\u958b\u767capplication\u5e38\u5e38\u8981\u5c0d\u8cc7\u6599\u5eab\u505a\u5404\u7a2e\u4e0d\u540c\u689d\u4ef6\u7684\u67e5\u8a62\u3002<\/p>\n
\u9019\u985e\u7684\u67e5\u8a62code\u5f88\u5bb9\u6613\u5230\u8655\u91cd\u8907\u3002<\/p>\n
\u4ee5 Laravel Eloquent\u4f86\u8aaa\uff0ccontroller\u5f88\u5bb9\u6613\u51fa\u73fe\u9019\u6a23\u7684code\uff1a<\/p>\n
\r\n$users = User::where('votes', '>', 100)\r\n ->whereGender('W')\r\n ->orderBy('created_at')\r\n ->get();\r\n<\/pre>\n\u9019\u6bb5\u300c\u53d6\u51fa\u53d7\u6b61\u8fce\u7684\u5973\u6027\u4f7f\u7528\u8005\u300d\u7684code\uff0c\u5728\u4e2d\u5c0f\u578bapplication\u9084\u53ef\u4ee5\u63a5\u53d7\uff0c<\/p>\n
\u4e00\u65e6\u898f\u6a21\u7a0d\u5927\u5c31\u6703\u5728\u4e0d\u540ccontroller\u5230\u8655\u91cd\u8907\uff08duplicate\uff09\u3002<\/p>\n
\u5229\u7528\u5167\u5efa\u7684query scope\u529f\u80fd\uff0c\u96d6\u7136\u80fd\u5920\u7a0d\u5fae\u6539\u5584\uff0c\u4f46\u9084\u662f\u4e0d\u5920\uff1a<\/p>\n
\r\n$users = User::popular()->women()->orderBy('created_at')->get();\r\n<\/pre>\n\u4e0d\u53ea\u5982\u6b64\uff0c\u9084\u6703\u8b93model\u88e1\u9762\u591a\u51fa\u5b9a\u7fa9query scope\u7684\u7a0b\u5f0f\u78bc\uff0c\u5c0e\u81f4model\u8b8a\u80d6\uff1a<\/p>\n
\r\nclass User extends Eloquent {\r\n\r\n public function scopePopular($query)\r\n {\r\n return $query->where('votes', '>', 100);\r\n }\r\n\r\n public function scopeWomen($query)\r\n {\r\n return $query->whereGender('W');\r\n }\r\n\r\n}\r\n<\/pre>\n\u9019\u7a2e\u6642\u5019\uff0c\u9069\u5408\u5beb\u4e00\u500bRepository\u9032\u884c\u5c01\u88dd\uff1a<\/p>\n
\r\nclass UserRepository\r\n{\r\n public function getPopularWomen()\r\n {\r\n return User::where('votes', '>', 100)->whereGender('W')->orderBy('created_at')->get();\r\n }\r\n}\r\n<\/pre>\n\u5b83\u6703\u8b93controller\u5167\u7684code\u7c21\u6f54\u3001\u53ef\u8b80\u8a31\u591a\uff1a<\/p>\n
\r\n$repository = new UserRepository();\r\n\r\n$users = $repository->getPopularWomen();\r\n<\/pre>\n\u5982\u679c\u60a8\u662f Laravel \u4f7f\u7528\u8005\uff0c\u9019\u7a2e\u642d\u914dAutomatic Resolution\u7684\u5beb\u6cd5\u4e00\u5b9a\u7d93\u5e38\u770b\u5230\uff1a<\/p>\n
\r\nclass UserController extends BaseController\r\n{\r\n protected $users;\r\n \r\n public function __construct(UserRepository $repository)\r\n {\r\n parent::__construct();\r\n \r\n $this->users = $repository;\r\n }\r\n \r\n public function getIndex()\r\n {\r\n $women = $this->users->getPopularWomen();\r\n }\r\n}\r\n<\/pre>\n\u751a\u81f3\u53ef\u4ee5\u5beb\u4e00\u500b\u5171\u7528\u7684abstract class\u6e1b\u5c11duplicate code\uff1a<\/p>\n
\r\nmodel = $model;\r\n }\r\n \r\n public function getById($id)\r\n {\r\n return $this->model->find($id);\r\n }\r\n \r\n public function getAll()\r\n {\r\n return $this->model->all();\r\n }\r\n\r\n public function save($data)\r\n {\r\n if ($data instanceOf Model) {\r\n return $this->storeEloquentModel($data);\r\n }\r\n }\r\n \r\n public function saveMany($collection)\r\n {\r\n foreach($collection as $model)\r\n {\r\n $this->storeEloquentModel($model);\r\n }\r\n }\r\n\r\n public function delete($model)\r\n {\r\n return $model->delete();\r\n }\r\n\r\n protected function storeEloquentModel($model)\r\n { \r\n if ($model->getDirty()) {\r\n return $model->save();\r\n } else {\r\n return $model->touch();\r\n }\r\n }\r\n\r\n}\r\n\r\n<\/pre>\n\u900f\u904eRepository\u5c01\u88dd\u9084\u6709\u4e00\u500b\u597d\u8655\uff1a<\/p>\n
\u6e2c\u8a66controller\u6216\u662fservice\u7684\u6642\u5019\u53ef\u4ee5\u62bd\u63db\u6389Repository\uff0c\u8b93\u6e2c\u8a66\u6642\u4e0d\u7528\u78b0\u5230\u8cc7\u6599\u5eab\uff01<\/p>\n
\u4e0b\u6b21\u4f60\u7684application\u5305\u542b\u5927\u91cfquery logic\u6642\uff0c\u4e0d\u59a8\u8a66\u8a66\u770b\u9019\u500b\u4f5c\u6cd5\u3002<\/p>\n
(Photo via Susanne Nilsson<\/a>, CC licensed)<\/p>\n","protected":false},"excerpt":{"rendered":"\u958b\u767capplication\u5e38\u5e38\u8981\u5c0d\u8cc7\u6599\u5eab\u505a\u5404\u7a2e\u4e0d\u540c\u689d\u4ef6\u7684\u67e5\u8a62\u3002 \u9019\u985e\u7684\u67e5\u8a62code\u5f88\u5bb9\u6613\u5230\u8655\u91cd\u8907\u3002 \u4ee5 Lar … \u7e7c\u7e8c\u95b1\u8b80 \u80d6\u80d6 Model \u7684\u6e1b\u91cd\u65b9\u6cd5\uff1aRepository<\/span>