Yii2 AR留下的位置和关系

Question

图书加入

---------------------------- 
| id | name | published | 
---------------------------- 
| 1 | book1 |  1  | 
| 2 | book2 |  1  | 
| 3 | book3 |  0  | 

章

---------------------------- 
| id | book_id | name | published | 
---------------------------- 
| 1 | 1  | chapter1 |  1  | 
| 2 | 1  | chapter2 |  0  | 
| 2 | 2  | chapter1 |  0  | 
| 3 | 3  | chapter1 |  1  | 

class Book{ 
    public function getChapter() 
    { 
     return $this->hasMany(Chapter::className(), ['kook_id' => 'id']); 
    } } 

class Chapter{ 
    public function getBook() 
    { 
     return $this->hasOne(Book::className(), ['id' => 'book_id']); 
    } } 

我怎样才能获得出版与使用ActiveRecord发布的网页书（我想获得与第一章和Book BOOK1没有任何章节）？

水木清华像书::发现（$ ID） - >在哪里（[ '出版'=> 1） - > {{{左连接与在}}} - >所有（））

ADDED 然后我的魔杖使用它

echo $book->name; 
foreach($book->getChapter() as chapter){ 
    echo chapter->name; 
} 

Answer 1

更改Book类relation作为

class Book 
{ 
    public function getChapter() 
    { 
    return $this->hasMany(Chapter::className(), ['book_id' => 'id'])->where(['published' => 1]); 
    } 
} 

要获得相关记录使用with()

Book::find()->with(['chapter'])->where(['id' => $id ,'published' => 1])->all() 

使用它：

//Book Name 
    echo $book->name; 

    //For Chapters Name 
    if($book->chapter){ 
    foreach($book->chapter as $chapter){ 
    echo $chapter->name; 
    } 
}