i'm building a site to sell images (this is the concept, the reality is
All the images are in a directory mapped through LocalFS product.
For every image i have a record in a SQL table with all the basic
informations: author, name of the file, cost.

What i haven't understood is how to block users from getting images if
they have not enough credit to buy them.
I need to control the view method, but i don't know if this idea is the
right one or there are better solutions.

Any hints?


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