = false;

    // set column order
    if (isset($_REQUEST['col_order'])) {
        $retval = PMA_setColumnProperty($pmatable, 'col_order');
    }

    // set column visibility
    if ($retval === true && isset($_REQUEST['col_visib'])) {
        $retval = PMA_setColumnProperty($pmatable, 'col_visib');
    }

    $response = Response::getInstance();
    $response->setRequestStatus($retval == true);
    exit;
}

/**
 * Function to add a bookmark
 *
 * @param String $goto goto page URL
 *
 * @return void
 */
function PMA_addBookmark($goto)
{
    $bookmark = Bookmark::createBookmark(
        $_POST['bkm_fields'],
        (isset($_POST['bkm_all_users'])
            && $_POST['bkm_all_users'] == 'true' ? true : false
        )
    );
    $result = $bookmark->save();
    $response = Response::getInstance();
    if ($response->isAjax()) {
        if ($result) {
            $msg = Message::success(__('Bookmark %s has been created.'));
            $msg->addParam($_POST['bkm_fields']['bkm_label']);
            $response->addJSON('message', $msg);
        } else {
            $msg = PMA\libraries\message::error(__('Bookmark not created!'));
            $response->setRequestStatus(false);
            $response->addJSON('message', $msg);
        }
        exit;
    } else {
        // go back to sql.php to redisplay query; do not use &amp; in this case:
        /**
         * @todo In which scenario does this happen?
         */
        PMA_sendHeaderLocation(
            './' . $goto
            . '&label=' . $_POST['bkm_fields']['bkm_label']
        );
    }
}

/**
 * Function to find the real end of rows
 *
 * @param String $db    the current database
 * @param String $table the current table
 *
 * @return mixed the number of rows if "retain" param is true, otherwise true
 */
function PMA_findRealEndOfRows($db, $table)
{
    $unlim_num_rows = $GLOBALS['dbi']->getTable($db, $table)->countRecords(true);
    $_SESSION['tmpval']['pos'] = PMA_getStartPosToDisplayRow($unlim_num_rows);

    return $unlim_num_rows;
}

/**
 * Function to get values for the relational columns
 *
 * @param String $db    the current database
 * @param String $table the current table
 *
 * @return void
 */
function PMA_getRelationalValues($db, $table)
{
    $column = $_REQUEST['column'];
    if ($_SESSION['tmpval']['relational_display'] == 'D'
        && isset($_REQUEST['relation_key_or_display_column'])
        && $_REQUEST['relation_key_or_display_column']
    ) {
        $curr_value = $_REQUEST['relation_key_or_display_column'];
    } else {
        $curr_value = $_REQUEST['curr_value'];
    }
    $dropdown = PMA_getHtmlForRelationalColumnDropdown(
        $db, $table, $column, $curr_value
    );
    $response = Response::getInstance();
    $response->addJSON('dropdown', $dropdown);
    exit;
}

/**
 * Function to get values for Enum or Set Columns
 *
 * @param String $db         the current database
 * @param String $table      the current table
 * @param String $columnType whether enum or set
 *
 * @return void
 */
function PMA_getEnumOrSetValues($db, $table, $columnType)
{
    $column = $_REQUEST['column'];
    $curr_value = $_REQUEST['curr_value'];
    $response = Response::getInstance();
    if ($columnType == "enum") {
        $dropdown = PMA_getHtmlForEnumColumnDropdown(
            $db, $table, $column, $curr_value
        );
        $response->addJSON('dropdown', $dropdown);
    } else {
        $select = PMA_getHtmlForSetColumn(
            $db, $table, $column, $curr_value
        );
        $response->addJSON('select', $select);
    }
    exit;
}

/**
 * Function to get the default sql query for browsing page
 *
 * @param String $db    the current database
 * @param String $table the current table
 *
 * @return String $sql_query the default $sql_query for browse page
 */
function PMA_getDefaultSqlQueryForBrowse($db, $table)
{
    $bookmark = Bookmark::get(
        $db,
        $table,
        'label',
        false,
        true
    );

    if (! empty($bookmark) && ! empty($bookmark->getQuery())) {
        $GLOBALS['using_bookmark_message'] = Message::notice(
            __('Using bookmark "%s" as default browse query.')
        );
        $GLOBALS['using_bookmark_message']->addParam($table);
        $GLOBALS['using_bookmark_message']->addHtml(
            PMA\libraries\Util::showDocu('faq', 'faq6-22')
        );
        $sql_query = $bookmark->getQuery();
    } else {

        $defaultOrderByClause = '';

        if (isset($GLOBALS['cfg']['TablePrimaryKeyOrder'])
            && ($GLOBALS['cfg']['TablePrimaryKeyOrder'] !== 'NONE')
        ) {

            $primaryKey     = null;
            $primary        = PMA\libraries\Index::getPrimary($table, $db);

            if ($primary !== false) {

                $primarycols    = $primary->getColumns();

                foreach ($primarycols as $col) {
                    $primaryKey = $col->getName();
                    break;
                }

                if ($primaryKey != null) {
                    $defaultOrderByClause = ' ORDER BY '
                        . PMA\libraries\Util::backquote($table) . '.'
                        . PMA\libraries\Util::backquote($primaryKey) . ' '
                        . $GLOBALS['cfg']['TablePrimaryKeyOrder'];
                }

            }

        }

        $sql_query = 'SELECT * FROM ' . PMA\libraries\Util::backquote($table)
            . $defaultOrderByClause;

    }

    return $sql_query;
}

/**
 * Responds an error when an error happens when executing the query
 *
 * @param boolean $is_gotofile    whether goto file or not
 * @param String  $error          error after executing the query
 * @param String  $full_sql_query full sql query
 *
 * @return void
 */
function PMA_handleQueryExecuteError($is_gotofile, $error, $full_sql_query)
{
    if ($is_gotofile) {
        $message = PMA\libraries\Message::rawError($error);
        $response = Response::getInstance();
        $response->setRequestStatus(false);
        $response->addJSON('message', $message);
    } else {
        PMA\libraries\Util::mysqlDie($error, $full_sql_query, '', '');
    }
    exit;
}

