discourse/lib/tasks/users.rake

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desc "Change topic/post ownership of all the topics/posts by a specific user (without creating new revision)"
task "users:change_post_ownership", [:old_username, :new_username, :archetype] => [:environment] do |_,args|
old_username = args[:old_username]
new_username = args[:new_username]
archetype = args[:archetype]
archetype = archetype.downcase if archetype
if !old_username || !new_username
puts "ERROR: Expecting rake posts:change_post_ownership[old_username,new_username,archetype]"
exit 1
end
old_user = User.find_by(username_lower: old_username.downcase)
if !old_user
puts "ERROR: User with username #{old_username} does not exist"
exit 1
end
new_user = User.find_by(username_lower: new_username.downcase)
if !new_user
puts "ERROR: User with username #{new_username} does not exist"
exit 1
end
if archetype == "private"
posts = Post.private_posts.where(user_id: old_user.id)
elsif archetype == "public" || !archetype
posts = Post.public_posts.where(user_id: old_user.id)
else
puts "ERROR: Expecting rake posts:change_post_ownership[old_username,new_username,archetype] where archetype is public or private"
exit 1
end
puts "Changing post ownership"
i = 0
posts.each do |p|
PostOwnerChanger.new(post_ids: [p.id], topic_id: p.topic.id, new_owner: User.find_by(username_lower: new_user.username_lower), acting_user: User.find_by(username_lower: "system"), skip_revision: true).change_owner!
putc "."
i += 1
end
puts "", "#{i} posts ownership changed!", ""
end