mirror of
https://github.com/discourse/discourse.git
synced 2024-11-27 19:53:44 +08:00
118 lines
3.2 KiB
Ruby
118 lines
3.2 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class Draft < ActiveRecord::Base
|
|
NEW_TOPIC ||= 'new_topic'
|
|
NEW_PRIVATE_MESSAGE ||= 'new_private_message'
|
|
EXISTING_TOPIC ||= 'topic_'
|
|
|
|
def self.set(user, key, sequence, data)
|
|
if d = find_draft(user, key)
|
|
return if d.sequence > sequence
|
|
|
|
DB.exec(<<~SQL, id: d.id, sequence: sequence, data: data)
|
|
UPDATE drafts
|
|
SET sequence = :sequence
|
|
, data = :data
|
|
, revisions = revisions + 1
|
|
WHERE id = :id
|
|
SQL
|
|
else
|
|
Draft.create!(user_id: user.id, draft_key: key, data: data, sequence: sequence)
|
|
end
|
|
|
|
true
|
|
end
|
|
|
|
def self.get(user, key, sequence)
|
|
d = find_draft(user, key)
|
|
d.data if d && d.sequence == sequence
|
|
end
|
|
|
|
def self.clear(user, key, sequence)
|
|
d = find_draft(user, key)
|
|
d.destroy if d && d.sequence <= sequence
|
|
end
|
|
|
|
def self.find_draft(user, key)
|
|
if user.is_a?(User)
|
|
find_by(user_id: user.id, draft_key: key)
|
|
else
|
|
find_by(user_id: user, draft_key: key)
|
|
end
|
|
end
|
|
|
|
def self.stream(opts = nil)
|
|
opts ||= {}
|
|
|
|
user_id = opts[:user].id
|
|
offset = (opts[:offset] || 0).to_i
|
|
limit = (opts[:limit] || 30).to_i
|
|
|
|
# JOIN of topics table based on manipulating draft_key seems imperfect
|
|
builder = DB.build <<~SQL
|
|
SELECT
|
|
d.*, t.title, t.id topic_id, t.archetype,
|
|
t.category_id, t.closed topic_closed, t.archived topic_archived,
|
|
pu.username, pu.name, pu.id user_id, pu.uploaded_avatar_id, pu.username_lower,
|
|
du.username draft_username, NULL as raw, NULL as cooked, NULL as post_number
|
|
FROM drafts d
|
|
LEFT JOIN LATERAL json_extract_path_text (d.data::json, 'postId') postId ON TRUE
|
|
LEFT JOIN posts p ON postId :: BIGINT = p.id
|
|
LEFT JOIN topics t ON
|
|
CASE
|
|
WHEN d.draft_key LIKE '%' || '#{EXISTING_TOPIC}' || '%'
|
|
THEN CAST(replace(d.draft_key, '#{EXISTING_TOPIC}', '') AS INT)
|
|
ELSE 0
|
|
END = t.id
|
|
JOIN users pu on pu.id = COALESCE(p.user_id, t.user_id, d.user_id)
|
|
JOIN users du on du.id = #{user_id}
|
|
/*where*/
|
|
/*order_by*/
|
|
/*offset*/
|
|
/*limit*/
|
|
SQL
|
|
|
|
builder
|
|
.where('d.user_id = :user_id', user_id: user_id.to_i)
|
|
.order_by('d.updated_at desc')
|
|
.offset(offset)
|
|
.limit(limit)
|
|
.query
|
|
end
|
|
|
|
def self.cleanup!
|
|
DB.exec(<<~SQL)
|
|
DELETE FROM drafts
|
|
WHERE sequence < (
|
|
SELECT MAX(s.sequence)
|
|
FROM draft_sequences s
|
|
WHERE s.draft_key = drafts.draft_key
|
|
AND s.user_id = drafts.user_id
|
|
)
|
|
SQL
|
|
|
|
# remove old drafts
|
|
delete_drafts_older_than_n_days = SiteSetting.delete_drafts_older_than_n_days.days.ago
|
|
Draft.where("updated_at < ?", delete_drafts_older_than_n_days).destroy_all
|
|
end
|
|
|
|
end
|
|
|
|
# == Schema Information
|
|
#
|
|
# Table name: drafts
|
|
#
|
|
# id :integer not null, primary key
|
|
# user_id :integer not null
|
|
# draft_key :string not null
|
|
# data :text not null
|
|
# created_at :datetime not null
|
|
# updated_at :datetime not null
|
|
# sequence :integer default(0), not null
|
|
# revisions :integer default(1), not null
|
|
#
|
|
# Indexes
|
|
#
|
|
# index_drafts_on_user_id_and_draft_key (user_id,draft_key)
|
|
#
|