mirror of
https://github.com/discourse/discourse.git
synced 2024-11-25 09:42:07 +08:00
368 lines
9.6 KiB
Ruby
368 lines
9.6 KiB
Ruby
# frozen_string_literal: true
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require_relative "base"
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require "sqlite3"
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require "json"
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class BulkImport::Generic < BulkImport::Base
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AVATAR_DIRECTORY = ENV["AVATAR_DIRECTORY"]
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UPLOAD_DIRECTORY = ENV["UPLOAD_DIRECTORY"]
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def initialize(db_path)
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super()
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@db = create_connection(db_path)
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end
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def start
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run # will call execute, and then "complete" the migration
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# Now that the migration is complete, do some more work:
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Discourse::Application.load_tasks
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puts "running 'import:ensure_consistency' rake task."
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Rake::Task["import:ensure_consistency"].invoke
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end
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def execute
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import_categories
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import_users
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import_user_emails
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import_single_sign_on_records
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import_topics
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import_posts
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import_topic_allowed_users
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import_likes
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import_user_stats
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import_tags
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end
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def import_categories
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puts "Importing categories..."
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categories = query(<<~SQL)
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WITH RECURSIVE tree(id, parent_category_id, name, description, color, text_color, read_restricted, slug,
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old_relative_url, existing_id, level, rowid) AS (
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SELECT c.id, c.parent_category_id, c.name, c.description, c.color, c.text_color, c.read_restricted, c.slug,
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c.old_relative_url, c.existing_id, 0 AS level, c.ROWID
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FROM categories c
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WHERE c.parent_category_id IS NULL
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UNION
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SELECT c.id, c.parent_category_id, c.name, c.description, c.color, c.text_color, c.read_restricted, c.slug,
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c.old_relative_url, c.existing_id, tree.level + 1 AS level, c.ROWID
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FROM categories c,
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tree
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WHERE c.parent_category_id = tree.id
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)
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SELECT *
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FROM tree
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ORDER BY level, rowid
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SQL
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create_categories(categories) do |row|
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{
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imported_id: row["id"],
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existing_id: row["existing_id"],
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name: row["name"],
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description: row["description"],
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parent_category_id:
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row["parent_category_id"] ? category_id_from_imported_id(row["parent_category_id"]) : nil,
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slug: row["slug"],
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}
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end
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end
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def import_users
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puts "Importing users..."
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users = query(<<~SQL)
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SELECT ROWID, *
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FROM users
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ORDER BY ROWID
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SQL
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create_users(users) do |row|
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sso_record = JSON.parse(row["sso_record"]) if row["sso_record"].present?
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if row["suspension"].present?
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suspension = JSON.parse(row["suspension"])
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suspended_at = suspension["suspended_at"]
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suspended_till = suspension["suspended_till"]
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end
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{
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imported_id: row["id"],
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username: row["username"],
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name: row["name"],
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email: row["email"],
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external_id: sso_record&.fetch("external_id"),
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created_at: to_datetime(row["created_at"]),
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admin: row["admin"],
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moderator: row["moderator"],
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suspended_at: suspended_at,
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suspended_till: suspended_till,
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}
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end
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end
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def import_user_emails
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puts "", "Importing user emails..."
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users = query(<<~SQL)
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SELECT ROWID, id, email, created_at
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FROM users
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ORDER BY ROWID
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SQL
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create_user_emails(users) do |row|
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{
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# FIXME: using both "imported_id" and "imported_user_id" and should be replaced by just "imported_id"
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imported_id: row["id"],
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imported_user_id: row["id"],
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email: row["email"],
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created_at: to_datetime(row["created_at"]),
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}
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end
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end
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def import_single_sign_on_records
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puts "", "Importing SSO records..."
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users = query(<<~SQL)
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SELECT ROWID, id, sso_record
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FROM users
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WHERE sso_record IS NOT NULL
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ORDER BY ROWID
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SQL
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create_single_sign_on_records(users) do |row|
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sso_record = JSON.parse(row["sso_record"], symbolize_names: true)
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# FIXME: using both "imported_id" and "imported_user_id" and should be replaced by just "imported_id"
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sso_record[:imported_id] = row["id"]
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sso_record[:imported_user_id] = row["id"]
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sso_record
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end
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end
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def import_topics
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puts "Importing topics..."
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topics = query(<<~SQL)
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SELECT ROWID, *
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FROM topics
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ORDER BY ROWID
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SQL
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create_topics(topics) do |row|
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{
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archetype: row["private_message"] ? Archetype.private_message : Archetype.default,
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imported_id: row["id"],
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title: row["title"],
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user_id: user_id_from_imported_id(row["user_id"]),
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created_at: to_datetime(row["created_at"]),
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category_id: category_id_from_imported_id(row["category_id"]),
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closed: to_boolean(row["closed"]),
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views: row["views"],
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}
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end
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end
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def import_topic_allowed_users
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puts "Importing topic_allowed_users..."
