Collection tag seems to be not working

[ticaje]

Hello, im trying to put into action the tag's functionallity Collection by doing exactly what wiki says, but it shows nothing. I have a collection of events that i would like to show in a template by putting this on an admin page layout: {{ cms:collection:events:events }}, where the ActiveRecord class is event(inside this class i defined the scope cms_collection) and i have a partial called events where i put the cycle in order to show the events one by one. I guess this is the way the wiki explains this feature. Please if im missing something i would appreciate any help. Thanks a lot.

[GBH]

Collection is a really awkward tag to use. It's strange that nothing crashes if you got it wrong. It really just constructs a partial. See this for details: https://github.com/comfy/comfortable-mexican-sofa/blob/master/lib/comfortable_mexican_sofa/tags/collection.rb

But from what I can see in your case it should look something like this: {{cms:collection:event:events}}

event translates to Event.all and events is partial events

[ticaje]

That's exactly what im doing and nothing happens, im stuck on this issue, please if this could sound familiar to somebody...

[ticaje]

Hi Oleg, i was wondering if the problem could be by the fact that my model is proper of my own application and is some kind of outsider for CMS. Jus wandering, what do you think about it, cause there is nothing more that could suggest me anything else. Thank you for your time.

On 09/24/2012 05:23 PM, Oleg wrote:

Collection is a really awkward tag to use. It's strange that nothing crashes if you got it wrong. It really just constructs a partial. See this for details: https://github.com/comfy/comfortable-mexican-sofa/blob/master/lib/comfortable_mexican_sofa/tags/collection.rb

But from what I can see in your case it should look something like this: |{{cms:collection:event:events}}|

|event| translates to |Event.all| and |events| is partial |events|

— Reply to this email directly or view it on GitHub https://github.com/comfy/comfortable-mexican-sofa/issues/224#issuecomment-8822572.

Héctor Barrientos, Ingeniero Informático.

[GBH]

You really need to debug it somehow. You can go directly into cms code and start raising stuff. It's pretty suspect that nothing shows up. Invalid collection tag should technically blow up as it will construct an invalid partial call.

Try posting more information about how it's all structured. As far as I know it really should work, and I can't guess without knowing more about what's going on in your app.

[ticaje]

Oleg, thank you one more time for your time and dedication, in few details i expose you how did i put all things together in order to integrate CMS with my application:

• I did install CMS just as documentation says.
• After that i did crete a model into my Rails app called events and populated with data by means of rails console.
• Created a partial called events on the view so the CMS could pick it up in ortder to show the event records. -on CMs admin panel i added a layout and inside that layout i pasted this code: {{ cms:collection:event:events }}
• Then i did create a page that uses the just created layout by me on CMS interface. ... and that al, nothing more and nothing less, is valid to recognize that im using a testing scenario in order to probe this functionallity, what happens is that the page never renders the partial i just mentioned about.

Thank a lot

[anthonylebrun]

I'm having the same issue as @ticaje and pretty much followed the steps he lists above.

def render
    if self.content.present?
        ps = collection_params.collect_with_index{|p, i| ":param_#{i+1} => '#{p}'"}.join(', ')
        ps = ps.present?? ", #{ps}" : ''
        "<%= render :partial => '#{collection_partial}', :locals => {:model => '#{collection_class}', :identifier => '#{content}'#{ps}} %>"
    else
        ''
    end
end

In my case, debugging shows that the else clause is always being executed, which would explain why render is not blowing up. @GBH I'm a little confused by what self.content represents in the context of a cms:collection, could you give us a simple and complete use case for the collection tag?

[GBH]

Maybe there's a confusion about what this tag does. This is what it allows you to do:

• generates a select for the admin area where you can choose one item from the collection
• if something was chosen it will be rendered out with the content.

So self.content bit is the id of the item you've selected. If nothing was selected, nothing will be rendered. Tests show implementation: https://github.com/comfy/comfortable-mexican-sofa/blob/master/test/unit/tags/collection_test.rb

[anthonylebrun]

@GBH Oh ok, there was indeed confusion about it's purpose (I now have it working the way you meant it). What I was intending to do was the equivalent of rails render :partial with the :collection => @items option. Would the solution here be to use an erb/haml layout for every page that I intend to do this on instead of trying to use CMS?

[GBH]

Yes. You probably want just to render a partial. So define a {{cms:partial}} tag on the layout. Or have it inside your erb/haml layout.

[barnett]

@GBH Is it possible to do collection with a non AR class? I load a constant from a yml file and call it via MapChoices['county']. How would I use a collection tag on such an array?