probably need to customize the view then... or maybe work on your
permissions

On Jul 8, 2:52 pm, Ronbo <[email protected]> wrote:
> Thanks Kevin - I've done that. I still get a selector that allows
> users to specify multiple sections for the piece.
>
> On Jul 8, 1:42 pm, kevinpfromnm <[email protected]> wrote:
>
>
>
> > Then put the :accessible => true on the join, not either of the
> > endpoints.
>
> > On Jul 8, 6:53 am, Ronbo <[email protected]> wrote:
>
> > > Thanks Kevin.
>
> > > This is getting closer.
>
> > > I have what I'm sure is a has_many to has_many relationship. Here is
> > > the situation:
>
> > > Users can create new docs.
>
> > > They can add boilerplate pieces from a library to the doc.
>
> > > Each doc also has 5 standard sections which can have about 14 standard
> > > subsections, and users can assign/reassign a piece to a section/
> > > subsection, so
>
> > > doc has_many :pieces
> > > piece has_many :docs
>
> > > what I want to do is let users choose which section and subsection of
> > > the doc  a piece belongs to. I think the place to store this info is
> > > the join - there may be a whole different approach I am not thinking
> > > of.
>
> > > doc_piece either has additional relationships with section and
> > > subsection models, or they could be field enums on doc_piece itself.
> > > I need to expose them as a couple of drop dowsn in the UI. Users can
> > > choose a (sub)section and later move the piece to another one, but the
> > > join relationship can only assign the piece to one section and
> > > subsection of the doc at a time.
>
> > > So really, I just need a way to expose the section and subsections to
> > > the user as simple selects.
>
> > > On Jul 7, 8:46 pm, kevinpfromnm <[email protected]> wrote:
>
> > > > sorry, read back a bit and think this says what I needed to know.
>
> > > > > problem is that this results in an additive list, where users can keep
> > > > > making selections. What I need is a regular drop down, where they can
> > > > > only make one selection. My reading about accessible => true, is that
> > > > > it does not work on a has_one. Is this something I could force in the
> > > > > view?
>
> > > > this makes it sound like you don't really want a join table but
> > > > instead a belongs_to relationship (or two).  Unless you're mistaking
> > > > what this code is doing in the view:
>
> > > > > class A
> > > > > has_many AB
> > > > > has_many B, :through AB
> > > > > has_many D, :through => AB, :accessible => true
>
> > > > this tells it to allow class A to add D's through the AB join table.
> > > > each addition is not another D on a single link, but another AB join
> > > > (though B would be nil).  if you want there to be possible multiple
> > > > relationships for each A and B, but a selection for D, you want
> > > > the :accessible => true on the join table like this:
>
> > > > class A
> > > > has_many AB, :accessible => true # this will let A's form, create AB's
> > > > which will have the dropdown selectors for B and D
> > > > has_many B, :through => AB
> > > > has_many D, :through => AB # not accessible

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