kohana ORM - add new record for has_many, has_one relationships

Question

Kohana ORM has the following relationships between model:

1. has_one
2. has_many
3. has_many_through

For example, I have the following defined:

class Model_ORM_Text extends ORM {

    protected $_has_one = array(
        'compiledData' => array('model' => 'CompiledText', 'foreign_key' => 'idText'),
    );

    protected $_has_many = array(
        'translations' => array('model' => 'TextTranslation', 'foreign_key' => 'idText')
    );

    protected $_has_many_through = array(
        'tags' => array('model' => 'TextTranslation', 'through' => 'rl_text_tags')
    );
}

I need to create a new related model for each of these relationships. I've only found the add method in ORM class that allows adding related model that is linked through has_many_through relationships, like this:

$text->add("tags", $tagId);

But I can't find anywhere how I can add a related model for the has_one and simple has_many relationships. Is it possible?

Answer 1

The key to the question is that on the "other" side of every has_many and has_one is a belongs_to. And this is the model where the information is saved.

In your case Model_CompiledText has the column idText (under a specific alias). To (un)set the relationship, you need to manipulate this field. Say you have a belongs_to in there under the name text, this is how you would do it:

$compiledText = ORM::factory('CompiledText');

// set text
// Version 1
$compiledText->text = ORM::factory('Text', $specificId);
// Version 2
$compiledText->text = ORM::factory('Text')->where('specificColumn', '=', 'specificValue')
    ->find();

// unset text
$compiledText->text = null

// save
$compiledText->save();

In the case of a has_one you can access it directly via the parent and so do

$text->compiledData->text = ...;