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# File 'lib/motion-resource/base.rb', line 20
def instantiate(json)
if json.is_a?(Hash)
json = json.symbolize_keys
else
json = { primary_key => json.to_i }
end
raise ArgumentError, "No :#{primary_key} parameter given for #{self.name}.instantiate" unless json[primary_key]
klass = if json[:type]
begin
Object.const_get(json[:type].to_s)
rescue NameError
self
end
else
self
end
if result = klass.recall(json[primary_key])
result.update_attributes(json)
else
result = klass.new(json)
klass.remember(result.send(result.primary_key), result)
end
result.send(:instance_variable_set, "@new_record", false)
result
end
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