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我在舞者和舞者之间有 HABTM 关系。事情似乎按预期工作,除了在 edit.ctp 上编辑我的 Dances 时,CakePHP 显示的是一个下拉框,而不是我期望的多选框。对我来说疯狂的是,多选框与 edit.ctp 以另一种方式工作,用于编辑舞者!我不明白为什么它会以一种方式工作,但不能以另一种方式工作。

这是我定义舞蹈和舞者之间关系的舞蹈模型:

    public $belongsTo = array(
        'User' => array(
            'className' => 'User',
            'foreignKey' => 'user_id',
            'conditions' => '',
            'fields' => '',
            'order' => ''
        )
    );

/**
 * hasAndBelongsToMany associations
 *
 * @var array
 */
    public $hasAndBelongsToMany = array(
        'Dancer' => array(
            'className' => 'Dancer',
            'joinTable' => 'dancers_dances',
            'foreignKey' => 'dance_id',
            'associationForeignKey' => 'dancer_id',
            'unique' => 'keepExisting',
        )
    );

这是我的舞蹈控制器:

public function edit($id = null) {
    if (!$this->Dance->exists($id)) {
        throw new NotFoundException(__('Invalid dance'));
    }
    if ($this->request->is('post') || $this->request->is('put')) {
        if ($this->Dance->save($this->request->data)) {
            $this->Session->setFlash(__('The dance has been saved'));
            $this->redirect(array('action' => 'index'));
        } else {
            $this->Session->setFlash(__('The dance could not be saved. Please, try again.'));
        }
    } else {
        $options = array('conditions' => array('Dance.' . $this->Dance->primaryKey => $id));
        $this->request->data = $this->Dance->find('first', $options);
    }
    $users = $this->Dance->User->find('list');
    $dancers = $this->Dance->Dancer->find('list');
    $this->set(compact('users', 'dancers'));
}

这是我的舞蹈视图的 edit.ctp

<div class="dances form">
<?php echo $this->Form->create('Dance'); ?>
    <fieldset>
        <legend><?php echo __('Edit Dance'); ?></legend>
    <?php
        echo $this->Form->input('id');
        echo $this->Form->input('dance_name');
        echo $this->Form->input('users_id');
        echo $this->Form->input('Dancers');
    ?>
    </fieldset>
<?php echo $this->Form->end(__('Submit')); ?>
</div>
<div class="actions">
    <h3><?php echo __('Actions'); ?></h3>
    <ul>

        <li><?php echo $this->Form->postLink(__('Delete'), array('action' => 'delete', $this->Form->value('Dance.id')), null, __('Are you sure you want to delete # %s?', $this->Form->value('Dance.id'))); ?></li>
        <li><?php echo $this->Html->link(__('List Dances'), array('action' => 'index')); ?></li>
        <li><?php echo $this->Html->link(__('List Dancers'), array('controller' => 'dancers', 'action' => 'index')); ?> </li>
        <li><?php echo $this->Html->link(__('New Dancers'), array('controller' => 'dancers', 'action' => 'add')); ?> </li>
    </ul>
</div>

我认为相关的表格是:dancers, dancers_dances, dances

在 dancers_dances 表上,我有以下列: id, dancer_id, dance_id

让我知道更多信息是否会有所帮助。

提前致谢。

4

1 回答 1

4

首先,您可以摆脱 HABTM 定义中的大多数设置,因为您已经在使用 Cake Conventions;

public $hasAndBelongsToMany = array(
    'Dancer' => array(
        'unique' => 'keepExisting',
    )
);

但问题在于您在表单中输入的名称,它应该是单数的,并以其相关的模型命名;

echo $this->Form->input('Dancer');

您可以在此处查看手册中的一些示例(在本节中查找“标签”示例):

http://book.cakephp.org/2.0/en/models/saving-your-data.html#saving-related-model-data-habtm

于 2013-03-16T10:25:02.770 回答