gitlab-org--gitlab-foss/lib/gitlab/issuables_count_for_state.rb

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module Gitlab
# Class for counting and caching the number of issuables per state.
class IssuablesCountForState
# The name of the RequestStore cache key.
CACHE_KEY = :issuables_count_for_state
# The state values that can be safely casted to a Symbol.
STATES = %w[opened closed merged all].freeze
# finder - The finder class to use for retrieving the issuables.
def initialize(finder)
@finder = finder
@cache =
if RequestStore.active?
RequestStore[CACHE_KEY] ||= initialize_cache
else
initialize_cache
end
end
def for_state_or_opened(state = nil)
self[state || :opened]
end
# Returns the count for the given state.
#
# state - The name of the state as either a String or a Symbol.
#
# Returns an Integer.
def [](state)
state = state.to_sym if cast_state_to_symbol?(state)
cache_for_finder[state] || 0
end
private
def cache_for_finder
@cache[@finder]
end
def cast_state_to_symbol?(state)
state.is_a?(String) && STATES.include?(state)
end
def initialize_cache
Hash.new { |hash, finder| hash[finder] = finder.count_by_state }
end
end
end