Sha256: 98560647bdddf2b203c4af9777e06dd5b78c2e06c4b5d4268d2ac1390bf37f4a
Contents?: true
Size: 1018 Bytes
Versions: 6
Compression:
Stored size: 1018 Bytes
Contents
module Ambition
module Order
def sort_by(&block)
query_context.add OrderProcessor.new(table_name, block)
end
end
class OrderProcessor < Processor
def initialize(table_name, block)
super()
@receiver = nil
@table_name = table_name
@block = block
@key = :order
end
##
# Sexp Processing Methods
def process_call(exp)
receiver, method, other = *exp
exp.clear
translation(receiver, method, other)
end
def process_vcall(exp)
if (method = exp.shift) == :rand
'RAND()'
else
raise "Not implemented: :vcall for #{method}"
end
end
def process_masgn(exp)
exp.clear
''
end
##
# Helpers!
def translation(receiver, method, other)
case method
when :-@
"#{process(receiver)} DESC"
when :__send__
"#{@table_name}.#{eval('to_s', @block)}"
else
"#{@table_name}.#{method}"
end
end
end
end
Version data entries
6 entries across 6 versions & 2 rubygems