تصميم:دواسوا/data

Listing data record is comprised of the following two data structures, that are used to describe an entry through API actions:

name : string: the name of the medicine in Latin script
name_arabic : string: the name of the medicine in Arabic script, if available (optional)
expiry : date: the date of expiry of the medicine. The significance is in the precision of months, i.e YYYY/MM
package-state : string(fabrica | opened | partial): The case of the packaging of the medicine.
governrate : string(predefined): the governerate where the package is to be picked up
description : text: a brief description, and/or notes by the submitter
photo : blob: an optional photograph of the package

email-address : string(email-address): email address identifies a user who enlists an item. It is used to communicate with the user to confirm his listing, and to confirm the removal of a listing. It's a user's means to control his listings. It could be made invisible to viewers of a listing unless no phone number is given, in which case it is the only means to contact the user by those interested in a listing.
nickname : string: A friendly name to greet the user by those contacting regarding a listing.
phone-number : string(phone-number): An optional method to contact a user by those interested in a listing. If entered then it is visible.
email_address_visible : boolean: Determines whether the email address is visible. Ignored if no valid phone number is entered.

Stored data preserves some operational information in addition to the basic entry structure:

Listings

id: base62(sha256(email-address . sha256(name . expiry . submission-date))); entry's unique identifier
package-info
contact-info
submission-date: timestamp
instatement-date: timestamp