32 lines
1 KiB
Ruby
32 lines
1 KiB
Ruby
class Projects::CycleAnalyticsController < Projects::ApplicationController
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def show
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@metrics = {
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issue: issue
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}
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end
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private
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def issue
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query = <<-HEREDOC
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WITH ordered_data AS (
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SELECT extract(milliseconds FROM (COALESCE(first_associated_with_milestone_at, first_added_to_board_at) - issues.created_at)) AS data_point,
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row_number() over (order by (COALESCE(first_associated_with_milestone_at, first_added_to_board_at) - issues.created_at)) as row_id
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FROM issues
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INNER JOIN issue_metrics ON issue_metrics.issue_id = issues.id
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WHERE COALESCE(first_associated_with_milestone_at, first_added_to_board_at) IS NOT NULL
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),
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ct AS (
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SELECT count(1) AS ct
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FROM ordered_data
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)
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SELECT avg(data_point) AS median
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FROM ordered_data
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WHERE row_id between (select ct from ct)/2.0 and (select ct from ct)/2.0 + 1;
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HEREDOC
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ActiveRecord::Base.connection.execute(query).to_a.first['median']
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end
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end
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