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# frozen_string_literal: true
class MergeRequest::Metrics < ApplicationRecord
belongs_to :merge_request, inverse_of: :metrics
belongs_to :pipeline, class_name: 'Ci::Pipeline', foreign_key: :pipeline_id
belongs_to :latest_closed_by, class_name: 'User'
belongs_to :merged_by, class_name: 'User'
belongs_to :target_project, class_name: 'Project', inverse_of: :merge_requests
before_save :ensure_target_project_id
scope :merged_after, ->(date) { where(arel_table[:merged_at].gteq(date)) }
scope :merged_before, ->(date) { where(arel_table[:merged_at].lteq(date)) }
scope :with_valid_time_to_merge, -> { where(arel_table[:merged_at].gt(arel_table[:created_at])) }
scope :by_target_project, ->(project) { where(target_project_id: project) }
class << self
def time_to_merge_expression
Arel.sql('EXTRACT(epoch FROM SUM(AGE(merge_request_metrics.merged_at, merge_request_metrics.created_at)))')
end
def record!(mr)
sql = <<~SQL
INSERT INTO #{self.table_name} (merge_request_id, target_project_id, updated_at, created_at)
VALUES (#{mr.id}, #{mr.target_project_id}, NOW(), NOW())
ON CONFLICT (merge_request_id)
DO UPDATE SET
target_project_id = EXCLUDED.target_project_id,
updated_at = NOW()
SQL
connection.execute(sql)
end
end
private
def ensure_target_project_id
self.target_project_id ||= merge_request.target_project_id
end
def self.total_time_to_merge
with_valid_time_to_merge
.pluck(time_to_merge_expression)
.first
end
end
MergeRequest::Metrics.prepend_mod_with('MergeRequest::Metrics')
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