Looks like a very cool and useful script, but I encountered an error when I attempted this.
Any pointers to how I can resolve it? (no ruby experience)
Error message:
...
copying post_stats...
copying incoming_emails...
copying post_details...
copying post_revisions...
merging tags...
Traceback (most recent call last):
4: from script/bulk_import/discourse_merger.rb:797:in `<main>'
3: from script/bulk_import/discourse_merger.rb:65:in `start'
2: from /home/xxxxx/discourse/script/bulk_import/base.rb:81:in `run'
1: from script/bulk_import/discourse_merger.rb:81:in `execute'
script/bulk_import/discourse_merger.rb:271:in `copy_tags': undefined method `+' for nil:NilClass (NoMethodError)
Using the latest version of Discourse ( v2.2.0.beta2 +5 ) for both the sites.
Thanks for that! I found a couple more errors while trying to merge two (small-ish) forums;
Duplicate slug:
[...]
copying user_archived_messages...
copying unsubscribe_keys...
copying group_mentions...
copying user_histories...
copying user_warnings...
copying group_archived_messages...
copying notifications...
copying category_groups...
copying group_histories...
copying badge_groupings...
merging badges...
copying user_badges...
updating foreign keys in the users table...
updating category description topic ids...
Traceback (most recent call last):
19: from script/bulk_import/discourse_merger.rb:798:in `<main>'
18: from script/bulk_import/discourse_merger.rb:66:in `start'
17: from /home/u/discourse/script/bulk_import/base.rb:81:in `run'
16: from script/bulk_import/discourse_merger.rb:88:in `execute'
15: from script/bulk_import/discourse_merger.rb:219:in `fix_category_descriptions'
14: from script/bulk_import/discourse_merger.rb:219:in `each'
13: from script/bulk_import/discourse_merger.rb:223:in `block in fix_category_descriptions'
12: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/suppressor.rb:48:in `save!'
11: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:315:in `save!'
10: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:383:in `with_transaction_returning_status'
9: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:212:in `transaction'
8: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:254:in `transaction'
7: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/connection_adapters/abstract/transaction.rb:227:in `within_new_transaction'
6: from /home/u/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/monitor.rb:226:in `mon_synchronize'
5: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/connection_adapters/abstract/transaction.rb:230:in `block in within_new_transaction'
4: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:254:in `block in transaction'
3: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:386:in `block in with_transaction_returning_status'
2: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:315:in `block in save!'
1: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/validations.rb:52:in `save!'
/home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/validations.rb:80:in `raise_validation_error': Validation failed: Slug is already in use (ActiveRecord::RecordInvalid)
Double nesting of categories (not sure how this can happen):
[...]
copying notifications...
copying category_groups...
copying group_histories...
copying badge_groupings...
merging badges...
copying user_badges...
updating foreign keys in the users table...
updating category description topic ids...
Traceback (most recent call last):
19: from script/bulk_import/discourse_merger.rb:799:in `<main>'
18: from script/bulk_import/discourse_merger.rb:66:in `start'
17: from /home/u/discourse/script/bulk_import/base.rb:81:in `run'
16: from script/bulk_import/discourse_merger.rb:88:in `execute'
15: from script/bulk_import/discourse_merger.rb:219:in `fix_category_descriptions'
14: from script/bulk_import/discourse_merger.rb:219:in `each'
13: from script/bulk_import/discourse_merger.rb:224:in `block in fix_category_descriptions'
12: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/suppressor.rb:48:in `save!'
11: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:315:in `save!'
10: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:383:in `with_transaction_returning_status'
9: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:212:in `transaction'
8: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:254:in `transaction'
7: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/connection_adapters/abstract/transaction.rb:227:in `within_new_transaction'
6: from /home/u/.rvm/rubies/ruby-2.5.1/lib/ruby/2.5.0/monitor.rb:226:in `mon_synchronize'
5: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/connection_adapters/abstract/transaction.rb:230:in `block in within_new_transaction'
4: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:254:in `block in transaction'
3: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:386:in `block in with_transaction_returning_status'
2: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/transactions.rb:315:in `block in save!'
1: from /home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/validations.rb:52:in `save!'
/home/u/.rvm/gems/ruby-2.5.1/gems/activerecord-5.2.0/lib/active_record/validations.rb:80:in `raise_validation_error': Validation failed: You can't nest a subcategory under another (ActiveRecord::RecordInvalid)
Do you have two categories with the same slug but different names? I guess the script should be merging categories based on slug (/c/:category/:subcategory) instead of name.
Yes, probably.
One of the sites is imported from vbulletin, the other from a new discourse-install. Most of the categories exist in both sites, I will try to align all names and slugs before trying again
I made the merge tool smarter when merging/copying categories. It was only looking at category names but now looks at full category url’s to distinguish parent categories too.
I guess the script should be merging categories based on slug (
but now looks at full category url’s to distinguish parent categories too.