cebfe053a8
1. Look for merge requests (and issues that they close) that have been deployed to production in the last X days (where X is given by the `from` parameter). 2. Cycle analytics queries only operate on this fitered set of merge requests and issues.
99 lines
3.9 KiB
Ruby
99 lines
3.9 KiB
Ruby
class CycleAnalytics
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include DatabaseMedian
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def initialize(project, from:)
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@project = project
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@from = from
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@summary = Summary.new(project, from: from)
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end
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def summary
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@summary
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end
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def issue
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calculate_metric!(:issue,
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TableReferences.issues[:created_at],
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[TableReferences.issue_metrics[:first_associated_with_milestone_at],
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TableReferences.issue_metrics[:first_added_to_board_at]])
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end
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def plan
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calculate_metric!(:plan,
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[TableReferences.issue_metrics[:first_associated_with_milestone_at],
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TableReferences.issue_metrics[:first_added_to_board_at]],
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TableReferences.issue_metrics[:first_mentioned_in_commit_at])
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end
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def code
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calculate_metric!(:code,
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TableReferences.issue_metrics[:first_mentioned_in_commit_at],
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TableReferences.merge_requests[:created_at])
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end
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def test
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calculate_metric!(:test,
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TableReferences.merge_request_metrics[:latest_build_started_at],
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TableReferences.merge_request_metrics[:latest_build_finished_at])
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end
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def review
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calculate_metric!(:review,
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TableReferences.merge_requests[:created_at],
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TableReferences.merge_request_metrics[:merged_at])
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end
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def staging
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calculate_metric!(:staging,
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TableReferences.merge_request_metrics[:merged_at],
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TableReferences.merge_request_metrics[:first_deployed_to_production_at])
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end
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def production
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calculate_metric!(:production,
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TableReferences.issues[:created_at],
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TableReferences.merge_request_metrics[:first_deployed_to_production_at])
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end
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private
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def calculate_metric!(name, start_time_attrs, end_time_attrs)
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cte_table = Arel::Table.new("cte_table_for_#{name}")
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# Add a `SELECT` for (end_time - start-time), and add an alias for it.
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# Note: We use COALESCE to pick up the first non-null column for end_time / start_time.
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query = Arel::Nodes::As.new(
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cte_table,
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base_query.project(
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Arel::Nodes::Subtraction.new(
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Arel::Nodes::NamedFunction.new("COALESCE", Array.wrap(end_time_attrs)),
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Arel::Nodes::NamedFunction.new("COALESCE", Array.wrap(start_time_attrs))
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).as(name.to_s)))
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query = median_datetime(cte_table, query, name)
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median = ActiveRecord::Base.connection.execute(query.to_sql).first['median']
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median.to_f if median.present?
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end
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# Join table with a row for every <issue,merge_request> pair (where the merge request
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# closes the given issue) with issue and merge request metrics included. The metrics
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# are loaded with an inner join, so issues / merge requests without metrics are
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# automatically excluded.
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def base_query
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arel_table = TableReferences.merge_requests_closing_issues
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# Load issues
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query = arel_table.join(TableReferences.issues).on(TableReferences.issues[:id].eq(arel_table[:issue_id])).
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join(TableReferences.issue_metrics).on(TableReferences.issues[:id].eq(TableReferences.issue_metrics[:issue_id])).
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where(TableReferences.issues[:project_id].eq(@project.id)).
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where(TableReferences.issues[:deleted_at].eq(nil)).
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where(TableReferences.issues[:created_at].gteq(@from))
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# Load merge_requests
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query = query.join(TableReferences.merge_requests, Arel::Nodes::OuterJoin).on(TableReferences.merge_requests[:id].eq(arel_table[:merge_request_id])).
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join(TableReferences.merge_request_metrics).on(TableReferences.merge_requests[:id].eq(TableReferences.merge_request_metrics[:merge_request_id]))
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# Limit to merge requests that have been deployed to production after `@from`
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query.where(TableReferences.merge_request_metrics[:first_deployed_to_production_at].gteq(@from))
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end
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end
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