I want to implement an application for indexing deleted data and then accessing it in accordance with the presence of certain rights. In fact - on the server a bunch of files / folders with meaningful names (subject, group). Students / teachers enter a login-password pair and get access to them. Indexed data is stored in a hierarchical structure table with a primary key — a unique identifier for the position of each node in the list. There are also file name fields, extension, file path. It is necessary in accordance to this table to make a table of user base. Share ideas on how this business can be implemented?

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    The article deals with a similar problem and offers several solutions to it: Access Control .