On 10/23/07, Greg <[EMAIL PROTECTED]> wrote:
[snip]
> class Collection(models.Model):
>
> THE_MATERIAL = (
> ('1', 'Paper'),('2', 'Plastic'),('3', 'Other'),
> )
>
> material = models.CharField(max_length=50, choices=THE_MATERIAL)
>
> ///////////////////
>
> However, now I want to be able to do a query that returns all of the
> values in THE_MATERIAL (even if it's not being used by any
> collection). How would the query be setup to do this?
Well, you can't set up a query for something that isn't in the database.
But the values are right there in THE_MATERIAL. If you want a list of just
the text values, stripping away the numeric choices, some simple Python:
material_list = [y for x,y in THE_MATERIAL]
would do it.
Karen
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