/**
 * Function to store the query as a bookmark
 *
 * @param String  $db                     the current database
 * @param String  $bkm_user               the bookmarking user
 * @param String  $sql_query_for_bookmark the query to be stored in bookmark
 * @param String  $bkm_label              bookmark label
 * @param boolean $bkm_replace            whether to replace existing bookmarks
 *
 * @return void
 */
function PMA_storeTheQueryAsBookmark($db, $bkm_user, $sql_query_for_bookmark,
    $bkm_label, $bkm_replace
) {
    $bfields = array(
                 'bkm_database' => $db,
                 'bkm_user'  => $bkm_user,
                 'bkm_sql_query' => $sql_query_for_bookmark,
                 'bkm_label' => $bkm_label
    );

    // Should we replace bookmark?
    if (isset($bkm_replace)) {
        $bookmarks = Bookmark::getList($db);
        foreach ($bookmarks as $bookmark) {
            if ($bookmark->getLabel() == $bkm_label) {
                $bookmark->delete();
            }
        }
    }

    $bookmark = Bookmark::createBookmark($bfields, isset($_POST['bkm_all_users']));
    $bookmark->save();
}

/**
 * Executes the SQL query and measures its execution time
 *
 * @param String $full_sql_query the full sql query
 *
 * @return array ($result, $querytime)
 */
function PMA_executeQueryAndMeasureTime($full_sql_query)
{
    // close session in case the query takes too long
    session_write_close();

    // Measure query time.
    $querytime_before = array_sum(explode(' ', microtime()));

    $result = @$GLOBALS['dbi']->tryQuery(
        $full_sql_query, null, PMA\libraries\DatabaseInterface::QUERY_STORE
    );
    $querytime_after = array_sum(explode(' ', microtime()));

    // reopen session
    session_start();

    return array($result, $querytime_after - $querytime_before);
}

/**
 * Function to get the affected or changed number of rows after executing a query
 *
 * @param boolean $is_affected whether the query affected a table
 * @param mixed   $result      results of executing the query
 *
 * @return int    $num_rows    number of rows affected or changed
 */
function PMA_getNumberOfRowsAffectedOrChanged($is_affected, $result)
{
    if (! $is_affected) {
        $num_rows = ($result) ? @$GLOBALS['dbi']->numRows($result) : 0;
    } else {
        $num_rows = @$GLOBALS['dbi']->affectedRows();
    }

    return $num_rows;
}

/**
 * Checks if the current database has changed
 * This could happen if the user sends a query like "USE `database`;"
 *
 * @param String $db the database in the query
 *
 * @return int $reload whether to reload the navigation(1) or not(0)
 */
function PMA_hasCurrentDbChanged($db)
{
    if (strlen($db) > 0) {
        $current_db = $GLOBALS['dbi']->fetchValue('SELECT DATABASE()');
        // $current_db is false, except when a USE statement was sent
        return ($current_db != false) && ($db !== $current_db);
    }

    return false;
}

/**
 * If a table, database or column gets dropped, clean comments.
 *
 * @param String $db     current database
 * @param String $table  current table
 * @param String $column current column
 * @param bool   $purge  whether purge set or not
 *
 * @return array $extra_data
 */
function PMA_cleanupRelations($db, $table, $column, $purge)
{
    include_once 'libraries/relation_cleanup.lib.php';

    if (! empty($purge) && strlen($db) > 0) {
        if (strlen($table) > 0) {
            if (isset($column) && strlen($column) > 0) {
                PMA_relationsCleanupColumn($db, $table, $column);
            } else {
                PMA_relationsCleanupTable($db, $table);
            }
        } else {
            PMA_relationsCleanupDatabase($db);
        }
    }
}

/**
 * Function to count the total number of rows for the same 'SELECT' query without
 * the 'LIMIT' clause that may have been programatically added
 *
 * @param int    $num_rows             number of rows affected/changed by the query
 * @param bool   $justBrowsing         whether just browsing or not
 * @param string $db                   the current database
 * @param string $table                the current table
 * @param array  $analyzed_sql_results the analyzed query and other variables set
 *                                     after analyzing the query
 *
 * @return int $unlim_num_rows unlimited number of rows
 */
function PMA_countQueryResults(
    $num_rows, $justBrowsing, $db, $table, $analyzed_sql_results
) {

    /* Shortcut for not analyzed/empty query */
    if (empty($analyzed_sql_results)) {
        return 0;
    }

    if (!PMA_isAppendLimitClause($analyzed_sql_results)) {
        // if we did not append a limit, set this to get a correct
        // "Showing rows..." message
        // $_SESSION['tmpval']['max_rows'] = 'all';
        $unlim_num_rows = $num_rows;
    } elseif ($analyzed_sql_results['querytype'] == 'SELECT'
        || $analyzed_sql_results['is_subquery']
    ) {
        //    c o u n t    q u e r y

        // If we are "just browsing", there is only one table (and no join),
        // and no WHERE clause (or just 'WHERE 1 '),
        // we do a quick count (which uses MaxExactCount) because
        // SQL_CALC_FOUND_ROWS is not quick on large InnoDB tables

        // However, do not count again if we did it previously
        // due to $find_real_end == true
        if ($justBrowsing) {
            // Get row count (is approximate for InnoDB)
            $unlim_num_rows = $GLOBALS['dbi']->getTable($db, $table)->countRecords();
            /**
             * @todo Can we know at this point that this is InnoDB,
             *       (in this case there would be no need for getting
             *       an exact count)?
             */
            if ($unlim_num_rows < $GLOBALS['cfg']['MaxExactCount']) {
                // Get the exact count if approximate count
                // is less than MaxExactCount
                /**
                 * @todo In countRecords(), MaxExactCount is also verified,
                 *       so can we avoid checking it twice?
                 */
                $unlim_num_rows = $GLOBALS['dbi']->getTable($db, $table)
                    ->countRecords(true);
            }

        } else {

            // The SQL_CALC_FOUND_ROWS option of the SELECT statement is used.

            // For UNION statements, only a SQL_CALC_FOUND_ROWS is required
            // after the first SELECT.

