Sha256: 7e7fea6e572b85294f8f29e279694e47f1c93d6fd6d725e72a2fe50e29af9895
Contents?: true
Size: 1.48 KB
Versions: 21
Compression:
Stored size: 1.48 KB
Contents
module PaperTrail
module AttributeSerializers
# Included into model if AR version is < 4.2. Backport Rails 4.2 and later's
# `type_for_attribute` so we can build on a common interface.
module LegacyActiveRecordShim
# An attribute which needs no processing. It is part of our backport (shim)
# of rails 4.2's attribute API. See `type_for_attribute` below.
class NoOpAttribute
def type_cast_for_database(value)
value
end
def type_cast_from_database(data)
data
end
end
NO_OP_ATTRIBUTE = NoOpAttribute.new
# An attribute which requires manual (de)serialization to/from what we get
# from the database. It is part of our backport (shim) of rails 4.2's
# attribute API. See `type_for_attribute` below.
class SerializedAttribute
def initialize(coder)
@coder = coder.respond_to?(:dump) ? coder : PaperTrail.serializer
end
def type_cast_for_database(value)
@coder.dump(value)
end
def type_cast_from_database(data)
@coder.load(data)
end
end
def type_for_attribute(attr_name)
serialized_attribute_types[attr_name.to_s] || NO_OP_ATTRIBUTE
end
def serialized_attribute_types
@attribute_types ||= Hash[serialized_attributes.map do |attr_name, coder|
[attr_name, SerializedAttribute.new(coder)]
end]
end
private :serialized_attribute_types
end
end
end
Version data entries
21 entries across 20 versions & 2 rubygems