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Contents
# rubocop:disable Naming/MethodName
# rubocop:disable Naming/UncommunicativeMethodParamName
module Arel
module Nodes
class Ordering
module OrderingExtension
# Postgres: https://www.postgresql.org/docs/9.4/queries-order.html
attr_accessor :nulls
def initialize(expr, nulls = 0)
super(expr)
@nulls = nulls
end
end
prepend OrderingExtension
end
end
module Visitors
class ToSql
alias old_visit_Arel_Nodes_Ascending visit_Arel_Nodes_Ascending
def visit_Arel_Nodes_Ascending(o, collector)
old_visit_Arel_Nodes_Ascending(o, collector)
apply_ordering_nulls(o, collector)
end
alias old_visit_Arel_Nodes_Descending visit_Arel_Nodes_Descending
def visit_Arel_Nodes_Descending(o, collector)
old_visit_Arel_Nodes_Descending(o, collector)
apply_ordering_nulls(o, collector)
end
def apply_ordering_nulls(o, collector)
case o.nulls
when 1
collector << ' NULLS FIRST'
when 2
collector << ' NULLS LAST'
else
collector
end
end
end
class Dot
module OrderingExtension
def visit_Arel_Nodes_Ordering(o)
super
visit_edge o, 'nulls'
end
end
prepend OrderingExtension
end
end
end
# rubocop:enable Naming/MethodName
# rubocop:enable Naming/UncommunicativeMethodParamName
Version data entries
10 entries across 10 versions & 1 rubygems