mirror of
https://github.com/discourse/discourse.git
synced 2024-11-24 13:18:33 +08:00
118 lines
3.2 KiB
Ruby
118 lines
3.2 KiB
Ruby
# frozen_string_literal: true
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class Draft < ActiveRecord::Base
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NEW_TOPIC ||= 'new_topic'
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NEW_PRIVATE_MESSAGE ||= 'new_private_message'
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EXISTING_TOPIC ||= 'topic_'
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def self.set(user, key, sequence, data)
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if d = find_draft(user, key)
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return if d.sequence > sequence
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DB.exec(<<~SQL, id: d.id, sequence: sequence, data: data)
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UPDATE drafts
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SET sequence = :sequence
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, data = :data
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, revisions = revisions + 1
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WHERE id = :id
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SQL
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else
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Draft.create!(user_id: user.id, draft_key: key, data: data, sequence: sequence)
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end
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true
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end
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def self.get(user, key, sequence)
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d = find_draft(user, key)
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d.data if d && d.sequence == sequence
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end
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def self.clear(user, key, sequence)
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d = find_draft(user, key)
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d.destroy if d && d.sequence <= sequence
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end
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def self.find_draft(user, key)
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if user.is_a?(User)
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find_by(user_id: user.id, draft_key: key)
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else
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find_by(user_id: user, draft_key: key)
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end
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end
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def self.stream(opts = nil)
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opts ||= {}
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user_id = opts[:user].id
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offset = (opts[:offset] || 0).to_i
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limit = (opts[:limit] || 30).to_i
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# JOIN of topics table based on manipulating draft_key seems imperfect
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builder = DB.build <<~SQL
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SELECT
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d.*, t.title, t.id topic_id, t.archetype,
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t.category_id, t.closed topic_closed, t.archived topic_archived,
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pu.username, pu.name, pu.id user_id, pu.uploaded_avatar_id, pu.username_lower,
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du.username draft_username, NULL as raw, NULL as cooked, NULL as post_number
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FROM drafts d
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LEFT JOIN LATERAL json_extract_path_text (d.data::json, 'postId') postId ON TRUE
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LEFT JOIN posts p ON postId :: BIGINT = p.id
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LEFT JOIN topics t ON
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CASE
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WHEN d.draft_key LIKE '%' || '#{EXISTING_TOPIC}' || '%'
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THEN CAST(replace(d.draft_key, '#{EXISTING_TOPIC}', '') AS INT)
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ELSE 0
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END = t.id
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JOIN users pu on pu.id = COALESCE(p.user_id, t.user_id, d.user_id)
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JOIN users du on du.id = #{user_id}
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/*where*/
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/*order_by*/
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/*offset*/
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/*limit*/
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SQL
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builder
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.where('d.user_id = :user_id', user_id: user_id.to_i)
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.order_by('d.updated_at desc')
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.offset(offset)
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.limit(limit)
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.query
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end
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def self.cleanup!
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DB.exec(<<~SQL)
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DELETE FROM drafts
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WHERE sequence < (
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SELECT MAX(s.sequence)
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FROM draft_sequences s
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WHERE s.draft_key = drafts.draft_key
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AND s.user_id = drafts.user_id
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)
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SQL
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# remove old drafts
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delete_drafts_older_than_n_days = SiteSetting.delete_drafts_older_than_n_days.days.ago
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Draft.where("updated_at < ?", delete_drafts_older_than_n_days).destroy_all
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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: drafts
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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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# data :text not null
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# created_at :datetime not null
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# updated_at :datetime not null
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# sequence :integer default(0), not null
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# revisions :integer default(1), not null
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#
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# Indexes
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#
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# index_drafts_on_user_id_and_draft_key (user_id,draft_key)
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#
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