            $count_query = PhpMyAdmin\SqlParser\Utils\Query::replaceClause(
                $analyzed_sql_results['statement'],
                $analyzed_sql_results['parser']->list,
                'SELECT SQL_CALC_FOUND_ROWS',
                null,
                true
            );

            // Another LIMIT clause is added to avoid long delays.
            // A complete result will be returned anyway, but the LIMIT would
            // stop the query as soon as the result that is required has been
            // computed.

            if (empty($analyzed_sql_results['union'])) {
                $count_query .= ' LIMIT 1';
            }

            // Running the count query.
            $GLOBALS['dbi']->tryQuery($count_query);

            $unlim_num_rows = $GLOBALS['dbi']->fetchValue('SELECT FOUND_ROWS()');
        } // end else "just browsing"
    } else {// not $is_select
        $unlim_num_rows = 0;
    }

    return $unlim_num_rows;
}

/**
 * Function to handle all aspects relating to executing the query
 *
 * @param array   $analyzed_sql_results   analyzed sql results
 * @param String  $full_sql_query         full sql query
 * @param boolean $is_gotofile            whether to go to a file
 * @param String  $db                     current database
 * @param String  $table                  current table
 * @param boolean $find_real_end          whether to find the real end
 * @param String  $sql_query_for_bookmark sql query to be stored as bookmark
 * @param array   $extra_data             extra data
 *
 * @return mixed
 */
function PMA_executeTheQuery($analyzed_sql_results, $full_sql_query, $is_gotofile,
    $db, $table, $find_real_end, $sql_query_for_bookmark, $extra_data
) {
    $response = Response::getInstance();
    $response->getHeader()->getMenu()->setTable($table);

    // Only if we ask to see the php code
    if (isset($GLOBALS['show_as_php'])) {
        $result = null;
        $num_rows = 0;
        $unlim_num_rows = 0;
    } else { // If we don't ask to see the php code
        if (isset($_SESSION['profiling'])
            && PMA\libraries\Util::profilingSupported()
        ) {
            $GLOBALS['dbi']->query('SET PROFILING=1;');
        }

        list(
            $result,
            $GLOBALS['querytime']
        ) = PMA_executeQueryAndMeasureTime($full_sql_query);

        // Displays an error message if required and stop parsing the script
        $error = $GLOBALS['dbi']->getError();
        if ($error && $GLOBALS['cfg']['IgnoreMultiSubmitErrors']) {
            $extra_data['error'] = $error;
        } elseif ($error) {
            PMA_handleQueryExecuteError($is_gotofile, $error, $full_sql_query);
        }

        // If there are no errors and bookmarklabel was given,
        // store the query as a bookmark
        if (! empty($_POST['bkm_label']) && ! empty($sql_query_for_bookmark)) {
            $cfgBookmark = Bookmark::getParams();
            PMA_storeTheQueryAsBookmark(
                $db, $cfgBookmark['user'],
                $sql_query_for_bookmark, $_POST['bkm_label'],
                isset($_POST['bkm_replace']) ? $_POST['bkm_replace'] : null
            );
        } // end store bookmarks

        // Gets the number of rows affected/returned
        // (This must be done immediately after the query because
        // mysql_affected_rows() reports about the last query done)
        $num_rows = PMA_getNumberOfRowsAffectedOrChanged(
            $analyzed_sql_results['is_affected'], $result
        );

        // Grabs the profiling results
        if (isset($_SESSION['profiling'])
            && PMA\libraries\Util::profilingSupported()
        ) {
            $profiling_results = $GLOBALS['dbi']->fetchResult('SHOW PROFILE;');
        }

        $justBrowsing = PMA_isJustBrowsing(
            $analyzed_sql_results, isset($find_real_end) ? $find_real_end : null
        );

        $unlim_num_rows = PMA_countQueryResults(
            $num_rows, $justBrowsing, $db, $table, $analyzed_sql_results
        );

        PMA_cleanupRelations(
            isset($db) ? $db : '',
            isset($table) ? $table : '',
            isset($_REQUEST['dropped_column']) ? $_REQUEST['dropped_column'] : null,
            isset($_REQUEST['purge']) ? $_REQUEST['purge'] : null
        );

        if (isset($_REQUEST['dropped_column'])
            && strlen($db) > 0
            && strlen($table) > 0
        ) {
            // to refresh the list of indexes (Ajax mode)
            $extra_data['indexes_list'] = PMA\libraries\Index::getHtmlForIndexes(
                $table,
                $db
            );
        }
    }

    return array($result, $num_rows, $unlim_num_rows,
        isset($profiling_results) ? $profiling_results : null, $extra_data
    );
}
/**
 * Delete related tranformation information
 *
 * @param String $db                   current database
 * @param String $table                current table
 * @param array  $analyzed_sql_results analyzed sql results
 *
 * @return void
 */
function PMA_deleteTransformationInfo($db, $table, $analyzed_sql_results)
{
    include_once 'libraries/transformations.lib.php';
    if (! isset($analyzed_sql_results['statement'])) {
        return;
    }
    $statement = $analyzed_sql_results['statement'];
    if ($statement instanceof PhpMyAdmin\SqlParser\Statements\AlterStatement) {
        if (!empty($statement->altered[0])
            && $statement->altered[0]->options->has('DROP')
        ) {
            if (!empty($statement->altered[0]->field->column)) {
                PMA_clearTransformations(
                    $db,
                    $table,
                    $statement->altered[0]->field->column
                );
            }
        }
    } elseif ($statement instanceof PhpMyAdmin\SqlParser\Statements\DropStatement) {
        PMA_clearTransformations($db, $table);
    }
}

/**
 * Function to get the message for the no rows returned case
 *
 * @param string $message_to_show      message to show
 * @param array  $analyzed_sql_results analyzed sql results
 * @param int    $num_rows             number of rows
 *
 * @return string $message
 */
function PMA_getMessageForNoRowsReturned($message_to_show,
    $analyzed_sql_results, $num_rows
) {
    if ($analyzed_sql_results['querytype'] == 'DELETE"') {
        $message = Message::getMessageForDeletedRows($num_rows);
    } elseif ($analyzed_sql_results['is_insert']) {
        if ($analyzed_sql_results['querytype'] == 'REPLACE') {
            // For REPLACE we get DELETED + INSERTED row count,
            // so we have to call it affected
            $message = Message::getMessageForAffectedRows($num_rows);
        } else {
            $message = Message::getMessageForInsertedRows($num_rows);
        }
        $insert_id = $GLOBALS['dbi']->insertId();
        if ($insert_id != 0) {
            // insert_id is id of FIRST record inserted in one insert,
            // so if we inserted multiple rows, we had to increment this
            $message->addText('[br]');
            // need to use a temporary because the Message class
            // currently supports adding parameters only to the first
            // message
            $_inserted = Message::notice(__('Inserted row id: %1$d'));
            $_inserted->addParam($insert_id + $num_rows - 1);
            $message->addMessage($_inserted);
        }
    } elseif ($analyzed_sql_results['is_affected']) {
        $message = Message::getMessageForAffectedRows($num_rows);

