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|
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
|
