core/db_models/relations/EE_Model_Relation_Base.php 1 location
                
                
                    
                                                
                                                    
                                |  | @@ 294-296 (lines=3) @@ | 
                                                            
                                    | 291 |  |         if ($model_object_or_id instanceof EE_Base_Class) { | 
                                                            
                                    | 292 |  |             $model_object_id = $model_object_or_id->ID(); | 
                                                            
                                    | 293 |  |         } | 
                                                            
                                    | 294 |  |         if (! $model_object_id) { | 
                                                            
                                    | 295 |  |             throw new EE_Error(sprintf(__("Sorry, we cant get the related %s model objects to %s model object before it has an ID. You can solve that by just saving it before trying to get its related model objects", | 
                                                            
                                    | 296 |  |                 "event_espresso"), $this->get_other_model()->get_this_model_name(), | 
                                                            
                                    | 297 |  |                 $this->get_this_model()->get_this_model_name())); | 
                                                            
                                    | 298 |  |         } | 
                                                            
                                    | 299 |  |         return $model_object_id; | 
                                                                        
                 
                                                            
                    
core/libraries/rest_api/controllers/model/Read.php 1 location
                
                
                    
                                                
                                                    
                                |  | @@ 513-520 (lines=8) @@ | 
                                                            
                                    | 510 |  |      */ | 
                                                            
                                    | 511 |  |     public function getEntitiesFromRelation($id, $relation, $request) | 
                                                            
                                    | 512 |  |     { | 
                                                            
                                    | 513 |  |         if (! $relation->get_this_model()->has_primary_key_field()) { | 
                                                            
                                    | 514 |  |             throw new EE_Error( | 
                                                            
                                    | 515 |  |                 sprintf( | 
                                                            
                                    | 516 |  |                     __( | 
                                                            
                                    | 517 |  |                         // @codingStandardsIgnoreStart | 
                                                            
                                    | 518 |  |                         'Read::get_entities_from_relation should only be called from a model with a primary key, it was called from %1$s', | 
                                                            
                                    | 519 |  |                         // @codingStandardsIgnoreEnd | 
                                                            
                                    | 520 |  |                         'event_espresso' | 
                                                            
                                    | 521 |  |                     ), | 
                                                            
                                    | 522 |  |                     $relation->get_this_model()->get_this_model_name() | 
                                                            
                                    | 523 |  |                 ) |