        // Ok, here is an explanation for the !$is_select.
        // The form generated by sql_query_form.lib.php
        // and db_sql.php has many submit buttons
        // on the same form, and some confusion arises from the
        // fact that $message_to_show is sent for every case.
        // The $message_to_show containing a success message and sent with
        // the form should not have priority over errors
    } elseif (! empty($message_to_show)
        && $analyzed_sql_results['querytype'] != 'SELECT'
    ) {
        $message = Message::rawSuccess(htmlspecialchars($message_to_show));
    } elseif (! empty($GLOBALS['show_as_php'])) {
        $message = Message::success(__('Showing as PHP code'));
    } elseif (isset($GLOBALS['show_as_php'])) {
        /* User disable showing as PHP, query is only displayed */
        $message = Message::notice(__('Showing SQL query'));
    } else {
        $message = Message::success(
            __('MySQL returned an empty result set (i.e. zero rows).')
        );
    }

    if (isset($GLOBALS['querytime'])) {
        $_querytime = Message::notice(
            '(' . __('Query took %01.4f seconds.') . ')'
        );
        $_querytime->addParam($GLOBALS['querytime']);
        $message->addMessage($_querytime);
    }

    // In case of ROLLBACK, notify the user.
    if (isset($_REQUEST['rollback_query'])) {
        $message->addText(__('[ROLLBACK occurred.]'));
    }

    return $message;
}

/**
 * Function to respond back when the query returns zero rows
 * This method is called
 * 1-> When browsing an empty table
 * 2-> When executing a query on a non empty table which returns zero results
 * 3-> When executing a query on an empty table
 * 4-> When executing an INSERT, UPDATE, DELETE query from the SQL tab
 * 5-> When deleting a row from BROWSE tab
 * 6-> When searching using the SEARCH tab which returns zero results
 * 7-> When changing the structure of the table except change operation
 *
 * @param array          $analyzed_sql_results analyzed sql results
 * @param string         $db                   current database
 * @param string         $table                current table
 * @param string         $message_to_show      message to show
 * @param int            $num_rows             number of rows
 * @param DisplayResults $displayResultsObject DisplayResult instance
 * @param array          $extra_data           extra data
 * @param string         $pmaThemeImage        uri of the theme image
 * @param object         $result               executed query results
 * @param string         $sql_query            sql query
 * @param string         $complete_query       complete sql query
 *
 * @return string html
 */
function PMA_getQueryResponseForNoResultsReturned($analyzed_sql_results, $db,
    $table, $message_to_show, $num_rows, $displayResultsObject, $extra_data,
    $pmaThemeImage, $result, $sql_query, $complete_query
) {
    if (PMA_isDeleteTransformationInfo($analyzed_sql_results)) {
        PMA_deleteTransformationInfo($db, $table, $analyzed_sql_results);
    }

    if (isset($extra_data['error'])) {
        $message = PMA\libraries\Message::rawError($extra_data['error']);
    } else {
        $message = PMA_getMessageForNoRowsReturned(
            isset($message_to_show) ? $message_to_show : null,
            $analyzed_sql_results, $num_rows
        );
    }

    $html_output = '';
    $html_message = PMA\libraries\Util::getMessage(
        $message, $GLOBALS['sql_query'], 'success'
    );
    $html_output .= $html_message;
    if (!isset($GLOBALS['show_as_php'])) {

        if (! empty($GLOBALS['reload'])) {
            $extra_data['reload'] = 1;
            $extra_data['db'] = $GLOBALS['db'];
        }

        // For ajax requests add message and sql_query as JSON
        if (empty($_REQUEST['ajax_page_request'])) {
            $extra_data['message'] = $message;
            if ($GLOBALS['cfg']['ShowSQL']) {
                $extra_data['sql_query'] = $html_message;
            }
        }

        $response = Response::getInstance();
        $response->addJSON(isset($extra_data) ? $extra_data : array());

        if (!empty($analyzed_sql_results['is_select']) &&
                !isset($extra_data['error'])) {
            $url_query = isset($url_query) ? $url_query : null;

            $displayParts = array(
                'edit_lnk' => null,
                'del_lnk' => null,
                'sort_lnk' => '1',
                'nav_bar'  => '0',
                'bkm_form' => '1',
                'text_btn' => '1',
                'pview_lnk' => '1'
            );

            $html_output .= PMA_getHtmlForSqlQueryResultsTable(
                $displayResultsObject,
                $pmaThemeImage, $url_query, $displayParts,
                false, 0, $num_rows, true, $result,
                $analyzed_sql_results, true
            );

            $html_output .= $displayResultsObject->getCreateViewQueryResultOp(
                $analyzed_sql_results
            );

            $cfgBookmark = Bookmark::getParams();
            if ($cfgBookmark) {
                $html_output .= PMA_getHtmlForBookmark(
                    $displayParts,
                    $cfgBookmark,
                    $sql_query, $db, $table,
                    isset($complete_query) ? $complete_query : $sql_query,
                    $cfgBookmark['user']
                );
            }
        }
    }

    return $html_output;
}

/**
 * Function to send response for ajax grid edit
 *
 * @param object $result result of the executed query
 *
 * @return void
 */
function PMA_sendResponseForGridEdit($result)
{
    $row = $GLOBALS['dbi']->fetchRow($result);
    $field_flags = $GLOBALS['dbi']->fieldFlags($result, 0);
    if (stristr($field_flags, PMA\libraries\DisplayResults::BINARY_FIELD)) {
        $row[0] = bin2hex($row[0]);
    }
    $response = Response::getInstance();
    $response->addJSON('value', $row[0]);
    exit;
}

