services层属于Model层之下(niucloud-admin框架没有DAO层),是最接近控制器层的。所有的业务逻辑都可以写在services层中。
protected $model;
protected $request;
获取当前分页页码和展示条数,会根据系统配置返回不大于配置的展示条数
public function getPageParam()
获取分页列表
public function getPageList(Model $model, array $where, string $field = '*', string $order = '', array $append = [], $with = null, $each = null){
分页数据查询,传入model(查询后结果)
public function pageQuery($model, $each = null)
分页视图列表查询
public function getPageViewList(Model $model, array $where, string $field = '*', string $order = '', array $append = [], $with = null, $each = null)
BaseCoreService、 BaseAdminService、 BaseApiService
这几个类的文件都定义在 niucloud\core\base 文件夹中。
BaseCoreService是所有内核服务类的基类,对于可能在多个端口都会调用的service类,一般继承自他。
BaseAdminService是Admin管理端的Service的基类,该类实现了站点端(商家端、租户端)的site_id 的变量的赋值和取值,当前登录的用户名和uid字段。
class BaseAdminService extends BaseService
{
protected $site_id;
protected $username;
protected $uid;
protected $app_type;
public function __construct()
{
parent::__construct();
$this->app_type = $this->request->appType();
$this->site_id = $this->request->siteId();
$this->username = $this->request->username();
$this->uid = $this->request->uid();
}
}
BaseApiService是前端API(web、uni-app)的Service的基类,该类实现了site_id 的变量的取值,当前登录的会员ID(member_id)和登录方式的字段取值。
class BaseApiService extends BaseService
{
protected $site_id;
protected $member_id;
protected $channel;
public function __construct()
{
parent::__construct();
$this->site_id = $this->request->siteId();
$this->member_id = $this->request->memberId();
$this->channel = $this->request->getChannel();
}
}