Hey valuable Substrate community,
I am running into the problem that I need to iterate over an unbounded
StorageMap. So I need an
IterationLimit and use an extrinsic which gets called multiple times.
The problem is that I can't drain the
StorageMap, because the storage is still required. So I need to iterate and continue iterating in the subsequent calls.
But it is possible that the
StorageMap changes (keys inserted) between the calls that exceed the iteration limit.
Test that fails with the last assert: https://github.com/zeitgeistpm/zeitgeist/blob/f81d03da05f1c3ab75b27af6964594df2dfee6d8/zrml/court/src/tests.rs#L429-L473
With the above test I found out, that new key inserts are not ensured to be inserted after previous key inserts. So I can't use
So my aim is to iterate over all elements and if all elements inside the
StorageMap fulfill a specific condition, then it should return Ok, otherwise it throws and error.