Question

我在舞者和舞蹈之间有HABTM关系。事情似乎按预期工作，除了在编辑我的舞蹈的edit.ctp上，CakePHP显示一个下拉框而不是我期待的多选框。令我发疯的是，多选框正在使用edit.ctp以编辑舞者的方式工作！我无法弄清楚为什么它会以某种方式工作，而不是另一种方式。

这是我的舞蹈模型，定义了舞蹈与舞者之间的关系：

    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：舞者， dancers_dances，舞蹈

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

如果有更多信息可以提供帮助，请告诉我。

提前致谢。

Answer 1

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

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

但问题出在表单内部输入的名称中，该名称应为单数，并以与其相关的模型命名;

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

您可以在此处查看手册中的一些示例（查找本节中的“标记”示例）：

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

Cakephp 2.3.1 HABTM编辑表单显示下拉框而不是多选框

1 个答案: