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93625ef07c
In #29169 we added a NULLS NOT DISTINCT option to the unique index on problem_check_trackers. This is to enforce uniqueness even when the target is NULL. (Postgres considers all NULLs to be distinct by default.) However, this only works in PG15. In PG13 it does nothing. This commit adds a default dummy string value __NULL__ to target. Since it's a string, PG13 will be able to correctly identify duplicate records.
96 lines
2.1 KiB
Ruby
96 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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class ProblemCheckTracker < ActiveRecord::Base
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validates :identifier, presence: true, uniqueness: { scope: :target }
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validates :blips, presence: true, numericality: { greater_than_or_equal_to: 0 }
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scope :failing, -> { where("last_problem_at = last_run_at") }
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scope :passing, -> { where("last_success_at = last_run_at") }
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def self.[](identifier, target = ProblemCheck::NO_TARGET)
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find_or_create_by(identifier:, target:)
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end
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def ready_to_run?
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next_run_at.blank? || next_run_at.past?
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end
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def failing?
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last_problem_at == last_run_at
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end
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def passing?
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last_success_at == last_run_at
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end
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def problem!(next_run_at: nil, details: {})
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now = Time.current
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update!(blips: blips + 1, details:, last_run_at: now, last_problem_at: now, next_run_at:)
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sound_the_alarm if sound_the_alarm?
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end
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def no_problem!(next_run_at: nil)
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reset
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silence_the_alarm
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end
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def reset(next_run_at: nil)
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now = Time.current
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update!(blips: 0, last_run_at: now, last_success_at: now, next_run_at:)
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end
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def check
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check = ProblemCheck[identifier]
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return check if check.present?
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silence_the_alarm
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destroy
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nil
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end
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private
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def sound_the_alarm?
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failing? && blips > check.max_blips
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end
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def sound_the_alarm
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admin_notice.create_with(
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priority: check.priority,
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details: details.merge(target:),
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).find_or_create_by(identifier:)
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end
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def silence_the_alarm
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admin_notice.where(identifier:).delete_all
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end
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def admin_notice
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AdminNotice.problem.where("details->>'target' = ?", target || ProblemCheck::NO_TARGET)
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end
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end
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# == Schema Information
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#
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# Table name: problem_check_trackers
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#
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# id :bigint not null, primary key
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# identifier :string not null
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# blips :integer default(0), not null
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# last_run_at :datetime
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# next_run_at :datetime
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# last_success_at :datetime
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# last_problem_at :datetime
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# details :json
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# target :string default("__NULL__")
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#
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# Indexes
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#
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# index_problem_check_trackers_on_identifier_and_target (identifier,target) UNIQUE
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#
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