[...]CodeIgniter and Doctrine from scratch Day 6 – Models with Relationships | PHP and Stuff[...]…

In my setup() function, I have the following:
$this->hasOne(‘User’, array(
‘local’ => ‘CreatedUserID’,
‘foreign’ => ‘UserID’
));
$this->hasOne(‘User’, array(
‘local’ => ‘ModifiedUserID’,
‘foreign’ => ‘UserID’
));

It only creates a FK for ModifiedUserID or whatever I have as the last one defined.
any help?

I have created 2 classed named:
Account and Numbers
relation between them = 1 to many -> 1 Account has more Numbers.

i have done an entry on both but want to add another number to the existing account. The account id = 3.

What is the best way to do this?

findOneById($id));

$number = new Number();
$number->msisdn = “5970843″;
$number->Account = $account;
$number->Bal = $bal;
$number->save();
}
}

this code inserts a new number but with NULL for account number which should be 3.

any help?

// make a new property, override key checks, save.
$p = new Property();
Doctrine_Manager::connection()->execute('SET FOREIGN_KEY_CHECKS = 0');
$p->save();

// now proceed using the saved property object				

$pc = $p->primary_contact;	

// and this becomes possible
$p->primary_contact->property_id	= $p->id;

$p->save();

I ran into a little problem today that is somewhat relevant to this thread. I find myself coming back here for reference material on using Doctrine with Codeigniter – so hopefully what I learned today will help the next person coming along. This is in regards to saving related records simultaneously with Doctrine. The example in the reference manual here:

http://www.doctrine-project.org/projects/orm/1.2/docs/manual/working-with-models/en#dealing-with-relations

provides an example with a User() object that has a one to one relationship with an Email() object. The manual suggests that the following is possible:

$email = $user->Email;
$user->Email->address = 'jonwage@gmail.com';
$user->save();

the save() method would then create both the new user record and email record in the database at the same time. while this is true, i have finally arrived at the conclusion to that if an inverse one-to-one relationship exists, Doctrine fails to create the records. Here is my example:

a Contact model definition:

class Contact extends Doctrine_Record {

	public function setTableDefinition() {
		$this->hasColumn('name', 'string');
		$this->hasColumn('phone', 'string');
		$this->hasColumn('email', 'string');
		$this->hasColumn('is_recipient', 'string');
		$this->hasColumn('address1', 'string');
		$this->hasColumn('address2', 'string');
		$this->hasColumn('city', 'string');
		$this->hasColumn('state', 'string');
		$this->hasColumn('zip', 'string');
		$this->hasColumn('username', 'string');
		$this->hasColumn('property_id', 'integer', 4);
		$this->hasColumn('contact_type_id', 'integer', 4);
	}

	public function setUp() {
		$this->setTableName('contact');
		$this->actAs('Timestampable');

		$this->hasOne('property', array(
			'local' => 'property_id',
			'foreign' => 'id'
		));

		$this->hasOne('contact_type', array(
			'local' => 'contact_type_id',
			'foreign' => 'id'
		));

	}

}

the corresponding Property model:

class Property extends Doctrine_Record {

	public function setTableDefinition() {
		$this->hasColumn('number', 'string');
		$this->hasColumn('address1', 'string');
		$this->hasColumn('address2', 'string');
		$this->hasColumn('city', 'string');
		$this->hasColumn('state', 'string');
		$this->hasColumn('zip', 'string');
		$this->hasColumn('primary_contact_id', 'integer', 4);
		$this->hasColumn('last_modifier_id', 'integer', 4);
	}

	public function setUp() {
		$this->setTableName('property');
		$this->actAs('Timestampable');

		$this->hasMany('contact', array(
			'local' => 'id',
			'foreign' => 'property_id'
		));

		$this->hasMany('violation', array(
			'local' => 'id',
			'foreign' => 'property_id'
		));

		$this->hasOne('contact as primary_contact', array(
			'local' => 'primary_contact_id',
			'foreign' => 'id'
		));

		$this->hasOne('user as last_modifier', array(
			'local' => 'last_modifier_id',
			'foreign' => 'id'
		));

	}

}

Doctrine fails to insert when I try this:

$p = new Property();
// leaving out lots here for brevity

$pc = $p->primary_contact;

// continue on like this:
$p->primary_contact->name			= $field['contact_name'];

$p->save();

finally i tried to work around what seemed like a key constraint problem with this:

...

