Method: Sequel::Model.association

Defined in:
lib/sequel/model_patch.rb

.association(assoc_type, assoc_name, options) ⇒ Object 



98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
 
# File 'lib/sequel/model_patch.rb', line 98

def association(assoc_type, assoc_name, options)
  class_name = options[:class]
  prefix = options[:prefix]
  case assoc_type
    when :one_to_many
      key = options[:key] || primary_key
      primary_key = options[:primary_key] || key
      extra_dataset_conditions = options[:extra_conditions] || {}
      graph_conditions = {:"#{prefix} kid - date" => :'kid - date',
                          :"#{prefix} kid - time" => :'kid - time',
                          :"#{prefix} kid - user" => :'kid - user',
                          :"#{prefix} kid - mult" => :'kid - mult',
                          :"#{prefix} kid - comm" => :'kid - comm'}.
          merge(extra_dataset_conditions)
      dataset_filter = proc {
        class_name.to_s.constantize.filter(
        {:"#{prefix} kid - date"=>self[:'kid - date'],
         :"#{prefix} kid - time"=>self[:'kid - time'],
         :"#{prefix} kid - user"=>self[:'kid - user'],
         :"#{prefix} kid - mult"=>self[:'kid - mult'],
         :"#{prefix} kid - comm"=>self[:'kid - comm']}.
          merge(extra_dataset_conditions)
        )
      }
    when :many_to_one
      key = nil
      graph_conditions = {:'kid - date'=>:"#{prefix} kid - date", :'kid - time'=>:"#{prefix} kid - time", :'kid - user'=>:"#{prefix} kid - user", :'kid - mult'=>:"#{prefix} kid - mult", :'kid - comm'=>:"#{prefix} kid - comm"}
      extra_dataset_conditions = options[:dataset_conditions] || {}
      dataset_filter = proc { class_name.to_s.constantize.filter({:"kid - date"=>self[:"#{prefix} kid - date"], :"kid - time"=>self[:"#{prefix} kid - time"], :"kid - user"=>self[:"#{prefix} kid - user"], :"kid - mult"=>self[:"#{prefix} kid - mult"], :"kid - comm"=>self[:"#{prefix} kid - comm"]}.merge(extra_dataset_conditions)) }
  end
  graph_conditions.merge!(options[:graph_only_conditions]) if options[:graph_only_conditions]
  send(assoc_type, assoc_name, :key=> key, :primary_key=>primary_key, :class => class_name, :dataset=> dataset_filter, :graph_only_conditions=>graph_conditions)
end