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Diffstat (limited to 'app/services/projects/count_service.rb')
-rw-r--r-- | app/services/projects/count_service.rb | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/app/services/projects/count_service.rb b/app/services/projects/count_service.rb new file mode 100644 index 00000000000..5e633c37bf8 --- /dev/null +++ b/app/services/projects/count_service.rb @@ -0,0 +1,43 @@ +module Projects + # Base class for the various service classes that count project data (e.g. + # issues or forks). + class CountService + def initialize(project) + @project = project + end + + def relation_for_count + raise( + NotImplementedError, + '"relation_for_count" must be implemented and return an ActiveRecord::Relation' + ) + end + + def count + Rails.cache.fetch(cache_key) { uncached_count } + end + + def refresh_cache + Rails.cache.write(cache_key, uncached_count) + end + + def uncached_count + relation_for_count.count + end + + def delete_cache + Rails.cache.delete(cache_key) + end + + def cache_key_name + raise( + NotImplementedError, + '"cache_key_name" must be implemented and return a String' + ) + end + + def cache_key + ['projects', @project.id, cache_key_name] + end + end +end |