w8 · tx · EKC···kdc

tx · EKC61cF24UvhESRWABKAvwmG1BiZ1EMjb7zDrUh39kdc

3Mzz3QCpMamT89CaFaovqXpnCdiUaKtLZ4D:  -0.01400000 Waves

2019.06.22 15:29 [553246] smart account 3Mzz3QCpMamT89CaFaovqXpnCdiUaKtLZ4D > SELF 0.00000000 Waves

{
    "type": 13,
    "id": "EKC61cF24UvhESRWABKAvwmG1BiZ1EMjb7zDrUh39kdc",
    "fee": 1400000,
    "feeAssetId": null,
    "timestamp": 1561206552363,
    "version": 1,
    "sender": "3Mzz3QCpMamT89CaFaovqXpnCdiUaKtLZ4D",
    "senderPublicKey": "BJRaSW2saRv7CcFs3mSYpaVFQSFpZq9rGKnCcRKuKgWv",
    "proofs": [
        "3o7ToWRapbUfLVc9g86oxAHhLp4NdAuWzSAJ23uEm6YHVR1TR1zCPH11AQ4Q1acZFsdeacswSW5rBEc5he2BDm9o"
    ],
    "script": "base64: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",
    "chainId": 84,
    "height": 553246,
    "spentComplexity": 0
}

