Sha256: 0fa51c130ffff22b498d8b869c8717d21c84fc089d272a8f6ac6662592cad789
Contents?: true
Size: 1.18 KB
Versions: 35
Compression:
Stored size: 1.18 KB
Contents
module ActiveRecord
class PredicateBuilder
class ArrayHandler # :nodoc:
def initialize(predicate_builder)
@predicate_builder = predicate_builder
end
def call(attribute, value)
values = value.map { |x| x.is_a?(Base) ? x.id : x }
nils, values = values.partition(&:nil?)
return attribute.in([]) if values.empty? && nils.empty?
ranges, values = values.partition { |v| v.is_a?(Range) }
values_predicate =
case values.length
when 0 then NullPredicate
when 1 then predicate_builder.build(attribute, values.first)
else attribute.in(values)
end
unless nils.empty?
values_predicate = values_predicate.or(predicate_builder.build(attribute, nil))
end
array_predicates = ranges.map { |range| predicate_builder.build(attribute, range) }
array_predicates.unshift(values_predicate)
array_predicates.inject { |composite, predicate| composite.or(predicate) }
end
protected
attr_reader :predicate_builder
module NullPredicate # :nodoc:
def self.or(other)
other
end
end
end
end
end
Version data entries
35 entries across 35 versions & 4 rubygems