Hello,
I ran into some additional problems with this. Simply using select_tag
with the ":multiple" option didn't work. In the end I got a multi-
select list to work by creating the following helper method in my
controller helper file:
def certification_requirements_form_column(record, input_name)
select_tag("record[certification_requirements][]",
options_for_select(CertificationRequirement.find(:all).collect { |cr|
[cr.name, cr.id] }, record.certification_requirements.collect { |cr|
cr.id}), {:multiple=>true, :size=>6})
end
In this example I have a habtm relationship between the model Course
and CertificationRequirements. I have placed this helper method in the
helper file for Course, as CertificationRequirement is being called as
a subform.
It all seems to work now. I can save multiple
CertificationRequirements for each Course. And when I edit my course I
see the CertificationRequirements that I saved.
The only 'strange' thing that I see is I have multiple records in my
certification_requirements_courses join table with the same primary
key. This doesn't appear to cause any problems because the combination
of certification_requirement_id and course_id will always be unique.
Does anyone see any potential problems with this approach however? It
seems like the easiest way to get a multi-select box working for habtm
associations.
Any feedback would be greatly appreciated.
Best Regards,
Andrew
On Jan 16, 9:53 am, RogueBusinessServices <[email protected]> wrote:
> Thanks Sergio,
>
> That helps. Now I can override the entire form when it is called as a
> subform! I will just use the code for a multi-select list box that I
> found on the Ruby on Rails website, and substitue that into my subform
> override.
>
> Thanks for your time and effort!
>
> Best Regards,
>
> Andrew
>
> On Jan 16, 9:19 am, "Sergio Cambra .:: entreCables - Symbol Servicios
> Informáticos S.L. ::." <[email protected]> wrote:
>
> > El Friday 16 January 2009 08:52:05 RogueBusinessServices escribió:
>
> > > Hello Sergio,
>
> > > Thank you very much for your reply. However what I am am looking for
> > > is a multi-select list box. I have tried the code above, but this
> > > gives me a bunch of checkboxes. I assume that I will have to override
> > > thesubform, but I'm not exactly sure how I can replace only the
> > >subformfor a particular model. I know how to override the
> > > _form_association.rhtml, but I only want to do it in the particular
> > > case that this form is called as asubformand for a particular model.
>
> > Look at Form
> > Overrides:http://wiki.github.com/activescaffold/active_scaffold/form-overrides
>
> > You can use ahelpermethodor partial.
>
> > > Thanks,
>
> > > Andrew
>
> > > On Jan 15, 10:28 am, "Sergio Cambra .:: entreCables - Symbol Servicios
>
> > > Informáticos S.L. ::." <[email protected]> wrote:
> > > > El Wednesday 14 January 2009 21:34:03 RogueBusinessServices escribió:
> > > > > Hello,
>
> > > > > I've seen bits of information here and there about how to do this, but
> > > > > it still isn't clear to me. Perhaps someone could shed some light on
> > > > > this, or perhaps has some sample code?
>
> > > > > I have ahabtmrelationship between 2 models, A and B. What I want is
> > > > > that when I edit a record of type 'A', that I see a form element that
> > > > > is a list box and it is filled with all of the records of type 'B'.
> > > > > All of the instances of 'B' that have an association with 'A' would be
> > > > > selected by default. I would then want to select or de-select items in
> > > > > that list, and then click on update. When I click on update thehabtm
> > > > > associations would be updated in the database.
>
> > > > > I have found some information on the RoR website about creating my own
> > > > > partial for something like this. Is this what I would need to do for
> > > > > ActiveScaffold? Do I need to create my own partial that overrides the
> > > > > default one for this view? If I do that, where would I need to put
> > > > > this file and what do I need to name it?
>
> > > > > I also read that when subforms are used that the params[:record]
> > > > > namespace is different. Are there any 'gotchas' that I need to look
> > > > > out for when doing this?
>
> > > > > Any help would be greatly appreciated!!
>
> > > > class AesController
> > > > active_scaffold do |config|
> > > > config.columns[:b].form_ui = :select
> > > > end
> > > > end
>
> > > > --
> > > > Sergio Cambra .:: entreCables - Symbol Servicios Informáticos S.L. ::.
> > > > Nicolás Guillén 6, locales 2 y 3. 50.018 Zaragoza
> > > > T) 902 021 404 F) 976 52 98 07 E) [email protected]
>
> > --
> > Sergio Cambra .:: entreCables - Symbol Servicios Informáticos S.L. ::.
> > Nicolás Guillén 6, locales 2 y 3. 50.018 Zaragoza
> > T) 902 021 404 F) 976 52 98 07 E) [email protected]
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