/**
 * Function to get html for the sql query results div
 *
 * @param string  $previous_update_query_html html for the previously executed query
 * @param string  $profiling_chart_html       html for profiling
 * @param Message $missing_unique_column_msg  message for the missing unique column
 * @param Message $bookmark_created_msg       message for bookmark creation
 * @param string  $table_html                 html for the table for displaying sql
 *                                            results
 * @param string  $indexes_problems_html      html for displaying errors in indexes
 * @param string  $bookmark_support_html      html for displaying bookmark form
 *
 * @return string $html_output
 */
function PMA_getHtmlForSqlQueryResults($previous_update_query_html,
    $profiling_chart_html, $missing_unique_column_msg, $bookmark_created_msg,
    $table_html, $indexes_problems_html, $bookmark_support_html
) {
    //begin the sqlqueryresults div here. container div
    $html_output = '<div class="sqlqueryresults ajax">';
    $html_output .= isset($previous_update_query_html)
        ? $previous_update_query_html : '';
    $html_output .= isset($profiling_chart_html) ? $profiling_chart_html : '';
    $html_output .= isset($missing_unique_column_msg)
        ? $missing_unique_column_msg->getDisplay() : '';
    $html_output .= isset($bookmark_created_msg)
        ? $bookmark_created_msg->getDisplay() : '';
    $html_output .= $table_html;
    $html_output .= isset($indexes_problems_html) ? $indexes_problems_html : '';
    $html_output .= isset($bookmark_support_html) ? $bookmark_support_html : '';
    $html_output .= '</div>'; // end sqlqueryresults div

    return $html_output;
}

/**
 * Returns a message for successful creation of a bookmark or null if a bookmark
 * was not created
 *
 * @return Message $bookmark_created_msg
 */
function PMA_getBookmarkCreatedMessage()
{
    if (isset($_GET['label'])) {
        $bookmark_created_msg = Message::success(
            __('Bookmark %s has been created.')
        );
        $bookmark_created_msg->addParam($_GET['label']);
    } else {
        $bookmark_created_msg = null;
    }

    return $bookmark_created_msg;
}

/**
 * Function to get html for the sql query results table
 *
 * @param DisplayResults $displayResultsObject instance of DisplayResult
 * @param string         $pmaThemeImage        theme image uri
 * @param string         $url_query            url query
 * @param array          $displayParts         the parts to display
 * @param bool           $editable             whether the result table is
 *                                             editable or not
 * @param int            $unlim_num_rows       unlimited number of rows
 * @param int            $num_rows             number of rows
 * @param bool           $showtable            whether to show table or not
 * @param object         $result               result of the executed query
 * @param array          $analyzed_sql_results analyzed sql results
 * @param bool           $is_limited_display   Show only limited operations or not
 *
 * @return String
 */
function PMA_getHtmlForSqlQueryResultsTable($displayResultsObject,
    $pmaThemeImage, $url_query, $displayParts,
    $editable, $unlim_num_rows, $num_rows, $showtable, $result,
    $analyzed_sql_results, $is_limited_display = false
) {
    $printview = isset($_REQUEST['printview']) && $_REQUEST['printview'] == '1' ? '1' : null;
    $table_html = '';
    $browse_dist = ! empty($_REQUEST['is_browse_distinct']);

    if ($analyzed_sql_results['is_procedure']) {

        do {
            if (! isset($result)) {
                $result = $GLOBALS['dbi']->storeResult();
            }
            $num_rows = $GLOBALS['dbi']->numRows($result);

            if ($result !== false && $num_rows > 0) {

                $fields_meta = $GLOBALS['dbi']->getFieldsMeta($result);
                $fields_cnt  = count($fields_meta);

                $displayResultsObject->setProperties(
                    $num_rows,
                    $fields_meta,
                    $analyzed_sql_results['is_count'],
                    $analyzed_sql_results['is_export'],
                    $analyzed_sql_results['is_func'],
                    $analyzed_sql_results['is_analyse'],
                    $num_rows,
                    $fields_cnt,
                    $GLOBALS['querytime'],
                    $pmaThemeImage,
                    $GLOBALS['text_dir'],
                    $analyzed_sql_results['is_maint'],
                    $analyzed_sql_results['is_explain'],
                    $analyzed_sql_results['is_show'],
                    $showtable,
                    $printview,
                    $url_query,
                    $editable,
                    $browse_dist
                );

                $displayParts = array(
                    'edit_lnk' => $displayResultsObject::NO_EDIT_OR_DELETE,
                    'del_lnk' => $displayResultsObject::NO_EDIT_OR_DELETE,
                    'sort_lnk' => '1',
                    'nav_bar'  => '1',
                    'bkm_form' => '1',
                    'text_btn' => '1',
                    'pview_lnk' => '1'
                );

                $table_html .= $displayResultsObject->getTable(
                    $result,
                    $displayParts,
                    $analyzed_sql_results,
                    $is_limited_display
                );
            }

            $GLOBALS['dbi']->freeResult($result);
            unset($result);

        } while ($GLOBALS['dbi']->moreResults() && $GLOBALS['dbi']->nextResult());

    } else {
        if (isset($result) && $result !== false) {
            $fields_meta = $GLOBALS['dbi']->getFieldsMeta($result);
            $fields_cnt  = count($fields_meta);
        }
        $_SESSION['is_multi_query'] = false;
        $displayResultsObject->setProperties(
            $unlim_num_rows,
            $fields_meta,
            $analyzed_sql_results['is_count'],
            $analyzed_sql_results['is_export'],
            $analyzed_sql_results['is_func'],
            $analyzed_sql_results['is_analyse'],
            $num_rows,
            $fields_cnt, $GLOBALS['querytime'],
            $pmaThemeImage, $GLOBALS['text_dir'],
            $analyzed_sql_results['is_maint'],
            $analyzed_sql_results['is_explain'],
            $analyzed_sql_results['is_show'],
            $showtable,
            $printview,
            $url_query,
            $editable,
            $browse_dist
        );

