我创建了一个国家，城市和客户表，我正在努力确保当我从下拉列表中添加新客户时，我可以选择一个国家/地区，然后选择与该国家/地区相关的城市。目前，我无法从下拉列表中选择任何城市和国家/地区组合。 这是我的数据库
CREATE TABLE IF NOT EXISTS `southpac_team`.`customers` (
`id` INT NOT NULL,
`name` VARCHAR(100) NULL,
`country_id` INT NULL,
`city_id` INT NULL,
`address` VARCHAR(255) NULL,
`postal_address` VARCHAR(255) NULL,
`phone` VARCHAR(45) NULL,
`email` VARCHAR(100) NULL,
`payment_terms_id` INT NULL,
`stop_credit` TINYINT(1) NULL,
`gst_percentage` INT NULL,
`currency` VARCHAR(45) NULL,
`account_closed` TINYINT(1) NULL,
`invoice_email` VARCHAR(100) NULL,
`customer_notes` VARCHAR(255) NULL,
PRIMARY KEY (`id`))
ENGINE = InnoDB;
CREATE TABLE IF NOT EXISTS `southpac_team`.`countries` (
`id` INT NOT NULL AUTO_INCREMENT,
`name` VARCHAR(100) NULL,
PRIMARY KEY (`id`))
ENGINE = InnoDB;
CREATE TABLE IF NOT EXISTS `southpac_team`.`cities` (
`id` INT NOT NULL AUTO_INCREMENT,
`country_id` INT NOT NULL,
`name` VARCHAR(100) NULL,
PRIMARY KEY (`id`))
ENGINE = InnoDB;
我使用Cake Bake来创建表之间的关系，这是我的客户控制器。
<?php
namespace App\Controller;
use App\Controller\AppController;
/**
* Customers Controller
*
* @property \App\Model\Table\CustomersTable $Customers
*/
class CustomersController extends AppController
{
/**
* Index method
*
* @return \Cake\Network\Response|null
*/
public function index()
{
$this->paginate = [
'contain' => ['Countries', 'Cities', 'PaymentTerms']
];
$customers = $this->paginate($this->Customers);
$this->set(compact('customers'));
$this->set('_serialize', ['customers']);
}
/**
* View method
*
* @param string|null $id Customer id.
* @return \Cake\Network\Response|null
* @throws \Cake\Datasource\Exception\RecordNotFoundException When record not found.
*/
public function view($id = null)
{
$customer = $this->Customers->get($id, [
'contain' => ['Countries', 'Cities', 'PaymentTerms']
]);
$this->set('customer', $customer);
$this->set('_serialize', ['customer']);
}
/**
* Add method
*
* @return \Cake\Network\Response|null Redirects on successful add, renders view otherwise.
*/
public function add()
{
$customer = $this->Customers->newEntity();
if ($this->request->is('post')) {
$customer = $this->Customers->patchEntity($customer, $this->request->data);
if ($this->Customers->save($customer)) {
$this->Flash->success(__('The customer has been saved.'));
return $this->redirect(['action' => 'index']);
}
$this->Flash->error(__('The customer could not be saved. Please, try again.'));
}
$countries = $this->Customers->Countries->find('list', ['limit' => 200]);
$cities = $this->Customers->Cities->find('list', ['limit' => 200]);
$paymentTerms = $this->Customers->PaymentTerms->find('list', ['limit' => 200]);
$this->set(compact('customer', 'countries', 'cities', 'paymentTerms'));
$this->set('_serialize', ['customer']);
}
/**
* Edit method
*
* @param string|null $id Customer id.
* @return \Cake\Network\Response|null Redirects on successful edit, renders view otherwise.
* @throws \Cake\Network\Exception\NotFoundException When record not found.
