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 \yii\db\ActiveRecord
{
#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;
}
...
} |