mirror of
https://github.com/discourse/discourse.git
synced 2024-12-16 12:23:44 +08:00
224 lines
7.1 KiB
Ruby
224 lines
7.1 KiB
Ruby
require "mysql2"
|
|
require File.expand_path(File.dirname(__FILE__) + "/base.rb")
|
|
|
|
# Call it like this:
|
|
# RAILS_ENV=production ruby script/import_scripts/mybb.rb
|
|
class ImportScripts::MyBB < ImportScripts::Base
|
|
|
|
MYBB_DB = "mybb_db"
|
|
TABLE_PREFIX = "mybb_"
|
|
BATCH_SIZE = 1000
|
|
|
|
def initialize
|
|
super
|
|
|
|
@client = Mysql2::Client.new(
|
|
host: "localhost",
|
|
username: "root",
|
|
#password: "",
|
|
database: MYBB_DB
|
|
)
|
|
end
|
|
|
|
def execute
|
|
import_users
|
|
import_categories
|
|
import_posts
|
|
import_private_messages
|
|
suspend_users
|
|
end
|
|
|
|
def import_users
|
|
puts '', "creating users"
|
|
|
|
total_count = mysql_query("SELECT count(*) count
|
|
FROM #{TABLE_PREFIX}users u
|
|
JOIN #{TABLE_PREFIX}usergroups g ON g.gid = u.usergroup
|
|
WHERE g.title != 'Banned';").first['count']
|
|
|
|
batches(BATCH_SIZE) do |offset|
|
|
results = mysql_query(
|
|
"SELECT uid id, email email, username, regdate, g.title `group`
|
|
FROM #{TABLE_PREFIX}users u
|
|
JOIN #{TABLE_PREFIX}usergroups g ON g.gid = u.usergroup
|
|
WHERE g.title != 'Banned'
|
|
ORDER BY u.uid ASC
|
|
LIMIT #{BATCH_SIZE}
|
|
OFFSET #{offset};")
|
|
|
|
break if results.size < 1
|
|
|
|
next if all_records_exist? :users, results.map {|u| u["id"].to_i}
|
|
|
|
create_users(results, total: total_count, offset: offset) do |user|
|
|
{ id: user['id'],
|
|
email: user['email'],
|
|
username: user['username'],
|
|
created_at: Time.zone.at(user['regdate']),
|
|
moderator: user['group'] == 'Super Moderators',
|
|
admin: user['group'] == 'Administrators' }
|
|
end
|
|
end
|
|
end
|
|
|
|
def import_categories
|
|
results = mysql_query("
|
|
SELECT fid id, pid parent_id, left(name, 50) name, description
|
|
FROM #{TABLE_PREFIX}forums
|
|
ORDER BY pid ASC, fid ASC
|
|
")
|
|
|
|
create_categories(results) do |row|
|
|
h = {id: row['id'], name: CGI.unescapeHTML(row['name']), description: CGI.unescapeHTML(row['description'])}
|
|
if row['parent_id'].to_i > 0
|
|
h[:parent_category_id] = category_id_from_imported_category_id(row['parent_id'])
|
|
end
|
|
h
|
|
end
|
|
end
|
|
|
|
def import_posts
|
|
puts "", "creating topics and posts"
|
|
|
|
total_count = mysql_query("SELECT count(*) count from #{TABLE_PREFIX}posts").first["count"]
|
|
|
|
batches(BATCH_SIZE) do |offset|
|
|
results = mysql_query("
|
|
SELECT p.pid id,
|
|
p.tid topic_id,
|
|
t.fid category_id,
|
|
t.subject title,
|
|
t.firstpost first_post_id,
|
|
p.uid user_id,
|
|
p.message raw,
|
|
p.dateline post_time
|
|
FROM #{TABLE_PREFIX}posts p,
|
|
#{TABLE_PREFIX}threads t
|
|
WHERE p.tid = t.tid
|
|
ORDER BY p.dateline
|
|
LIMIT #{BATCH_SIZE}
|
|
OFFSET #{offset};
|
|
")
