Module: ActiveRecord::Materialized::ChangeSource

Defined in:
lib/activerecord/materialized/change_source.rb

Overview

The change sources a view can declare. :callbacks (the default) installs the built-in ActiveRecord commit-callback tracker on depends_on models; :none installs no callbacks and expects changes through the public ingestion API from an external adapter.

Constant Summary collapse

CALLBACKS = 
:callbacks
NONE = 
:none
NAMES = 
[CALLBACKS, NONE].freeze

Class Method Summary collapse

Class Method Details

.cast(source) ⇒ Object

Validates and normalizes a change-source name, raising on an unknown one so a typo fails loudly at definition/configuration time instead of silently disabling all maintenance for the view.

Raises:

  • (ArgumentError) 


17
18
19
20
21
22
 
# File 'lib/activerecord/materialized/change_source.rb', line 17

def self.cast(source)
  name = source.to_sym
  return name if NAMES.include?(name)

  raise ArgumentError, "Unknown change source #{source.inspect} (expected one of #{NAMES.inspect})"
end