Doctrine_Manager::connection()->execute(
'SET FOREIGN_KEY_CHECKS = 0');

$p->save();

this then DOES create the Property object in the db, with the primary_contact_id field properly set to the new Contact id. However, on the other side of the relationship – the ‘property_id’ field for the new Contact record is set to ’0′ – leading me to the conclusion that the inverse one-to-one relationship is causing the problem.

I have programming around this fairly easily with a subsequent fetch and update of the contact record, but if anyone knows of a solution, or sees some error in my code that is causing this, please do say so : )

thx!

How do I remove the foreign key constraint?

Thanks for great tut.

But unfortunately I have a problem with my relations. I can’t figure what the problem is, and its most likely something stupid that I did. Any help will be great.

Fatal error: Uncaught exception ‘Doctrine_Connection_Mysql_Exception’ with message ‘SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`ci_doctrine`.`post`, CONSTRAINT `post_companys_id_companys_id` FOREIGN KEY (`companys_id`) REFERENCES `companys` (`id`))’ in C:\wamp\www\ci_doctrine\system\application\plugins\doctrine\lib\Doctrine\Connection.php:1082 Stack trace: #0 C:\wamp\www\ci_doctrine\system\application\plugins\doctrine\lib\Doctrine\Connection\Statement.php(269): Doctrine_Connection->rethrowException(Object(PDOException), Object(Doctrine_Connection_Statement)) #1 C:\wamp\www\ci_doctrine\system\application\plugins\doctrine\lib\Doctrine\Connection.php(1042): Doctrine_Connection_Statement->execute(Array) #2 C:\wamp\www\ci_doctrine\system\application\plugins\doctrine\lib\Doctrine\Connection.php(687): Doctrine_Connection->exec(‘INSERT INTO pos…’, Array) #3 C:\wamp\www\ci_doctrine\system\application\plugins\doctrine\lib\Doctrine\Connection\UnitOfWork.p in C:\wamp\www\ci_doctrine\system\application\plugins\doctrine\lib\Doctrine\Connection.php on line 1082

The code:
class Post extends Doctrine_Record {

public function setTableDefinition() {
$this->hasColumn(‘content’, ‘string’, 65535);
$this->hasColumn(‘category_id’, ‘integer’, 4);
$this->hasColumn(‘companys_id’, ‘integer’, 4);
}

public function setUp() {
$this->actAs(‘Timestampable’);
$this->hasOne(‘Category’, array(
‘local’ => ‘category_id’,
‘foreign’ => ‘id’
));
$this->hasOne(‘Companys’, array(
‘local’ => ‘companys_id’,
‘foreign’ => ‘id’
));
}

}

class Category extends Doctrine_Record {

public function setTableDefinition() {
$this->hasColumn(‘title’, ‘string’, 255);
}

public function setUp() {
$this->hasMany(‘Post as Posts’, array(
‘local’ => ‘id’,
‘foreign’ => ‘category_id’
));
}
}

class Companys extends Doctrine_Record{
public function setTableDefinition() {
$this->hasColumn(‘companyName’, ‘string’, 255, array(‘unique’ => ‘true’));
$this->hasColumn(‘contactPerson’, ‘string’, 255);
$this->hasColumn(‘contactNumber’, ‘string’, 255);
$this->hasColumn(‘mobileNumber’, ‘string’, 255);
$this->hasColumn(‘email’, ‘string’, 255, array(‘unique’ => ‘true’));
$this->hasColumn(‘password’, ‘string’, 255);
$this->hasColumn(‘category_of’, ‘string’, 255);
}

public function setUp() {
$this->setTableName(‘companys’);
$this->actAs(‘Timestampable’);
$this->hasMutator(‘password’, ‘_encrypt_password’);
$this->hasMany(‘Post as Posts’, array(
‘local’ => ‘id’,
‘foreign’ => ‘companys_id’
));
}

protected function _encrypt_password($value)
{
$salt = ‘#*seCret!@-*%’;
$this->_set(‘password’, md5($salt . $value));
}
}

maybe u have a better idea, i just want to have groups with users, and every user to be part of just one group.