Hi,
One user may have just 1 item or none. (1-1..0 relationship)
I'm trying to accomplish that in symfony2 with doctrine.
I've accomplished an 1 to 1 relationship, it's fairly simple. But how can I
specify to doctrine that when I want to create an user, the item can be
null? (and not to insert a new row and just leave id_item null)
This is what I have:
user.orm.yml file
oneToOne:
userItem:
targetEntity: SOA\AXBundle\Entity\Items
cascade: ["remove", "persist"]
joinColumn:
name: id_item
referencedColumnName: id
nullable: true
And of course, I created ItemsTypeForm class, and added the type in my
userstypeform class:
// UsersTypeForm Class
->add('userItem', new \SOA\AXBundle\Form\ItemsTypeForm())
When I add a new user, everything goes fine. The user is inserted as well
as the item. But when I try to add an user where it has no item (user item
fields are blank), I get the following error:
SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'name' cannot
be null
It is trying to insert the item, with null values.
While I can live with an 1 to 1 relationship, I would like to learn how to
make an 1 to 1..0 relationship.
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