* www.linkedin.com/profile/view?id=206267783
* https://github.com/Akshay-Hegde
*
* @version 1.0.2 ( update callback fix (28-07-2015 13:17:00), function_renamed (11-08-2015 10:24:00 ) )
* @copyright Copyright (c) 2010 through 2014, John Skoumbourdis
* @license https://github.com/scoumbourdis/grocery-crud/blob/master/license-grocery-crud.txt
*
* Thanks
* John Skoumbourdis, Amit Shah & Victor
*/
class Grocery_CRUD_Multiuploader extends grocery_CRUD
{
protected $callback_read_field = array();
protected $multi_upload_function ;
/* multiupload css directory */
protected $multiupload_css_path = 'assets/grocery_crud_multiuploader/styles/';
/* multiupload js directory */
protected $multiupload_javascript_path = 'assets/grocery_crud_multiuploader/scripts/';
/* Default upload directory */
protected $path_to_directory = 'assets/grocery_crud_multiuploader/GC_uploads';
/* No file text on list/read state */
protected $no_file_text = 'Empty
';
/* Anchor text */
protected $enable_full_path = true;
/* download button on read state */
protected $enable_download_button = true;
/* download button filetypes read state */
protected $download_allowed = null;
/* Table where files saved */
protected $file_table;
/* Primary Key of table */
protected $primary_key;
/* upload Field */
protected $upload_field;
/* Allowed file types */
protected $allowed_types = 'gif|jpeg|jpg|png|pdf|doc';
/* Show allowed types - edit state */
protected $show_allowed_types = true;
/* Upload options */
protected $hash_fields = array(
"upload_field",
"allowed_types",
"show_allowed_types",
"path_to_directory",
"no_file_text",
"enable_full_path",
"enable_download_button",
"download_allowed"
);
/* Temp storage */
protected $hash = array();
public $basic_model,$ci;
/*
* Constructor - Initializes and references CI
*/
public function __construct()
{
parent::__construct();
$this->ci = &get_instance();
$this->ci->load->model('grocery_CRUD_Model');
$this->basic_model = new grocery_CRUD_Model();
log_message('debug', "Grocery_CRUD_Multiuploader Class Initialized.");
}
/*
/* Callback read field
/* Thanks Amit shah for hint...
*/
public function callback_read_field($field, $callback = null)
{
$this->callback_read_field[$field] = $callback;
return $this;
}
/*
* Nothing much changed added field info
*/
protected function change_list($list,$types)
{
$primary_key = $this->get_primary_key();
$has_callbacks = !empty($this->callback_column);
$output_columns = $this->get_columns();
foreach($list as $num_row => $row)
{
foreach($output_columns as $column)
{
$field_name = $column->field_name;
$field_value = isset( $row->{"$column->field_name"} ) ? $row->{"$column->field_name"} : null;
if( $has_callbacks && isset($this->callback_column[$field_name]) )
$list[$num_row]->$field_name = call_user_func($this->callback_column[$field_name], $field_value, $row,$this->get_field_types()[$column->field_name]);
elseif(isset($types[$field_name]))
$list[$num_row]->$field_name = $this->change_list_value($types[$field_name] , $field_value);
else
$list[$num_row]->$field_name = $field_value;
}
}
return $list;
}
/*
* _is_image
*
* @access public
* @param string
* @return boolean
*/
function _is_image($name)
{
$imgs = array('.jpg','.png','.jpeg','.gif','.tiff');
$inp = array(substr($name, -4),substr($name, -5));
return count(array_intersect($imgs, $inp)) > 0;
}
/*
* _reset - used for multiple upload field...
*
* @access public
* @param string
* @return void
*/
function _reset($field)
{
foreach($this->hash_fields as $f){
$this->{"$f"} = $this->hash[$field][$f];
}
}
/*
* remote_file_exists
*
* @access public
* @param string
* @return boolean
*/
function remote_file_exists($url)
{
return(bool)preg_match( '~HTTP/1\.\d\s+200\s+OK~', @current(get_headers($url)) );
}
/*
* segment_check
*
* @access public
* @param string
* @param string
* @return void
*/
function segment_check($fun, $field)
{
if($this->ci->input->post("field") && $this->ci->input->post("field") === $field)
{
$this->_reset($field);
$seg = $this->ci->uri->segments;
if(!empty($seg))
{
if(
$seg[count($seg)-1] === $fun &&
in_array($seg[count($seg)],array('uploade','delete_file'))
)
{
switch ($seg[count($seg)])
{
case 'uploade':
$this->multiupload_file();
break;
case 'delete_file':
$this->delete_multi_file();
break;
default:
break;
}
die();
}
}
}
}
/*
* Callback override fix for callback_before_(insert|update|delete)
*
* @access protected
* @return void
*/
protected function pre_render()
{
$this->_initialize_variables();
$this->_initialize_helpers();
$this->_load_language();
$this->state_code = $this->getStateCode();
if($this->basic_model === null)
$this->set_default_Model();
$this->set_basic_db_table($this->get_table());
$this->_load_date_format();
$this->_set_primary_keys_to_model();
switch($this->state_code)
{
case 4 : // before delete
$this->_delete_this_key($this->get_state_info_from_url()->first_parameter);
break;
case 5 : // before insert
$_POST = $this->_set_files($_POST);
break;
case 6 :
// before update
$_POST = $this->_set_files($_POST,$this->get_state_info_from_url()->first_parameter);
break;
}
}
/*
* set_callbacks
*
* @access protected
* @param string
* @return void
*/
protected function set_callbacks($file_field)
{
/* Callback on list state */
$this->callback_column($file_field,array($this,'_file_url'));
/* Callback on add state */
$this->callback_add_field($file_field,array($this, 'add_upload_field'));
/* Callback on edit state */
$this->callback_edit_field($file_field,array($this, 'edit_upload_fied'));
/* Callback on read state */
// GC < 1.5 we have some issue...
