lib/manifest/model/list/has_many_through.rb

   1 module Manifest
   2   module ListModule
   3     class HasManyThroughList < BaseList
   4       attr :list, :list_name, :list_manifest,
   5         :belongs_to, :has_many, :has_one
   6
   7       def set_default
   8         super
   9       end
  10
  11       def init
  12         super
  13         return
  14         @list_list_conf = @manifest.list(@item_name).lists[list_name] || {}
  15         @association_name = @list_list_conf['association_name']
  16         @has_many_conf = @manifest.model(@item_name).associations['has_many'] || {}
  17         @association_conf = @has_many_conf[@association_name] || {}
  18         @association_through_model_name = @association_conf['through']
  19         @association_through_model = @association_through_model_name.classify.constantize
  20         @association_model_name = @association_conf['model']
  21         @association_model = @association_model_name.classify.constantize
  22         @foreign_key = @association_conf['foreign_key']
  23        if @association_model.content?
  24           @owner_model = @association_model.owner_model
  25           @owner_table_name = @owner_model.table_name if @owner_model
  26         end
  27       end
  28
  29       def where root_item
  30         w = @association_model.list_where
  31         w += ' and ' unless w.blank?
  32         [w + @association_through_model.table_name + '.' + @foreign_key + ' = ?', root_item.id]
  33       end
  34
  35       def includes
  36         {@association_through_model.table_name => {@item_name => {}}}
  37       end
  38
  39       def items root_item
  40          @association_model.where(self.where(root_item)).includes(self.includes).order(self.order).offset(@offset).limit(@page_size)
  41       end
  42
  43       def paginate root_item
  44         Kaminari.paginate_array(Array.new(@association_model.where(self.where(root_item)).includes(self.includes).count, nil)).page(@offset).per(@page_size)
  45       end
  46
  47       def self.add_action item_name, action_name, list_name, list_conf
  48         return
  49       end
  50     end
  51
  52   end
  53 end