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topics = query(<<~SQL)
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SELECT ROWID, *
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FROM topics
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WHERE private_message IS NOT NULL
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ORDER BY ROWID
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SQL
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added = 0
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create_topic_allowed_users(topics) do |row|
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next unless topic_id = topic_id_from_imported_id(row["id"])
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imported_user_id = JSON.parse(row["private_message"])["user_ids"].first
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user_id = user_id_from_imported_id(imported_user_id)
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added += 1
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{
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# FIXME: missing imported_id
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topic_id: topic_id,
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user_id: user_id,
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}
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end
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puts "", "Added #{added} topic_allowed_users records."
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end
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def import_posts
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puts "Importing posts..."
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posts = query(<<~SQL)
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SELECT ROWID, *
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FROM posts
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ORDER BY topic_id, post_number
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SQL
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create_posts(posts) do |row|
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next if row["raw"].blank?
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next unless topic_id = topic_id_from_imported_id(row["topic_id"])
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{
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imported_id: row["id"],
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topic_id: topic_id,
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user_id: user_id_from_imported_id(row["user_id"]),
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created_at: to_datetime(row["created_at"]),
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raw: row["raw"],
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like_count: row["like_count"],
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}
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end
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end
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def import_likes
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puts "Importing likes..."
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@imported_likes = Set.new
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likes = query(<<~SQL)
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SELECT ROWID, *
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FROM likes
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ORDER BY ROWID
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SQL
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create_post_actions(likes) do |row|
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post_id = post_id_from_imported_id(row["post_id"])
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user_id = user_id_from_imported_id(row["user_id"])
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next if post_id.nil? || user_id.nil?
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next if @imported_likes.add?([post_id, user_id]).nil?
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{
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# FIXME: missing imported_id
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post_id: post_id_from_imported_id(row["post_id"]),
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user_id: user_id_from_imported_id(row["user_id"]),
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post_action_type_id: 2,
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created_at: to_datetime(row["created_at"]),
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}
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end
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end
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def import_user_stats
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puts "Importing user stats..."
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users = query(<<~SQL)
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WITH posts_counts AS (
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SELECT COUNT(p.id) AS count, p.user_id
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FROM posts p GROUP BY p.user_id
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),
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topic_counts AS (
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SELECT COUNT(t.id) AS count, t.user_id
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FROM topics t GROUP BY t.user_id
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),
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first_post AS (
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SELECT MIN(p.created_at) AS created_at, p.user_id
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FROM posts p GROUP BY p.user_id ORDER BY p.created_at ASC
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)
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SELECT u.id AS user_id, u.created_at, pc.count AS posts, tc.count AS topics, fp.created_at AS first_post
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FROM users u
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JOIN posts_counts pc ON u.id = pc.user_id
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JOIN topic_counts tc ON u.id = tc.user_id
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JOIN first_post fp ON u.id = fp.user_id
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SQL
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create_user_stats(users) do |row|
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user = {
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imported_id: row["user_id"],
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imported_user_id: row["user_id"],
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new_since: to_datetime(row["created_at"]),
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post_count: row["posts"],
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topic_count: row["topics"],
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first_post_created_at: to_datetime(row["first_post"]),
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}
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likes_received = @db.execute(<<~SQL)
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SELECT COUNT(l.id) AS likes_received
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FROM likes l JOIN posts p ON l.post_id = p.id
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WHERE p.user_id = #{row["user_id"]}
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SQL
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user[:likes_received] = row["likes_received"] if likes_received
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likes_given = @db.execute(<<~SQL)
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SELECT COUNT(l.id) AS likes_given
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FROM likes l
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WHERE l.user_id = #{row["user_id"]}
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SQL
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user[:likes_given] = row["likes_given"] if likes_given
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user
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end
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end
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def import_tags
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puts "", "Importing tags..."
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tags =
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query("SELECT id as topic_id, tags FROM topics")
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.map do |r|
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next unless r["tags"]
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[r["topic_id"], JSON.parse(r["tags"]).uniq]
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end
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.compact
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tag_mapping = {}
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tags
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.map(&:last)
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.flatten
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.compact
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.uniq
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.each do |tag_name|
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cleaned_tag_name = DiscourseTagging.clean_tag(tag_name)
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tag = Tag.find_by_name(cleaned_tag_name) || Tag.create!(name: cleaned_tag_name)
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tag_mapping[tag_name] = tag.id
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end
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tags_disaggregated =
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tags
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.map do |topic_id, tags_of_topic|
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tags_of_topic.map { |t| { topic_id: topic_id, tag_id: tag_mapping.fetch(t) } }
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end
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.flatten
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create_topic_tags(tags_disaggregated) do |row|
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next unless topic_id = topic_id_from_imported_id(row[:topic_id])
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{ topic_id: topic_id, tag_id: row[:tag_id] }
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end
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end
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def create_connection(path)
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sqlite = SQLite3::Database.new(path, results_as_hash: true)
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sqlite.busy_timeout = 60_000 # 60 seconds
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sqlite.auto_vacuum = "full"
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sqlite.foreign_keys = true
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sqlite.journal_mode = "wal"
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sqlite.synchronous = "normal"
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sqlite
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end
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def query(sql)
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@db.prepare(sql).execute
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end
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def to_date(text)
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text.present? ? Date.parse(text) : nil
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end
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def to_datetime(text)
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text.present? ? DateTime.parse(text) : nil
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end
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def to_boolean(value)
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value == 1
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end
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end
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BulkImport::Generic.new(ARGV.first).start
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