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<?php |
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/** |
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* @file class-gravityview-field.php |
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* @package GravityView |
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* @subpackage includes\fields |
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*/ |
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/** |
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* Modify field settings by extending this class. |
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*/ |
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abstract class GravityView_Field { |
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/** |
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* The name of the GravityView field type |
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* Example: `created_by`, `text`, `fileupload`, `address`, `entry_link` |
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* @var string |
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*/ |
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public $name; |
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/** |
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* @internal Not yet implemented |
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* @since 1.15.2 |
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* @type string The description of the field in the field picker |
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*/ |
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public $description; |
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/** |
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* @since 1.15.2 |
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* @type string The label of the field in the field picker |
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*/ |
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public $label; |
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/** |
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* `standard`, `advanced`, `post`, `pricing`, `meta`, `gravityview` |
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* @internal Not yet implemented |
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* @since 1.15.2 |
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* @type string The group belongs to this field in the field picker |
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*/ |
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public $group; |
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/** |
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* @internal Not yet implemented |
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* @type boolean Can the field be searched? |
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* @since 1.15.2 |
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*/ |
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public $is_searchable; |
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/** |
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* @internal Not yet implemented |
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* @type array $search_operators The type of search operators available for this field |
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* @since 1.15.2 |
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*/ |
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public $search_operators; |
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/** |
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* @type boolean Can the field be sorted in search? |
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* @since 1.15.2 |
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*/ |
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public $is_sortable = true; |
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/** |
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* @type boolean Is field content number-based? |
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* @since 1.15.2 |
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*/ |
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public $is_numeric; |
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/** |
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* @internal Not yet implemented |
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* @todo implement supports_context() method |
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* The contexts in which a field is available. Some fields aren't editable, for example. |
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* - `singular` is an alias for both `single` and `edit` |
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* - `multiple` is an alias for `directory` (backward compatibility) |
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* @type array |
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* @since 1.15.2 |
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*/ |
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public $contexts = array( 'single', 'multiple', 'edit', 'export' ); |
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/** |
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* @internal Not yet implemented |
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* @since 1.15.2 |
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* @type string The name of a corresponding Gravity Forms GF_Field class, if exists |
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*/ |
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protected $_gf_field_class_name; |
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/** |
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* @var string The field ID being requested |
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* @since 1.14 |
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*/ |
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protected $_field_id = ''; |
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/** |
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* @var string Field options to be rendered |
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* @since 1.14 |
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*/ |
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protected $_field_options = array(); |
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/** |
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* @var bool|string Name of merge tag (without curly brackets), if the field has custom GravityView merge tags to add. Otherwise, false. |
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* @since 1.16 |
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*/ |
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protected $_custom_merge_tag = false; |
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function __construct() { |
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/** |
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* If this is a Gravity Forms field, use their labels. Spare our translation team! |
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*/ |
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if( ! empty( $this->_gf_field_class_name ) && class_exists( $this->_gf_field_class_name ) && empty( $this->label ) ) { |
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/** @var GF_Field $GF_Field */ |
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$GF_Field = new $this->_gf_field_class_name; |
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$this->label = $GF_Field->get_form_editor_field_title(); |
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$this->label = ucwords( $this->label ); |
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} |
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// Modify the field options based on the name of the field type |
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add_filter( sprintf( 'gravityview_template_%s_options', $this->name ), array( &$this, 'field_options' ), 10, 5 ); |
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add_filter( 'gravityview/sortable/field_blacklist', array( $this, '_filter_sortable_fields' ), 1 ); |
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if( $this->_custom_merge_tag ) { |
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add_filter( 'gform_custom_merge_tags', array( $this, '_filter_gform_custom_merge_tags' ), 10, 4 ); |
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add_filter( 'gform_replace_merge_tags', array( $this, '_filter_gform_replace_merge_tags' ), 10, 7 ); |
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} |
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GravityView_Fields::register( $this ); |
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} |
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/** |
