`877dc5d9eb7c`

1 file changed

modifieddoc/demo_milestone1-2.mddiff before after both
30Before we continue, we need to do some preparations in the UI: Add NFT Data types so that the UI knows how to decode them. Go to [Settings-Developer Tab](https://polkadot.js.org/apps/#/settings/developer) and add following types to the JSON object in there:30Before we continue, we need to do some preparations in the UI: Add NFT Data types so that the UI knows how to decode them. Go to [Settings-Developer Tab](https://polkadot.js.org/apps/#/settings/developer) and add following types to the JSON object in there:
31```31```
32{32{
33  "Address": "AccountId",
34  "LookupSource": "AccountId",
35  "Weight": "u32",  
36  "NftItemType": {33  "NftItemType": {
37    "Collection": "u64",34    "Collection": "u64",
38    "Owner": "AccountId",35    "Owner": "AccountId",
39    "Data": "Vec<u8>"36    "Data": "Vec<u8>"
40  },37  },
41  "CollectionType": {38  "CollectionType": {
42    "NextItemId": "u64",
43    "Owner": "AccountId",39    "Owner": "AccountId",
40    "NextItemId": "u64",
44    "CustomDataSize": "u32"41    "CustomDataSize": "u32"
45  }42  },
43  "Address": "AccountId",
44  "LookupSource": "AccountId",
45  "Weight": "u32"
46}46}
47```47```
4848
49**Note: ** In the future we will likely switch to substrate "2.0.0-alpha.7", in which case Weight type should be `u64`.49**Note:** In the future we will likely switch to substrate "2.0.0-alpha.7", in which case Weight type should be `u64`.
5050
51#### CreateCollection51#### CreateCollection
5252
57Also, read the state variable `nft`.`collection` with ID = 1 (Because everything in NFT Palette is numbered from 1, not from 0). You will see something like this:57Also, read the state variable `nft`.`collection` with ID = 1 (Because everything in NFT Palette is numbered from 1, not from 0). You will see something like this:
5858
59```59```
60templateModule.collection: CollectionType60nft.collection: CollectionType
61{61{
62  NextItemId: 0,
63  Owner: 5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY,62  Owner: 5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY,
63  NextItemId: 1,
64  CustomDataSize: 164  CustomDataSize: 1
65}65}
66```66```
70Open extrinsics tab of the [standard UI](https://polkadot.js.org/apps/#/extrinsics). Select `nft` module and `changeCollectionOwner` method. First, try to execute it to change owner to BOB for collection 1 from some different account than ALICE - FERDIE to see that it is not possible because ALICE owns collection 1 and FERDIE is not allowed to give it to BOB. Second, select ALICE as transaction signer and run it again. This time the collection owner changes, which will be reflected if you read the state variable `nft`.`collection` with ID = 1:70Open extrinsics tab of the [standard UI](https://polkadot.js.org/apps/#/extrinsics). Select `nft` module and `changeCollectionOwner` method. First, try to execute it to change owner to BOB for collection 1 from some different account than ALICE - FERDIE to see that it is not possible because ALICE owns collection 1 and FERDIE is not allowed to give it to BOB. Second, select ALICE as transaction signer and run it again. This time the collection owner changes, which will be reflected if you read the state variable `nft`.`collection` with ID = 1:
7171
72```72```
73templateModule.collection: CollectionType73nft.collection: CollectionType
74{74{
75  NextItemId: 0,
76  Owner: 5FHneW46xGXgs5mUiveU4sbTyGBzmstUspZC92UhjJM694ty,75  Owner: 5FHneW46xGXgs5mUiveU4sbTyGBzmstUspZC92UhjJM694ty,
76  NextItemId: 1,
77  CustomDataSize: 177  CustomDataSize: 1
78}78}
79```79```
123Execute extrinsic `nft`.`createItem` from ALICE account. Set properties to `0x01`. Now if you read the chain state `nft`.`balance(<Collection ID>, ALICE)`, it will be equal to 1. Also, you can read chain state `nft`.`itemList(<Collection ID>, 1)`, and it will return data for the token 1:123Execute extrinsic `nft`.`createItem` from ALICE account. Set properties to `0x01`. Now if you read the chain state `nft`.`balance(<Collection ID>, ALICE)`, it will be equal to 1. Also, you can read chain state `nft`.`itemList(<Collection ID>, 1)`, and it will return data for the token 1:
