Howdy All- I've poked around the net for some snippets, and have done my own in the past, but wanted to get some more ideas on how you do a permissions "system". This means, in your application, how do you control and enforce different permissions for different users?
Simple example: An image repository. You have users who can download images and/or upload images. And certain users can only search for images within a certain criteria. What I've done in the past is created a permission_flag column for each user. Zero or One determines whether or not the user can do that function, and the various functions are indicated by position (or index). So if you had upload and download functions, you can have: 01 = can download, but can't upload 11 = can download and upload. If I add a new function, I have to add another digit (and potentially increase the column size if things grow faster than planned). To enforce this, as a user attempts each function, I simply check the function "index" and see if it's one or zero. With me so far? Now, for restricting database access: What I've done is created a user_where column for each user. In this column I add a where clause that's appended to each and every search the user attempts (with the usual input safety checks for common db exploits). For example, if a user can only see Approved images (in my pretend application example here), the user_where value might be "category = 'Approved'". For multiple values, it could be "category IN ('Approved', 'Pending')". Does this make sense? How are other people doing things? I've given a little bit of thought to it, but not enough. With all the applications out there everyone at some point has to come up with their own system. Ideas? Thanks, Jason ===== Just Another Fu@#in' Adventure http://markantes.com/jason __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php