Daniel,
Now we're cooking. You were quite right. A red herring that I had the
wrong syntax. The function list2text was not correct. It had been
correct but for whatever reason I didn't notice that I messed up a tab
key (in Python) and it was not computing correctly (whereas at one
point it was). I fixed the missing tab and I put a few more bits of
defensive coding. Thanks!
On Aug 9, 12:55 pm, Daniel Roseman <dan...@roseman.org.uk> wrote:
> On Aug 9, 12:42 pm, rmschne <rmsc...@gmail.com> wrote:
>
>
>
>
>
> > I'm looking for the right syntax for inside a template to display a
> > model variable that is actually not a field in the database (defined
> > by the mode), but a Model method.
>
> > Class Member(model.Models):
> > id = models.IntegerField(primary_key=True, db_column='ID')
> > lname = models.CharField(max_length=150, db_column='LName',
> > blank=True)
> > fname = models.CharField(max_length=150, db_column='FName',
> > blank=True)
> > .... (plus other fields)
>
> > def contactslistindirectory(self):
> > """Returns a comma deliminted list of all member contacts
> > (with last contact prefixed by and)"""
> > s1=self.contacts.all().filter(indirectory=True)
> > s=list2text(s1)
> > return s
>
> > The model method "contactslistindirectory() returns a string of the
> > name of the contacts for that member. It's getting that information
> > from another model called Contact which has a ForeignKey connection
> > back to Member.
>
> > I have a template working that can display {{ member.lname }},
> > {{member.fname }} and others. The template loops through all
> > members.
>
> > I want to display in the template for each member the value of what is
> > in contactslistindirectory. I've tried
> > {{ member.contactslistindirectory }} and that doesn't work. I don't
> > know the syntax for displaying the value of a Model Method in a
> > template. I'm sure the answer is right in front of me, but despite
> > searching the documentation for examples, I can't spot it. I can see
> > how the model methods are defined, but as yet have not seen how to use
> > that in a template.
>
> > Any pointers?
>
> {{ member.contactslistindirectory }} is the correct syntax. There must
> be something wrong with the method - perhaps the filter is not
> returning any results, or perhaps list2text is incorrect.
>
> You might try debugging by putting a 'print s' before the return
> statement in your method, and seeing what that prints in the console.
> --
> DR.
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