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* Match the merge tag in replacement text for the field. DO NOT OVERRIDE. |
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* |
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* @see replace_merge_tag Override replace_merge_tag() to handle any matches |
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* |
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* @since 1.16 |
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* |
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* @param string $text Text to replace |
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* @param array $form Gravity Forms form array |
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* @param array $entry Entry array |
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* @param bool $url_encode Whether to URL-encode output |
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* |
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* @return string Original text if {_custom_merge_tag} isn't found. Otherwise, replaced text. |
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*/ |
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public function _filter_gform_replace_merge_tags( $text, $form = array(), $entry = array(), $url_encode = false, $esc_html = false ) { |
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/** |
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* This prevents the gform_replace_merge_tags filter from being called twice, as defined in: |
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* @see GFCommon::replace_variables() |
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* @see GFCommon::replace_variables_prepopulate() |
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* @todo Remove eventually: Gravity Forms fixed this issue in 1.9.14 |
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*/ |
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if( false === $form ) { |
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return $text; |
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} |
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// Is there is field merge tag? Strip whitespace off the ned, too. |
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preg_match_all( '/{' . preg_quote( $this->_custom_merge_tag ) . ':?(.*?)(?:\s)?}/ism', $text, $matches, PREG_SET_ORDER ); |
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// If there are no matches, return original text |
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if ( empty( $matches ) ) { |
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return $text; |
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} |
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return $this->replace_merge_tag( $matches, $text, $form, $entry, $url_encode, $esc_html ); |
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} |
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/** |
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* Run GravityView filters when using GFCommon::replace_variables() |
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* |
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* Instead of adding multiple hooks, add all hooks into this one method to improve speed |
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* |
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* @since 1.8.4 |
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* |
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* @param array $matches Array of Merge Tag matches found in text by preg_match_all |
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* @param string $text Text to replace |
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* @param array|bool $form Gravity Forms form array. When called inside {@see GFCommon::replace_variables()} (now deprecated), `false` |
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* @param array|bool $entry Entry array. When called inside {@see GFCommon::replace_variables()} (now deprecated), `false` |
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* @param bool $url_encode Whether to URL-encode output |
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* @param bool $esc_html Whether to apply `esc_html()` to output |
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* |
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* @return mixed |
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*/ |
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public function replace_merge_tag( $matches = array(), $text = '', $form = array(), $entry = array(), $url_encode = false, $esc_html = false ) { |
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foreach( $matches as $match ) { |
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$full_tag = $match[0]; |
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// Strip the Merge Tags |
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$tag = str_replace( array( '{', '}'), '', $full_tag ); |
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// Replace the value from the entry, if exists |
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if( isset( $entry[ $tag ] ) ) { |
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$value = $entry[ $tag ]; |
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if( is_callable( array( $this, 'get_content') ) ) { |
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$value = $this->get_content( $value ); |
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} |
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$text = str_replace( $full_tag, $value, $text ); |
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} |
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} |
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unset( $value, $tag, $full_tag ); |
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return $text; |
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} |
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/** |
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* Add custom merge tags to merge tag options. DO NOT OVERRIDE. |
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* |
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* @internal Not to be overridden by fields |
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* |
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* @since 1.8.4 |
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* |
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* @param array $existing_merge_tags |
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* @param int $form_id GF Form ID |
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* @param GF_Field[] $fields Array of fields in the form |
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* @param string $element_id The ID of the input that Merge Tags are being used on |
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* |
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* @return array Modified merge tags |
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*/ |
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public function _filter_gform_custom_merge_tags( $custom_merge_tags = array(), $form_id, $fields = array(), $element_id = '' ) { |
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$form = GVCommon::get_form( $form_id ); |
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$field_merge_tags = $this->custom_merge_tags( $form, $fields ); |
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return array_merge( $custom_merge_tags, $field_merge_tags ); |
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} |
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/** |
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* Add custom Merge Tags to Merge Tag options, if custom Merge Tags exist |
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* |
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* Should be overridden if there's more than one Merge Tag to add or if the Merge Tag isn't {_custom_merge_tag} |
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* |
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* @since 1.16 |
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* |
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* @param array $form GF Form array |
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* @param GF_Field[] $fields Array of fields in the form |
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* |
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* @return array Merge tag array with `label` and `tag` keys based on class `label` and `_custom_merge_tag` variables |
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*/ |
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protected function custom_merge_tags( $form = array(), $fields = array() ) { |
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// Use variables to make it unnecessary for other fields to override |
