module Arel module Predications def as other Nodes::As.new self, Nodes::SqlLiteral.new(other) end def not_eq other Nodes::NotEqual.new self, other end def not_eq_any others grouping_any :not_eq, others end def not_eq_all others grouping_all :not_eq, others end def eq other Nodes::Equality.new self, other end def eq_any others grouping_any :eq, others end def eq_all others grouping_all :eq, others end def in other case other when Arel::SelectManager Arel::Nodes::In.new(self, other.ast) when Range if other.exclude_end? left = Nodes::GreaterThanOrEqual.new(self, other.begin) right = Nodes::LessThan.new(self, other.end) Nodes::And.new [left, right] else Nodes::Between.new(self, Nodes::And.new([other.begin, other.end])) end else Nodes::In.new self, other end end def in_any others grouping_any :in, others end def in_all others grouping_all :in, others end def not_in other case other when Arel::SelectManager Arel::Nodes::NotIn.new(self, other.ast) when Range if other.exclude_end? left = Nodes::LessThan.new(self, other.begin) right = Nodes::GreaterThanOrEqual.new(self, other.end) Nodes::Or.new left, right else left = Nodes::LessThan.new(self, other.begin) right = Nodes::GreaterThan.new(self, other.end) Nodes::Or.new left, right end else Nodes::NotIn.new self, other end end def not_in_any others grouping_any :not_in, others end def not_in_all others grouping_all :not_in, others end def matches other Nodes::Matches.new self, other end def matches_any others grouping_any :matches, others end def matches_all others grouping_all :matches, others end def does_not_match other Nodes::DoesNotMatch.new self, other end def does_not_match_any others grouping_any :does_not_match, others end def does_not_match_all others grouping_all :does_not_match, others end def gteq right Nodes::GreaterThanOrEqual.new self, right end def gteq_any others grouping_any :gteq, others end def gteq_all others grouping_all :gteq, others end def gt right Nodes::GreaterThan.new self, right end def gt_any others grouping_any :gt, others end def gt_all others grouping_all :gt, others end def lt right Nodes::LessThan.new self, right end def lt_any others grouping_any :lt, others end def lt_all others grouping_all :lt, others end def lteq right Nodes::LessThanOrEqual.new self, right end def lteq_any others grouping_any :lteq, others end def lteq_all others grouping_all :lteq, others end def asc Nodes::Ordering.new self, :asc end def desc Nodes::Ordering.new self, :desc end private def grouping_any method_id, others others = others.dup first = send method_id, others.shift Nodes::Grouping.new others.inject(first) { |memo,expr| Nodes::Or.new(memo, send(method_id, expr)) } end def grouping_all method_id, others others = others.dup first = send method_id, others.shift Nodes::Grouping.new others.inject(first) { |memo,expr| Nodes::And.new([memo, send(method_id, expr)]) } end end end