Schemas

---

Calls

---

create_schema

Attributes

Name	Type
model	BoundedVec<u8, T::SchemaModelMaxBytesBoundedVecLimit>
model_type	ModelType
payload_location	PayloadLocation

Python

call = substrate.compose_call(
    'Schemas', 'create_schema', {
    'model': 'Bytes',
    'model_type': (
        'AvroBinary',
        'Parquet',
    ),
    'payload_location': (
        'OnChain',
        'IPFS',
        'Itemized',
        'Paginated',
    ),
}
)

---

create_schema_v2

Attributes

Name	Type
model	BoundedVec<u8, T::SchemaModelMaxBytesBoundedVecLimit>
model_type	ModelType
payload_location	PayloadLocation
settings	BoundedVec<SchemaSetting, T::MaxSchemaSettingsPerSchema>

Python

call = substrate.compose_call(
    'Schemas', 'create_schema_v2', {
    'model': 'Bytes',
    'model_type': (
        'AvroBinary',
        'Parquet',
    ),
    'payload_location': (
        'OnChain',
        'IPFS',
        'Itemized',
        'Paginated',
    ),
    'settings': [
        (
            'AppendOnly',
            'SignatureRequired',
        ),
    ],
}
)

---

create_schema_via_governance

Attributes

Name	Type
creator_key	T::AccountId
model	BoundedVec<u8, T::SchemaModelMaxBytesBoundedVecLimit>
model_type	ModelType
payload_location	PayloadLocation
settings	BoundedVec<SchemaSetting, T::MaxSchemaSettingsPerSchema>

Python

call = substrate.compose_call(
    'Schemas', 'create_schema_via_governance', {
    'creator_key': 'AccountId',
    'model': 'Bytes',
    'model_type': (
        'AvroBinary',
        'Parquet',
    ),
    'payload_location': (
        'OnChain',
        'IPFS',
        'Itemized',
        'Paginated',
    ),
    'settings': [
        (
            'AppendOnly',
            'SignatureRequired',
        ),
    ],
}
)

---

propose_to_create_schema

Attributes

Name	Type
model	BoundedVec<u8, T::SchemaModelMaxBytesBoundedVecLimit>
model_type	ModelType
payload_location	PayloadLocation
settings	BoundedVec<SchemaSetting, T::MaxSchemaSettingsPerSchema>

Python

call = substrate.compose_call(
    'Schemas', 'propose_to_create_schema', {
    'model': 'Bytes',
    'model_type': (
        'AvroBinary',
        'Parquet',
    ),
    'payload_location': (
        'OnChain',
        'IPFS',
        'Itemized',
        'Paginated',
    ),
    'settings': [
        (
            'AppendOnly',
            'SignatureRequired',
        ),
    ],
}
)

---

set_max_schema_model_bytes

Attributes

Name	Type
max_size	u32

Python

call = substrate.compose_call(
    'Schemas', 'set_max_schema_model_bytes', {'max_size': 'u32'}
)

---

Events

---

SchemaCreated

Attributes

Name	Type	Composition
key	T::AccountId	AccountId
schema_id	SchemaId	u16

---

SchemaMaxSizeChanged

Attributes

Name	Type	Composition
max_size	u32	u32

---

Storage functions

---

CurrentSchemaIdentifierMaximum

Python

result = substrate.query(
    'Schemas', 'CurrentSchemaIdentifierMaximum', []
)

Return value

'u16'

---

GovernanceSchemaModelMaxBytes

Python

result = substrate.query(
    'Schemas', 'GovernanceSchemaModelMaxBytes', []
)

Return value

'u32'

---

SchemaInfos

Python

result = substrate.query(
    'Schemas', 'SchemaInfos', ['u16']
)

Return value

{
    'model_type': ('AvroBinary', 'Parquet'),
    'payload_location': ('OnChain', 'IPFS', 'Itemized', 'Paginated'),
    'settings': 'u16',
}

---

SchemaPayloads

Python

result = substrate.query(
    'Schemas', 'SchemaPayloads', ['u16']
)

Return value

'Bytes'

---

Constants

---

MaxSchemaRegistrations

Value

65000

Python

constant = substrate.get_constant('Schemas', 'MaxSchemaRegistrations')

---

MaxSchemaSettingsPerSchema

Value

2

Python

constant = substrate.get_constant('Schemas', 'MaxSchemaSettingsPerSchema')

---

MinSchemaModelSizeBytes

Value

8

Python

constant = substrate.get_constant('Schemas', 'MinSchemaModelSizeBytes')

---

SchemaModelMaxBytesBoundedVecLimit

Value

65500

Python

constant = substrate.get_constant('Schemas', 'SchemaModelMaxBytesBoundedVecLimit')

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Errors

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ExceedsMaxSchemaModelBytes

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InvalidSchema

---

InvalidSetting

---

LessThanMinSchemaModelBytes

---

SchemaCountOverflow

---