Django Task

Please install:

1. djangorestframework
2. django-filter

Two Models:

1. PromoCode - the promo code itself

   Field	Type	Meaning
   code	string	the code for the promocode, case insensitive
   code_l	string	automatically set lowercase version of the promocode code
   type	string	either percent or value, how the value field should be interpreted
   expires	datetime	optional field to set when the promocode expires
   value	decimal	the value for the promocode, such as 100 or 0.50
   bound	boolean	if true then the promocode can only be used by the specified user in the user field
   user	foreign key	set when bound to a user
   repeat	integer	if 0 the promocode can be used infinitely, otherwise it specifies how often any system user can use it

2. ClaimedPromoCode - to track when a user redeems a promocode.

   Field	Type	Meaning
   redeemed	datetime	automatically set when a promocode is redeemed
   promocode	foreign key	automatically set to point at the promocode when redeemed
   user	foreign key	automatically set to point at the promocode when redeemed
   typeOfPayment	string	what type of payment method did the user use when reddeming the code
   company	string	name of the business company that handeled the transaction
   item	string	what did the user buy? a ticket? clothes?
   service	string	what type of service is this?
   total_price	integer	how much does the transaction cost?