        $table_html .= $displayResultsObject->getTable(
            $result,
            $displayParts,
            $analyzed_sql_results,
            $is_limited_display
        );
        $GLOBALS['dbi']->freeResult($result);
    }

    return $table_html;
}

/**
 * Function to get html for the previous query if there is such. If not will return
 * null
 *
 * @param string $disp_query   display query
 * @param bool   $showSql      whether to show sql
 * @param array  $sql_data     sql data
 * @param string $disp_message display message
 *
 * @return string $previous_update_query_html
 */
function PMA_getHtmlForPreviousUpdateQuery($disp_query, $showSql, $sql_data,
    $disp_message
) {
    // previous update query (from tbl_replace)
    if (isset($disp_query) && ($showSql == true) && empty($sql_data)) {
        $previous_update_query_html = PMA\libraries\Util::getMessage(
            $disp_message, $disp_query, 'success'
        );
    } else {
        $previous_update_query_html = null;
    }

    return $previous_update_query_html;
}

/**
 * To get the message if a column index is missing. If not will return null
 *
 * @param string  $table      current table
 * @param string  $db         current database
 * @param boolean $editable   whether the results table can be editable or not
 * @param boolean $has_unique whether there is a unique key
 *
 * @return Message $message
 */
function PMA_getMessageIfMissingColumnIndex($table, $db, $editable, $has_unique)
{
    if (!empty($table) && ($GLOBALS['dbi']->isSystemSchema($db) || !$editable)) {
        $missing_unique_column_msg = Message::notice(
            sprintf(
                __(
                    'Current selection does not contain a unique column.'
                    . ' Grid edit, checkbox, Edit, Copy and Delete features'
                    . ' are not available. %s'
                ),
                PMA\libraries\Util::showDocu(
                    'config',
                    'cfg_RowActionLinksWithoutUnique'
                )
            )
        );
    } elseif (! empty($table) && ! $has_unique) {
        $missing_unique_column_msg = Message::notice(
            sprintf(
                __(
                    'Current selection does not contain a unique column.'
                    . ' Grid edit, Edit, Copy and Delete features may result in'
                    . ' undesired behavior. %s'
                ),
                PMA\libraries\Util::showDocu(
                    'config',
                    'cfg_RowActionLinksWithoutUnique'
                )
            )
        );
    } else {
        $missing_unique_column_msg = null;
    }

    return $missing_unique_column_msg;
}

/**
 * Function to get html to display problems in indexes
 *
 * @param string     $query_type     query type
 * @param array|null $selectedTables array of table names selected from the
 *                                   database structure page, for an action
 *                                   like check table, optimize table,
 *                                   analyze table or repair table
 * @param string     $db             current database
 *
 * @return string
 */
function PMA_getHtmlForIndexesProblems($query_type, $selectedTables, $db)
{
    // BEGIN INDEX CHECK See if indexes should be checked.
    if (isset($query_type)
        && $query_type == 'check_tbl'
        && isset($selectedTables)
        && is_array($selectedTables)
    ) {
        $indexes_problems_html = '';
        foreach ($selectedTables as $tbl_name) {
            $check = PMA\libraries\Index::findDuplicates($tbl_name, $db);
            if (! empty($check)) {
                $indexes_problems_html .= sprintf(
                    __('Problems with indexes of table `%s`'), $tbl_name
                );
                $indexes_problems_html .= $check;
            }
        }
    } else {
        $indexes_problems_html = null;
    }

    return $indexes_problems_html;
}

/**
 * Function to display results when the executed query returns non empty results
 *
 * @param object         $result               executed query results
 * @param array          $analyzed_sql_results analysed sql results
 * @param string         $db                   current database
 * @param string         $table                current table
 * @param string         $message              message to show
 * @param array          $sql_data             sql data
 * @param DisplayResults $displayResultsObject Instance of DisplayResults
 * @param string         $pmaThemeImage        uri of the theme image
 * @param int            $unlim_num_rows       unlimited number of rows
 * @param int            $num_rows             number of rows
 * @param string         $disp_query           display query
 * @param string         $disp_message         display message
 * @param array          $profiling_results    profiling results
 * @param string         $query_type           query type
 * @param array|null     $selectedTables       array of table names selected
 *                                             from the database structure page, for
 *                                             an action like check table,
 *                                             optimize table, analyze table or
 *                                             repair table
 * @param string         $sql_query            sql query
 * @param string         $complete_query       complete sql query
 *
 * @return string html
 */
function PMA_getQueryResponseForResultsReturned($result, $analyzed_sql_results,
    $db, $table, $message, $sql_data, $displayResultsObject, $pmaThemeImage,
    $unlim_num_rows, $num_rows, $disp_query, $disp_message, $profiling_results,
    $query_type, $selectedTables, $sql_query, $complete_query
) {
    // If we are retrieving the full value of a truncated field or the original
    // value of a transformed field, show it here
    if (isset($_REQUEST['grid_edit']) && $_REQUEST['grid_edit'] == true) {
        PMA_sendResponseForGridEdit($result);
        // script has exited at this point
    }

    // Gets the list of fields properties
    if (isset($result) && $result) {
        $fields_meta = $GLOBALS['dbi']->getFieldsMeta($result);
    }

    // Should be initialized these parameters before parsing
    $showtable = isset($showtable) ? $showtable : null;
    $url_query = isset($url_query) ? $url_query : null;

    $response = Response::getInstance();
    $header   = $response->getHeader();
    $scripts  = $header->getScripts();

    $just_one_table = PMA_resultSetHasJustOneTable($fields_meta);

    // hide edit and delete links:
    // - for information_schema
    // - if the result set does not contain all the columns of a unique key
    //   (unless this is an updatable view)
    // - if the SELECT query contains a join or a subquery

    $updatableView = false;

    $statement = $analyzed_sql_results['statement'];
    if ($statement instanceof PhpMyAdmin\SqlParser\Statements\SelectStatement) {
        if (!empty($statement->expr)) {
            if ($statement->expr[0]->expr === '*') {
                $_table = new Table($table, $db);
                $updatableView = $_table->isUpdatableView();
            }
        }

        if ($analyzed_sql_results['join']
            || $analyzed_sql_results['is_subquery']
            || count($analyzed_sql_results['select_tables']) !== 1
        ) {
            $just_one_table = false;
        }
    }

    $has_unique = PMA_resultSetContainsUniqueKey(
        $db, $table, $fields_meta
    );

    $editable = ($has_unique
        || $GLOBALS['cfg']['RowActionLinksWithoutUnique']
        || $updatableView)
        && $just_one_table;

