Use um script de importação que requer MySQL

With the latest update ver 2.0.0 beta10 I’m now getting more errors with the bbpress import script (still can’t figure out why images are not being pulled over, but instead referring to their old URLs). Error after the importing topics and posts:

importing private messages...
      120 / 120 (100.0%)  [156526 items/min]  /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/mysql2-0.5.1/lib/mysql2/client.rb:131:in `_query': Table 'db.wp_bp_messages_messages' doesn't exist (Mysql2::Error)
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/mysql2-0.5.1/lib/mysql2/client.rb:131:in `block in query'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/mysql2-0.5.1/lib/mysql2/client.rb:130:in `handle_interrupt'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/mysql2-0.5.1/lib/mysql2/client.rb:130:in `query'
	from /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/rack-mini-profiler-1.0.0/lib/patches/db/mysql2.rb:22:in `query'
	from script/import_scripts/bbpress.rb:505:in `bbpress_query'
	from script/import_scripts/bbpress.rb:453:in `block in import_private_messages'
	from /var/www/discourse/script/import_scripts/base.rb:870:in `block in batches'
	from /var/www/discourse/script/import_scripts/base.rb:869:in `loop'
	from /var/www/discourse/script/import_scripts/base.rb:869:in `batches'
	from script/import_scripts/bbpress.rb:452:in `import_private_messages'
	from script/import_scripts/bbpress.rb:32:in `execute'
	from /var/www/discourse/script/import_scripts/base.rb:46:in `perform'
	from script/import_scripts/bbpress.rb:510:in `<main>'
1 curtida

EDIT: After deeper inspection I found that (at least in my setup) the file was called

  - "templates/import/mysql-dep.template.yml"

NOTE that the correct spelling is “dep”, not “dev”.

=================

Hello! Thanks for posting this. I tried but got this error:

cat: templates/import/mysql-dev.template.yml: No such file or directory

I unfortunately don’t know enough about Docker to proceed…What am I doing wrong? Thank you so much. Here is the full output:

root@forum /var/discourse # ./launcher rebuild import
Ensuring launcher is up to date
Fetching origin
remote: Counting objects: 16, done.
remote: Compressing objects: 100% (10/10), done.
remote: Total 16 (delta 12), reused 7 (delta 6), pack-reused 0
Unpacking objects: 100% (16/16), done.
From https://github.com/discourse/discourse_docker
   2ad56e6..d032356  master     -> origin/master
Updating Launcher
Updating 2ad56e6..d032356
Fast-forward
 discourse-setup       | 2 +-
 image/base/Dockerfile | 5 +++--
 launcher              | 4 ++--
 3 files changed, 6 insertions(+), 5 deletions(-)
Ensuring launcher is up to date
Fetching origin
Launcher is up-to-date
cat: templates/import/mysql-dev.template.yml: No such file or directory
cd /pups && git pull && /pups/bin/pups --stdin
/usr/bin/docker: invalid reference format: repository name must be lowercase.
See '/usr/bin/docker run --help'.
cat: cids/import_bootstrap.cid: No such file or directory
"docker rm" requires at least 1 argument.
See 'docker rm --help'.

Usage:  docker rm [OPTIONS] CONTAINER [CONTAINER...]

Remove one or more containers
rm: cannot remove 'cids/import_bootstrap.cid': No such file or directory
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one
root@forum /var/discourse #support
1 curtida

did you get it resolved? Im too having this error

No. we just manually re-uploaded all of the images.

So I found out the reason for the issue we were having. The import script is breaking when it is trying to get wp_bb_message_message table, that’s happening because you would not have BuddyPress private messages module (which create these table) installed in your WordPress.

I did manage to pass that error by removing the code in bbpress.rb from line 414 to 502
This

 def import_private_messages
puts "", "importing private messages..."
last_post_id = -1
total_posts = bbpress_query("SELECT COUNT(*) count FROM #{BB_PRESS_PREFIX}bp_messages_messages").first["count"]

threads = {}

total_count = bbpress_query("SELECT COUNT(*) count FROM #{BB_PRESS_PREFIX}bp_messages_recipients").first["count"]
current_count = 0

batches(BATCH_SIZE) do |offset|
  rows = bbpress_query(<<-SQL
    SELECT thread_id, user_id
      FROM #{BB_PRESS_PREFIX}bp_messages_recipients
  ORDER BY id
     LIMIT #{BATCH_SIZE}
    OFFSET #{offset}
  SQL
  ).to_a

  break if rows.empty?

  rows.each do |row|
    current_count += 1
    print_status(current_count, total_count, get_start_time('private_messages'))

    threads[row['thread_id']] ||= {
      target_user_ids: [],
      imported_topic_id: nil
    }
    user_id = user_id_from_imported_user_id(row['user_id'])
    if user_id && !threads[row['thread_id']][:target_user_ids].include?(user_id)
      threads[row['thread_id']][:target_user_ids] << user_id
    end
  end
end

batches(BATCH_SIZE) do |offset|
  posts =  bbpress_query(<<-SQL
    SELECT id,
           thread_id,
           date_sent,
           sender_id,
           subject,
           message
      FROM wp_bp_messages_messages
     WHERE id > #{last_post_id}
  ORDER BY thread_id, date_sent
     LIMIT #{BATCH_SIZE}
  SQL
  ).to_a

  break if posts.empty?

