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Contents
module Acfs
# @api private
#
# Describes a CRUD operation. Handle request creation and response
# processing as well as error handling and stubbing.
#
class Operation
attr_reader :action, :params, :resource, :data, :callback
delegate :service, to: :resource
delegate :call, to: :callback
def initialize(resource, action, opts = {}, &block)
@resource = resource
@action = action.to_sym
# Operations can be delayed so dup params and data to avoid
# later in-place changes by modifying passed hash
@params = (opts[:params] || {}).dup
@data = (opts[:data] || {}).dup
@callback = block
end
def single?
[:read, :update, :delete].include? action
end
def synchronous?
[:update, :delete, :create].include? action
end
def id
# TODO
@id ||= params.delete(:id) || data[:id]
end
def full_params
id ? params.merge(id: id) : params
end
def url
single? ? resource.url(id) : resource.url
end
def method
{ read: :get, list: :get, update: :put, create: :post, delete: :delete }[action]
end
def request
request = ::Acfs::Request.new url, method: method, params: params, data: data
request.on_complete do |response|
handle_failure response unless response.success?
callback.call response.data
end
request
end
def handle_failure(response)
case response.code
when 404
raise ::Acfs::ResourceNotFound.new response: response
when 422
raise ::Acfs::InvalidResource.new response: response, errors: response.data.try(:[], 'errors')
else
raise ::Acfs::ErroneousResponse.new response: response
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems