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module Arel
module Predicates
class Binary < Predicate
def to_sql(formatter = nil)
"#{operand1.to_sql} #{predicate_sql} #{operand1.format(operand2)}"
end
end
class CompoundPredicate < Binary
def to_sql(formatter = nil)
"(#{operand1.to_sql(formatter)} #{predicate_sql} #{operand2.to_sql(formatter)})"
end
end
class Or < CompoundPredicate
def predicate_sql; "OR" end
end
class And < CompoundPredicate
def predicate_sql; "AND" end
end
class Equality < Binary
def predicate_sql
operand2.equality_predicate_sql
end
end
class Not < Binary
def predicate_sql; '!=' end
end
class GreaterThanOrEqualTo < Binary
def predicate_sql; '>=' end
end
class GreaterThan < Binary
def predicate_sql; '>' end
end
class LessThanOrEqualTo < Binary
def predicate_sql; '<=' end
end
class LessThan < Binary
def predicate_sql; '<' end
end
class Match < Binary
def predicate_sql; 'LIKE' end
end
class In < Binary
def predicate_sql; operand2.inclusion_predicate_sql end
end
end
end
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