ELib domain model Skill name string (45) ∗

User

Job name string (255) ∗

admin boolean ∗ current_sign_in_at datetime current_sign_in_ip string email string ∗ U encrypted_password string ∗ experience integer ∗ last_sign_in_at datetime last_sign_in_ip string name string ∗ profile text remember_created_at datetime reset_password_sent_at datetime reset_password_token string sign_in_count integer ∗

UserHasSkill

BookCase Book Category name string (45) ∗

description text isbn string (13) ∗ mb_image_url string (512) pc_image_url string (512) title string (255) ∗

Tag name string (45) ∗

evaluation integer ∗ level integer ∗

TagHasBook

Note note text ∗