search($where)->field($field)->select()->toArray(); } /** * 获取城市数据以数组形式返回 * @param array $where * @param string $field * @param string $key * @return array */ public function getCityArray(array $where, string $field, string $key) { return $this->search($where)->column($field, $key); } /** * 删除上级城市和当前城市id * @param int $cityId * @return bool * @throws \Exception */ public function deleteCity(int $cityId) { return $this->getModel()->where('city_id', $cityId)->whereOr('parent_id', $cityId)->delete(); } /** * 获取city_id的最大值 * @return mixed */ public function getCityIdMax() { return $this->getModel()->max('city_id'); } /** * 获取运费模板城市选择 * @return array * @throws \think\db\exception\DataNotFoundException * @throws \think\db\exception\DbException * @throws \think\db\exception\ModelNotFoundException */ public function getShippingCity() { return $this->getModel()->with('children')->where('parent_id', 0)->order('id asc')->select()->toArray(); } }