57 lines
1.5 KiB
Ruby
57 lines
1.5 KiB
Ruby
# frozen_string_literal: true
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class DraftSequence < ActiveRecord::Base
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def self.next!(user, key)
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user_id = user
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user_id = user.id unless user.is_a?(Integer)
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return 0 if invalid_user_id?(user_id)
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h = { user_id: user_id, draft_key: key }
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c = DraftSequence.find_by(h)
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c ||= DraftSequence.new(h)
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c.sequence ||= 0
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c.sequence += 1
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c.save!
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DB.exec("DELETE FROM drafts WHERE user_id = :user_id AND draft_key = :draft_key AND sequence < :sequence", draft_key: key, user_id: user_id, sequence: c.sequence)
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c.sequence
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end
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def self.current(user, key)
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return nil unless user
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user_id = user
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user_id = user.id unless user.is_a?(Integer)
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return nil if invalid_user_id?(user_id)
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# perf critical path
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r, _ = DB.query_single('select sequence from draft_sequences where user_id = ? and draft_key = ?', user_id, key)
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r.to_i
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end
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cattr_accessor :plugin_ignore_draft_sequence_callbacks
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self.plugin_ignore_draft_sequence_callbacks = {}
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def self.invalid_user_id?(user_id)
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user_id < 0 || self.plugin_ignore_draft_sequence_callbacks.any? do |plugin, callback|
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plugin.enabled? ? callback.call(user_id) : false
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end
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end
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private_class_method :invalid_user_id?
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end
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# == Schema Information
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#
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# Table name: draft_sequences
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#
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# id :integer not null, primary key
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# user_id :integer not null
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# draft_key :string not null
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# sequence :bigint not null
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#
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# Indexes
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#
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# index_draft_sequences_on_user_id_and_draft_key (user_id,draft_key) UNIQUE
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#
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