It depends on what you want the method to do.
Inside the Picture class, this should work:
class Picture < ActiveRecord::Base
# ...
def self.get_most_viewed_picture
pic = Picture.find(:first, :conditions => ["active = ?", true], :order
=> 'view_count DESC')
pic.increment! :view_count
pic
end
# ...
end
In the controller:
class UsersController < ApplicationController
def index
@picture = Picture.get_most_viewed_picture
end
end
In the view (/app/views/users/index.html.erb):
<h2>Most viewed picture:</h2>
<%= image_tag @picture.url %>
Should do the trick. If not, please explain a little more.
:-) Lasse
2010/2/14 Craig White <[email protected]>
> I need some overview thinking help.
>
> I have Pictures model/controller but generally, I want to show pictures
> via a partial displayed in other controller views and I want to do
> things like choose the picture based upon various concepts of relevance.
> I also want to update a 'view_count' column in the Pictures model each
> time it is displayed.
>
> So if in a partial in /users controller, I would love to be able to call
> some Picture method (either model or controller but probably controller
> is the more logical choice) but I can't figure a way to do this...
>
> <%= PictureController.some_method %> clearly gives me an error
>
> if I try to put that code into a model...
>
> <%= Picture.some_method %> I am still up a creek without a paddle
>
> this works but clearly doesn't belong in a view...
>
> <% @pic_1 = Picture.find(:first, :conditions => ["active =
> true"], :order => 'view_count'); @pic_1.view_count += 1; @pic_1.save! %>
>
> And of course my problem is that I want to use this 'partial' in a bunch
> of different controllers & actions which is why I don't want to include
> it in each controller/method.
>
> What is the best way to handle something like this?
>
> Craig
>
>
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