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module ReserveUsernames::Callbacks
def self.included(base)
base.class_eval do
around_create :create_reservation
around_destroy :destroy_reservation
protected
def create_reservation
if username
Rails.logger.info("ReserveUsernames - creating reservation for username '#{username}'.")
ru = ReservedUsername.create(:username => username, :reserved_by => owner_string)
ru.encode
unless ru.persisted?
if has_errors?(ru)
Rails.logger.error("ReserveUsernames - failed to reserve username (#{ru.errors.error_messages}).")
return false
else
Rails.logger.error("ReserveUsernames - failed to reserve username (remote error).")
raise RuntimeError.new('Failed to reserve username. (remote username reservation error)')
end
end
end
yield
if self.persisted?
ru.confirmed = true
ru.save
return false if has_errors?(ru)
end
end
def destroy_reservation
ru = ReservedUsername.find(username)
ru.deleted = true
ru.save
yield
if self.destroyed?
ReservedUsername.delete(username)
end
rescue ActiveResource::ResourceNotFound
end
def username
address ? address.split('@').first : nil
end
#
# a label to identify the owner
#
def owner_string
if user && user.id
user.id
else
username
end
end
def has_errors?(record)
if record.errors.any?
record.errors.each do |attr, msg|
Rails.logger.error("ReserveUsernames - REMOTE ERROR #{attr}: #{msg}")
self.errors.add(attr, msg + " (remote username reservation error)")
end
true
else
false
end
end
end
end
end
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