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fog--fog/lib/fog/linode/models/compute/disk.rb
Paul Thornthwaite 40c0cd7122 Make use of #persisted? method
In many places we were checking for identity which was the shorthand for
checking if the resource had been saved by the service.

The #persisted? method was added to show a clearer intent and also offer
minimal ActiveModel interface
2012-12-23 02:45:05 +00:00

62 lines
1.8 KiB
Ruby

require 'fog/core/model'
module Fog
module Compute
class Linode
class Disk < Fog::Model
identity :id
attribute :name
attribute :type
def save
requires :server
raise Fog::Errors::Error.new('Resaving an existing object may create a duplicate') if persisted?
@type, @image, @stack_script, @name, @password, @size =
attributes.values_at :type, :image, :stack_script, :name, :password, :size
create_disk
end
def destroy
requires :identity, :server
connection.linode_disk_delete server.id, id
end
def server
@server
end
private
def server=(server)
@server = server
end
def create_disk
case
when @image && @stack_script then create_disk_from_stack_script
when @image then create_disk_from_image
when @type then create_disk_type
else raise 'disk cannot be created'
end
end
def create_disk_type
self.id = connection.linode_disk_create(server.id, "#{@name}_#{@type}", @type, @size).body['DATA']['DiskID']
reload
end
def create_disk_from_image
disk = connection.linode_disk_createfromdistribution server.id, @image.id, "#{@name}_main", @size, @password
self.id = disk.body['DATA']['DiskID']
reload
end
def create_disk_from_stack_script
disk = connection.linode_disk_createfromstackscript(server.id, @stack_script.id, @image.id,
"#{@name}_main", @size, @password, @stack_script.options)
self.id = disk.body['DATA']['DiskID']
reload
end
end
end
end
end