I have the following code setup (snipped for brevity)
class BasePackage extends AppModel {
public $name = 'BasePackage';
public $hasAndBelongsToMany = array('ProductSubtype', 'ProductType');
}
class ProductType extends AppModel {
public $name = 'ProductType';
}
class ProductSubtype extends AppModel {
public $name = 'ProductSubtype';
}
Above are the simple Model classes.
/* tables in database */
base_packages
product_types
product_subtypes
base_packages_product_types
base_packages_product_subtypes
The first table is the main package that users are creating with the form, the product_* tables are pre-loaded with appropriate types and subtypes (they don't change very often), the last two are the Join tables that CakePhp wants to have
/* in BasePackage/add.ctp */
// ...
<ul class="nwblock">
<li>
<?php
echo $this->Form->input('ProductType.product_type_id', array(
'label' => 'Choose Product Type',
'type' => 'select',
'class' => 'form-control',
'style' => 'width:300px; margin-bottom:20px;',
'options' => $protypes
));
?>
</li>
</ul>
<ul class="nwblock">
<li>
<?php
echo $this->Form->input('ProductSubtype.product_subtype_id', array(
'label' => 'Choose Subtype(s)',
'multiple' => 'multiple',
'type' => 'select',
'class' => 'form-control',
'style' => 'width:300px;height:390px;margin-bottom:20px;',
'options' => $subtypes
));
?>
</li>
</ul>
// ...
Above we see the two controls that are loaded from the product_* tables. The types are a single select dropdown and the subtypes are a multiple select list.
/* in BasePackageController.php */
public function add() {
$protypes = $this->BasePackage->ProductType->find('list',
array('fields' => array('ProductType.id', 'ProductType.display')));
$subtypes = $this->BasePackage->ProductSubtype->find('list',
array('fields' => array('ProductSubtype.id', 'ProductSubtype.display')));
$this->set('protypes', $protypes);
$this->set('subtypes', $subtypes);
if ($this->request->is('post')) {
$this->BasePackage->create();
if (!empty($this->request->data)) {
$this->BasePackage->saveAll($this->request->data, array('deep' => true));
}
}
}
The process is as follows, while the user creates a new BasePackage, they select a ProductType from a dropdown box and one to many ProductSubtypes from a multiple select list. When the $this->BasePackage->saveAll() call is made, the data to be inserted into base_packages and base_packages_product_types tables is inserted correctly. However, the base_packages_product_subtypes table remains untouched.
UPDATE:
If I remove the 'multiple' => 'multiple',
from the form->input options, the code saves both the producttype and the productsubtype (as expected). This is obviously not sufficient, as I need to save 1-to-many. Anyone know how to activate the 'Many' part of the HABTM?