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Diff: 
Old New Differences
9 9  func getKeyItemSupplier (item) = (item + "_owner")
10 10  
11 11  
12 + func getKeyBalanceSupplier (item) = (item + "_balance")
13 + 
14 + 
12 15  func getKeyItemPrice (item) = (item + "_price")
13 16  
14 17  
15 18  func getKeyItemData (item) = (item + "_data")
19 + 
20 + 
21 + func getKeyUserItemCounter (user,item) = (((item + "_") + user) + "_cnt")
16 22  
17 23  
18 24  func getStrByKey (key) = {
26 32      }
27 33  
28 34  
35 + func getNumberByKey (key) = {
36 +     let num =     match getInteger(this, key) {
37 +         case a: Int => 
38 +             a
39 +         case _ => 
40 +             0
41 +     }
42 +     num
43 +     }
44 + 
45 + 
29 46  func getValueItemSupplier (item) = getStrByKey(getKeyItemSupplier(item))
30 47  
31 48  
49 + func getValueItemPrice (item) = getNumberByKey(getKeyItemPrice(item))
50 + 
51 + 
52 + func getValueUserItemCounter (user,item) = getNumberByKey(getKeyUserItemCounter(user, item))
53 + 
54 + 
55 + func getValueBalanceSupplier (account) = getNumberByKey(getKeyBalanceSupplier(account))
56 + 
57 + 
32 58  @Callable(i)
33 - func purchase (type) = {
59 + func purchaseOld (type) = {
34 60      let pmt = extract(i.payment)
35 61      if (isDefined(pmt.assetId))
36 62          then throw("can use WAVES only at the moment")
64 90      }
65 91  
66 92  
93 + 
94 + @Callable(i)
95 + func purchase (item) = {
96 +     let pmt = extract(i.payment)
97 +     if (isDefined(pmt.assetId))
98 +         then throw("WAVES tokens only at the moment")
99 +         else {
100 +             let userAddress = toBase58String(i.caller.bytes)
101 +             let price = getValueItemPrice(item)
102 +             let supplierAddress = getValueItemSupplier(item)
103 +             if ((price > pmt.amount))
104 +                 then throw("purchase amount cannot be less than item price")
105 +                 else if ((pmt.amount > price))
106 +                     then throw("purchase amount cannot be higher than item price")
107 +                     else if ((supplierAddress == NONE))
108 +                         then throw("supplier does not exist")
109 +                         else WriteSet([DataEntry(getKeyUserItemCounter(userAddress, item), (getValueUserItemCounter(userAddress, item) + 1)), DataEntry(getKeyBalanceSupplier(supplierAddress), (getValueBalanceSupplier(supplierAddress) + pmt.amount))])
110 +             }
111 +     }
112 + 
113 + 
Full: 
Old New Differences
1 1  {-# STDLIB_VERSION 3 #-}
2 2  {-# SCRIPT_TYPE ACCOUNT #-}
3 3  {-# CONTENT_TYPE DAPP #-}
4 4  let NONE = "none"
5 5  
6 6  func getKeyItem (supplier,title) = ("item_" + toBase58String(sha256(toBytes((supplier + title)))))
7 7  
8 8  
9 9  func getKeyItemSupplier (item) = (item + "_owner")
10 10  
11 11  
12 + func getKeyBalanceSupplier (item) = (item + "_balance")
13 + 
14 + 
12 15  func getKeyItemPrice (item) = (item + "_price")
13 16  
14 17  
15 18  func getKeyItemData (item) = (item + "_data")
19 + 
20 + 
21 + func getKeyUserItemCounter (user,item) = (((item + "_") + user) + "_cnt")
16 22  
17 23  
18 24  func getStrByKey (key) = {
19 25      let str =     match getString(this, key) {
20 26          case a: String => 
21 27              a
22 28          case _ => 
23 29              NONE
24 30      }
25 31      str
26 32      }
27 33  
28 34  
35 + func getNumberByKey (key) = {
36 +     let num =     match getInteger(this, key) {
37 +         case a: Int => 
38 +             a
39 +         case _ => 
40 +             0
41 +     }
42 +     num
43 +     }
44 + 
45 + 
29 46  func getValueItemSupplier (item) = getStrByKey(getKeyItemSupplier(item))
30 47  
31 48  
49 + func getValueItemPrice (item) = getNumberByKey(getKeyItemPrice(item))
50 + 
51 + 
52 + func getValueUserItemCounter (user,item) = getNumberByKey(getKeyUserItemCounter(user, item))
53 + 
54 + 
55 + func getValueBalanceSupplier (account) = getNumberByKey(getKeyBalanceSupplier(account))
56 + 
57 + 
32 58  @Callable(i)
33 - func purchase (type) = {
59 + func purchaseOld (type) = {
34 60      let pmt = extract(i.payment)
35 61      if (isDefined(pmt.assetId))
36 62          then throw("can use WAVES only at the moment")
37 63          else {
38 64              let customerAddress = toBase58String(i.caller.bytes)
39 65              let price =             match getInteger(this, (("item_" + type) + "_coupon_price")) {
40 66                  case a: Int => 
41 67                      a
42 68                  case _ => 
43 69                      0
44 70              }
45 71              if ((price > pmt.amount))
46 72                  then throw("purschase amount cannot be less than item price")
47 73                  else if ((pmt.amount > price))
48 74                      then throw("purchase amount cannot be higher than item price")
49 75                      else WriteSet([DataEntry(((("status:purchase_item_" + type) + "_customer_") + customerAddress), "confirmed"), DataEntry(((("price:purchase_item_" + type) + "_customer_") + customerAddress), price)])
50 76              }
51 77      }
52 78  
53 79  
54 80  
55 81  @Callable(i)
56 82  func addItem (title,price,data) = {
57 83      let supplierAddress = toBase58String(i.caller.bytes)
58 84      let item = getKeyItem(supplierAddress, title)
59 85      if ((0 >= price))
60 86          then throw("purchase amount cannot be less than item price")
61 87          else if ((getValueItemSupplier(item) != NONE))
62 88              then throw("an items is already exist")
63 89              else WriteSet([DataEntry(getKeyItemSupplier(item), supplierAddress), DataEntry(getKeyItemPrice(item), price), DataEntry(getKeyItemData(item), data)])
64 90      }
65 91  
66 92  
93 + 
94 + @Callable(i)
95 + func purchase (item) = {
96 +     let pmt = extract(i.payment)
97 +     if (isDefined(pmt.assetId))
98 +         then throw("WAVES tokens only at the moment")
99 +         else {
100 +             let userAddress = toBase58String(i.caller.bytes)
101 +             let price = getValueItemPrice(item)
102 +             let supplierAddress = getValueItemSupplier(item)
103 +             if ((price > pmt.amount))
104 +                 then throw("purchase amount cannot be less than item price")
105 +                 else if ((pmt.amount > price))
106 +                     then throw("purchase amount cannot be higher than item price")
107 +                     else if ((supplierAddress == NONE))
108 +                         then throw("supplier does not exist")
109 +                         else WriteSet([DataEntry(getKeyUserItemCounter(userAddress, item), (getValueUserItemCounter(userAddress, item) + 1)), DataEntry(getKeyBalanceSupplier(supplierAddress), (getValueBalanceSupplier(supplierAddress) + pmt.amount))])
110 +             }
111 +     }
112 + 
113 +

