Agile toolkit CRUD - php

Question

I'm testing Agile Toolkit and i don't understand what i'm doing bad.
I've a table named 'families' which CRUD works fine.
Another table named 'subfamilies' with a relationship n to 1 with families and CRUD works fine too.
But here is my problem, in table 'articles' i've a relationship 1 to 1 with families and another 1 to 1 with subfamilies and CRUD works, i can add delete and modify but when add button is clicked, if i select a family on the form, subfamilies combobox shows me all subfamilies not only ones that are from that family.
How can i specify that if a family is selected the combobox from the add form only show subfamilies relatives to that family?
Code:
file ./lib/Model/Articulos.php:
class Model_Articulos extends Model_Table {
public $entity_code = 'articulos';
function init(){
parent::init();
$this->addField('name')->mandatory(true);
$this->addField('description')->mandatory(true)->type('text');
$this->addField('familias_id')->mandatory(true)->refModel('Model_Familias');
$this->addField('subfamilias_id')->refModel('Model_Subfamilias');
}
}
file ./page/articulos.php:
class page_articulos extends Page {
function init(){
parent::init();
$crud=$this->add('CRUD');
$crud->setModel('Articulos');
if($crud->grid){
$crud->grid->getColumn('name');
$crud->grid->getColumn('familias');
$crud->grid->getColumn('subfamilias');
}
}
}
And finally you can get the mysql workbench eer model here
Thank you in advance,
Serxoz.

Answer 1

Technically, when you define a model, there is a no sub-link between family and subfamily, so your CRUD wouldn't know about the dependency.
To do what you need, you must fully understand the following two examples:
http://demo.atk4.com/demo.html?t=20
http://demo.atk4.com/demo.html?t=22
Next, create a form for adding a new record for Articulous. You will need to use MVCForm but will have to add some additional code for the sub-family field. When you have it done, you'll need to convert your code into a separate class such as Form_Articulos inherited from MVCForm. Your code should go inside the "setModel" method of your form.
Next, extend CRUD like this:
class MyCrud extends CRUD {
public $form_class='Form_Articulos';
}
The new form will be used for editing and addition. One remaining thing you may need is to add model-level validation.
class Model_Articulous ... {
...
function beforeUpdate(&$data){
$family_id=$this->getRef('subfamilias_id')->get('familia_id');
if($family_id != $this->get('familias_id'))
throw $this->exception('Subfamily does not belong to selected family');
}
}