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 page_status
  33         @page_status ||= LibModule::PageStatus.load(self, self.total, @options)
  34       end
  35
  36       def model_name
  37         @model.model_name
  38       end
  39
  40       def limited?
  41         self.max_page_size > 0
  42       end
  43
  44       def unlimited?
  45         !self.limited?
  46       end
  47
  48       def default_page_size
  49         @action_manifest.default_page_size
  50       end
  51
  52       def max_page_size
  53         @action_manifest.max_page_size
  54       end
  55
  56       def order
  57         order = @options['order'] || @options[:order] || @action_manifest.order
  58         order = 'updated_at' unless ::Manifest.manifest.models[@item_name].attributes[order]
  59         @table_name + '.' + order
  60       end
  61
  62       def direction
  63         direction = @options['direction'] || @options[:direction] || @action_manifest.direction
  64         if direction < 0
  65           'desc'
  66         elsif direction > 0
  67           'asc'
  68         else
  69           ''
  70         end
  71       end
  72
  73       def filter_id
  74         @options['id'] || @options[:id]
  75       end
  76
  77       def order_by
  78         self.order + ' ' + self.direction
  79       end
  80
  81       def include_hash
  82         @includes.includes
  83       end
  84
  85       def arel
  86         r = @model
  87         @wheres.each do |key|
  88           n = key + '_list_where'
  89           r = r.where(@model.respond_to?(n) ? @model.__send__(n, self) : self.__send__(n))
  90         end
  91         r.includes(
  92           self.include_hash
  93         )
  94       end
  95
  96       def items
  97         self.total  # get total
  98         return [] unless self.page_status  #.pager
  99         @items ||= self.arel.order(
 100           self.order_by
 101         ).offset(self.page_status.offset).limit(self.page_status.limit)
 102         self.boost
 103         @items
 104       end
 105
 106       def total
 107         @total ||= self.arel.count
 108       end
 109
 110       def boost_manifests
 111         @model.my_peta.boost.select do |boost_name, boost_manifest|
 112           boost_manifest.level == 'show'
 113         end
 114       end
 115
 116       def boost
 117         manifests = self.boost_manifests
 118         @items.each do |item|
 119           manifests.each do |boost_manifest|
 120             item.boost_manifest # ?
 121           end
 122         end
 123       end
 124
 125       def private_list_where
 126         owner_model = if @model.element?
 127           @model.root_model
 128         else
 129           @model
 130         end
 131         case owner_model.owner_type
 132         when :author
 133           operator = @operators.author
 134         when :artist
 135           operator = @operators.artist
 136         end
 137         [owner_model.table_name + '.' + owner_model.owner_type.to_s + '_id = ?', operator.id]
 138       end
 139
 140     end
 141
 142   end
 143 end