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Contents
# frozen_string_literal: true
module Decidim
# This is a helper class in order to publish component and settings changes
# so that components can react to these changes and send notifications to users.
class SettingsChange
# Publishes a change to ActiveSupport::Notifications.
#
# component - The Decidim::Component where the changes have been applied.
# previous_settings - A Hash or a Decidim::SettingsManifest schema with the settings before changing them.
# current_settings - A Hash or a Decidim::SettingsManifest schema with the current settings.
def self.publish(component, previous_settings, current_settings)
ActiveSupport::Notifications.publish(
"decidim.settings_change.#{component.manifest_name}",
component_id: component.id,
previous_settings: previous_settings.to_h.deep_symbolize_keys,
current_settings: current_settings.to_h.deep_symbolize_keys
)
end
# Creates a subscription to setting changes.
#
# scope - The String manifest name of the component so it only receives relevant changes.
# block - The block to be executed when an event is received.
def self.subscribe(scope, &block)
ActiveSupport::Notifications.subscribe(/^decidim\.settings_change\.#{scope}/) do |_event_name, data|
block.call(data)
end
end
end
end
Version data entries
88 entries across 88 versions & 1 rubygems