尝试移动分类时出现“你不能在另一个子分类下嵌套”错误

[Jonathan5]

Does this help? Sub-sub-categories - #7 by Michael_Uray

@Michael_Uray

Quick guide to set it from 2 (default) to 3 via the console:

cd /var/discourse/
./launcher enter app
rails c

read current value:

[1] pry(main)> SiteSetting.max_category_nesting
=> 2

write new value:

[2] pry(main)> SiteSetting.max_category_nesting = 3
=> 3