ParaInherent

---

Calls

---

enter

See [Pallet::enter].

Attributes

Name	Type
data	ParachainsInherentData<HeaderFor<T>>

Python

call = substrate.compose_call(
    'ParaInherent', 'enter', {
    'data': {
        'backed_candidates': [
            {
                'candidate': {
                    'commitments': {
                        'head_data': 'Bytes',
                        'horizontal_messages': [
                            'scale_info::334',
                        ],
                        'hrmp_watermark': 'u32',
                        'new_validation_code': (
                            None,
                            'Bytes',
                        ),
                        'processed_downward_messages': 'u32',
                        'upward_messages': [
                            'Bytes',
                        ],
                    },
                    'descriptor': {
                        'collator': '[u8; 32]',
                        'erasure_root': 'scale_info::12',
                        'para_head': 'scale_info::12',
                        'para_id': 'u32',
                        'persisted_validation_data_hash': 'scale_info::12',
                        'pov_hash': 'scale_info::12',
                        'relay_parent': 'scale_info::12',
                        'signature': '[u8; 64]',
                        'validation_code_hash': 'scale_info::12',
                    },
                },
                'validator_indices': 'BitVec',
                'validity_votes': [
                    {
                        None: None,
                        'Explicit': '[u8; 64]',
                        'Implicit': '[u8; 64]',
                    },
                ],
            },
        ],
        'bitfields': [
            {
                'payload': 'BitVec',
                'signature': '[u8; 64]',
                'validator_index': 'u32',
            },
        ],
        'disputes': [
            {
                'candidate_hash': 'scale_info::12',
                'session': 'u32',
                'statements': [
                    (
                        {
                            'Invalid': 'scale_info::349',
                            'Valid': 'scale_info::347',
                        },
                        'u32',
                        '[u8; 64]',
                    ),
                ],
            },
        ],
        'parent_header': {
            'digest': {
                'logs': [
                    {
                        'Other': 'Bytes',
                        None: None,
                        'Consensus': (
                            '[u8; 4]',
                            'Bytes',
                        ),
                        'PreRuntime': (
                            '[u8; 4]',
                            'Bytes',
                        ),
                        'RuntimeEnvironmentUpdated': None,
                        'Seal': (
                            '[u8; 4]',
                            'Bytes',
                        ),
                    },
                ],
            },
            'extrinsics_root': 'scale_info::12',
            'number': 'u32',
            'parent_hash': 'scale_info::12',
            'state_root': 'scale_info::12',
        },
    },
}
)

---

Storage functions

---

Included

Whether the paras inherent was included within this block.

The Option<()> is effectively a bool, but it never hits storage in the None variant due to the guarantees of FRAME's storage APIs.

If this is None at the end of the block, we panic and render the block invalid.

Python

result = substrate.query(
    'ParaInherent', 'Included', []
)

Return value

()

---

OnChainVotes

Scraped on chain data for extracting resolved disputes as well as backing votes.

Python

result = substrate.query(
    'ParaInherent', 'OnChainVotes', []
)

Return value

{
    'backing_validators_per_candidate': [
        (
            {
                'commitments_hash': 'scale_info::12',
                'descriptor': {
                    'collator': '[u8; 32]',
                    'erasure_root': 'scale_info::12',
                    'para_head': 'scale_info::12',
                    'para_id': 'u32',
                    'persisted_validation_data_hash': 'scale_info::12',
                    'pov_hash': 'scale_info::12',
                    'relay_parent': 'scale_info::12',
                    'signature': '[u8; 64]',
                    'validation_code_hash': 'scale_info::12',
                },
            },
            [('u32', 'scale_info::340')],
        ),
    ],
    'disputes': [
        {
            'candidate_hash': 'scale_info::12',
            'session': 'u32',
            'statements': [('scale_info::346', 'u32', '[u8; 64]')],
        },
    ],
    'session': 'u32',
}

---

Errors

---

BackedByDisabled

A candidate was backed by a disabled validator

---

BackedOnUnscheduledCore

A candidate was backed even though the paraid was not scheduled.

---

CandidateConcludedInvalid

Disputed candidate that was concluded invalid.

---

DisputeInvalid

A dispute statement was invalid.

---

DisputeStatementsUnsortedOrDuplicates

The ordering of dispute statements was invalid.

---

InherentOverweight

The data given to the inherent will result in an overweight block.

---

InvalidParentHeader

The hash of the submitted parent header doesn't correspond to the saved block hash of the parent.

---

TooManyInclusionInherents

Inclusion inherent called more than once per block.

---

UnscheduledCandidate

Too many candidates supplied.

---