Module: Cistern::Attributes::InstanceMethods
- Included in:
- Collection, Model, Singular
- Defined in:
- lib/cistern/attributes.rb
Instance Method Summary collapse
- #_dump(level) ⇒ Object
- #attributes ⇒ Object
- #attributes=(attributes) ⇒ Object
- #changed ⇒ Object
- #dirty? ⇒ Boolean
- #dirty_attributes ⇒ Object
- #dup ⇒ Object
- #identity ⇒ Object
- #identity=(new_identity) ⇒ Object
- #merge_attributes(new_attributes = {}) ⇒ Object
- #new_record? ⇒ Boolean
- #read_attribute(name) ⇒ Object
-
#requires(*args) ⇒ Object
check that the attributes specified in args exist and is not nil.
- #requires_one(*args) ⇒ Object
- #write_attribute(name, value) ⇒ Object
Instance Method Details
#_dump(level) ⇒ Object
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# File 'lib/cistern/attributes.rb', line 117 def _dump(level) Marshal.dump(attributes) end |
#attributes ⇒ Object
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# File 'lib/cistern/attributes.rb', line 159 def attributes @attributes ||= {} end |
#attributes=(attributes) ⇒ Object
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# File 'lib/cistern/attributes.rb', line 163 def attributes=(attributes) @attributes = attributes end |
#changed ⇒ Object
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# File 'lib/cistern/attributes.rb', line 251 def changed @changes ||= {} end |
#dirty? ⇒ Boolean
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# File 'lib/cistern/attributes.rb', line 243 def dirty? changed.any? end |
#dirty_attributes ⇒ Object
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# File 'lib/cistern/attributes.rb', line 247 def dirty_attributes changed.inject({}) { |r,(k,(_,v))| r.merge(k => v) } end |
#dup ⇒ Object
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# File 'lib/cistern/attributes.rb', line 167 def dup copy = super copy.attributes= copy.attributes.dup copy end |
#identity ⇒ Object
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# File 'lib/cistern/attributes.rb', line 173 def identity send(self.class.instance_variable_get('@identity')) end |
#identity=(new_identity) ⇒ Object
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# File 'lib/cistern/attributes.rb', line 177 def identity=(new_identity) send("#{self.class.instance_variable_get('@identity')}=", new_identity) end |
#merge_attributes(new_attributes = {}) ⇒ Object
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# File 'lib/cistern/attributes.rb', line 181 def merge_attributes(new_attributes = {}) protected_methods = (Cistern::Model.instance_methods - [:connection, :identity, :collection]) ignored_attributes = self.class.ignored_attributes class_attributes = self.class.attributes class_aliases = self.class.aliases new_attributes.each do |_key, value| string_key = _key.kind_of?(String) ? _key : _key.to_s symbol_key = case _key when String _key.to_sym when Symbol _key else string_key.to_sym end # find nested paths value.is_a?(::Hash) && class_attributes.each do |name, | if [:squash] && [:squash].first == string_key send("#{name}=", {symbol_key => value}) end end unless ignored_attributes.include?(symbol_key) if class_aliases.has_key?(symbol_key) class_aliases[symbol_key].each do |aliased_key| send("#{aliased_key}=", value) end end assignment_method = "#{string_key}=" if !protected_methods.include?(symbol_key) && self.respond_to?(assignment_method, true) send(assignment_method, value) end end end changed.clear self end |
#new_record? ⇒ Boolean
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# File 'lib/cistern/attributes.rb', line 222 def new_record? !identity end |
#read_attribute(name) ⇒ Object
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# File 'lib/cistern/attributes.rb', line 121 def read_attribute(name) = self.class.attributes[name] || {} # record the attribute was accessed self.class.attributes[name.to_s.to_sym][:coverage_hits] += 1 rescue nil default = [:default] unless default.nil? default = Marshal.load(Marshal.dump(default)) end attributes.fetch(name.to_s.to_sym, default) end |
#requires(*args) ⇒ Object
check that the attributes specified in args exist and is not nil
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# File 'lib/cistern/attributes.rb', line 227 def requires(*args) missing = missing_attributes(args) if missing.length == 1 raise(ArgumentError, "#{missing.first} is required for this operation") elsif missing.any? raise(ArgumentError, "#{missing[0...-1].join(", ")} and #{missing[-1]} are required for this operation") end end |
#requires_one(*args) ⇒ Object
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# File 'lib/cistern/attributes.rb', line 236 def requires_one(*args) missing = missing_attributes(args) if missing.length == args.length raise(ArgumentError, "#{missing[0...-1].join(", ")} or #{missing[-1]} are required for this operation") end end |
#write_attribute(name, value) ⇒ Object
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# File 'lib/cistern/attributes.rb', line 135 def write_attribute(name, value) = self.class.attributes[name] || {} transform = Cistern::Attributes.transforms[[:squash] ? :squash : :none] || Cistern::Attributes.default_transform parser = Cistern::Attributes.parsers[[:type]] || [:parser] || Cistern::Attributes.default_parser transformed = transform.call(name, value, ) new_value = parser.call(transformed, ) attribute = name.to_s.to_sym previous_value = attributes[attribute] attributes[attribute] = new_value changed!(attribute, previous_value, new_value) new_value end |