124124
125```125```
126templateModule.itemList: NftItemType126nft.itemList: NftItemType
127{127{
128  Collection: 1,128  Collection: 1,
129  Owner: 5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY,129  Owner: 5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY,
134#### GetOwner134#### GetOwner
135Reading the ownership is done by reading chainstate `nft`.`itemList(<Collection ID>, 1)`. One of the returned fields is Owner:135Reading the ownership is done by reading chainstate `nft`.`itemList(<Collection ID>, 1)`. One of the returned fields is Owner:
136```136```
137templateModule.itemList: NftItemType137nft.itemList: NftItemType
138{138{
139  Collection: 1,139  Collection: 1,
140  Owner: 5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY,140  Owner: 5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY,
145#### Transfer145#### Transfer
146Execute `nft`.`transfer` from ALICE address to transfer token 1 to BOB and check the ownership again:146Execute `nft`.`transfer` from ALICE address to transfer token 1 to BOB and check the ownership again:
147```147```
148templateModule.itemList: NftItemType148nft.itemList: NftItemType
149{149{
150  Collection: 1,150  Collection: 1,
151  Owner: 5FHneW46xGXgs5mUiveU4sbTyGBzmstUspZC92UhjJM694ty,151  Owner: 5FHneW46xGXgs5mUiveU4sbTyGBzmstUspZC92UhjJM694ty,
159159
160Read the chain state `nft`.`balance` for ALICE address and see that she owns 1 token:160Read the chain state `nft`.`balance` for ALICE address and see that she owns 1 token:
161```161```
162templateModule.balance: u64162nft.balance: u64
16311631
164```164```
165165
166#### AddCollectionAdmin166#### AddCollectionAdmin
167Execute `nft`.`AddCollectionAdmin` from ALICE account and let CHARLIE be an admin. Now you can see that CHARLIE can transfer ALICE's token from ALICE's account to EVE and back. Also, you can read admin list from chain state and see that it is not empty:167Execute `nft`.`AddCollectionAdmin` from ALICE account and let CHARLIE be an admin. Now you can see that CHARLIE can transfer ALICE's token from ALICE's account to EVE and back. Also, you can read admin list from chain state and see that it is not empty:
168168
169```169```
170templateModule.adminList: Vec<AccountId>170nft.adminList: Vec<AccountId>
171[171[
172  5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y172  5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y
173]173]
177Execute `nft`.`RemoveCollectionAdmin` from ALICE account to remove CHARLIE from admins. Now you can see that CHARLIE cannot transfer ALICE's tokens anymore. If you read the chan state `nft`.`adminList`, the response will be empty:177Execute `nft`.`RemoveCollectionAdmin` from ALICE account to remove CHARLIE from admins. Now you can see that CHARLIE cannot transfer ALICE's tokens anymore. If you read the chan state `nft`.`adminList`, the response will be empty:
178178
179```179```
180templateModule.adminList: Vec<AccountId>180nft.adminList: Vec<AccountId>
181[]181[]
182```182```
183183
184#### BurnItem184#### BurnItem
185Execute `nft`.`burnItem` from ALICE account to burn token 1, and then read the chain state `nft`.`itemList(<Collection ID>, 1)`. This time the chain state returns default values in fields because token does not exist anymore. You can also check ALICE balance in chain state, now it is equal 0 again.185Execute `nft`.`burnItem` from ALICE account to burn token 1, and then read the chain state `nft`.`itemList(<Collection ID>, 1)`. This time the chain state returns default values in fields because token does not exist anymore. You can also check ALICE balance in chain state, now it is equal 0 again.
186```186```
187templateModule.itemList: NftItemType187nft.itemList: NftItemType
188{188{
189  Collection: 0,189  Collection: 0,
190  Owner: 5C4hrfjw9DjXZTzV3MwzrrAr9P1MJhSrvWGWqi1eSuyUpnhM,190  Owner: 5C4hrfjw9DjXZTzV3MwzrrAr9P1MJhSrvWGWqi1eSuyUpnhM,