前言
最近在学习yii2.0,在使用yii2.0过程中遇到一些问题,现将查询搜索分页的方法整理如下,分享出来供大家参考学习,话不多说,来一起看看详细的介绍:
主表:{{%article}}
关联表:{{%article_class}}
方法如下
1、使用gii创建CRUD和search不详述
2、在Article中添加的关联内容,代码#注释部分
class Article extends yiidbActiveRecord { #关联查询1:这里加上被关联字段 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], #关联查询2:这里加上safe验证,表示该表单字段无验证规则 ["class_name","safe"], ]; } ... #关联查询3:获取被关联表 mysite_article_class public function getArticleClass(){ /** * 第一个参数为要关联的子表模型类名称, * 第二个参数指定通过子表的 id 去关联主表的 article_class 字段 */ return $this->hasMany(ArticleClass::className(), ["id" => "article_class"]); } ... }
3、在ArticleSearch中添加的查询和关联内容,代码#注释部分
class ArticleSearch extends Article { #关联查询1:这里加上被关联字段 public $class_name; ... public function rules() { return [ [["id", "article_addtime", "article_updatetime"], "integer"], [["article_title", "article_content", "article_class", "article_author"], "safe"], #关联查询2:这里加上safe验证,表示该表单字段无验证规则 ["class_name","safe"], ]; } ... public function search($params) { $query = Article::find(); // add conditions that should always apply here #关联查询4:使用jionWith和select做关联查询 $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 #精确查询 $query->andFilterWhere([ "id" => $this->id, "article_addtime" => $this->article_addtime, "article_updatetime" => $this->article_updatetime, #关联查询5:添加被关联字段的精确查询,这里要跟view表单被查询属性一致, // "{{%article_class}}.class_name" => $this->class_name, ]); #模糊查询 $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]) #关联查询5:添加被关联字段的精确查询,这里要跟view表单被查询属性一致, ->andFilterWhere(["like", "{{%article_class}}.class_name", $this->class_name]); return $dataProvider; } ... }
4、在ArticleController中添加的分页内容,代码#注释部分
public function actionIndex() { $article = new Article(); #查询 $searchModel = new ArticleSearch(); $dataProvider = $searchModel->search(Yii::$app->request->queryParams); #分页 $dataProvider->pagination = ["pagesize" => "3"]; return $this->render("index", [ "dataProvider" => $dataProvider, "model" => $article, "searchModel" => $searchModel, ]); }
5、在index view中添加的表单内容,代码#注释部分
<?= GridView::widget([ "dataProvider" => $dataProvider, #查询表单 "filterModel" => $searchModel, "columns" => [ [ "class" => "yiigridSerialColumn", "header" => "编号", ], // "article_class", #注意这里被关联表字段是{{%article_class}}.class_name,表单属性这么写"attribute" => "class_name", #查询结果就是被关联表字段值"value" => "class_name", [ "label"=>"文章分类", "attribute" => "class_name", "value" => "class_name", ], "article_title", "article_addtime:datetime", // "article_updatetime:datetime", // "article_author", [ "class" => "yiigridActionColumn", "header" => "操作", ], ], ]); ?>
以上步骤完成结果如图:
总结
以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作能带来一定的帮助,如果有疑问大家可以留言交流,谢谢大家对网页设计的支持。