问题描述
我在多对多关系中遇到问题和领域.联接表fields_problems有一个名为 fieldvalue 的字段.我正在尝试使用一种表单,该表单将问题记录以及多个记录插入到fields_problems中.
I have Problems and Fields in a many-to-many relationship. The join table fields_problems has a field named fieldvalue I am trying to have a form that will insert a problem record and also multiple records into fields_problems.
/src/Model/Table/ProblemsTable.php
class ProblemsTable extends Table
{
public function initialize(array $config)
{
parent::initialize($config);
$this->table('problems');
$this->displayField('id');
$this->primaryKey('id');
$this->addBehavior('Timestamp');
$this->belongsToMany('Fields', [
'foreignKey' => 'problem_id',
'targetForeignKey' => 'field_id',
'joinTable' => 'fields_problems'
]);
}
...
/src/Model/Table/FieldsTable.php
class FieldsTable extends Table
{
public function initialize(array $config)
{
parent::initialize($config);
$this->table('fields');
$this->displayField('name');
$this->primaryKey('id');
$this->addBehavior('Timestamp');
$this->belongsToMany('Problems', [
'foreignKey' => 'field_id',
'targetForeignKey' => 'problem_id',
'joinTable' => 'fields_problems'
]);
}
...
/src/Model/Table/FieldsProblemsTable.php
class FieldsProblemsTable extends Table
{
public function initialize(array $config)
{
parent::initialize($config);
$this->table('fields_problems');
$this->displayField('id');
$this->primaryKey('id');
$this->belongsTo('Fields', [
'foreignKey' => 'field_id',
'joinType' => 'INNER'
]);
$this->belongsTo('Problems', [
'foreignKey' => 'problem_id',
'joinType' => 'INNER'
]);
}
...
我想添加一个新问题,将其链接到字段,然后将值添加到联接表的 fieldvalue 字段中.
And I want to Add a new problem, link it to fields, and add values to the fieldvalue field in the join table.
所以我有这个/src/Template/Problems/add.ctp
<div class="problems form large-10 medium-9 columns">
<?= $this->Form->create($problem) ?>
<fieldset>
<legend><?= __('Add Problem') ?></legend>
<?php
echo $this->Form->input("Problems.id");
echo $this->Form->input('Problems.summary');
echo $this->Form->input('Problems.Fields.0._ids', [
'type' => 'select',
'multiple' => false,
'options' => $fields,
]);
echo $this->Form->input('Problems.Fields.0._joinData.fieldvalue');
echo $this->Form->input('Problems.Fields.1._ids', [
'type' => 'select',
'multiple' => false,
'options' => $fields,
]);
echo $this->Form->input('Problems.Fields.1._joinData.fieldvalue');
?>
</fieldset>
<?= $this->Form->button(__('Submit')) ?>
<?= $this->Form->end() ?>
</div>
/src/Controller/ProblemsController.php
public function add()
{
$problem = $this->Problems->newEntity();
if ($this->request->is('post')) {
$problem = $this->Problems->patchEntity($problem, $this->request->data, ['associated'=>['Fields._joinData']] );
//$problem->dirty('fields',true);
if ($this->Problems->save($problem)) {
$this->Flash->success(__('The problem has been saved.'));
return $this->redirect(['action' => 'index']);
} else {
$this->Flash->error(__('The problem could not be saved. Please, try again.'));
}
}
$fields = $this->Problems->Fields->find('list', ['limit' => 200]);
$this->set(compact('problem', 'fields'));
$this->set('_serialize', ['problem']);
}
当我填写并提交应用程序表单时,问题"记录将保存,但关联未保存,则没有任何内容插入fields_problems.
When I fill out and submit the app form, the Problem record is saved, but the association is not, nothing gets inserted into fields_problems.
我做错了什么,导致关联的joinData无法保存?
What am I doing wrong that is preventing the associated joinData from being saved?
推荐答案
尽管有食谱( http://book.cakephp.org/3.0/en/views/helpers/form.html )说要使用特殊的_ids键,不要!
Despite the cookbook (http://book.cakephp.org/3.0/en/views/helpers/form.html) saying to use the special _ids key, don't!
将"_ids"更改为"id"修复了表单,现在它可以正常地将数据保存到可合并的表单中了.
Changing "_ids" to "id" fixed the form and now it functions properly saving the data into the jointable.
这是我用来构建应用程序的食谱中的示例
Here is the example from the cookbook that I built my app with
echo $this->Form->input('tags.0.id');
echo $this->Form->input('tags._ids', [
'type' => 'select',
'multiple' => true,
'options' => $tagList,
]);
这是应该的样子
echo $this->Form->input('tags.0.id', [
'type' => 'select',
'multiple' => false,
'options' => $tagList,
]);
这篇关于如何在cakephp 3.x中保存关联的joinData的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!