do you mean backward referencing?? http://www.djangoproject.com/documentation/db_api/#backward that gets created for you
if not, could you clarify what does not work for you? what would you like to do and don't know how? On 6/5/06, GinTon <[EMAIL PROTECTED]> wrote: > > I'm trying to implement TG example model as learning in Django. > http://www.turbogears.org/docs/TurboTunes/ > > http://sqlobject.org/SQLObject.html#relationships-between-classes-tables > To create relationships between tables are used: > > ForeignKey: One-to-Many > MultipleJoin: One-to-Many (with back references) > RelatedJoin: Many-to-Many > SingleJoin: One-to-One > > TG model: > > class Genre(SQLObject): > name = StringCol(length=200) > artists = RelatedJoin('Artist') > > class Artist(SQLObject): > name = StringCol(length=200) > genres = RelatedJoin('Genre') > albums = MultipleJoin('Album') > > class Album(SQLObject): > name = StringCol(length=200) > artist = ForeignKey('Artist') > songs = MultipleJoin('Song') > > class Song(SQLObject): > name = StringCol(length=200) > album = ForeignKey('Album') > > Django model _I think that it would be so_: > > class Genre(models.Model): > name = models.CharField( maxlength=200, unique=True ) > artists = models.ManyToManyField( 'Artist' ) > > class Admin: pass > def __str__(self): > return self.name > > class Artist(models.Model): > name = models.CharField( maxlength=200, unique=True, db_index=True > ) > genres = models.ManyToManyField( Genre ) > albums = models.ForeignKey( 'Album' ) > > class Admin: pass > def __str__(self): > return self.name > > class Album(models.Model): > name = models.CharField( maxlength=200, db_index=True ) > artist = models.ForeignKey( Artist ) > songs = models.ForeignKey( 'Song' ) > > class Admin: pass > def __str__(self): > return self.name > > class Song(models.Model): > name = models.CharField( maxlength=200, db_index=True ) > album = models.ForeignKey( Album ) > > class Admin: pass > def __str__(self): > return self.name > > But, how create back references in One-to-Many relationship > _models.ForeignKey_? > > > > > -- Honza Král E-Mail: [EMAIL PROTECTED] ICQ#: 107471613 Phone: +420 606 678585 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users -~----------~----~----~----~------~----~------~--~---
