On Jul 9, 2012, at 6:08 PM, Jules Stevenson wrote:
> Hi All,
>
> I'm trying to put together an Association Object mapping within a pylons app,
> but am getting the following error:
>
> OperationalError: (OperationalError) (1364, "Field 'user_id' doesn't have a
> default value") 'INSERT INTO contact_duedate_user_association (contact_id,
> modded) VALUES (%s, %s)' (209L, datetime.date(2012, 7, 18))
>
> As far as I can tell I've followed the recomendations in the association
> object help and am somehwta stumped as to what is causing the error. The
> classes are non-declarative, and are as follows (and if the formatting holds
> up the relevant bits should be in bold). Any help enormously appreciated.
mapping looks fine, you'd need to ensure every ArkContactDueDate you add to the
Session is associated with a User also in that session. single_parent=True
should not be needed here.
>
> contacts_table = sa.Table('contacts', meta.metadata,
> sa.Column('id', sa.types.Integer, primary_key=True),
> sa.Column('project_id', sa.types.Integer, sa.ForeignKey('projects.id')),
> sa.Column('client_id', sa.types.Integer, sa.ForeignKey('clients.id')),
> sa.Column('firstname',sa.types.String(length=255)),
> sa.Column('lastname', sa.types.String(length=255)),
> sa.Column('email1', sa.types.String(length=255)),
> sa.Column('email2', sa.types.String(length=255)),
> sa.Column('workphone', sa.types.String(length=255)),
> sa.Column('mobile', sa.types.String(length=255)),
> sa.Column('company', sa.types.String(length=255)),
> sa.Column('category', sa.types.String(length=255)),
> sa.Column('job_role', sa.types.String(length=255)),
> sa.Column('mailer', sa.types.Boolean),
> sa.Column('type', sa.types.Integer), # 0: contact, 1: press
> sa.Column('modified', sa.types.DateTime),
> )
>
> class ArkContact(object):
> def __init__(self):
> self.category = 0
> self.type = 0
> self.modified = datetime.datetime.now()
>
> #due_contact_association
> contact_due_contact = sa.Table('contact_duedate_user_association',
> meta.metadata,
> sa.Column('contact_id', sa.types.Integer, sa.ForeignKey('contacts.id'),
> primary_key = True),
> sa.Column('user_id', sa.types.Integer, sa.ForeignKey('users.id'),
> primary_key = True),
> sa.Column('modded', sa.types.Date)
> )
>
> class ArkContactDueDate(object):
> def __init__(self):
> pass
>
>
> # ArkContactDueDate
> orm.mapper(ArkContactDueDate, contact_due_contact, properties={
> 'contact': orm.relation(ArkContact, backref = 'due_dates')
> })
>
> # ArkUser - users module
> orm.mapper(ArkUser, users_table, properties={
> 'notes': orm.relation(ArkNote,
> secondary=user_notes_table,
> single_parent=True,
> backref='user',
> order_by=notes_table.c.date,
> cascade="all, delete, delete-orphan"),
> 'software': orm.relation(ArkSoftware,
> secondary=user_software_table,
> backref='users'),
> 'ratings': orm.relation(ArkUserSoftwareRating,
> cascade="all, delete",
> backref='user'),
> 'job': orm.relation(ArkJob,
> backref='user'),
> 'due_contacts': orm.relation(ArkContactDueDate,
> backref = 'due_user',
> single_parent=True)
> })
>
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