Question:
Design a system to meet the following requirements:
boolean CanView(Viewer, Object, Owner);
Return true if viewer can read object of owner; otherwise return false.
object has one property which can be public or friends. If it is public, viewer can read object; if it is friends, only friend of owner can read object.
Ref
[1] http://www.mitbbs.com/article_t/JobHunting/33022171.html
[2] http://stackoverflow.com/questions/8663072/database-design-for-social-network-friends-list-friends-circle-post-sharing
Design a system to meet the following requirements:
boolean CanView(Viewer, Object, Owner);
Return true if viewer can read object of owner; otherwise return false.
object has one property which can be public or friends. If it is public, viewer can read object; if it is friends, only friend of owner can read object.
Ref
[1] http://www.mitbbs.com/article_t/JobHunting/33022171.html
[2] http://stackoverflow.com/questions/8663072/database-design-for-social-network-friends-list-friends-circle-post-sharing
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