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40 lines
950 B
40 lines
950 B
# frozen_string_literal: true
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class Admin::Metrics::Measure::NewUsersMeasure < Admin::Metrics::Measure::BaseMeasure
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include Admin::Metrics::Measure::QueryHelper
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def key
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'new_users'
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end
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protected
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def perform_total_query
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User.where(created_at: time_period).count
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end
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def perform_previous_total_query
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User.where(created_at: previous_time_period).count
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end
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def sql_array
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[sql_query_string, { start_at: @start_at, end_at: @end_at }]
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end
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def sql_query_string
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<<~SQL.squish
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SELECT axis.*, (
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WITH new_users AS (
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SELECT users.id
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FROM users
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WHERE date_trunc('day', users.created_at)::date = axis.period
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)
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SELECT count(*) FROM new_users
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) AS value
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FROM (
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SELECT generate_series(date_trunc('day', :start_at::timestamp)::date, date_trunc('day', :end_at::timestamp)::date, interval '1 day') AS period
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) AS axis
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SQL
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end
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end
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