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<?php |
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/** |
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* Define the Wordlift_Property_Service abstract class. |
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* |
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* @since 3.6.0 |
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*/ |
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/** |
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* Wordlift_Property_Service provides basic functions and declarations for |
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* properties that extend WL's schema. |
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* |
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* @since 3.6.0 |
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*/ |
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abstract class Wordlift_Property_Service { |
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// TODO: check that this is relative to the extending class. |
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protected static $instance; |
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public function __construct() { |
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static::$instance = $this; |
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} |
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/** |
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* Get the field singleton. |
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* |
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* @since 3.6.0 |
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* @return \Wordlift_Schema_Url_Property_Service The singleton instance. |
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*/ |
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public static function get_instance() { |
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return static::$instance; |
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} |
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/** |
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* Get the value for the specified post/entity. |
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* |
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* @since 3.6.0 |
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* |
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* @param int $post_id The post id. |
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* |
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* @return mixed |
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*/ |
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public abstract function get( $post_id ); |
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/** |
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* Sanitize the provided value. |
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* |
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* @since 3.6.0 |
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* |
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* @param mixed $value The value to sanitize. |
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* |
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* @return mixed|NULL The sanitized value or NULL avoid saving this value (see {@link WL_Metabox_Field}). |
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*/ |
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public abstract function sanitize( $value ); |
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/** |
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* The RDF predicate for the property. |
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* |
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* @since 3.6.0 |
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* @return string The RDF predicate. |
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*/ |
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public abstract function get_rdf_predicate(); |
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/** |
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* The RDF data type. |
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* |
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* @since 3.6.0 |
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* @return string The RDF data type. |
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*/ |
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public abstract function get_rdf_data_type(); |
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/** |
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* The internal data type. |
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* |
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* @since 3.6.0 |
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* @return string The internal data type. |
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*/ |
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public abstract function get_data_type(); |
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/** |
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* The cardinality. |
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* |
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* @since 3.6.0 |
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* @return mixed The cardinality. |
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*/ |
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public abstract function get_cardinality(); |
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/** |
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* The metabox field class name. |
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* |
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* @since 3.6.0 |
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* @return string The metabox field class name. |
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*/ |
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public abstract function get_metabox_class(); |
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/** |
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* The untranslated metabox field label. |
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* |
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* @since 3.6.0 |
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* @return string The untranslated metabox field label. |
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*/ |
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public abstract function get_metabox_label(); |
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/** |
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* The definition of the property returned as a compatible array. |
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* |
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* @deprecated |
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* @since 3.6.0 |
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* @return array An array of property definitions. |
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*/ |
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public function get_compat_definition() { |
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return array( |
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'type' => $this->get_data_type(), |
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'predicate' => $this->get_rdf_predicate(), |
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'export_type' => $this->get_rdf_data_type(), |
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'constraints' => array( |
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'cardinality' => $this->get_cardinality() |
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), |
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// Use the standard metabox for these URI (the URI metabox creates local entities). |
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'metabox' => array( |
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'class' => $this->get_metabox_class(), |
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'label' => $this->get_metabox_label() |
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), |
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'sanitize' => array( $this, 'sanitize' ) |
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); |
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} |
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} |
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