starting to develop all the features for collections moderators

src/classes/entities/class-tainacan-collection.php

@@ -192,6 +192,15 @@ class Collection extends Entity {
         return $this->get_mapped_property('default_view_mode');
     }
     
+    /**
+     * Get collection moderators ids
+     *
+     * @return array
+     */
+    function get_moderators_ids() {
+        return $this->get_mapped_property('moderators_ids');
+    }
+
     /**
      * Get collection DB identifier
      *
@@ -313,4 +322,27 @@ class Collection extends Entity {
         $this->set_mapped_property('default_view_mode', $value);
     }
     
+    /**
+     * Set collection moderators ids
+     *
+     * @param [string] $value
+     * @return void
+     */
+    function set_moderators_ids($value) {
+        $this->set_mapped_property('moderators_ids', $value);
+    }
+    
+    /**
+     * TODO implement the following methods to handle moderators_ids
+     *
+     * set_moderators
+     * get_moderators
+     * (the same as moderators_ids but gets and sets WP_User objects)
+     *
+     * add_moderator_id
+     * remove moderator_id
+     * (add or remove one moderator from the moderators_ids array)
+     * 
+     */
+
 }

src/classes/repositories/class-tainacan-collections.php

@@ -100,6 +100,13 @@ class Collections extends Repository {
              *
              * 
              */
+            'moderators_ids' =>  [
+                'map'         => 'meta_multi',
+                'title'       => __('Moderators', 'tainacan'),
+                'type'        => 'string',
+                'description' => __('The IDs of users assigned as moderators of this collection', 'tainacan'),
+                'validation'  => ''
+            ],
 
         ]);
     }

src/classes/repositories/class-tainacan-repository.php

@@ -19,6 +19,9 @@ abstract class Repository {
 		//add_action('admin_init', array(&$this, 'init_caps'));
 		add_action('init', array(&$this, 'init_capabilities'), 11);
 		add_filter('tainacan-get-map-'.$this->get_name(), array($this, 'get_default_properties'));
+        
+        
+		add_filter('map_meta_cap', array($this, 'map_meta_cap'), 10, 4);
 	}
 	
 	/**
@@ -532,6 +535,33 @@ abstract class Repository {
     	
     	return user_can($user, 'publish_post', $entity);
     }
+    
+    /**
+     * Filter to handle special permissions
+     *
+     * @see https://developer.wordpress.org/reference/hooks/map_meta_cap/
+     * 
+     */
+    public function map_meta_cap($caps, $cap, $user_id, $args) {
+        
+        // Filters meta caps edit_tainacan-collection and check if user is moderator
+        $collection_cpt = get_post_type_object(Entities\Collection::get_post_type());
+        if ($cap == $collection_cpt->cap->edit_post) {
+            $entity = new Entities\Collection($args[0]);
+            if ($entity) {
+                $moderators = $entity->get_moderators_ids();
+                if (in_array($user_id, $moderators)) {
+                    // if user is moderator, we clear the current caps
+                    // (that might fave edit_others_posts) and leave only edit_posts
+                    $caps = [$collection_cpt->cap->edit_posts]
+                }
+            }
+        }
+        
+        return $caps;
+        
+    }
+    
 }
 
 ?>