Class: ActiveRecord::Coders::YAMLColumn
- Inherits:
-
Object
- Object
- ActiveRecord::Coders::YAMLColumn
- Defined in:
- lib/active_record/coders/yaml_column.rb
Overview
:nodoc:
Instance Attribute Summary collapse
-
#object_class ⇒ Object
Returns the value of attribute object_class.
Instance Method Summary collapse
- #assert_valid_value(obj, action:) ⇒ Object
- #dump(obj) ⇒ Object
-
#initialize(attr_name, object_class = Object) ⇒ YAMLColumn
constructor
A new instance of YAMLColumn.
- #load(yaml) ⇒ Object
Constructor Details
#initialize(attr_name, object_class = Object) ⇒ YAMLColumn
Returns a new instance of YAMLColumn.
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# File 'lib/active_record/coders/yaml_column.rb', line 10 def initialize(attr_name, object_class = Object) @attr_name = attr_name @object_class = object_class check_arity_of_constructor end |
Instance Attribute Details
#object_class ⇒ Object
Returns the value of attribute object_class.
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# File 'lib/active_record/coders/yaml_column.rb', line 8 def object_class @object_class end |
Instance Method Details
#assert_valid_value(obj, action:) ⇒ Object
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# File 'lib/active_record/coders/yaml_column.rb', line 34 def assert_valid_value(obj, action:) unless obj.nil? || obj.is_a?(object_class) raise SerializationTypeMismatch, "can't #{action} `#{@attr_name}`: was supposed to be a #{object_class}, but was a #{obj.class}. -- #{obj.inspect}" end end |
#dump(obj) ⇒ Object
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# File 'lib/active_record/coders/yaml_column.rb', line 16 def dump(obj) return if obj.nil? assert_valid_value(obj, action: "dump") YAML.dump obj end |
#load(yaml) ⇒ Object
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# File 'lib/active_record/coders/yaml_column.rb', line 23 def load(yaml) return object_class.new if object_class != Object && yaml.nil? return yaml unless yaml.is_a?(String) && /^---/.match?(yaml) obj = yaml_load(yaml) assert_valid_value(obj, action: "load") obj ||= object_class.new if object_class != Object obj end |