Hello, did anyone come across with the fact that the data in cgridview need to be removed in the following way

 Catalog 1  
  - directory 1.1  
  - directory 1.2  
 Catalog 2   
  - directory 2.1  
  - directory 2.2  

those. In the tree, the parent is descendants, given that the structure of the database is plain id , title , parent_id

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