I want to query the ConvictionVoting.VotingFor storage function to return Polkadot’s voting and delegating history, similar to how the Democracy.VotingOf function works if no parameters are passed.
result = substrate.query_map('ConvictionVoting', 'VotingFor')
However, when I query it with no parameters I get the error below, suggesting I need to pass an address as a parameter.
ValueError Traceback (most recent call last)
Cell In[7], line 4
1 substrate = SubstrateInterface(url = 'wss://rpc.polkadot.io', ss58_format=2,
2 type_registry_preset='polkadot')
----> 4 result = substrate.query_map('ConvictionVoting', 'VotingFor')
File /Python.framework/Versions/3.11/lib/python3.11/site-packages/substrateinterface/base.py:790, in SubstrateInterface.query_map(self, module, storage_function, params, block_hash, max_results, start_key, page_size, ignore_decoding_errors)
787 raise ValueError('Given storage function is not a map')
789 if len(params) != len(param_types) - 1:
--> 790 raise ValueError(f'Storage function map requires {len(param_types) -1} parameters, {len(params)} given')
792 # Generate storage key prefix
793 storage_key = StorageKey.create_from_storage_function(
794 module, storage_function, params, runtime_config=self.runtime_config, metadata=self.metadata
795 )
ValueError: Storage function map requires 1 parameters, 0 given
An equivalent way to do this with the Polkadot JS API could be:
Is it possible to modify my approach so the ConvictionVoting.VotingFor storage function will work as described above and return the desired voting and delegating history without the need to provide any parameters? If so, could you please guide me on how to achieve this, and if not, are there any alternative approaches or workarounds?
arjanz
commented
10 months ago
Hello there,
I want to query the
ConvictionVoting.VotingForstorage function to return Polkadot’s voting and delegating history, similar to how theDemocracy.VotingOffunction works if no parameters are passed.result = substrate.query_map('ConvictionVoting', 'VotingFor')However, when I query it with no parameters I get the error below, suggesting I need to pass an address as a parameter.
An equivalent way to do this with the Polkadot JS API could be:
const voting = await api.query.convictionVoting.votingFor.entries();Is it possible to modify my approach so the
ConvictionVoting.VotingForstorage function will work as described above and return the desired voting and delegating history without the need to provide any parameters? If so, could you please guide me on how to achieve this, and if not, are there any alternative approaches or workarounds?Thanks in advance