This is the doc exemple on column aggregation inheritance :

Entity:
columns:
username: string(20)
password: string(16)
created_at: timestamp
updated_at: timestamp

User:
inheritance:
extends: Entity
type: column_aggregation
keyField: type
keyValue: 1

Group:
inheritance:
extends: Entity
type: column_aggregation
keyField: type
keyValue: 2

But the keyField (type) is created as VARCHAR(255) so PostgreSQL return an error on applying inheritance condition :

SQLSTATE[42883]: Undefined function: 7 ERROR: operator does not exist: character varying = integer
LINE 1: ...D s.application = 'frontend' AND s.lft = 1) AND (s.type = 2)
^
HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts.

I found this with symfony sfFilebasePlugin on sfFilebase:create-root task.

If I define a base model:

Entity:
connection: other
columns:
name: {}
size: {}

and inherited model:

Box:
inheritance:
extends: Entity
type: column_aggregation

Then file with base definition of Box does not contain bindComponent sentence to bind Box model with connection specified for Entity model.

I am trying to use preHydrate/postHydrate with my models that use inheritance. The problem is that when using the parent table is used to query the records, the preHydrate/postHydrate events are passed to the parent record class instead of the proper sub-class for the current record.

Using the example schema below, if I do a findAll() on the Person table and it contained two Student records and one Professor record... preHydrate would get called on Person instead of Student and Professor. This also applies for any listeners that are registered on Student/Professor and not Person.

Person:
columns:
name:

Student:
inheritance:
extends: Person
type: column_aggregation
keyField: type
keyType: 1

Professor:
inheritance:
extends: Person
type: column_aggregation
keyField: type
keyValue: 2

I want to talk about the inheritance, simple type and columns_aggregation.

Here an example of parent classes and two sub-classes : http://pastebin.com/5qJKtgp1
Here the generated models classes : http://pastebin.com/j2PmT7sd

To sum up : The parent class is Show, and the sub-classes are Video and Playlist.

• A Show have a title.
• A Video have a filename.
• A Playlist have a user.

The problem that appear with the generated models, Is that the following code is working.
$playlist = Doctrine_Core::getTable ("Model_Playlist")->find (3);
$playlist->filename;

Or, the POO concept want that the filename property doesn't exist/available on a Playlist object. And Doctrine should throw an Exception ! Or, It is not the case.

The solution is to move the generated code of the sub-classes into there own classes.
Here the complete solution : http://pastebin.com/LzTG10P7

The problem with the one-to-one or many-to-many relationship is still the same.

The solution is more POO compliant.

When creating a model involving column_inheritance the CREATE TABLE statement gets duplicated.

The second CREATE TABLE include an index for the keyField.

Test doctrine generated models and generated schema.sql attached.

I use aggregate column inheritance, say B extends A, and create a new record instance of B using BTable->create(array(...values...)). But due to changeset [7618] this fails to set the aggregate column value to the value assigned for B, it becomes NULL.

to reproduce, create the yaml included in sample.yaml (Note the not-null columns in each subclass)

if you try to save an OnlineProduct without setting copyright_year, or if you create a print_product without setting website_branding_id, then you will get a not null error.
Inherited tables should be able to set their own NOT NULL columns without affecting other tables in the inheritance tree (should be handled in the preSave() method? or is there another mechanism?)

Hi,

I pointed out a strange problem:
I have two tables that are linked with a one to many relation ship.
Each table has some concrete inherited tables.
Here is the schema:

Batch:
  columns:
    code: string
    is_pure: boolean

Flask:
  columns:
    batch_id: integer
    code: string
    quantity: integer
  relations:
    Batch:
      local: batch_id
      foreign: id
      foreignType: many
    
ProducedBatch:
  inheritance:
    type: concrete
    extends: Batch
  columns:
    production_date: date
    
BoughtBatch:
  inheritance:
    type: concrete
    extends: Batch
  columns:
    supplier: string
    
ProducedFlask:
  inheritance:
    type: concrete
    extends: Flask
  columns:
    weight: integer
    
BoughtFlask:
  inheritance:
    type: concrete
    extends: Flask
  columns:
    price: integer

The problem occurs when I try to populate the database.
Here is the data:

ProducedBatch:
  B1:
    code: Batch1

ProducedFlask:
  F1:
    Batch: B1
    code: Flask1

When loading fixtures, I get a

Invalid row key specified: (batch) B1, referred to in (produced_flask) F1

In fact, Doctrine doesn't take into account the primary key inherited from Flask table.
The mapping should be done between parent and child tables.

The only solution to solve this is to set a relationship between each couple of sub-table (ProducedFlask -> ProducedBatch and BoughtFlask -> BoughtFlask).

Please consider the following TestCase

class Doctrine_Ticket_DC464_TestCase extends Doctrine_UnitTestCase
{
    public function prepareTables()
    {
        $this->tables[] = 'Ticket_DC464_Entity';
        $this->tables[] = 'Ticket_DC464_Article';
        $this->tables[] = 'Ticket_DC464_User';
        $this->tables[] = 'Ticket_DC464_Group';
        parent::prepareTables();
    }

    public function testTest()
    {
        $User = new Ticket_DC464_User();

        $Article = new Ticket_DC464_Article();
        $Article->title = 'my first article';
        $Article->Author = $User;

        $Article->save();

        $UserFetched = Doctrine::getTable('Ticket_DC464_User')->find(1);
        $this->assertTrue($UserFetched instanceof Ticket_DC464_User);
       //$this->assertEqual($UserFetched->type, 1);


    }
}



class Ticket_DC464_Entity extends Doctrine_Record
{
    public function setTableDefinition()
    {
        $this->hasColumn('id', 'integer', 11, array('autoincrement' => true, 'primary' => true));
        $this->hasColumn('facultative_field', 'string', 255);
        $this->hasColumn('type', 'string', 255);

        $this->setSubClasses(array(
             'Ticket_DC464_User' =>  array('type' => 1),
             'Ticket_DC464_Group' => array('type' => 2),
        ));

        $this->option('type', 'InnoDB');
    }

    public function setUp()
    {
    }
}

class Ticket_DC464_User extends Ticket_DC464_Entity { }
class Ticket_DC464_Group extends Ticket_DC464_Entity { }

class Ticket_DC464_Article extends Doctrine_Record
{
    public function setTableDefinition()
    {
        $this->hasColumn('id', 'integer', 11, array('autoincrement' => true, 'primary' => true));
        $this->hasColumn('title', 'string', 30);
        $this->hasColumn('author_id', 'integer', 11);

        $this->option('type', 'InnoDB');
    }

    public function setUp()
    {
        $this->hasOne('Ticket_DC464_User as Author', array(
             'local' => 'author_id',
             'foreign' => 'id'));
    }
}

Notice that in the test, the $User instance has no property setted (in fact in this test, the "useless_field" in the model is... useless).

This test fails (the $User object is not saved) because the method UnitOfWork->saveRelatedLocalKeys() - called in saveGraph(), itself called by $Article->save() - returns false because no column has been modified (line 395).

To fix this, the Record->assignInheritanceValues() should be executed in top of isModified(), or for each related object in UnitOfWork->saveRelatedLocalKeys() (and probably UnitOfWork->saveRelatedForeignKeys() too).

I've attached the test.