OrmlNFT

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Storage functions

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Classes

Store class info.

Returns None if class info not set or removed.

Python

result = substrate.query(
    'OrmlNFT', 'Classes', ['u32']
)

Return value

{
    'data': {
        'attributes': 'scale_info::276',
        'collection_type': {
            'Collectable': None,
            'Executable': 'Bytes',
            'Wearable': None,
        },
        'deposit': 'u128',
        'is_locked': 'bool',
        'mint_limit': (None, 'u32'),
        'royalty_fee': 'u32',
        'token_type': ('Transferable', 'BoundToAddress'),
        'total_minted_tokens': 'u32',
    },
    'metadata': 'Bytes',
    'owner': 'AccountId',
    'total_issuance': 'u64',
}

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NextClassId

Next available class ID.

Python

result = substrate.query(
    'OrmlNFT', 'NextClassId', []
)

Return value

'u32'

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NextTokenId

Next available token ID.

Python

result = substrate.query(
    'OrmlNFT', 'NextTokenId', ['u32']
)

Return value

'u64'

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StackableCollection

Index stackable collections by (class ID, token ID)

Python

result = substrate.query(
    'OrmlNFT', 'StackableCollection', [('u32', 'u64')]
)

Return value

()

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StackableCollectionsBalances

Index stackable collections balances

Python

result = substrate.query(
    'OrmlNFT', 'StackableCollectionsBalances', ['u32', 'u64', 'AccountId']
)

Return value

'u128'

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Tokens

Store token info.

Returns None if token info not set or removed.

Python

result = substrate.query(
    'OrmlNFT', 'Tokens', ['u32', 'u64']
)

Return value

{
    'data': {
        'attributes': 'scale_info::276',
        'deposit': 'u128',
        'is_locked': 'bool',
    },
    'metadata': 'Bytes',
    'owner': 'AccountId',
}

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TokensByOwner

Token existence check by owner and class ID.

Python

result = substrate.query(
    'OrmlNFT', 'TokensByOwner', ['AccountId', 'u32', 'u64']
)

Return value

()

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Errors

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CannotDestroyClass

Can not destroy class Total issuance is not 0

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ClassNotFound

Class not found

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InvalidStackableNftAmount

Invalid stackable NFT balance

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InvalidStackableNftTransfer

Invalid stackable NFT transfer (stored value is equal to zero)

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MaxMetadataExceeded

Failed because the Maximum amount of metadata was exceeded

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NoAvailableClassId

No available class ID

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NoAvailableTokenId

No available token ID

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NoPermission

The operator is not the owner of the token and has no permission

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StackableCollectionAlreadyExists

The stackable collection already exists

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TokenAlreadyExist

Token already exists

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TokenIdRequired

This collection is not autoincrement id

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TokenNotFound

Token(ClassId, TokenId) not found

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