Questions tagged [remove-all]
The remove-all tag has no usage guidance.
3
questions
0
votes
1
answer
66
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how to remove Mapping storage when tuple is used as input
Lets assume we have an ink! smart contract
On a vanilla Mapping
alpha: Mapping<[u8;32], Astruct>
we can use
self.alpha.remove(&somehash)
My question is this:
if we have the following ...
- 409
0
votes
1
answer
102
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When to use StorageDoubleMap `clear_prefix` vs `drain_prefix`?
Hey Substrate community,
there are two different methods to remove multiple items for one specific first key from a StorageDoubleMap. There is clear_prefix and drain_prefix. clear_prefix provides ...
- 523
12
votes
1
answer
72
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Multiple remove_all calls in same block
I stumbled upon an unexpected behavior when doing storage migration.
Problem Description
I want to clean-up a large DoubleStorageMap in multiple steps.
And that works just fine, however I also want to ...
- 562