The method namespace_ids_for_offset is intended to get a list of NamespaceIds for a given Transaction offset on a Block Header. Considering implementation details the Block Header doesn't actually have access to this information, based on the discussion here: https://github.com/EspressoSystems/espresso-sequencer/pull/1428#discussion_r1596717521.
Since this method is only utilized for TransactionSummary, TransactionSummary has access to the actual Transaction itself when being constructed, and the implementation details for a Transaction actually has access to its NamespaceId, then we can make this work by creating a trait for the Transaction itself to retrieve its own NamespaceId.
So, we need to remove namespace_ids_for_offset, and create a new trait for a Transaction for use with the Explorer API, that allows us to retrieve the NamespaceId from the transaction itself.
The method
namespace_ids_for_offsetis intended to get a list ofNamespaceIds for a given Transaction offset on a Block Header. Considering implementation details the Block Header doesn't actually have access to this information, based on the discussion here: https://github.com/EspressoSystems/espresso-sequencer/pull/1428#discussion_r1596717521.Since this
methodis only utilized forTransactionSummary,TransactionSummaryhas access to the actualTransactionitself when being constructed, and the implementation details for aTransactionactually has access to itsNamespaceId, then we can make this work by creating atraitfor theTransactionitself to retrieve its ownNamespaceId.So, we need to remove
namespace_ids_for_offset, and create a newtraitfor aTransactionfor use with theExplorer API, that allows us to retrieve theNamespaceIdfrom the transaction itself.