Yii 2.0實現聯表查詢加搜索分頁的方法示例
阿新 • • 發佈:2017-10-12
查詢
前言 最近在學習yii2.0,在使用yii2.0過程中遇到一些問題,現將查詢搜索分頁的方法整理如下,分享出來供大家參考學習,話不多說,來一起看看詳細的介紹: 主表:{{%article}} 關聯表:{{%article_class}} 方法如下 1、使用gii創建CRUD和search不詳述 2、在Article中添加的關聯內容,代碼#註釋部分 class Article extends \yii\db\ActiveRecord { #關聯查詢1:這裏加上被關聯字段 public $class_name; ... public function rules() { return [ [[‘article_title‘,‘article_content‘], ‘required‘], [[‘article_content‘,‘article_title‘,‘article_class‘], ‘string‘], [[‘article_addtime‘, ‘article_updatetime‘], ‘integer‘], [[‘article_title‘, ‘article_author‘], ‘string‘, ‘max‘ => 50], #關聯查詢2:這裏加上safe驗證,表示該表單字段無驗證規則 [‘class_name‘,‘safe‘], ]; } ... #關聯查詢3:獲取被關聯表 mysite_article_class public function getArticleClass(){ /** * 第一個參數為要關聯的子表模型類名稱, * 第二個參數指定通過子表的 id 去關聯主表的 article_class 字段 */ return $this->hasMany(ArticleClass::className(), [‘id‘ => ‘article_class‘]); } ... } 3、在ArticleSearch中添加的查詢和關聯內容,代碼#註釋部分 class ArticleSearch extends Article { #關聯查詢1:這裏加上被關聯字段 public $class_name; ... public function rules() { return [ [[‘id‘, ‘article_addtime‘, ‘article_updatetime‘], ‘integer‘], [[‘article_title‘, ‘article_content‘, ‘article_class‘, ‘article_author‘], ‘safe‘], #關聯查詢2:這裏加上safe驗證,表示該表單字段無驗證規則 [‘class_name‘,‘safe‘], ]; } ... public function search($params) { $query = Article::find(); // add conditions that should always apply here #關聯查詢4:使用jionWith和select做關聯查詢 $query = Article::find(); $query->joinWith([‘articleClass‘]); $query->select("{{%article}}.*,{{%article_class}}.class_name"); $dataProvider = new ActiveDataProvider([ ‘query‘ => $query, ]); $this->load($params); if (!$this->validate()) { return $dataProvider; } // grid filtering conditions #精確查詢 $query->andFilterWhere([ ‘id‘ => $this->id, ‘article_addtime‘ => $this->article_addtime, ‘article_updatetime‘ => $this->article_updatetime, #關聯查詢5:添加被關聯字段的精確查詢,這裏要跟view表單被查詢屬性一致, // ‘{{%article_class}}.class_name‘ => $this->class_name, ]); #模糊查詢 $query->andFilterWhere([‘like‘, ‘article_title‘, $this->article_title]) ->andFilterWhere([‘like‘, ‘article_content‘, $this->article_content]) ->andFilterWhere([‘like‘, ‘article_class‘, $this->article_class]) ->andFilterWhere([‘like‘, ‘article_author‘, $this->article_author]) #關聯查詢5:添加被關聯字段的精確查詢,這裏要跟view表單被查詢屬性一致, ->andFilterWhere([‘like‘, ‘{{%article_class}}.class_name‘, $this->class_name]); return $dataProvider; } ... } |
Yii 2.0實現聯表查詢加搜索分頁的方法示例