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rails--rails/lib/arel/visitors/join_sql.rb
2010-12-14 11:04:08 -08:00

19 lines
484 B
Ruby

module Arel
module Visitors
###
# This class produces SQL for JOIN clauses but omits the "single-source"
# part of the Join grammar:
#
# http://www.sqlite.org/syntaxdiagrams.html#join-source
#
# This visitor is used in SelectManager#join_sql and is for backwards
# compatibility with Arel V1.0
module JoinSql
private
def visit_Arel_Nodes_SelectCore o
o.source.right.map { |j| visit j }.join ' '
end
end
end
end