Contents

class Card::Query
  class Reference
    DEFINITIONS = {
      # syntax:
      # wql query key => [ direction, {reference_type} ]
      # direction      = :out | :in
      # reference_type =  'L' | 'I' | 'P'

      refer_to: [:out, 'L', 'I'], referred_to_by: [:in, 'L', 'I'],
      link_to:  [:out, 'L'],     linked_to_by:   [:in, 'L'],
      include:  [:out, 'I'],     included_by:    [:in, 'I']
    }.freeze

    FIELDMAP = {
      out: [:referer_id, :referee_id],
      in:  [:referee_id, :referer_id]
    }.freeze

    attr_accessor :conditions, :cardquery, :infield, :outfield

    def table_alias
      @table_alias ||= "cr#{@parent.table_id force = true}"
    end

    def initialize key, val, parent
      key = key
      val = val
      @parent = parent
      @conditions = []

      direction, *reftype = DEFINITIONS[key.to_sym]
      @infield, @outfield = FIELDMAP[direction]

      if reftype.present?
        operator = (reftype.size == 1 ? '=' : 'IN')
        quoted_letters = reftype.map { |letter| "'#{letter}'" } * ', '
        @conditions << "ref_type #{operator} (#{quoted_letters})"
      end

      if val == '_none'
        @conditions << 'present = 0'
      else
        @cardquery = val
      end

      self
    end
  end
end

Version data entries

7 entries across 7 versions & 1 rubygems

Version	Path
card-1.18.6	lib/card/query/reference.rb
card-1.18.5	lib/card/query/reference.rb
card-1.18.4	lib/card/query/reference.rb
card-1.18.3	lib/card/query/reference.rb
card-1.18.2	lib/card/query/reference.rb
card-1.18.1	lib/card/query/reference.rb
card-1.18.0	lib/card/query/reference.rb