55 lines
1.4 KiB
Ruby
55 lines
1.4 KiB
Ruby
# Copyright (C) 2012-2021 Zammad Foundation, http://zammad-foundation.org/
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module ApplicationModel::HasCache
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extend ActiveSupport::Concern
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included do
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before_create :cache_delete
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after_commit :cache_delete
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end
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def cache_update(other)
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cache_delete if respond_to?('cache_delete')
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other.cache_delete if other.respond_to?('cache_delete')
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ActiveSupport::CurrentAttributes.clear_all
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true
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end
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def cache_delete
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cache_keys = []
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# delete by id with attributes_with_association_ids caches
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cache_keys.push "#{self.class}::aws::#{id}"
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# delete caches of lookup_keys (e.g. id, name, email, login, number)
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self.class.lookup_keys.each do |lookup_key|
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cache_keys.push "#{self.class}::#{self[lookup_key]}"
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next if !saved_changes? || !saved_changes.key?(lookup_key)
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obsolete_lookup_key = saved_changes[lookup_key][0]
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cache_keys.push "#{self.class}::#{obsolete_lookup_key}"
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end
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cache_keys.each do |key|
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Cache.delete(key)
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end
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true
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end
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# methods defined here are going to extend the class, not the instance of it
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class_methods do
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def cache_set(data_id, data)
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key = "#{self}::#{data_id}"
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# cache for 4 hours max to lower impact of race conditions
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Cache.write(key, data, expires_in: 4.hours)
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end
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def cache_get(data_id)
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key = "#{self}::#{data_id}"
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Cache.read(key)
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end
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end
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end
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