composite identifier, but uses an ID generator other than manually assigning + Symfony2

Question

I have three tables. `item` with fields ``` PK id title description type created delete fk user_id ``` `article` with fields ``` PK item_id (one-to-one with item table), body ``` `media` with fields ``` PK id FK item_id (many-to-one with item table) url type mimetype isexternal ``` The `type` field in `article` table is an ENUM with values `ITEM, ARTICLE and IMAGE`. The entities are autogenerated. So, originally the Article Entity doesn't extends the Item Entity. I had to change that. I always get this error: ``` Entity 'Beachteam\BeachteamBundle\Entity\Article' has a composite identifier but uses an ID generator other than manually assigning (Identity, Sequence). This is not supported. ``` UPDATE: After deleting my type variable and fixing the discriminatormap I get this error: ``` Property Beachteam\BeachteamBundle\Entity\Item::$type does not exist ``` This is my updated Item Entity: ``` <?php namespace Beachteam\BeachteamBundle\Entity; use Doctrine\ORM\Mapping as ORM; /** * Item *…

Accepted Answer

I think this line (in `Item`):

```
/**
 * @ORM\DiscriminatorMap({"ITEM"="Item", "ARTICLE"="Article" "IMAGE"="Media"})
 */
```

should be:

```
/**
 * @ORM\DiscriminatorMap({"ITEM"="Item", "ARTICLE"="Article", "IMAGE"="Media"})
 *                                                          ^
 */
```

I'm not really sure, but it could be that the discriminator map needs fully qualified classnames:

```
/**
 * @ORM\DiscriminatorMap({
 *     "ITEM"="Beachteam\BeachteamBundle\Entity\Item",
 *     "ARTICLE"="Beachteam\BeachteamBundle\Entity\Article",
 *     "IMAGE"="Beachteam\BeachteamBundle\Entity\Media"
 * })
 */
```

Next you will need to remove the property `$type` from `Item`, because `type` is already used as discriminator column.

You might also want to use the console to validate your mappings:

```
app/console doctrine:schema:validate
```

Fix all errors that might be reported.

update

Property Beachteam\BeachteamBundle\Entity\Item::$type does not exist

This means that somewhere in the code the (now non-existent) property `$type` of class `Item` is still being used. You'll have to track down where.

- Search your code for `->type`.

- Clear the cache (delete the content of the `app/cache` folder and run `app/console cache:clear`.

composite identifier, but uses an ID generator other than manually assigning + Symfony2

Solution

Problem