Re: Can't edit reverse relation in a many2many field in admin site
Thank you so very much!! It worked exactly like I wanted. I had been through
the django tickets, but since this ticket has no keywords, I wasn't able to
find it... It's sad to see that this is being going on for nearly 3 years!!!
In my case, I had my tables 'syncdb'ed already, so it was not an issue for
me. But it's well worth the effort to comment out the field definition on
the second table before the 'syncdb', then remove the comment afterward.
[]s
Nelson
On Sat, Dec 6, 2008 at 4:47 AM, anode <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> I'm not an expert either, but I think you can get what you want using
> a technique from here:
> http://code.djangoproject.com/ticket/897
>
> Basically you just tell your Track model it's part of a many to many
> relationship like this:
>
> class Track(models.Model):
>name = models.CharField(max_length = 50)
>records = models.ManyToManyField('Record', db_table =
> 'music_record_tracks')
>
> The only issue with this is that running sync_db with this kind of set-
> up might not work too well, as it would probably try to create the
> intermediary many-to-many table twice. I think this will only happen
> if the Track database table doesn't exist when syncdb is run, so it
> should be fine in your case, but beware if you try to set up a
> database from scratch. Just comment out the many-to-many field in the
> Track model temporarily when you set up a new database and syncdb
> should run ok.
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Re: Can't edit reverse relation in a many2many field in admin site
Hi,
I'm not an expert either, but I think you can get what you want using
a technique from here:
http://code.djangoproject.com/ticket/897
Basically you just tell your Track model it's part of a many to many
relationship like this:
class Track(models.Model):
name = models.CharField(max_length = 50)
records = models.ManyToManyField('Record', db_table =
'music_record_tracks')
The only issue with this is that running sync_db with this kind of set-
up might not work too well, as it would probably try to create the
intermediary many-to-many table twice. I think this will only happen
if the Track database table doesn't exist when syncdb is run, so it
should be fine in your case, but beware if you try to set up a
database from scratch. Just comment out the many-to-many field in the
Track model temporarily when you set up a new database and syncdb
should run ok.
On Dec 5, 6:21 pm, Nelson <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I'm fairly new to Django, so I've searched all over for an answer but
> could not really find it. Maybe this is simple stuff, but anyway I
> dont have enough information to judge, so I hope you guys can help
> me...
>
> I have the following many-to-many relation:
>
> class Record(models.Model):
> name = models.CharField()
> tracks = models.ManyToManyField('Track')
>
> class Track(models.Model):
> name = models.CharField()
>
> This means that a Record has multiple Tracks, and a Track can belong
> to many albums (compilations).
>
> To make things easier for the content producers, the Record admin page
> shows the m2m relation in an 'include/exclude list box', since I used
> filter_horizontal = ('tracks',) in the ModelAdmin of the Record.
>
> However, the Track admin page DOES NOT show the 'reverse' of the many-
> to-many relation. I mean, I want to display the 'include/exclude list
> box' that shows all the Records, so the user can choose the ones that
> the Track may belong to.
>
> What do I need to do to show this 'reverse' relation in the Track form
> page?
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Can't edit reverse relation in a many2many field in admin site
Hi,
I'm fairly new to Django, so I've searched all over for an answer but
could not really find it. Maybe this is simple stuff, but anyway I
dont have enough information to judge, so I hope you guys can help
me...
I have the following many-to-many relation:
class Record(models.Model):
name = models.CharField()
tracks = models.ManyToManyField('Track')
class Track(models.Model):
name = models.CharField()
This means that a Record has multiple Tracks, and a Track can belong
to many albums (compilations).
To make things easier for the content producers, the Record admin page
shows the m2m relation in an 'include/exclude list box', since I used
filter_horizontal = ('tracks',) in the ModelAdmin of the Record.
However, the Track admin page DOES NOT show the 'reverse' of the many-
to-many relation. I mean, I want to display the 'include/exclude list
box' that shows all the Records, so the user can choose the ones that
the Track may belong to.
What do I need to do to show this 'reverse' relation in the Track form
page?
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