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Contents
module DataMapper
module Resource
class State
# a not-persisted/modifiable resource
class Transient < State
def get(subject, *args)
set_default_value(subject)
super
end
def set(subject, value)
track(subject)
super
end
def delete
self
end
def commit
set_child_keys
set_default_values
return self unless valid_attributes?
create_resource
set_repository
add_to_identity_map
Clean.new(resource)
end
def rollback
self
end
def original_attributes
@original_attributes ||= {}
end
private
def repository
@repository ||= model.repository
end
def set_default_values
(properties | relationships).each do |subject|
set_default_value(subject)
end
end
def set_default_value(subject)
return if subject.loaded?(resource) || !subject.default?
set(subject, subject.default_for(resource))
end
def track(subject)
original_attributes[subject] = nil
end
def create_resource
repository.create([ resource ])
end
def set_repository
resource.instance_variable_set(:@_repository, repository)
end
def valid_attributes?
properties.all? do |property|
value = get(property)
property.serial? && value.nil? || property.valid?(value)
end
end
end # class Transient
end # class State
end # module Resource
end # module DataMapper
Version data entries
8 entries across 8 versions & 1 rubygems