Class: Logical::Naf::Unpickler
- Inherits:
-
Object
- Object
- Logical::Naf::Unpickler
- Includes:
- Af::Application::Component
- Defined in:
- app/models/logical/naf/unpickler.rb
Instance Attribute Summary collapse
-
#context ⇒ Object
readonly
Returns the value of attribute context.
-
#input_version ⇒ Object
readonly
Returns the value of attribute input_version.
-
#preservables ⇒ Object
readonly
Returns the value of attribute preservables.
-
#preserves ⇒ Object
readonly
Returns the value of attribute preserves.
-
#references ⇒ Object
readonly
Returns the value of attribute references.
Instance Method Summary collapse
- #cache_all_models(model) ⇒ Object
- #generic_unpickle(model, preserve, id_method_name = :id) ⇒ Object
-
#initialize(preserves, preservables, input_version) ⇒ Unpickler
constructor
A new instance of Unpickler.
- #reconstitute ⇒ Object
- #retrieve_reference(reference) ⇒ Object
Constructor Details
#initialize(preserves, preservables, input_version) ⇒ Unpickler
Returns a new instance of Unpickler.
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# File 'app/models/logical/naf/unpickler.rb', line 12 def initialize(preserves, preservables, input_version) @preserves = preserves @preservables = preservables @input_version = input_version @references = {} @context = {} end |
Instance Attribute Details
#context ⇒ Object (readonly)
Returns the value of attribute context.
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# File 'app/models/logical/naf/unpickler.rb', line 6 def context @context end |
#input_version ⇒ Object (readonly)
Returns the value of attribute input_version.
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# File 'app/models/logical/naf/unpickler.rb', line 6 def input_version @input_version end |
#preservables ⇒ Object (readonly)
Returns the value of attribute preservables.
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# File 'app/models/logical/naf/unpickler.rb', line 6 def preservables @preservables end |
#preserves ⇒ Object (readonly)
Returns the value of attribute preserves.
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# File 'app/models/logical/naf/unpickler.rb', line 6 def preserves @preserves end |
#references ⇒ Object (readonly)
Returns the value of attribute references.
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# File 'app/models/logical/naf/unpickler.rb', line 6 def references @references end |
Instance Method Details
#cache_all_models(model) ⇒ Object
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# File 'app/models/logical/naf/unpickler.rb', line 20 def cache_all_models(model) references.merge!(Hash[model.all.map do |m| logger.detail "caching: #{m.inspect}" [{ association_model_name: model.name, association_value: m.id }, m] end ]) end |
#generic_unpickle(model, preserve, id_method_name = :id) ⇒ Object
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# File 'app/models/logical/naf/unpickler.rb', line 32 def generic_unpickle(model, preserve, id_method_name = :id) if references[{ association_model_name: model.name, association_value: preserve[id_method_name.to_s] }] return {} end attributes = {} reference_methods = [] preserve.each do |method_name, value| id_method = method_name.to_sym unless id_method_name == id_method if value.is_a?(Hash) # this is a reference reference_instance = retrieve_reference(value) if reference_instance.nil? logger.error value.inspect logger.error { references.map{|r| r.inspect}.join("\n") } logger.error { references.map{ |r| r.inspect }.join("\n") } raise "couldn't find reference for #{value.inspect} in #{preserve.inspect}" end attributes[method_name.to_sym] = reference_instance.id else attributes[method_name.to_sym] = value end end end instance = model.new attributes.each do |method, value| instance.send("#{method}=".to_sym, value) end instance.save! logger.info "created #{instance.inspect}" return { { association_model_name: model.name, association_value: preserve[id_method_name.to_s] } => instance } end |
#reconstitute ⇒ Object
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# File 'app/models/logical/naf/unpickler.rb', line 70 def reconstitute preservables.each do |model| if model.respond_to?(:pre_unpickle) model.pre_unpickle(self) else cache_all_models(model) end end preservables.each do |model| model_preserves = preserves[model.name] if model_preserves model_preserves.each do |model_preserve| if model.respond_to?(:unpickle) additional_references = model.unpickle(model_preserve, self) else additional_references = generic_unpickle(model, model_preserve) end references.merge!(additional_references) end end end preservables.each do |model| model.post_unpickle(self) if model.respond_to?(:post_unpickle) end end |
#retrieve_reference(reference) ⇒ Object
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# File 'app/models/logical/naf/unpickler.rb', line 28 def retrieve_reference(reference) references[reference.symbolize_keys] end |