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<?php defined('SYSPATH') OR die('No direct script access.'); |
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/** |
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* @package Despark/jam-upload |
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* @author Ivan Kerin |
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* @copyright (c) 2011-2012 Despark Ltd. |
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* @license http://creativecommons.org/licenses/by-sa/3.0/legalcode |
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*/ |
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abstract class Kohana_Jam_Field_Upload extends Jam_Field { |
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/** |
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* @var boolean whether or not to delete the old file when a new file is added |
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*/ |
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public $delete_file = TRUE; |
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/** |
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* @var boolean save the sizes of the image when saving the field |
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*/ |
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public $save_size = FALSE; |
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/** |
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* @var string the server used to store the file |
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*/ |
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public $server = 'default'; |
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/** |
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* @var string the path to the file |
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*/ |
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public $path = ":model/:id"; |
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/** |
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* @var array an array of transformation to apply to the image |
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*/ |
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public $transformations = array(); |
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/** |
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* @var bool|string the field that has the data which server we are using at the moment |
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*/ |
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public $dynamic_server = NULL; |
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/** |
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* @var array specifications for all of the thumbnails that should be automatically generated when a new image is uploaded |
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*/ |
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public $thumbnails = array(); |
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public function get(Jam_Validated $model, $upload_file, $is_changed) |
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{ |
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if ( ! ($upload_file instanceof Upload_File)) |
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{ |
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$upload_file = $this->upload_file($model); |
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} |
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return $upload_file |
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->server($this->dynamic_server ? $model->{$this->dynamic_server} : $this->server) |
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->path($this->path($model)); |
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} |
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public function set(Jam_Validated $model, $value, $is_changed) |
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{ |
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if ( ! $is_changed) |
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return $this->upload_file($model)->filename($value); |
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if ($value instanceof Upload_File) |
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{ |
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$upload_file = $value; |
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} |
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else |
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{ |
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$upload_file = $model->{$this->name}; |
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if ($value === NULL) |
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{ |
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$upload_file->filename(''); |
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} |
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elseif ($value) |
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{ |
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if (Upload_Source::valid($value)) |
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{ |
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$upload_file->source($value); |
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} |
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$upload_file->filename($value); |
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} |
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} |
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return $upload_file->path($this->path($model)); |
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} |
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/** |
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* Move the file to the temp directory even before it validates, so validaitons can be properly performed |
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* @param Jam_Model $model |
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*/ |
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public function model_before_check(Jam_Model $model) |
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{ |
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if ($model->changed($this->name) AND $upload_file = $model->{$this->name} AND $upload_file->source()) |
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{ |
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try { |
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$upload_file->save_to_temp(); |
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} catch (Kohana_Exception $e) { |
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$model->errors()->add($this->name, 'uploaded_native', array(':message' => $e->getMessage())); |
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} |
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} |
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} |
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/** |
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* After the validation for this field passes without any errors, fire up transformations and thumbnail generation |
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* @param Jam_Model $model |
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*/ |
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public function model_after_check(Jam_Model $model) |
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{ |
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if ($model->changed($this->name) AND ! $model->errors($this->name) AND $upload_file = $model->{$this->name} AND $upload_file->source()) |
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{ |
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$upload_file->transform(); |
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} |
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} |
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/** |
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* Cleanup temporary file directories when the files are successfully saved |
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* @param Jam_Model $model |
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* @param boolean $is_changed |
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*/ |
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public function model_after_save(Jam_Model $model) |
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{ |
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if ($model->changed($this->name) AND $upload_file = $model->{$this->name} AND $upload_file->source()) |
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{ |
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$upload_file |
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->server($this->dynamic_server ? $model->{$this->dynamic_server} : $this->server) |
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->path($this->path($model)); |
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// Delete the old file if there was one |
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if ($this->delete_file AND $original = $model->original($this->name)) |
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{ |
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$this->upload_file($model)->filename($original)->delete(); |
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} |
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$upload_file->save(); |
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} |
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if ($model->changed($this->name) AND $upload_file = $model->{$this->name}) |
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{ |
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$upload_file->clear(); |
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} |
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} |
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/** |
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* Get the filename to store in the database |
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* @param Jam_Model $model |
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* @param Upload_File $upload_file |
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* @param boolean $is_loaded |
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*/ |
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public function convert(Jam_Validated $model, $upload_file, $is_loaded) |
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{ |
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return ($upload_file AND $upload_file !== $this->default) ? $upload_file->filename() : $upload_file; |
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} |
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/** |
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* Remove files on model deletion |
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* |
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* @param Jam_Model $model |
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* @param boolean $is_changed |
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*/ |
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public function model_after_delete(Jam_Validated $model, Jam_Event_Data $data, $delete_finishd) |
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{ |
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if ($this->delete_file AND $delete_finishd AND $upload_file = $model->{$this->name}) |
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{ |
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$upload_file->delete(); |
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} |
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} |
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/** |
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* Get upload file object for a given model |
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* |
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* @param Jam_Model $model |
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* @return Upload_File |
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*/ |
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public function upload_file(Jam_Model $model) |
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{ |
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$upload_file = new Upload_File($this->server, $this->path($model)); |
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if ($this->transformations) |
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{ |
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$upload_file->transformations($this->transformations); |
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} |
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if ($this->thumbnails) |
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{ |
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$upload_file->thumbnails($this->thumbnails); |
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} |
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return $upload_file; |
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} |
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/** |
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* Get the localized path for a given model, so that there are less filename conflicts and files are easily located, |
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* for example the default path is model/id so that Model_Image(1) images will be stored as images/1/file.jpg |
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* |
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* @param Jam_Model $model the model for the context |
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* @return string |
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*/ |
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protected function path(Jam_Model $model) |
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{ |
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$converted_params = array(); |
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preg_match_all('#\:[a-zA-z]*#', $this->path, $params); |
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foreach ($params[0] as $param) |
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{ |
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switch ($param) { |
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case ':column': |
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$converted_params[$param] = $this->column; |
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break; |
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case ':model': |
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$converted_params[$param] = $this->model; |
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break; |
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case ':name': |
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$converted_params[$param] = $this->name; |
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break; |
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case ':id': |
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$converted_params[$param] = ($model->loaded()) ? $model->id() : 'new'; |
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break; |
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case ':id_group': |
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$converted_params[$param] = ($model->loaded()) ? ceil($model->id() / 10000) : 'new'; |
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break; |
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default: |
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$converted_params[$param] = $model->{str_replace(':','', $param)}; |
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} |
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} |
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return rtrim(strtr($this->path, $converted_params), '/').'/'; |
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} |
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} // End Jam_Core_Field_File |
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This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.