Contract con_uw_set_nickname


Contract Code


  
1 import currency
2 import con_uwarriors_lst001
3
4
5 metadata = Hash(default_value=0)
6 nicks = Hash(default_value=0)
7 wp = ForeignHash(foreign_contract='con_uwarriors_lst001', foreign_name='balances')
8
9 @construct
10 def seed():
11 metadata['operator'] = ctx.caller
12 metadata['cost'] = 70
13 metadata['recost'] = 40
14
15
16 @export
17 def set_nick_name(nickname: str):
18 caller = ctx.caller
19 amount = metadata['cost']
20
21 if nicks[caller, 'pay'] == True:
22 amount = metadata['recost']
23
24 assert wp[caller] > amount , 'Not enough coins to send!'
25 assert len(nickname) <= 25, 'Nickname too long (25 chars max).'
26 assert len(nickname) > 0, 'Nickname too short.'
27 names_uid = hashlib.sha256(nickname.lower().replace(' ', ''))
28 assert not nicks['nicknames', names_uid], 'A form of this name already belongs to ' + nicks['nicknames', names_uid]
29
30 con_uwarriors_lst001.transfer_from(amount, metadata['operator'], caller)
31 nicks[caller, 'nickname'] = nickname
32 nicks['nicknames', names_uid] = nickname
33 nicks[caller, 'pay'] = True
34
35
36 @export
37 def change_nick_name(nickname: str, change: str):
38 assert ctx.caller == metadata['operator'], 'Only operator can set metadata!'
39 assert len(nickname) <= 25, 'Nickname too long (25 chars max).'
40 assert len(nickname) > 0, 'Nickname too short.'
41 names_uid = hashlib.sha256(nickname.lower().replace(' ', ''))
42 assert not nicks['nicknames', names_uid], 'A form of this name already belongs to ' + nicks['nicknames', names_uid]
43 nicks[nickname, 'nickname'] = change
44 nicks['nicknames', names_uid] = change
45
46

Byte Code

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