id name email password birthday genre
photo is_student! phone_number! my_class! my_course! my_glade! timestamps
id user_id title content photo approved
timestamps
id user_id post_id type (1 liked,2 disliked)
timestamps
id user_id post_id content
timestamps
id user_id comment_id type (1 liked,2 disliked)
timestamps
id user_id post_id
timestamps