jf-guillou / lcds

        if ($id !== null) {

            $field = Field::find()->where(['id' => $id])->one();

            if ($field === null) {

                return ['success' => false, 'message' => Yii::t('app', 'No such field')];

            }

        } else {

            $field = new Field();

        }

        Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;

        $field = Field::find()->where(['id' => $id])->with('contentTypes')->one();

        if ($field === null || $field->delete() === false) {

            return ['success' => false, 'message' => Yii::t('app', 'Deletion failed')];

        }

        return ['success' => true];

    }