Module: DeltacloudVM::Client::Helpers::Model

Included in:
Base, Connection, ErrorResponse
Defined in:
lib/deltacloud_vm/client/helpers/model_helper.rb

Instance Method Summary collapse

Instance Method Details

#error(name = nil) ⇒ Object

Syntax sugar method for retrieving various Client exception classes.

  • name -> Exception class name in underscore

NOTE: If name is ‘nil’ the default Error exception

will be returned



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# File 'lib/deltacloud_vm/client/helpers/model_helper.rb', line 40

def error(name=nil)
  model(name || :error)
end

#from_collection(model_name, collection_body) ⇒ Object

Checks if current @connection support model_name and then convert HTTP response to a Ruby model

  • model_name -> A class name in underscore form

  • collection_body -> HTTP body of collection



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# File 'lib/deltacloud_vm/client/helpers/model_helper.rb', line 50

def from_collection(model_name, collection_body)
  must_support!(model_name)
  model(model_name.to_s.singularize).from_collection(
    self,
    collection_body
  )
end

#from_resource(model_name, resource_body) ⇒ Object

Check if the collection for given model is supported in current @connection and then parse/convert resource XML to a Ruby class



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# File 'lib/deltacloud_vm/client/helpers/model_helper.rb', line 62

def from_resource(model_name, resource_body)
  must_support!(model_name.to_s.pluralize)
  model(model_name).convert(self, resource_body)
end

#model(name) ⇒ Object

Retrieve the class straight from DeltacloudVM::Client model.

-name -> A class name in underscore form (:storage_volume)



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# File 'lib/deltacloud_vm/client/helpers/model_helper.rb', line 25

def model(name)
  if name.nil? or (!name.nil? and name.empty?)
    raise error.new("The model name can't be blank")
  end
  DeltacloudVM::Client.const_get(name.to_s.camelize)
end