|
|
|
|
break if results.size < 1
|
|
|
|
next if all_records_exist? :posts, results.map {|m| m['id'].to_i}
|
|
|
|
create_posts(results, total: total_count, offset: offset) do |m|
|
|
skip = false
|
|
mapped = {}
|
|
|
|
# If you have imported a phpbb forum to mybb previously there might
|
|
# be a problem with #{TABLE_PREFIX}threads.firstpost. If these ids are wrong
|
|
# the thread cannot be imported to discourse as the topic post is
|
|
# missing. This query retrieves the first_post_id manually. As it
|
|
# will decrease the performance it is commented out by default.
|
|
# m['first_post_id'] = mysql_query("
|
|
# SELECT p.pid id,
|
|
# FROM #{TABLE_PREFIX}posts p,
|
|
# #{TABLE_PREFIX}threads t
|
|
# WHERE p.tid = #{m['topic_id']} AND t.tid = #{m['topic_id']}
|
|
# ORDER BY p.dateline
|
|
# LIMIT 1
|
|
# ").first['id']
|
|
|
|
mapped[:id] = m['id']
|
|
mapped[:user_id] = user_id_from_imported_user_id(m['user_id']) || -1
|
|
mapped[:raw] = process_mybb_post(m['raw'], m['id'])
|
|
mapped[:created_at] = Time.zone.at(m['post_time'])
|
|
|
|
if m['id'] == m['first_post_id']
|
|
mapped[:category] = category_id_from_imported_category_id(m['category_id'])
|
|
mapped[:title] = CGI.unescapeHTML(m['title'])
|
|
else
|
|
parent = topic_lookup_from_imported_post_id(m['first_post_id'])
|
|
if parent
|
|
mapped[:topic_id] = parent[:topic_id]
|
|
else
|
|
puts "Parent post #{m['first_post_id']} doesn't exist. Skipping #{m["id"]}: #{m["title"][0..40]}"
|
|
skip = true
|
|
end
|
|
end
|
|
|
|
skip ? nil : mapped
|
|
end
|
|
end
|
|
end
|
|
|
|
def import_private_messages
|
|
puts "", "private messages are not implemented"
|
|
end
|
|
|
|
def suspend_users
|
|
puts '', "banned users are not implemented"
|
|
end
|
|
|
|
# Discourse usernames don't allow spaces
|
|
def convert_username(username, post_id)
|
|
count = 0
|
|
username.gsub!(/\s+/) { |a| count += 1; '_' }
|
|
# Warn on MyBB bug that places post text in the quote line - http://community.mybb.com/thread-180526.html
|
|
if count > 5
|
|
puts "Warning: probably incorrect quote in post #{post_id}"
|
|
end
|
|
return username
|
|
end
|
|
|
|
# Take an original post id and return the migrated topic id and post number for it
|
|
def post_id_to_post_num_and_topic(quoted_post_id, post_id)
|
|
quoted_post_id_from_imported = post_id_from_imported_post_id(quoted_post_id.to_i)
|
|
if quoted_post_id_from_imported
|
|
begin
|
|
post = Post.find(quoted_post_id_from_imported)
|
|
return "post:#{post.post_number}, topic:#{post.topic_id}"
|
|
rescue
|
|
puts "Could not find migrated post #{quoted_post_id_from_imported} quoted by original post #{post_id} as #{quoted_post_id}"
|
|
return ""
|
|
end
|
|
else
|
|
puts "Original post #{post_id} quotes nonexistent post #{quoted_post_id}"
|
|
return ""
|
|
end
|
|
end
|
|
|
|
def process_mybb_post(raw, import_id)
|
|
s = raw.dup
|
|
|
|
# convert the quote line
|
|
s.gsub!(/\[quote='([^']+)'.*?pid='(\d+).*?\]/) {
|
|
"[quote=\"#{convert_username($1, import_id)}, " + post_id_to_post_num_and_topic($2, import_id) + '"]'
|
|
}
|
|
|
|
# :) is encoded as <!-- s:) --><img src="{SMILIES_PATH}/icon_e_smile.gif" alt=":)" title="Smile" /><!-- s:) -->
|
|
s.gsub!(/<!-- s(\S+) -->(?:.*)<!-- s(?:\S+) -->/, '\1')
|
|
|
|
# Some links look like this: <!-- m --><a class="postlink" href="http://www.onegameamonth.com">http://www.onegameamonth.com</a><!-- m -->
|
|
s.gsub!(/<!-- \w --><a(?:.+)href="(\S+)"(?:.*)>(.+)<\/a><!-- \w -->/, '[\2](\1)')
|
|
|
|
# Many phpbb bbcode tags have a hash attached to them. Examples:
|
|
# [url=https://google.com:1qh1i7ky]click here[/url:1qh1i7ky]
|
|
# [quote="cybereality":b0wtlzex]Some text.[/quote:b0wtlzex]
|
|
s.gsub!(/:(?:\w{8})\]/, ']')
|
|
|
|
# Remove mybb video tags.
|
|
s.gsub!(/(^\[video=.*?\])|(\[\/video\]$)/, '')
|
|
|
|
s = CGI.unescapeHTML(s)
|
|
|
|
# phpBB shortens link text like this, which breaks our markdown processing:
|
|
# [http://answers.yahoo.com/question/index ... 223AAkkPli](http://answers.yahoo.com/question/index?qid=20070920134223AAkkPli)
|
|
#
|
|
# Work around it for now:
|
|
s.gsub!(/\[http(s)?:\/\/(www\.)?/, '[')
|
|
|
|
s
|
|
end
|
|
|
|
def mysql_query(sql)
|
|
@client.query(sql, cache_rows: false)
|
|
end
|
|
end
|
|
|
|
ImportScripts::MyBB.new.perform
|
|
|