Re: Filtering M2M in Admin Interface

Answering myself, but for future searchers.
This is related to this bug report
https://code.djangoproject.com/ticket/14891 as well as this
discussion http://goo.gl/ac5lg
So for now I'll figure out a work around with QuerySets and indexes,
instead of using keys.

Cheers,
Tim

On Sat, Mar 30, 2013 at 1:40 PM, Tim Cook <tim@mlhim.org> wrote:
> Hi All,
>
> I have a scenario setup very much like the Polls example in the tutorial.
>
> class Terminology(models.Model):
> name = models.CharField(max_length=110)
> abbreviation = models.CharField(max_length=20)
> version = models.CharField(max_length=30)
>
> def __unicode__(self):
> return self.name + " : " + self.version
>
> class Codes(models.Model):
> terminology = models.ForeignKey(Terminology)
> code_string = models.CharField(max_length=110)
> code = models.CharField(max_length=20)
> url = models.URLField(verbose_name="Reference", help_text="An
> optional reference to the description for the code.", blank=True)
>
> def __unicode__(self):
> return self.code + " : " + self.code_string
>
>
> Now to extend this a bit.
>
> class DvCodedString(DvString):
> terminology = models.ForeignKey(Terminology, null=True, blank=True)
> codes = models.ManyToManyField(Codes, null=True, blank=True)
> ...
>
>
> My admin models:
> class CodesInline(admin.TabularInline):
> model = Codes
> extra = 5
>
> class TerminologyAdmin(admin.ModelAdmin):
> fieldsets = (
> (None, {'classes':('wide',),
> 'fields':('abbreviation','version','name',)}),
> )
> inlines = [CodesInline]
> admin.site.register(Terminology, TerminologyAdmin)
>
>
> class DvCodedStringAdmin(admin.ModelAdmin):
> fieldsets = (
> (None, {'classes':('wide',),
> 'fields':('published','prj_name','data_name',)}),
> ("Basic", {'classes':('collapse',),
> 'fields':('terminology','codes',),
> 'description':'When all codes come from one
> terminology (and one version of it).'}),
>
> ...
>
> Currently all codes will be shown in the select box.
> But of course what I really want is the Terminology Choice to filter
> the available codes displayed.
>
> So, my question is:
> Where can I find the relevant documentation on doing this in the admin
> interface?
> Or can it be done in the admin interface?
>
> Thanks,
> Tim
>
>
>
>
>
> --
> ============================================
> Timothy Cook, MSc +55 21 94711995
> MLHIM http://www.mlhim.org
> Like Us on FB: https://www.facebook.com/mlhim2
> Circle us on G+: http://goo.gl/44EV5
> Google Scholar: http://goo.gl/MMZ1o
> LinkedIn Profile:http://www.linkedin.com/in/timothywaynecook



--
============================================
Timothy Cook, MSc +55 21 94711995
MLHIM http://www.mlhim.org
Like Us on FB: https://www.facebook.com/mlhim2
Circle us on G+: http://goo.gl/44EV5
Google Scholar: http://goo.gl/MMZ1o
LinkedIn Profile:http://www.linkedin.com/in/timothywaynecook

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