28 lines
762 B
Ruby
28 lines
762 B
Ruby
# This is meant to be used by plugins to trigger and listen to events
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# So we can execute code when things happen.
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class DiscourseEvent
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# Defaults to a hash where default values are empty sets.
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def self.events
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@events ||= Hash.new { |hash, key| hash[key] = Set.new }
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end
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def self.trigger(event_name, *params)
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events[event_name].each do |event|
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event.call(*params)
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end
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end
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def self.on(event_name, &block)
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if event_name == :site_setting_saved
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Discourse.deprecate("The :site_setting_saved event is deprecated. Please use :site_setting_changed instead", since: "2.3.0beta8", drop_from: "2.4")
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end
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events[event_name] << block
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end
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def self.off(event_name, &block)
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events[event_name].delete(block)
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end
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end
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