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# frozen_string_literal: true
module Gitlab
module CycleAnalytics
class BaseEventFetcher
include BaseQuery
include GroupProjectsProvider
attr_reader :projections, :query, :stage, :order, :options
MAX_EVENTS = 50
def initialize(stage:, options:)
@stage = stage
@options = options
end
def fetch
update_author!
event_result.map do |event|
serialize(event) if has_permission?(event['id'])
end.compact
end
def order
@order || default_order
end
private
def update_author!
return unless event_result.any? && event_result.first['author_id']
Updater.update!(event_result, from: 'author_id', to: 'author', klass: User)
end
def event_result
@event_result ||= ActiveRecord::Base.connection.exec_query(events_query.to_sql).to_a
end
def events_query
diff_fn = subtract_datetimes_diff(base_query, options[:start_time_attrs], options[:end_time_attrs])
base_query.project(extract_diff_epoch(diff_fn).as('total_time'), *projections).order(order.desc).take(MAX_EVENTS)
end
def default_order
[options[:start_time_attrs]].flatten.first
end
def serialize(_event)
raise NotImplementedError.new("Expected #{self.name} to implement serialize(event)")
end
def has_permission?(id)
allowed_ids.nil? || allowed_ids.include?(id.to_i)
end
def allowed_ids
@allowed_ids ||= allowed_ids_finder_class
.new(options[:current_user], allowed_ids_source)
.execute.where(id: event_result_ids).pluck(:id)
end
def event_result_ids
event_result.map { |event| event['id'] }
end
def allowed_ids_source
group ? { group_id: group.id, include_subgroups: true } : { project_id: project.id }
end
def serialization_context
{}
end
end
end
end
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