Old	New		Differences
9	9		func getKeyItemSupplier (item) = (item + "_owner")
10	10
11	11
	12	+	func getKeyBalanceSupplier (item) = (item + "_balance")
	13	+
	14	+
12	15		func getKeyItemPrice (item) = (item + "_price")
13	16
14	17
15	18		func getKeyItemData (item) = (item + "_data")
	19	+
	20	+
	21	+	func getKeyUserItemCounter (user,item) = (((item + "_") + user) + "_cnt")
16	22
17	23
18	24		func getStrByKey (key) = {

26	32		}
27	33
28	34
	35	+	func getNumberByKey (key) = {
	36	+	let num = match getInteger(this, key) {
	37	+	case a: Int =>
	38	+	a
	39	+	case _ =>
	40	+	0
	41	+	}
	42	+	num
	43	+	}
	44	+
	45	+
29	46		func getValueItemSupplier (item) = getStrByKey(getKeyItemSupplier(item))
30	47
31	48
	49	+	func getValueItemPrice (item) = getNumberByKey(getKeyItemPrice(item))
	50	+
	51	+
	52	+	func getValueUserItemCounter (user,item) = getNumberByKey(getKeyUserItemCounter(user, item))
	53	+
	54	+
	55	+	func getValueBalanceSupplier (account) = getNumberByKey(getKeyBalanceSupplier(account))
	56	+
	57	+
32	58		@Callable(i)
33		-	func ~~purchase~~ (type) = {
	59	+	func purchaseOld (type) = {
34	60		let pmt = extract(i.payment)
35	61		if (isDefined(pmt.assetId))
36	62		then throw("can use WAVES only at the moment")

64	90		}
65	91
66	92
	93	+
	94	+	@Callable(i)
	95	+	func purchase (item) = {
	96	+	let pmt = extract(i.payment)
	97	+	if (isDefined(pmt.assetId))
	98	+	then throw("WAVES tokens only at the moment")
	99	+	else {
	100	+	let userAddress = toBase58String(i.caller.bytes)
	101	+	let price = getValueItemPrice(item)
	102	+	let supplierAddress = getValueItemSupplier(item)
	103	+	if ((price > pmt.amount))
	104	+	then throw("purchase amount cannot be less than item price")
	105	+	else if ((pmt.amount > price))
	106	+	then throw("purchase amount cannot be higher than item price")
	107	+	else if ((supplierAddress == NONE))
	108	+	then throw("supplier does not exist")
	109	+	else WriteSet([DataEntry(getKeyUserItemCounter(userAddress, item), (getValueUserItemCounter(userAddress, item) + 1)), DataEntry(getKeyBalanceSupplier(supplierAddress), (getValueBalanceSupplier(supplierAddress) + pmt.amount))])
	110	+	}
	111	+	}
	112	+
	113	+

