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whippy-edition/app/lib/admin/metrics/dimension/base_dimension.rb
2022-02-22 15:27:08 +01:00

69 lines
1.1 KiB
Ruby

# frozen_string_literal: true
class Admin::Metrics::Dimension::BaseDimension
CACHE_TTL = 5.minutes.freeze
def self.with_params?
false
end
attr_reader :loaded
alias loaded? loaded
def initialize(start_at, end_at, limit, params)
@start_at = start_at&.to_datetime
@end_at = end_at&.to_datetime
@limit = limit&.to_i
@params = params
@loaded = false
end
def key
raise NotImplementedError
end
def cache_key
["metrics/dimension/#{key}", @start_at, @end_at, @limit, canonicalized_params].join(';')
end
def data
load
end
def self.model_name
self.class.name
end
def read_attribute_for_serialization(key)
send(key) if respond_to?(key)
end
protected
def load
unless loaded?
@values = Rails.cache.fetch(cache_key, expires_in: CACHE_TTL) { perform_query }
@loaded = true
end
@values
end
def perform_query
raise NotImplementedError
end
def time_period
(@start_at..@end_at)
end
def params
{}
end
def canonicalized_params
params.to_h.to_a.sort_by { |k, _v| k.to_s }.map { |k, v| "#{k}=#{v}" }.join(';')
end
end