如何在视图中显示HABTM关系的结果?

时间:2010-09-08 13:03:26

标签: cakephp has-and-belongs-to-many

我在books表和authors表之间有一个HABTM关系,并与authors_books表连接。 但是,我找不到在我的视图中显示字段firstname,lastname和fullname的解决方案。

书模型:

class Book extends AppModel {
var $name = 'Book';
var $hasAndBelongsToMany = array(
    'Author' => array(
        'className' => 'Author',
        'joinTable' => 'authors_books',
        'foreignkey' => 'book_id',
        'associatioanForeignKey' => 'author_id'
    )
);

作者模型:

class Author extends AppModel {
var $name = 'Author';
var $virtualFields = array(
    'fullname' => "CONCAT(firstname,' ',lastname)"
);
var $fullname = 'fullname';
var $hasAndBelongsToMany = array(
    'Book' => array(
        'className' => 'Book',
        'joinTable' => 'authors_books',
        'foreignkey' => 'author_id',
        'associatioanForeignKey' => 'book_id'
    )
);

books_controller:

   function view($id) {
    $this->Book->id = $id;
    $this->set('book', $this->Book->read());
}
我的wiev.ctp中的

debug($ book)给出了以下结果:

Array
    (
[Book] => Array
    (
        [id] => 8
        [title] => A Forest of Kings: The Untold Story of the Ancient Maya
    )

[Author] => Array
    (
        [0] => Array
            (
                [id] => 6
                [firstname] => Linda
                [lastname] => Schele
                [fullname] => Linda Schele
            )

        [1] => Array
            (
                [id] => 7
                [firstname] => David
                [lastname] => Freidel
                [fullname] => David Freidel
            )

    )

我相信数组中的[0] [1]索引是问题所在。 我已经搜索了这个问题,发现了一些关于这个问题的文章,但是无法让任何解决方案起作用。

非常感谢任何帮助。我正在使用cakephp 1.3.3

由于

1 个答案:

答案 0 :(得分:3)

您通常会遍历Author数组,因为您可以拥有不同数量的作者。

<ul>
    <?php foreach($book['Author'] as $author){ ?>
        <li><?php print($author['fullname']); ?></li>
    <?php } ?>
</ul>