    $displayParts = array(
        'edit_lnk' => $displayResultsObject::UPDATE_ROW,
        'del_lnk' => $displayResultsObject::DELETE_ROW,
        'sort_lnk' => '1',
        'nav_bar'  => '1',
        'bkm_form' => '1',
        'text_btn' => '0',
        'pview_lnk' => '1'
    );

    if ($GLOBALS['dbi']->isSystemSchema($db) || !$editable) {
        $displayParts = array(
            'edit_lnk' => $displayResultsObject::NO_EDIT_OR_DELETE,
            'del_lnk' => $displayResultsObject::NO_EDIT_OR_DELETE,
            'sort_lnk' => '1',
            'nav_bar'  => '1',
            'bkm_form' => '1',
            'text_btn' => '1',
            'pview_lnk' => '1'
        );

    }
    if (isset($_REQUEST['printview']) && $_REQUEST['printview'] == '1') {
        $displayParts = array(
            'edit_lnk' => $displayResultsObject::NO_EDIT_OR_DELETE,
            'del_lnk' => $displayResultsObject::NO_EDIT_OR_DELETE,
            'sort_lnk' => '0',
            'nav_bar'  => '0',
            'bkm_form' => '0',
            'text_btn' => '0',
            'pview_lnk' => '0'
        );
    }

    if (isset($_REQUEST['table_maintenance'])) {
        $scripts->addFile('makegrid.js');
        $scripts->addFile('sql.js');
        $table_maintenance_html = '';
        if (isset($message)) {
            $message = Message::success($message);
            $table_maintenance_html = PMA\libraries\Util::getMessage(
                $message, $GLOBALS['sql_query'], 'success'
            );
        }
        $table_maintenance_html .= PMA_getHtmlForSqlQueryResultsTable(
            $displayResultsObject,
            $pmaThemeImage, $url_query, $displayParts,
            false, $unlim_num_rows, $num_rows, $showtable, $result,
            $analyzed_sql_results
        );
        if (empty($sql_data) || ($sql_data['valid_queries'] = 1)) {
            $response->addHTML($table_maintenance_html);
            exit();
        }
    }

    if (!isset($_REQUEST['printview']) || $_REQUEST['printview'] != '1') {
        $scripts->addFile('makegrid.js');
        $scripts->addFile('sql.js');
        unset($GLOBALS['message']);
        //we don't need to buffer the output in getMessage here.
        //set a global variable and check against it in the function
        $GLOBALS['buffer_message'] = false;
    }

    $previous_update_query_html = PMA_getHtmlForPreviousUpdateQuery(
        isset($disp_query) ? $disp_query : null,
        $GLOBALS['cfg']['ShowSQL'], isset($sql_data) ? $sql_data : null,
        isset($disp_message) ? $disp_message : null
    );

    $profiling_chart_html = PMA_getHtmlForProfilingChart(
        $url_query, $db, isset($profiling_results) ? $profiling_results :array()
    );

    $missing_unique_column_msg = PMA_getMessageIfMissingColumnIndex(
        $table, $db, $editable, $has_unique
    );

    $bookmark_created_msg = PMA_getBookmarkCreatedMessage();

    $table_html = PMA_getHtmlForSqlQueryResultsTable(
        $displayResultsObject,
        $pmaThemeImage, $url_query, $displayParts,
        $editable, $unlim_num_rows, $num_rows, $showtable, $result,
        $analyzed_sql_results
    );

    $indexes_problems_html = PMA_getHtmlForIndexesProblems(
        isset($query_type) ? $query_type : null,
        isset($selectedTables) ? $selectedTables : null, $db
    );

    $cfgBookmark = Bookmark::getParams();
    if ($cfgBookmark) {
        $bookmark_support_html = PMA_getHtmlForBookmark(
            $displayParts,
            $cfgBookmark,
            $sql_query, $db, $table,
            isset($complete_query) ? $complete_query : $sql_query,
            $cfgBookmark['user']
        );
    } else {
        $bookmark_support_html = '';
    }

    $html_output = isset($table_maintenance_html) ? $table_maintenance_html : '';

    $html_output .= PMA_getHtmlForSqlQueryResults(
        $previous_update_query_html, $profiling_chart_html,
        $missing_unique_column_msg, $bookmark_created_msg,
        $table_html, $indexes_problems_html, $bookmark_support_html
    );

    return $html_output;
}

/**
 * Function to execute the query and send the response
 *
 * @param array      $analyzed_sql_results   analysed sql results
 * @param bool       $is_gotofile            whether goto file or not
 * @param string     $db                     current database
 * @param string     $table                  current table
 * @param bool|null  $find_real_end          whether to find real end or not
 * @param string     $sql_query_for_bookmark the sql query to be stored as bookmark
 * @param array|null $extra_data             extra data
 * @param string     $message_to_show        message to show
 * @param string     $message                message
 * @param array|null $sql_data               sql data
 * @param string     $goto                   goto page url
 * @param string     $pmaThemeImage          uri of the PMA theme image
 * @param string     $disp_query             display query
 * @param string     $disp_message           display message
 * @param string     $query_type             query type
 * @param string     $sql_query              sql query
 * @param array|null $selectedTables         array of table names selected from the
 *                                           database structure page, for an action
 *                                           like check table, optimize table,
 *                                           analyze table or repair table
 * @param string     $complete_query         complete query
 *
 * @return void
 */
function PMA_executeQueryAndSendQueryResponse($analyzed_sql_results,
    $is_gotofile, $db, $table, $find_real_end, $sql_query_for_bookmark,
    $extra_data, $message_to_show, $message, $sql_data, $goto, $pmaThemeImage,
    $disp_query, $disp_message, $query_type, $sql_query, $selectedTables,
    $complete_query
) {
    if ($analyzed_sql_results == null) {
        // Parse and analyze the query
        include_once 'libraries/parse_analyze.lib.php';
        list(
            $analyzed_sql_results,
            $db,
            $table_from_sql
        ) = PMA_parseAnalyze($sql_query, $db);
        // @todo: possibly refactor
        extract($analyzed_sql_results);

        if ($table != $table_from_sql && !empty($table_from_sql)) {
            $table = $table_from_sql;
        }
    }

    $html_output = PMA_executeQueryAndGetQueryResponse(
        $analyzed_sql_results, // analyzed_sql_results
        $is_gotofile, // is_gotofile
        $db, // db
        $table, // table
        $find_real_end, // find_real_end
        $sql_query_for_bookmark, // sql_query_for_bookmark
        $extra_data, // extra_data
        $message_to_show, // message_to_show
        $message, // message
        $sql_data, // sql_data
        $goto, // goto
        $pmaThemeImage, // pmaThemeImage
        $disp_query, // disp_query
        $disp_message, // disp_message
        $query_type, // query_type
        $sql_query, // sql_query
        $selectedTables, // selectedTables
        $complete_query // complete_query
    );

