/** * Save fields for many-to-many relations in their pivot tables. * * @param F0FTable $table Current item table. * * @return bool True if the object can be saved successfully, false elsewhere. * @throws Exception The error message get trying to save fields into the pivot tables. */ public function onAfterStore(&$table) { // Retrieve the relations configured for this table $input = new F0FInput(); $key = $table->getConfigProviderKey() . '.relations'; $relations = $table->getConfigProvider()->get($key, array()); // Abandon the process if not a save task if (!in_array($input->getWord('task'), array('apply', 'save', 'savenew'))) { return true; } // For each relation check relative field foreach ($relations as $relation) { // Only if it is a multiple relation, sure! if ($relation['type'] == 'multiple') { // Retrive the fully qualified relation data from F0FTableRelations object $relation = array_merge(array('itemName' => $relation['itemName']), $table->getRelations()->getRelation($relation['itemName'], $relation['type'])); // Deduce the name of the field used in the form $field_name = F0FInflector::pluralize($relation['itemName']); // If field exists we catch its values! $field_values = $input->get($field_name, array(), 'array'); // If the field exists, build the correct pivot couple objects $new_couples = array(); foreach ($field_values as $value) { $new_couples[] = array($relation['ourPivotKey'] => $table->getId(), $relation['theirPivotKey'] => $value); } // Find existent relations in the pivot table $query = $table->getDbo()->getQuery(true)->select($relation['ourPivotKey'] . ', ' . $relation['theirPivotKey'])->from($relation['pivotTable'])->where($relation['ourPivotKey'] . ' = ' . $table->getId()); $existent_couples = $table->getDbo()->setQuery($query)->loadAssocList(); // Find new couples and create its foreach ($new_couples as $couple) { if (!in_array($couple, $existent_couples)) { $query = $table->getDbo()->getQuery(true)->insert($relation['pivotTable'])->columns($relation['ourPivotKey'] . ', ' . $relation['theirPivotKey'])->values($couple[$relation['ourPivotKey']] . ', ' . $couple[$relation['theirPivotKey']]); // Use database to create the new record if (!$table->getDbo()->setQuery($query)->execute()) { throw new Exception('Can\'t create the relation for the ' . $relation['pivotTable'] . ' table'); } } } // Now find the couples no more present, that will be deleted foreach ($existent_couples as $couple) { if (!in_array($couple, $new_couples)) { $query = $table->getDbo()->getQuery(true)->delete($relation['pivotTable'])->where($relation['ourPivotKey'] . ' = ' . $couple[$relation['ourPivotKey']])->where($relation['theirPivotKey'] . ' = ' . $couple[$relation['theirPivotKey']]); // Use database to create the new record if (!$table->getDbo()->setQuery($query)->execute()) { throw new Exception('Can\'t delete the relation for the ' . $relation['pivotTable'] . ' table'); } } } } } return true; }