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$merge_tags = array( |
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array( |
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'label' => $this->label, |
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'tag' => '{' . $this->_custom_merge_tag . '}', |
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), |
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); |
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return $merge_tags; |
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} |
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/** |
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* Use field settings to modify whether a field is sortable |
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* |
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* @see GravityView_frontend::is_field_sortable |
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* @since 1.15.3 |
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* |
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* @param array $not_sortable Existing field types that aren't sortable |
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* |
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* @return array |
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*/ |
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public function _filter_sortable_fields( $not_sortable ) { |
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if( ! $this->is_sortable ) { |
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$not_sortable[] = $this->name; |
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} |
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return $not_sortable; |
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} |
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private function field_support_options() { |
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$options = array( |
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'link_to_post' => array( |
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'type' => 'checkbox', |
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'label' => __( 'Link to the post', 'gravityview' ), |
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'desc' => __( 'Link to the post created by the entry.', 'gravityview' ), |
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'value' => false, |
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), |
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'link_to_term' => array( |
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'type' => 'checkbox', |
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'label' => __( 'Link to the category or tag', 'gravityview' ), |
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'desc' => __( 'Link to the current category or tag. "Link to single entry" must be unchecked.', 'gravityview' ), |
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'value' => false, |
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), |
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'dynamic_data' => array( |
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'type' => 'checkbox', |
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'label' => __( 'Use the live post data', 'gravityview' ), |
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'desc' => __( 'Instead of using the entry data, instead use the current post data.', 'gravityview' ), |
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'value' => true, |
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), |
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'date_display' => array( |
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'type' => 'text', |
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'label' => __( 'Override Date Format', 'gravityview' ), |
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'desc' => sprintf( __( 'Define how the date is displayed (using %sthe PHP date format%s)', 'gravityview'), '<a href="https://codex.wordpress.org/Formatting_Date_and_Time">', '</a>' ), |
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/** |
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* @filter `gravityview_date_format` Override the date format with a [PHP date format](https://codex.wordpress.org/Formatting_Date_and_Time) |
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* @param[in,out] null|string $date_format Date Format (default: null) |
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*/ |
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'value' => apply_filters( 'gravityview_date_format', null ) |
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), |
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'new_window' => array( |
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'type' => 'checkbox', |
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'label' => __( 'Open link in a new tab or window?', 'gravityview' ), |
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'value' => false, |
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), |
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); |
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/** |
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* @filter `gravityview_field_support_options` Modify the settings that a field supports |
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* @param array $options Options multidimensional array with each key being the input name, with each array setting having `type`, `label`, `desc` and `value` (default values) keys |
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*/ |
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return apply_filters( 'gravityview_field_support_options', $options ); |
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} |
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function add_field_support( $key = '', &$field_options ) { |
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$options = $this->field_support_options(); |
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if( isset( $options[ $key ] ) ) { |
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$field_options[ $key ] = $options[ $key ]; |
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} |
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return $field_options; |
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} |
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/** |
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* Tap in here to modify field options. |
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* |
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* Here's an example: |
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* |
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* <pre> |
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* $field_options['name_display'] = array( |
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* 'type' => 'select', |
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* 'label' => __( 'User Format', 'gravityview' ), |
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* 'desc' => __( 'How should the User information be displayed?', 'gravityview'), |
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* 'choices' => array( |
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* array( |
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* 'value' => 'display_name', |
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* 'label' => __('Display Name (Example: "Ellen Ripley")', 'gravityview'), |
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* ), |
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* array( |
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* 'value' => 'user_login', |
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* 'label' => __('Username (Example: "nostromo")', 'gravityview') |
348
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|
|
* ), |
349
|
|
|
* 'value' => 'display_name' |
350
|
|
|
* ); |
351
|
|
|
* </pre> |
352
|
|
|
* |
353
|
|
|
* @param [type] $field_options [description] |
|
|
|
|
354
|
|
|
* @param [type] $template_id [description] |
|
|
|
|
355
|
|
|
* @param [type] $field_id [description] |
|
|
|
|
356
|
|
|
* @param [type] $context [description] |
|
|
|
|
357
|
|
|
* @param [type] $input_type [description] |
|
|
|
|
358
|
|
|
* @return [type] [description] |
|
|
|
|
359
|
|
|
*/ |
360
|
|
|
function field_options( $field_options, $template_id, $field_id, $context, $input_type ) { |
|
|
|
|
361
|
|
|
|
362
|
|
|
$this->_field_options = $field_options; |
363
|
|
|
$this->_field_id = $field_id; |
364
|
|
|
|
365
|
|
|
return $field_options; |
366
|
|
|
} |
367
|
|
|
|
368
|
|
|
} |
369
|
|
|
|
Adding explicit visibility (
private
,protected
, orpublic
) is generally recommend to communicate to other developers how, and from where this method is intended to be used.