lib/locmare/list_group/list/base.rb

   1 module Locmare
   2   module ListGroupModule
   3     class Base
   4       attr_accessor :list_group_name, :list_name, :operators, :options, :item_name,
   5         :controller_manifest, :action_manifest, :list_manifest, :model, :table_name,
   6         :page_status, :item_wheres, :list_wheres
   7
   8       def initialize list_group_name, list_name, operators, options = {}
   9         @list_group_name = list_group_name
  10         @list_name = list_name
  11         @operators = operators
  12         @options = options
  13
  14         @list_group_manifest = LocalManifest.manifest.list_groups[@list_group_name]
  15         @list_manifest = @list_group_manifest.lists[@list_name]
  16         @wheres = @list_manifest.wheres
  17         @includes = @list_manifest.includes
  18
  19         @controller_name = @list_group_name
  20         @action_name = @list_name
  21         @controller_manifest = ::Manifest.manifest.controllers[@controller_name]
  22         @action_manifest = @controller_manifest.actions[@action_name]
  23         @item_name = @action_manifest.item_name
  24         @model = ::Manifest.item_name_to_model @item_name
  25         @table_name = @model.table_name
  26         self.init
  27       end
  28
  29       def init
  30       end
  31
  32       def reset
  33         @page_status = nil
  34         @item = nil
  35         @total = nil
  36       end
  37
  38       def page_status
  39         @page_status ||= LibModule::PageStatus.load(self, self.total, @options)
  40       end
  41
  42       def model_name
  43         @model.model_name
  44       end
  45
  46       def limited?
  47         self.max_page_size > 0
  48       end
  49
  50       def unlimited?
  51         !self.limited?
  52       end
  53
  54       def default_page_size
  55         @action_manifest.default_page_size
  56       end
  57
  58       def max_page_size
  59         @action_manifest.max_page_size
  60       end
  61
  62       def order
  63         order = @options['order'] || @options[:order] || @action_manifest.order
  64         order = 'updated_at' unless ::Manifest.manifest.models[@item_name].attributes[order]
  65         @table_name + '.' + order
  66       end
  67
  68       def direction
  69         direction = @options['direction'] || @options[:direction] || @action_manifest.direction
  70         if direction < 0
  71           'desc'
  72         elsif direction > 0
  73           'asc'
  74         else
  75           ''
  76         end
  77       end
  78
  79       def filter_id
  80         @options['id'] || @options[:id]
  81       end
  82
  83       def order_by
  84         self.order + ' ' + self.direction
  85       end
  86
  87       def include_hash
  88         @includes.includes
  89       end
  90
  91       def arel
  92         r = @model
  93         @wheres.each do |key|
  94           n = key + '_list_where'
  95           r = r.where(@model.respond_to?(n) ? @model.__send__(n, self) : self.__send__(n))
  96         end
  97         r.includes(
  98           self.include_hash
  99         )
 100       end
 101
 102       def items
 103         self.total  # get total
 104         return [] unless self.page_status  #.pager
 105         @items ||= self.arel.order(
 106           self.order_by
 107         ).offset(self.page_status.offset).limit(self.page_status.limit)
 108         self.boost
 109         @items
 110       end
 111
 112       def total
 113         @total ||= self.arel.count
 114       end
 115
 116       def boost_manifests
 117         @model.my_peta.boost.select do |boost_name, boost_manifest|
 118           boost_manifest.level == 'show'
 119         end
 120       end
 121
 122       def boost
 123         manifests = self.boost_manifests
 124         @items.each do |item|
 125           manifests.each do |boost_manifest|
 126             item.boost_manifest # ?
 127           end
 128         end
 129       end
 130
 131       def private_list_where
 132         owner_model = if @model.element?
 133           @model.root_model
 134         else
 135           @model
 136         end
 137         case owner_model.owner_type
 138         when :author
 139           operator = @operators.author
 140         when :artist
 141           operator = @operators.artist
 142         end
 143         [owner_model.table_name + '.' + owner_model.owner_type.to_s + '_id = ?', operator.id]
 144       end
 145
 146     end
 147
 148   end
 149 end