Rails - May 2014 - Re: How to loop through model scopes to generate a listing?

You can use send method for calling scopes as followed:

<%- %w(scope1 scope2).each do |scope|
  <h1><%= scope %></h1>
  <%- Model.send(scope.to_sym).each do |record| %>
    <%= record.attribute%>
  <%- end%><%- end %>

Thanks,
Lauree
Ruby on Rails Developer <http://www.allerin.com>
Allerin Technologies


On Monday, May 5, 2014 6:57:13 PM UTC+5:30, Vell wrote:
>
> Hello all,
>
> I am wondering how I can loop through the scopes defined in a model. As an 
> example, if I want to create an erb template that lists the content of of a
> model separated by scope with the header of that content being the scope 
> name, I would like to be able to do this without having to create a 
> specific loop for each scope.
>
> Instead of something like
>
> <h1>Scope1</h1>
> <% Model.scope1.each do |record| %>
>   <%= record.attribute%>
> <% end %>
>
> <h1>Scope2</h1>
> <% Model.scope2.each do |record| %>
>   <%= record.attribute%>
> <% end %>
>
> I would like to do something like
>
> %w(scope1 scope2).each do |scope|
>   <h1><%= scope %></h1>
>   <% Model.scope.each do |record| %>
>     <%= record.attribute%>
>   <% end%>
> <% end %>
>
> Which hopefully would give me the same output with less code. Does anyone 
> have any ideas on how I might be able to accomplish this?
>
> Thanks
>
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