$version = explode(".",grocery_CRUD::VERSION);
switch($version[1])
{
case 5:
$this->callback_read_field($file_field, array($this,'view_upload_field'));
break;
default :
if($this->getState() == "read")
{
$this->callback_field($file_field, array($this,'view_upload_field'));
}else
{
$this->callback_read_field($file_field, array($this,'view_upload_field'));
}
}
}
/*
* new_multi_upload
*
* @access public
* @param upload-field
* @param obj/array
* @return void
*/
public function new_multi_upload($field=null, $obj=null)
{
/* Whether field is null */
if(is_null($field))
{
throw new Exception("field is mandotory");
die();
}
$this->file_table = $this->basic_db_table;
$this->primary_key = $this->primary_key = $this->basic_model->get_primary_key($this->file_table);
$this->multi_upload_function = __FUNCTION__;
$this->upload_field = $field;
/* Whether field exists in table ? */
if(!$this->basic_model->field_exists($this->upload_field,$this->file_table))
{
throw new Exception("field : ".$this->upload_field." Not Found in table ".$this->file_table);
die();
}
/* Override default configuration */
if (!is_null($obj) && is_array($obj) && !empty($obj) )
{
foreach ($obj as $k => $v)
{
if (property_exists($this,$k))
{
$this->{"$k"} = $v;
}else
{
log_message('debug', "$k doesn't exists in Grocery_CRUD_Multiuploader.");
}
}
}
/* Upload directory exists ? */
if(!file_exists($this->path_to_directory))
{
throw new Exception("Directory does not exist : ".$this->path_to_directory);
die();
}
/* Upload directory has write permission ? */
if(!is_writable($this->path_to_directory))
{
throw new Exception("Not writable : ".$this->path_to_directory."\n Current Permission : ".substr(sprintf('%o', fileperms($this->path_to_directory)), -4));
die();
}
/* temp storage */
foreach($this->hash_fields as $f){
$this->hash[$field][$f] = $this->{"$f"};
}
/* Check whether req is to upload file / delete file */
$this->segment_check(__FUNCTION__,$field);
/* Initialize Callbacks */
$this->set_callbacks($field);
/* Set Scripts */
$this->set_scripts();
}
/*
* set_scripts
*
* @access protected
* @return void
*/
protected function set_scripts()
{
$css = array(
'assets/grocery_crud/css/ui/simple/' . grocery_CRUD::JQUERY_UI_CSS,
'assets/grocery_crud/css/jquery_plugins/file_upload/file-uploader.css',
'assets/grocery_crud/css/jquery_plugins/file_upload/jquery.fileupload-ui.css',
'assets/grocery_crud/css/jquery_plugins/fancybox/jquery.fancybox.css',
$this->multiupload_css_path.'multi_uploader.css',
);
$js = array(
'assets/grocery_crud/js/' . grocery_CRUD::JQUERY,
'assets/grocery_crud/js/jquery_plugins/ui/' . grocery_CRUD::JQUERY_UI_JS,
'assets/grocery_crud/js/jquery_plugins/tmpl.min.js',
'assets/grocery_crud/js/jquery_plugins/load-image.min.js',
'assets/grocery_crud/js/jquery_plugins/jquery.iframe-transport.js',
'assets/grocery_crud/js/jquery_plugins/jquery.fileupload.js',
'assets/grocery_crud/js/jquery_plugins/config/jquery.fileupload.config.js',
'assets/grocery_crud/js/jquery_plugins/jquery.fancybox.pack.js',
'assets/grocery_crud/js/jquery_plugins/jquery.easing-1.3.pack.js',
'assets/grocery_crud/js/jquery_plugins/config/jquery.fancybox.config.js',
$this->multiupload_javascript_path.'jquery.mousewheel.js',
);
foreach($css as $c){
$this->set_css($c);
}
foreach($js as $c){
$this->set_js($c);
}
}
/*
* add_upload_field callback
*
* @access public
* @return string
*/
function add_upload_field()
{
$args = func_get_args();
$name = $args[2]->name;
$this->_reset( $name );
$html = '
Upload a file
'.( $this->show_allowed_types ? ''.str_replace('|',',',$this->allowed_types).'' : null ) .'
';
$html.=$this->JS( $name );
return $html;
}
function edit_upload_fied($value, $primary_key)
{
$args = func_get_args();
$name = $args[2]->name;
$this->_reset( $name );
$result = $this->ci->db->get_where($this->file_table,array($this->primary_key => $primary_key));
$result = $result->result_array();
if(!empty($result))
{
$files = unserialize($result[0][$this->upload_field]);
}else
{
$files = array();
}
$html = '
Upload a file
'.( $this->show_allowed_types ? ''.str_replace('|',',',$this->allowed_types).'' : null ) .'
';
$html.= '';
$html.='';
if (!empty($files))
{
foreach ($files as $items)
{
$thisfile = base_url() . $this->path_to_directory . $items ;
if($this->remote_file_exists($thisfile))
{
if( strpos ($items,"." ) !== false )
{
if ($this->_is_image($items) === true)
{
$html.= '
';
}
else
{
$html.='
';
}
}
}
}
}
$html.='