v1.0.2

Adds Renewal Preview endpoint (See: http://docs.chargify.com/api-renewal-preview)

v1.0.0

• Chargify::Subscription.charge now returns an ActiveResource Charge object. In the case of an error, the Charge object will have errors, and you will not have to rescue an HTTP 422.
• Adds new Chargify::Migration and Chargify::Migration::Preview resources.

subscription = Chargify::Subscription.find_by_customer_reference('marky-mark')

# Chargify::Migration
migration = subscription.migrate(:product_handle => "basic-plan")

migration = Chargify::Migration.create(:subscription_id => subscription.id, :product_handle => "basic-plan")

# Chargify::Migration::Preview
preview = Chargify::Migration::Preview.create(:subscription_id => subscription.id, :product_handle => "basic-plan")

preview = Chargify::Migration.preview(:subscription_id => subscription.id, :product_handle => "basic-plan")

Error handling looks like:

migration = subscription.migrate(:product_handle => "non-existent-plan")
migration.errors.full_messages
# => ["Invalid Product"]

preview = Chargify::Migration.preview(:subscription_id => subscription.id, :product_handle => "non-existent-plan")
preview.errors.full_messages
# => ["Product must be specified"]

See examples/migrations.rb and specs for more details.