Conditional named_scope chaining with params (Need help)

[David Sousa]

Hello there,

I have a model that has more then one named_scope.

In my action Index of the controller that handle this model I want to do
this in a drier way:

if params[:ownership] == "mine"
@posts = Post.tagged_with(params[:tags], :on =>
:tags).owner(current_user.id).paginate :all, :page => params[:page],
:order => 'created_at DESC'
else
@posts = Post.tagged_with(params[:tags], :on => :tags).paginate
:all, :page => params[:page], :order => 'created_at DESC'
end

This is just a example, I have a lot of options that is why I don't want
to use the if else end structure.

Thanks,

David Sousa
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[Chris Flipse]

On Tue, Jan 5, 2010 at 8:04 AM, David Sousa <li...@ruby-forum.com> wrote:

Hello there,

I have a model that has more then one named_scope.

In my action Index of the controller that handle this model I want to do
this in a drier way:

   if params[:ownership] == "mine"
       @posts = Post.tagged_with(params[:tags], :on =>
:tags).owner(current_user.id).paginate :all, :page => params[:page],
:order => 'created_at DESC'
   else
       @posts = Post.tagged_with(params[:tags], :on => :tags).paginate
:all, :page => params[:page], :order => 'created_at DESC'
   end

  chain = Posts.tagged_with(params[:tags], :on => :tags)
  chain = chain.owner(current_user.id) if params[:owner]
  chain = chain.posted_since(params[:since]) if params[:since]

  @posts = chain.paginate(:page => params[:page], :order => "created_at DESC")

 

This is just a example, I have a lot of options that is why I don't want
to use the if else end structure.

Thanks,

David Sousa
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[David Sousa]

Thanks Chirs, I will give it a try!

David Sousa

Chris Flipse wrote:
> chain = Posts.tagged_with(params[:tags], :on => :tags)
> chain = chain.owner(current_user.id) if params[:owner]
> chain = chain.posted_since(params[:since]) if params[:since]
>
> @posts = chain.paginate(:page => params[:page], :order => "created_at
> DESC")
>