added completness check

includes/activity/class-base-object.php

@@ -33,6 +33,13 @@ class Base_Object {
 	 */
 	protected $_skip_next;
 
+	/**
+	 * if this is set, the language maps will be set automatically with this language if not set yet todo nicer description
+	 *
+	 * @var string
+	 */
+	protected $_default_language_code_for_language_maps;
+
 	/**
 	 * The object's unique global identifier
 	 *
@@ -534,11 +541,51 @@ class Base_Object {
 			return $this;
 		}
 
+		if ( 'content' === $key || 'summary' === $key || 'name' === $key ) { // todo nicer?
+			$this->set_basic_language_map( $key, $value ); // todo skip setter if language map is already set
+		}
+
 		$this->$key = $value;
 
 		return $this;
 	}
 
+	/**
+	 * Setter for the languageMap default language
+	 *
+	 * @param string $languagecode languageocde for default
+	 *
+	 */
+	public function set_default_language_for_maps( $languagecode ) {
+		$this->_default_language_code_for_language_maps = $languagecode;
+		return $this;
+	}
+
+	/**
+	 * Generic languageMap setter.
+	 *
+	 * @param string $key   The key for the language map.
+	 * @param string $value The value to set.
+	 *
+	 */
+	public function set_basic_language_map( $key, $value ) {
+		// todo better name, implement usage for content, summary and name
+		$mapkey = $key . '_map';
+
+		if ( ! isset( $this->_default_language_code_for_language_maps ) ) {
+			return new WP_Error( '_default_language_code_for_language_maps must be set before calling set_languageMap', __( '_default_language_code_for_language_maps must be set before calling set_languageMap', 'activitypub' ), array( 'status' => 404 ) );
+		}
+		if ( ! $this->has( $mapkey ) ) {
+			return new WP_Error( 'invalid_key', __( 'Invalid key', 'activitypub' ), array( 'status' => 404 ) );
+		}
+
+		$this->$mapkey = array(
+			$this->_default_language_code_for_language_maps => $value,
+		);
+
+		return $this;
+	}
+
 	/**
 	 * Generic adder.
 	 *
@@ -688,10 +735,48 @@ class Base_Object {
 		return \wp_json_encode( $array, \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_QUOT );
 	}
 
-	public function if( bool $b ) {
+	/**
+	 * skips next setter if( false );
+	 *
+	 * @param bool $b
+	 *
+	 */
+	public function if( $b ) {
 		$this->_skip_next = ! $b;
 		return $this;
 	}
 
+	public function check_jsonld_completeness() {
+		// Just a debugging helper function
+		$vars = get_object_vars( $this );
+		$total_var_count = count( $vars );
 
+		$unset_var_array = array();
+
+		foreach ( $vars as $key => $value ) {
+			// ignore all _prefixed keys.
+			if ( '_' === substr( $key, 0, 1 ) ) {
+				--$total_var_count;
+				continue;
+			}
+
+			// if value is empty, try to get it from a getter.
+			if ( ! $value ) {
+				$value = call_user_func( array( $this, 'get_' . $key ) );
+			}
+
+			// if value is still empty, ignore it for the array and continue.
+			if ( ! isset( $value ) ) {
+				$unset_var_array[] = $key;
+			}
+		}
+		$unset_var_count = count( $unset_var_array );
+
+		return array(
+			'total_var_count' => $total_var_count,
+			'unset_var_count' => $unset_var_count,
+			'set_var_count' => $total_var_count - $unset_var_count,
+			'unset_vars' => $unset_var_array,
+		);
+	}
 }

includes/transformer/class-base.php

@@ -78,20 +78,39 @@ abstract class Base { // todo renmae to Base_tranformer
 	/**
 	 * Retrieves a post meta field for the configured post.
 	 *
-	 * @param string $key     Optional. The meta key to retrieve. By default,
-	 *                        returns data for all keys. Default empty.
-	 * @param bool   $single  Optional. Whether to return a single value.
-	 *                        This parameter has no effect if `$key` is not specified.
-	 *                        Default false.
+	 * @param string $key     The meta key to retrieve. By default,
+	 *                        returns data for all keys.
+	 * @param bool $single Optional. Whether to return a single value.
+	 *                         This parameter has no effect if `$key` is not specified.
+	 *                         Default false.
+	 * @param mixed $default_value Optional. if the key doesn't exists, it returns the default value.
+	 *                         Default null.
 	 * @return mixed An array of values if `$single` is false.
 	 *               The value of the meta field if `$single` is true.
 	 *               False for an invalid `$post_id` (non-numeric, zero, or negative value).
 	 *               An empty string if a valid but non-existing post ID is passed.
 	 */
-	public function get_post_meta( string $key = '', $single = false, $default = null ) {
-		// todo test what if not present
-		// empty string or empty array, then return default
-		return \get_post_meta( $this->wp_post->ID, $key, $single );
+	public function get_post_meta( $key, $single = false, $default_value = null ) {
+		if ( \metadata_exists( 'post', $this->wp_post->ID, $key ) ) {
+			return \get_post_meta( $this->wp_post->ID, $key, $single );
+		}
+		return $default_value;
+	}
+
+	/**
+	 * Retrieves a post property field for the configured post.
+	 *
+	 * @param string $key     The property key to retrieve. By default,
+	 *                        returns data for all keys.
+	 * @param mixed $default_value Optional. if the key doesn't exists, it returns the default value.
+	 *                         Default null.
+	 * @return mixed The value of the property.
+	 */
+	public function get_post_property( $key, $default_value = null ) {
+		if ( isset( $this->wp_post->$key ) ) {
+			return $this->wp_post->$key;
+		}
+		return $default_value;
 	}
 
 	/**
@@ -102,6 +121,9 @@ abstract class Base { // todo renmae to Base_tranformer
 	 */
 	public function get_post_meta_time( string $key ) {
 		$time = $this->get_post_meta( $key, true ); // todo what if not exists
+		if ( null === $time ) {
+			return null;
+		}
 		$time = \strtotime( $time );
 		return \gmdate( $this->timeformat, $time );
 	}