The solution I eventually used is to require that the reviewer
queryset be stored in a session variable. Since this queryset is
required in the template context in order for the templatetags to
work, saving the value in a session variable isn't much to ask.
Please let me know if you think this solution is problematic in
nature. Thanks!
Graham
On Aug 19, 5:56 pm, grahamu <gra...@flyingcracker.com> wrote:
> In general, I'm wondering how to retrieve a Queryset provided to a
> Form (choices for a ManyToMany field) from within a view that only
> accepts POST data from that form. This isn't really a question about
> extending django.contrib.comments, but that framework provides a good
> point of reference for the issue.
>
> For example, suppose I wanted to add: "reviewers = models.ManyToMany
> (User)" to the django.contrib.comment Comment model. This would be a
> list of Users who are allowed to review the comment, specified by the
> comment creator.
>
> In order for this to work we need to provide a Queryset of Users when
> creating the form. This can be accomplished with a template tag of the
> form "{% get_comment_form for [object] with [reviewers] as [varname]
> %}", where 'reviewers' is a Queryset passed in the template context.
> This works fine.
>
> However, when the form is posted, we don't have visibility (in the
> post view) to the Queryset of possible reviewers. The post view, after
> checking the validity of several other pieces of data, creates a new
> comment form to check the validity of the received data. Of course the
> form must have a Queryset for the 'reviewers' field, and this isn't
> part of the request POST data.
>
> Any ideas how one might either pass the queryset data to the view in
> the form, or some other way to manage the form validation in this
> situation?
>
> Graham
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