  last_post_id = posts[-1]["id"].to_i

  create_posts(posts, total: total_posts, offset: offset) do |post|
    if tcf = TopicCustomField.where(name: 'bb_thread_id', value: post['thread_id']).first
      {
        id: "pm#{post['id']}",
        topic_id: threads[post['thread_id']][:imported_topic_id],
        user_id: user_id_from_imported_user_id(post['sender_id']) || find_user_by_import_id(post['sender_id'])&.id || -1,
        raw: post['message'],
        created_at: post['date_sent'],
      }
    else
      # First post of the thread
      {
        id: "pm#{post['id']}",
        archetype: Archetype.private_message,
        user_id: user_id_from_imported_user_id(post['sender_id']) || find_user_by_import_id(post['sender_id'])&.id || -1,
        title: post['subject'],
        raw: post['message'],
        created_at: post['date_sent'],
        target_usernames: User.where(id: threads[post['thread_id']][:target_user_ids]).pluck(:username),
        post_create_action: proc do |new_post|
          if topic = new_post.topic
            threads[post['thread_id']][:imported_topic_id] = topic.id
            TopicCustomField.create(topic_id: topic.id, name: 'bb_thread_id', value: post['thread_id'])
          else
            puts "Error in post_create_action! Can't find topic!"
          end
        end
      }
    end
  end
end
end

You can also get past it by simply installing buddypress and enabling its private message module.

2 curtidas

Thanks for your helpful tutorial , worked fine for me !

Cheers

Sam

Hi,
thank you for this how to :slight_smile:
Is the attachments are also imported ?

It looks like it. There is a configuration for the attachments directory.

1 curtida

Hi,
Sorry but how do you generate yourbackup.sql ? What is this file supposed to contain ? An export of the bbpress databases ??

Thank you
++ .

That’s right. How to get it depends on what tools you have and what you know how to use.

A bbpress install is quite standard. A wordpress database and all posts inside wp_posts. So all I need is to dump the Wordpress posts database ?
Sorry to ask but I didn’t find any other instructions.

Thank you

You can either get a dump of the entire wordpress database or you can read the code and see what tables are actually used. It’s easier to dump the whole database.

Whether you do that with mysqump or cpanel or phpmtadmin or some other tool is hard make a recommendation for.

It works (after few tweaks) :slight_smile: :slight_smile: Thank you :wink:
succeed

1 curtida

I have connection error to the MySQL DB when importing. SQL Db is in localhost. How do I get past this error?

/var/www/discourse# su discourse -c “bundle exec ruby script/import_scripts/bbpress.rb”

/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/mysql2-0.5.3/lib/mysql2/client.rb:90:in `connect’: Can’t connect to local MySQL server through socket ‘/var/run/mysqld/mysqld.sock’ (2) (Mysql2::Error::ConnectionError)

Thanks.

If the mysql server is running on the server and not in the container then try using the host ip number

MySQL is running in a container where discourse is also running. Looks like import script from the discourse container is unable to connect to MySQL container. What else can I do?

Are you sure? Can you connect to it with the mysql command line tool from within the container?

1 curtida

I got pas that issue. I was using localhost, then I figured the IP address for MySQL should be from ```
docker inspect mysql | grep IPAddress.


Next Issue with Import Script.. 

/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/mysql2-0.5.3/lib/mysql2/client.rb:90:in `connect': Plugin caching_sha2_password could not be loaded: /usr/lib/x86_64-linux-gnu/mariadb19/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory (Mysql2::Error::ConnectionError)

I did use ALTER command to change the password.

Solution to above issue - Ran the following command again.

ALTER USER 'root' IDENTIFIED WITH mysql_native_password BY 'newpassword';
1 curtida

Depois de aplicar algumas das correções diversas postadas acima para problemas ao executar o importador, não estou vendo nenhum post ser realmente importado. Alguma ideia do motivo pelo qual obtive uma conexão bem-sucedida com o novo banco de dados, mas nenhum post foi importado?

Estou tentando importar algumas centenas de posts de um site WordPress (5.7) que não usa bbPress para um site Discourse já em execução, que também possui algumas centenas de posts (2.7.0-beta5).

O banco de dados importado parece existir:

mysql> show tables;
…
| wp_commentmeta        |
| wp_comments           |
| wp_links              |
| wp_options            |
| wp_postmeta           |
| wp_posts              |
| wp_term_relationships |
| wp_term_taxonomy      |
| wp_termmeta           |
| wp_terms              |
| wp_usermeta           |
| wp_users              |
…
Saída ao executar o importador:
/var/www/discourse# su discourse -c "bundle exec ruby script/import_scripts/bbpress.rb"
Carregando grupos existentes...
Carregando usuários existentes...
Carregando categorias existentes...
Carregando posts existentes...
Carregando tópicos existentes...

importando usuários...

importando usuários anônimos...

importando categorias...

importando tópicos e posts...

Importando anexos de 'postmeta'...

criando permalinks...


Atualizando status do tópico

Atualizando bumped_at nos tópicos

Atualizando last_posted_at nos usuários

Atualizando last_seen_at nos usuários

Atualizando first_post_created_at...

Atualizando post_count do usuário...

Atualizando topic_count do usuário...

Atualizando digest_attempted_at do usuário...

Atualizando usuários dos tópicos

Atualizando tempos dos posts

Atualizando usuários dos tópicos em destaque

Atualizando tópicos em destaque nas categorias
        6 / 6 (100.0%)  [1771 itens/min]  ]  
Resetando contadores dos tópicos


Concluído (00h 00min 00sec)