*/
public function edit($id = null)
{
$customer = $this->Customers->get($id, [
'contain' => []
]);
if ($this->request->is(['patch', 'post', 'put'])) {
$customer = $this->Customers->patchEntity($customer, $this->request->data);
if ($this->Customers->save($customer)) {
$this->Flash->success(__('The customer has been saved.'));
return $this->redirect(['action' => 'index']);
}
$this->Flash->error(__('The customer could not be saved. Please, try again.'));
}
$countries = $this->Customers->Countries->find('list', ['limit' => 200]);
$cities = $this->Customers->Cities->find('list', ['limit' => 200]);
$paymentTerms = $this->Customers->PaymentTerms->find('list', ['limit' => 200]);
$this->set(compact('customer', 'countries', 'cities', 'paymentTerms'));
$this->set('_serialize', ['customer']);
}
/**
* Delete method
*
* @param string|null $id Customer id.
* @return \Cake\Network\Response|null Redirects to index.
* @throws \Cake\Datasource\Exception\RecordNotFoundException When record not found.
*/
public function delete($id = null)
{
$this->request->allowMethod(['post', 'delete']);
$customer = $this->Customers->get($id);
if ($this->Customers->delete($customer)) {
$this->Flash->success(__('The customer has been deleted.'));
} else {
$this->Flash->error(__('The customer could not be deleted. Please, try again.'));
}
return $this->redirect(['action' => 'index']);
}
}
这是我的客户add.ctp
<?php
/**
* @var \App\View\AppView $this
*/
?>
<nav class="large-3 medium-4 columns" id="actions-sidebar">
<ul class="side-nav">
<li class="heading"><?= __('Actions') ?></li>
<li><?= $this->Html->link(__('List Customers'), ['action' => 'index']) ?></li>
<li><?= $this->Html->link(__('List Countries'), ['controller' => 'Countries', 'action' => 'index']) ?></li>
<li><?= $this->Html->link(__('New Country'), ['controller' => 'Countries', 'action' => 'add']) ?></li>
<li><?= $this->Html->link(__('List Cities'), ['controller' => 'Cities', 'action' => 'index']) ?></li>
<li><?= $this->Html->link(__('New City'), ['controller' => 'Cities', 'action' => 'add']) ?></li>
<li><?= $this->Html->link(__('List Payment Terms'), ['controller' => 'PaymentTerms', 'action' => 'index']) ?></li>
<li><?= $this->Html->link(__('New Payment Term'), ['controller' => 'PaymentTerms', 'action' => 'add']) ?></li>
</ul>
</nav>
<div class="customers form large-9 medium-8 columns content">
<?= $this->Form->create($customer) ?>
<fieldset>
<legend><?= __('Add Customer') ?></legend>
<?php
echo $this->Form->input('name');
echo $this->Form->input('country_id', ['options' => $countries, 'empty' => true]);
echo $this->Form->input('city_id', ['options' => $cities, 'empty' => true]);
echo $this->Form->input('address');
echo $this->Form->input('postal_address');
echo $this->Form->input('phone');
echo $this->Form->input('email');
echo $this->Form->input('payment_terms_id', ['options' => $paymentTerms, 'empty' => true]);
echo $this->Form->input('stop_credit');
echo $this->Form->input('gst_percentage');
echo $this->Form->input('currency');
echo $this->Form->input('account_closed');
echo $this->Form->input('invoice_email');
echo $this->Form->input('customer_notes');
?>
</fieldset>
<?= $this->Form->button(__('Submit')) ?>
<?= $this->Form->end() ?>
</div>
我能够创建新客户并选择国家/地区和引用我只想限制下拉框，以便我只能为正确的国家/地区选择城市。我试图研究这个，但刚刚遇到使用jshelper的例子，cakephp 3.0不包括。 感谢。
答案 0 :(得分：2)
您可以为jQuery尝试Chained Selects插件 Chained Selects Plugin for jQuery and Zepto
必需的源文件：
ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js
jquery.chained.min.js
示例：
$(document).ready(function() {
$("#cityId").chained("#countryId");
});