    $response = Response::getInstance();
    $response->addHTML($html_output);
}

/**
 * Function to execute the query and send the response
 *
 * @param array      $analyzed_sql_results   analysed sql results
 * @param bool       $is_gotofile            whether goto file or not
 * @param string     $db                     current database
 * @param string     $table                  current table
 * @param bool|null  $find_real_end          whether to find real end or not
 * @param string     $sql_query_for_bookmark the sql query to be stored as bookmark
 * @param array|null $extra_data             extra data
 * @param string     $message_to_show        message to show
 * @param string     $message                message
 * @param array|null $sql_data               sql data
 * @param string     $goto                   goto page url
 * @param string     $pmaThemeImage          uri of the PMA theme image
 * @param string     $disp_query             display query
 * @param string     $disp_message           display message
 * @param string     $query_type             query type
 * @param string     $sql_query              sql query
 * @param array|null $selectedTables         array of table names selected from the
 *                                           database structure page, for an action
 *                                           like check table, optimize table,
 *                                           analyze table or repair table
 * @param string     $complete_query         complete query
 *
 * @return string html
 */
function PMA_executeQueryAndGetQueryResponse($analyzed_sql_results,
    $is_gotofile, $db, $table, $find_real_end, $sql_query_for_bookmark,
    $extra_data, $message_to_show, $message, $sql_data, $goto, $pmaThemeImage,
    $disp_query, $disp_message, $query_type, $sql_query, $selectedTables,
    $complete_query
) {
    // Handle disable/enable foreign key checks
    $default_fk_check = PMA\libraries\Util::handleDisableFKCheckInit();

    // Handle remembered sorting order, only for single table query.
    // Handling is not required when it's a union query
    // (the parser never sets the 'union' key to 0).
    // Handling is also not required if we came from the "Sort by key"
    // drop-down.
    if (! empty($analyzed_sql_results)
        && PMA_isRememberSortingOrder($analyzed_sql_results)
        && empty($analyzed_sql_results['union'])
        && ! isset($_REQUEST['sort_by_key'])
    ) {
        if (! isset($_SESSION['sql_from_query_box'])) {
            PMA_handleSortOrder($db, $table, $analyzed_sql_results, $sql_query);
        } else {
            unset($_SESSION['sql_from_query_box']);
        }

    }

    $displayResultsObject = new PMA\libraries\DisplayResults(
        $GLOBALS['db'], $GLOBALS['table'], $goto, $sql_query
    );
    $displayResultsObject->setConfigParamsForDisplayTable();

    // assign default full_sql_query
    $full_sql_query = $sql_query;

    // Do append a "LIMIT" clause?
    if (PMA_isAppendLimitClause($analyzed_sql_results)) {
        $full_sql_query = PMA_getSqlWithLimitClause($analyzed_sql_results);
    }

    $GLOBALS['reload'] = PMA_hasCurrentDbChanged($db);
    $GLOBALS['dbi']->selectDb($db);

    // Execute the query
    list($result, $num_rows, $unlim_num_rows, $profiling_results, $extra_data)
        = PMA_executeTheQuery(
            $analyzed_sql_results,
            $full_sql_query,
            $is_gotofile,
            $db,
            $table,
            isset($find_real_end) ? $find_real_end : null,
            isset($sql_query_for_bookmark) ? $sql_query_for_bookmark : null,
            isset($extra_data) ? $extra_data : null
        );

    // No rows returned -> move back to the calling page
    if ((0 == $num_rows && 0 == $unlim_num_rows)
        || $analyzed_sql_results['is_affected']
    ) {
        $html_output = PMA_getQueryResponseForNoResultsReturned(
            $analyzed_sql_results, $db, $table,
            isset($message_to_show) ? $message_to_show : null,
            $num_rows, $displayResultsObject, $extra_data,
            $pmaThemeImage, isset($result) ? $result : null,
            $sql_query, isset($complete_query) ? $complete_query : null
        );
    } else {
        // At least one row is returned -> displays a table with results
        $html_output = PMA_getQueryResponseForResultsReturned(
            isset($result) ? $result : null,
            $analyzed_sql_results,
            $db,
            $table,
            isset($message) ? $message : null,
            isset($sql_data) ? $sql_data : null,
            $displayResultsObject,
            $pmaThemeImage,
            $unlim_num_rows,
            $num_rows,
            isset($disp_query) ? $disp_query : null,
            isset($disp_message) ? $disp_message : null,
            $profiling_results,
            isset($query_type) ? $query_type : null,
            isset($selectedTables) ? $selectedTables : null,
            $sql_query,
            isset($complete_query) ? $complete_query : null
        );
    }

    // Handle disable/enable foreign key checks
    PMA\libraries\Util::handleDisableFKCheckCleanup($default_fk_check);

    return $html_output;
}

/**
 * Function to define pos to display a row
 *
 * @param Int $number_of_line Number of the line to display
 * @param Int $max_rows       Number of rows by page
 *
 * @return Int Start position to display the line
 */
function PMA_getStartPosToDisplayRow($number_of_line, $max_rows = null)
{
    if (null === $max_rows) {
        $max_rows = $_SESSION['tmpval']['max_rows'];
    }

    return @((ceil($number_of_line / $max_rows) - 1) * $max_rows);
}

/**
 * Function to calculate new pos if pos is higher than number of rows
 * of displayed table
 *
 * @param String   $db    Database name
 * @param String   $table Table name
 * @param Int|null $pos   Initial position
 *
 * @return Int Number of pos to display last page
 */
function PMA_calculatePosForLastPage($db, $table, $pos)
{
    if (null === $pos) {
        $pos = $_SESSION['tmpval']['pos'];
    }

    $_table = new Table($table, $db);
    $unlim_num_rows = $_table->countRecords(true);
    //If position is higher than number of rows
    if ($unlim_num_rows <= $pos && 0 != $pos) {
        $pos = PMA_getStartPosToDisplayRow($unlim_num_rows);
    }

    return $pos;
}
