PHP實(shí)戰(zhàn)
<?php 
namespace backend\controllers;
header("Content-type:text/html;charset=utf-8");
use Yii;
use yii\web\Controller; //超級(jí)控制器類
use backend\models\BooksInfo; //表Model類
use backend\models\InfoSearch; //引入搜索Model類
use yii\data\ActiveDataProvider; //小部件數(shù)據(jù)源類
use yii\grid\GridView; //查詢小部件
/**
 *@abstract BooksController
 *@author NING <[email ning@163.com]>
 *@version [version 1.0] [書籍管理]
 */
class BooksInfoController extends Controller
{
 
 //書籍列表
 public function actionIndex()
 {
 $searchModel = new InfoSearch(); //實(shí)例化searchModel[搜索Model]
 if(!empty($_GET['InfoSearch'])){
  $getSearch = Yii::$app->request->get(); //接收搜索字段
  $data = $searchModel->search($getSearch);
 }else{
  //小部件查詢數(shù)據(jù)
  $data = new ActiveDataProvider([
    'query' => BooksInfo::find(), //查詢數(shù)據(jù)
    'pagination' => [
      'pageSize' => 2, //每頁(yè)顯示條數(shù)
    ],
    'sort' => [
      'defaultOrder' => [
        // 'created_at' => SORT_DESC,
        'id' => SORT_ASC, //[字段]設(shè)置排序?
      ]
    ],
  ]);
 }
 //傳送查詢數(shù)據(jù)、搜素Model
 return $this->render('index',['data'=>$data,'searchModel'=>$searchModel]);
 }
?>

PHP實(shí)戰(zhàn)
<?php 
namespace backend\models;
use Yii;
use yii\db\ActiveRecord;
/**
 *@abstract [BookForm]
 *@author NING <[email ning@163.com]>
 *@version [vector 1.0] [書籍詳情模型]
 */
class BooksInfo extends ActiveRecord
{
 /**
   * @設(shè)置表名
   */
  public static function tableName()
  {
    return '{{%books_info}}';
  }
  //關(guān)聯(lián)表
  public function getBooksType(){
    // hasOne要求返回兩個(gè)參數(shù) 第一個(gè)參數(shù)是關(guān)聯(lián)表的類名 第二個(gè)參數(shù)是兩張表的關(guān)聯(lián)關(guān)系 
    // 這里id是books_type表的id, 關(guān)聯(lián)books_info表的type_id 
    return $this->hasOne(BooksType::className(), ['id' => 'type_id']);
  }
 public function attributeLabels()
 {
 return [
  'id' => 'ID',
  'book_name' => '書籍名稱',
  'book_face' => '書籍封面',
  'type_id' => '書籍分類ID',
  'type_name' => '書籍分類',
 ];
 }
}
?>

PHP實(shí)戰(zhàn)
<?php
namespace backend\models; //命名空間
use Yii;
use yii\base\Model; //引入基類Model
use yii\data\ActiveDataProvider;  //引入數(shù)據(jù)源類
/**
 *@abstract [搜索Model]
 *@return [type]
 *@author NING <[email ning@163.com]>
 */
// 注意:此處繼承的是查詢Model--->BooksInfo
class InfoSearch extends BooksInfo
{
  public $type_name; //定義屬性變量
  // 只有在 rules() 函數(shù)中聲明的字段才可以搜索
  public function rules()
  {
    return [
      // [['book_name','type_name'], 'safe'],
      [['type_name'], 'safe'],
    ];
  }
  public function scenarios()
  {
    // 旁路在父類中實(shí)現(xiàn)的 scenarios() 函數(shù)
    return Model::scenarios();
  }
  public function search($params)
  {
    $query = BooksInfo::find();
    $dataProvider = new ActiveDataProvider([
      'query' => $query,
      'pagination' => [
        'pageSize' => 1,
      ],
    ]);
    /*這里的articlecategory是article模型里面關(guān)聯(lián)的方法名,除了首字母,其他都要完全一樣,否則會(huì)報(bào)錯(cuò)*/
    $query->joinWith(['booksType']);
    // 從參數(shù)的數(shù)據(jù)中加載過濾條件,并驗(yàn)證
    if (!($this->load($params) && $this->validate())) {
      return $dataProvider;
    }
    // 增加過濾條件來調(diào)整查詢對(duì)象
    $query->andFilterWhere(['like', 'book_name', $this->book_name]);
    //添加關(guān)聯(lián)字段過濾條件[注意:此處books_type.type_name中books_type為分類表名]
    $query->andFilterWhere(['like', 'books_type.type_name', $this->type_name]);
    return $dataProvider;
  }
}
?>