return u', '.join(self.facet.all()) does not work. I believe from
Dive into Python .join expects a String:
"join works only on lists of strings; it does not do any type
coercion. Joining a list that has one or more non-string elements will
raise an exception."
But in the Python docs it says .join() takes an iterable
parameter. self.facets.all() is a querySet, which is definitely
iterable.
Basically I would like to display every field of my Sample class in
the admin view, like so:
Sample1
tag1 value1
tag2 value2
tag3 value3
sample2
tag1 value4
tag2 value5
Sample and tag are manytomany, and each tag should have one value at a
time. It's this many to many relationship that I'm having trouble
with.
Am I to use inlines, the "through" attribute, write a custom method,
or do I need to hack the Admin to do something which I'm thinking
should be a very common thing.
Thanks!
On Mar 31, 3:40 pm, Daniel Roseman <dan...@roseman.org.uk> wrote:
> On Mar 31, 8:26 pm, Daniel <unagimiy...@gmail.com> wrote:
>
>
>
> > Hi guys,
>
> > I'd appreciate a little advice on the following:
>
> > I'm trying to get a unicode string representation of my model named
> > Sample. But that Sample model has a many to many relationship with
> > another model, Facet.
>
> > So Sample's unicode method:
>
> > def __unicode__(self):
> > return u'%s' %(self.Facet.name,)
>
> > This will not work in the __unicode__ method, but can someone tell me
> > how to represent this? I also want to use list_display inside a
> > SampleAdmin class to allow the admin site to show all the fields of my
> > Sample model, but so far I can't display any many to many fields.
>
> > Thanks again
>
> You need to think about exactly you want to display here. You have a
> manytomany relationship. That means that each Sample has multiple
> Facets. So what do you want to show for each facet? You could join all
> the facets for each sample into a comma-separated list:
>
> return u', '.join(self.facet.all())
>
> Is that what you want?
> --
> DR.
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