Old	New		Differences
1	1		{-# STDLIB_VERSION 3 #-}
2	2		{-# SCRIPT_TYPE ACCOUNT #-}
3	3		{-# CONTENT_TYPE DAPP #-}
4	4		let NONE = "none"
5	5
6	6		func getKeyItem (supplier,title) = ("item_" + toBase58String(sha256(toBytes((supplier + title)))))
7	7
8	8
9	9		func getKeyItemSupplier (item) = (item + "_owner")
10	10
11	11
	12	+	func getKeyBalanceSupplier (item) = (item + "_balance")
	13	+
	14	+
12	15		func getKeyItemPrice (item) = (item + "_price")
13	16
14	17
15	18		func getKeyItemData (item) = (item + "_data")
	19	+
	20	+
	21	+	func getKeyUserItemCounter (user,item) = (((item + "_") + user) + "_cnt")
16	22
17	23
18	24		func getStrByKey (key) = {
19	25		let str = match getString(this, key) {
20	26		case a: String =>
21	27		a
22	28		case _ =>
23	29		NONE
24	30		}
25	31		str
26	32		}
27	33
28	34
	35	+	func getNumberByKey (key) = {
	36	+	let num = match getInteger(this, key) {
	37	+	case a: Int =>
	38	+	a
	39	+	case _ =>
	40	+	0
	41	+	}
	42	+	num
	43	+	}
	44	+
	45	+
29	46		func getValueItemSupplier (item) = getStrByKey(getKeyItemSupplier(item))
30	47
31	48
	49	+	func getValueItemPrice (item) = getNumberByKey(getKeyItemPrice(item))
	50	+
	51	+
	52	+	func getValueUserItemCounter (user,item) = getNumberByKey(getKeyUserItemCounter(user, item))
	53	+
	54	+
	55	+	func getValueBalanceSupplier (account) = getNumberByKey(getKeyBalanceSupplier(account))
	56	+
	57	+
32	58		@Callable(i)
33		-	func ~~purchase~~ (type) = {
	59	+	func purchaseOld (type) = {
34	60		let pmt = extract(i.payment)
35	61		if (isDefined(pmt.assetId))
36	62		then throw("can use WAVES only at the moment")
37	63		else {
38	64		let customerAddress = toBase58String(i.caller.bytes)
39	65		let price = match getInteger(this, (("item_" + type) + "_coupon_price")) {
40	66		case a: Int =>
41	67		a
42	68		case _ =>
43	69		0
44	70		}
45	71		if ((price > pmt.amount))
46	72		then throw("purschase amount cannot be less than item price")
47	73		else if ((pmt.amount > price))
48	74		then throw("purchase amount cannot be higher than item price")
49	75		else WriteSet([DataEntry(((("status:purchase_item_" + type) + "_customer_") + customerAddress), "confirmed"), DataEntry(((("price:purchase_item_" + type) + "_customer_") + customerAddress), price)])
50	76		}
51	77		}
52	78
53	79
54	80
55	81		@Callable(i)
56	82		func addItem (title,price,data) = {
57	83		let supplierAddress = toBase58String(i.caller.bytes)
58	84		let item = getKeyItem(supplierAddress, title)
59	85		if ((0 >= price))
60	86		then throw("purchase amount cannot be less than item price")
61	87		else if ((getValueItemSupplier(item) != NONE))
62	88		then throw("an items is already exist")
63	89		else WriteSet([DataEntry(getKeyItemSupplier(item), supplierAddress), DataEntry(getKeyItemPrice(item), price), DataEntry(getKeyItemData(item), data)])
64	90		}
65	91
66	92
	93	+
	94	+	@Callable(i)
	95	+	func purchase (item) = {
	96	+	let pmt = extract(i.payment)
	97	+	if (isDefined(pmt.assetId))
	98	+	then throw("WAVES tokens only at the moment")
	99	+	else {
	100	+	let userAddress = toBase58String(i.caller.bytes)
	101	+	let price = getValueItemPrice(item)
	102	+	let supplierAddress = getValueItemSupplier(item)
	103	+	if ((price > pmt.amount))
	104	+	then throw("purchase amount cannot be less than item price")
	105	+	else if ((pmt.amount > price))
	106	+	then throw("purchase amount cannot be higher than item price")
	107	+	else if ((supplierAddress == NONE))
	108	+	then throw("supplier does not exist")
	109	+	else WriteSet([DataEntry(getKeyUserItemCounter(userAddress, item), (getValueUserItemCounter(userAddress, item) + 1)), DataEntry(getKeyBalanceSupplier(supplierAddress), (getValueBalanceSupplier(supplierAddress) + pmt.amount))])
	110	+	}
	111	+	}
	112	+
	113	+

github/deemru/w8io/026f985 
34.68 ms ◑