Question about collection_check_box

[Ronny Fauth]

Hi there,

i want to use collection_check_boxes (in rails 4) but i am a little bit
stuck... okay, first things first:

i have 2 models:

----------------
class Supervisioncategory < ActiveRecord::Base
has_many :phonenotes
end
----------------

and

----------------
class Phonenote < ActiveRecord::Base
belongs_to :employee
belongs_to :supervisioncategory
belongs_to :trainingcategory
end
----------------

and i want to use collection_check_box for the categories

----------------
<div class="field">
<%= f.label :supervision %><br>
<%= collection_check_boxes :phonenote, :supervision_ids,
@supervisions, :id, :name %>
</div>
----------------

shows all the categories i want, i can check them, i made the
":supervision_ids" accessible. But then...
nothing happend? I think my problem is at the typ of the
":supervision_ids".. integer won't work, string won't work. So... can
someone help me with this Problem?

Regards,

Ronny

[Walter Lee Davis]

View source as generated by Rails in your browser, and see what these checkboxes look like in HTML. That's where I would start debugging this. My guess is that you need these to be supervisioncategory_ids, since that's what the b/t is saying the model is named. But without looking at the HTML, we won't know if your checkboxes are properly named to post as an array back to your controller.

Walter

>
> Regards,
>
> Ronny
>
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[Ronny Fauth]

Am 2013-12-03 18:42, schrieb Walter Lee Davis:

> View source as generated by Rails in your browser, and see what these
> checkboxes look like in HTML. That's where I would start debugging
> this. My guess is that you need these to be supervisioncategory_ids,
> since that's what the b/t is saying the model is named. But without
> looking at the HTML, we won't know if your checkboxes are properly
> named to post as an array back to your controller.
>
> Walter

Here you go:

<div class="field">
<label for="phonenote_supervision">Supervision</label><br>
<input id="phonenote_supervision_ids_1"
name="phonenote[supervision_ids][]" value="1" type="checkbox">
<label for="phonenote_supervision_ids_1">TG</label>
<input id="phonenote_supervision_ids_2"
name="phonenote[supervision_ids][]" value="2" type="checkbox">
<label for="phonenote_supervision_ids_2">P</label>
<input id="phonenote_supervision_ids_3"
name="phonenote[supervision_ids][]" value="3" type="checkbox">
<label for="phonenote_supervision_ids_3">Fahrdienst</label>
<input name="phonenote[supervision_ids][]" value="" type="hidden">
</div>

Regards

[Walter Lee Davis]

Okay, that looks right, as far as it goes. Now what happens in your console if you find a phonenote, and ask for its supervisions?

p = Phonenote.first
p.supervisions

# error, or array?

Walter

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[Ronny Fauth]

Am 2013-12-03 19:26, schrieb Walter Lee Davis:

> Okay, that looks right, as far as it goes. Now what happens in your
> console if you find a phonenote, and ask for its supervisions?
>
> p = Phonenote.first
> p.supervisions
>
> # error, or array?
>

2.0.0-p353 :002 > p.supervisions
NoMethodError: undefined method `supervisions' for
#<Phonenote:0xb042698>

Ronny

[Ronny Fauth]

2.0.0-p353 :003 > p.supervisioncategories
NoMethodError: undefined method `supervisioncategories' for
#<Phonenote:0xb042698>

2.0.0-p353 :004 > p.supervisioncategory_id
=> nil
2.0.0-p353 :005 >