| 1 |  |  | <?php | 
                            
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                | 2 |  |  | namespace GV; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | /** If this file is called directly, abort. */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | if ( ! defined( 'GRAVITYVIEW_DIR' ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | 	die(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * The default GravityView Field class. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * Houses all base Field functionality. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | class Field { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | 	 * @var array The custom View configuration for this field. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | 	 * Everything else is in the properties. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | 	private $configuration = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | 	 * @var string The field position in the view. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | 	public $position = ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | 	 * @var string UID for this field. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  | 	 * A unique relation identifier between this field and a view. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  | 	public $UID = ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  | 	 * @var string The form field ID for this field. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  | 	public $ID = ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  | 	 * @var string The form label for this field. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | 	public $label = ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  | 	 * @var string The custom label for this field. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  | 	public $custom_label = ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  | 	 * @var bool Whether to show the label or not for this field. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  | 	public $show_label = true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  | 	 * @var string The custom class for this field. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  | 	public $custom_class = ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  | 	 * @var string The capability required to view this field. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  | 	 * If empty, anyone can view it, including non-logged in users. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  | 	public $cap = ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  | 	 * @var bool Show as a link to entry. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  | 	public $show_as_link = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  | 	 * @var bool Filter this field from searching. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  | 	 * @api | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  | 	public $search_filter = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  | 	 * Return an array of the old format as used by callers of `GVCommon:get_directory_fields()` for example. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  | 	 *  		'id' => string '9' (length=1) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  | 	 *  		'label' => string 'Screenshots' (length=11) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  | 	 *			'show_label' => string '1' (length=1) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  | 	 *			'custom_label' => string '' (length=0) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  | 	 *			'custom_class' => string 'gv-gallery' (length=10) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  | 	 * 			'only_loggedin' => string '0' (length=1) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  | 	 *			'only_loggedin_cap' => string 'read' (length=4) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  | 	 *			'search_filter' => string '0' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  | 	 *			'show_as_link' => string '0' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  | 	 *			+ whatever else specific field types may have | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  | 	 * @internal | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  | 	 * @return array | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 120 |  |  | 	 */ | 
            
                                                                        
                            
            
                                    
            
            
                | 121 | 3 |  | 	public function as_configuration() { | 
            
                                                                        
                            
            
                                    
            
            
                | 122 | 3 |  | 		return array_merge( array( | 
            
                                                                        
                            
            
                                    
            
            
                | 123 | 3 |  | 			'id' => $this->ID, | 
            
                                                                        
                            
            
                                    
            
            
                | 124 | 3 |  | 			'label' => $this->label, | 
            
                                                                        
                            
            
                                    
            
            
                | 125 | 3 |  | 			'show_label' => $this->show_label ? '1' : '0', | 
            
                                                                        
                            
            
                                    
            
            
                | 126 | 3 |  | 			'custom_label' => $this->custom_label, | 
            
                                                                        
                            
            
                                    
            
            
                | 127 | 3 |  | 			'custom_class' => $this->custom_class, | 
            
                                                                        
                            
            
                                    
            
            
                | 128 | 3 |  | 			'only_loggedin' => $this->cap ? '1' : '0', | 
            
                                                                        
                            
            
                                    
            
            
                | 129 | 3 |  | 			'only_loggedin_cap' => $this->cap, | 
            
                                                                        
                            
            
                                    
            
            
                | 130 | 3 |  | 			'search_filter' => $this->search_filter ? '1' : '0', | 
            
                                                                        
                            
            
                                    
            
            
                | 131 | 3 |  | 			'show_as_link' => $this->show_as_link ? '1' : '0', | 
            
                                                                        
                            
            
                                    
            
            
                | 132 | 3 |  | 		), $this->configuration ); | 
            
                                                                        
                            
            
                                    
            
            
                | 133 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  | 	 * Update self from a configuration array. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  | 	 * @see \GV\Field::as_configuration() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  | 	 * @internal | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  | 	 * @since future | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  | 	 * @return void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 | 3 |  | 	public function from_configuration( $configuration ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 | 3 |  | 		$configuration = wp_parse_args( $configuration, $this->as_configuration() ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 | 3 |  | 		$this->ID = $configuration['id']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 | 3 |  | 		$this->label = $configuration['label']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 | 3 |  | 		$this->show_label = $configuration['show_label'] == '1'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 | 3 |  | 		$this->custom_label = $configuration['custom_label']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 | 3 |  | 		$this->custom_class = $configuration['custom_class']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 | 3 |  | 		$this->cap = $configuration['only_loggedin'] == '1' ? $configuration['only_loggedin_cap'] : ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 | 3 |  | 		$this->search_filter = $configuration['search_filter'] == '1'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 | 3 |  | 		$this->show_as_link = $configuration['show_as_link'] == '1'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  | 		/** Shared among all field types (sort of). */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  | 		$shared_configuration_keys = array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 | 3 |  | 			'id', 'label', 'show_label', 'custom_label', 'custom_class', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  | 			'only_loggedin' ,'only_loggedin_cap', 'search_filter', 'show_as_link', | 
                            
                    |  |  |  | 
                                                                                        
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                | 160 |  |  | 		); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  | 		/** Everything else goes into the properties for now. @todo subclasses! */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 | 3 |  | 		foreach ( $configuration as $key => $value ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 | 3 |  | 			if ( ! in_array( $key, $shared_configuration_keys ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 | 3 |  | 				$this->configuration[ $key ] = $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 | 3 |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  | 	 * Get one of the extra configuration keys via property accessors. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  | 	 * @param string $key The key to get. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  | 	 * @return mixed|null The value for the given configuration key, null if doesn't exist. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  | 	public function __get( $key ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  | 		if ( isset( $this->configuration[ $key ] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  | 			return $this->configuration[ $key ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 182 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 183 |  |  |  | 
            
                        
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.