really faster stats by precomputing some of them
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5 changed files with 143 additions and 27 deletions
91
app/models/stat.rb
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91
app/models/stat.rb
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# == Schema Information
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#
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# Table name: stats
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#
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# id :bigint not null, primary key
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# dossiers_brouillon :bigint default(0)
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# dossiers_cumulative :jsonb not null
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# dossiers_depose_avant_30_jours :bigint default(0)
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# dossiers_deposes_entre_60_et_30_jours :bigint default(0)
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# dossiers_en_construction :bigint default(0)
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# dossiers_en_instruction :bigint default(0)
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# dossiers_in_the_last_4_months :jsonb not null
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# dossiers_not_brouillon :bigint default(0)
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# dossiers_termines :bigint default(0)
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# created_at :datetime not null
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# updated_at :datetime not null
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#
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class Stat < ApplicationRecord
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class << self
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def update_stats
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states = dossiers_states
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stat = Stat.first || Stat.new
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stat.update(
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dossiers_en_construction: states['en_construction'],
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dossiers_en_instruction: states['en_instruction'],
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dossiers_brouillon: states['brouillon'],
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dossiers_depose_avant_30_jours: states['dossiers_depose_avant_30_jours'],
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dossiers_deposes_entre_60_et_30_jours: states['dossiers_deposes_entre_60_et_30_jours'],
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dossiers_not_brouillon: states['not_brouillon'],
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dossiers_termines: states['termines'],
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dossiers_cumulative: cumulative_hash(Dossier.state_not_brouillon, :en_construction_at),
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dossiers_in_the_last_4_months: last_four_months_hash(Dossier.state_not_brouillon, :en_construction_at)
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)
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end
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private
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def dossiers_states
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query = <<-EOF
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SELECT
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COUNT(*) FILTER ( WHERE state != 'brouillon' ) AS "not_brouillon",
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COUNT(*) FILTER ( WHERE state != 'brouillon' and en_construction_at BETWEEN :one_month_ago AND :now ) AS "dossiers_depose_avant_30_jours",
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COUNT(*) FILTER ( WHERE state != 'brouillon' and en_construction_at BETWEEN :two_months_ago AND :one_month_ago ) AS "dossiers_deposes_entre_60_et_30_jours",
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COUNT(*) FILTER ( WHERE state = 'brouillon' ) AS "brouillon",
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COUNT(*) FILTER ( WHERE state = 'en_construction' ) AS "en_construction",
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COUNT(*) FILTER ( WHERE state = 'en_instruction' ) AS "en_instruction",
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COUNT(*) FILTER ( WHERE state in ('accepte', 'refuse', 'sans_suite') ) AS "termines"
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FROM dossiers
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WHERE hidden_at IS NULL
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EOF
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sanitized_query = ActiveRecord::Base.sanitize_sql([
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query,
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now: Time.zone.now,
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one_month_ago: 1.month.ago,
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two_months_ago: 2.months.ago
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])
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Dossier.connection.select_all(sanitized_query).first
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end
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def last_four_months_hash(association, date_attribute)
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min_date = 3.months.ago.beginning_of_month.to_date
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association
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.where(date_attribute => min_date..max_date)
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.group("DATE_TRUNC('month', #{date_attribute})")
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.count
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.to_a
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.sort_by { |a| a[0] }
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.map { |e| [I18n.l(e.first, format: "%B %Y"), e.last] }
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end
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def cumulative_hash(association, date_attribute)
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sum = 0
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association
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.where("#{date_attribute} < ?", max_date)
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.group("DATE_TRUNC('month', #{date_attribute})")
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.count
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.to_a
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.sort_by { |a| a[0] }
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.map { |x, y| { x => (sum += y) } }
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.reduce({}, :merge)
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end
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def max_date
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Time.zone.now.beginning_of_month - 1.second
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end
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end
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end
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