I have these models and I'm playing with meta_search to order it.
class Company < ActiveRecord::Base
has_many :delivers
has_many :estimates, :through => :deliver
end
class Estimate < ActiveRecord::Base
has_many :delivers, :dependent => :destroy
has_many :companies, :through => :delivers
end
class Deliver < ActiveRecord::Base
belongs_to :estimate
belongs_to :company
end
As you can see a company has many estimates and I need a filter to show companies in this order: from company who has the highest number of estimates to company that has the lowest number of estimates.
I'd like to have a sort link for it, something like:
= sort_link @search, :estimates_asc
I know that I can order in that way companies with this statement
Company.joins(:estimates).sort_by{|x| -x.estimates.size}
Thanks for helping me.
This is my case and try it in your project, I'll help you with what I can:
So I have cars table with carname_id and carmodel_id in it. then 2 more tables for carnames and carmodels both with name and id in it. now let's say I have carname Mercedes with id 2 and carmodel S classe with id 5, in this case my cartable will contain values 2 and 5 Mercedes S classe.
To sort them by fields I did this way:
in cars controller:
@search = Car.search(params[:search])
@search.meta_sort ||= 'created_at.desc' <-- this line is for default order display, you can use any other field
@cars = @search.all.paginate :page => params[:page], :per_page => 5
and in view
<%= sort_link @search, :carname_name, "Car make" %> <-- carname is the field from
car table where the carname id is stored and name is the he name itself for this id that's in carname table
<%= sort_link @search, :carmodel_name, "Car model"%>
that's all good now.
in your case I just assume it will be something like
<%= sort_link @search, :company_estimate, "Car make" %>
hope it helps.
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