BOOK
 - kind (book kind)
 - title (string)
 - subdomain (string)
 - prices (price)
 - published (boolean)
 - password (string)
 - sections (section)


PRICE
 - book (book)
 - quantity (integer) [0 or nil is default]
 - price_without_tax (decimal)


BOOK KIND
 - name (string)
 - page kinds (page kind)

SECTION
 - name (string)
 - book (book)
 - pages (page)

PAGE
 - section (section)
 - kind (page kind)
 - title (string)
 - displayed_title (string)
 - subtitle (string)
 - photos (photos
 - street (string)
 - street_number (integer)
 - street_suffix (string)
 - post (post)
 - phone (string)
 - mobile (string)
 - mobile_published (boolean)
 - email (string)
 - email_published (boolean)
 - website (string)
 - body (text)
 - body_original (text)
 - data_from (string)
 - owner (user)
 - printed (boolean)
 - notes (text)
 - published (boolean)
 - reviewed (boolean)
 - review_date (datetime)
 - reviewer_notes (text)
 - reviewer (user)

ORDER
 - page (page)
 - company (string)
 - name (string)
 - surname (string)
 - street (string)
 - street_number (integer)
 - street_suffix (string)
 - post (post)
 - phone (string)
 - email (string)
 - pickup (pickup)
 - quantity (integer)
 - price (decimal)
 - shipped_at (datetime)
 - vat_id (string)
 

PAGE KIND
  - name (string)
  - book kind (book kind)
  - page fields (string)

PHOTO
 - photo (paperclip)
 - page (page)
 
POST
 - name (string)


USER
 - kind (user kind)
 - email (string)
 - password_hash (string)
 - name (string)
 - surname (string)
 

USER KIND [admin, reviewer, editor]
 - name (string)

PICKUP [In person, By post]