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Additional RPC for dumping all main storage key pairs under a prefix (#4803)

Browse Source 
* Merge branch 'gav-split-balanecs-vesting' into gav-upsub

# Conflicts:
#	Cargo.lock
#	cli/Cargo.toml
#	collator/Cargo.toml
#	primitives/Cargo.toml
#	runtime/common/Cargo.toml
#	runtime/common/src/claims.rs
#	runtime/kusama/Cargo.toml
#	runtime/polkadot/Cargo.toml
#	service/Cargo.toml

* Update client/src/client.rs

* Update client/src/client.rs

* Fix merge conflict

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
Gavin Wood
2020-02-05 17:27:50 +01:00
committed by GitHub
parent 1185f3ea30
commit 9202cd87e0
5 changed files with 59 additions and 2 deletions
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substrate/client/src/client.rs
+21 -2
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@@ -280,6 +280,22 @@ impl<B, E, Block, RA> Client<B, E, Block, RA> where
Ok(keys)
}
/// Given a `BlockId` and a key prefix, return the matching child storage keys and values in that block.
pub fn storage_pairs(&self, id: &BlockId<Block>, key_prefix: &StorageKey)
-> sp_blockchain::Result<Vec<(StorageKey, StorageData)>>
{
let state = self.state_at(id)?;
let keys = state
.keys(&key_prefix.0)
.into_iter()
.map(|k| {
let d = state.storage(&k).ok().flatten().unwrap_or_default();
(StorageKey(k), StorageData(d))
})
.collect();
Ok(keys)
}
/// Given a `BlockId` and a key prefix, return a `KeyIterator` iterates matching storage keys in that block.
pub fn storage_keys_iter<'a>(
&self,
@@ -296,7 +312,9 @@ impl<B, E, Block, RA> Client<B, E, Block, RA> where
}
/// Given a `BlockId` and a key, return the value under the key in that block.
pub fn storage(&self, id: &BlockId<Block>, key: &StorageKey) -> sp_blockchain::Result<Option<StorageData>> {
pub fn storage(&self, id: &BlockId<Block>, key: &StorageKey)
-> sp_blockchain::Result<Option<StorageData>>
{
Ok(self.state_at(id)?
.storage(&key.0).map_err(|e| sp_blockchain::Error::from_state(Box::new(e)))?
.map(StorageData)
@@ -305,7 +323,8 @@ impl<B, E, Block, RA> Client<B, E, Block, RA> where
/// Given a `BlockId` and a key, return the value under the hash in that block.
pub fn storage_hash(&self, id: &BlockId<Block>, key: &StorageKey)
-> sp_blockchain::Result<Option<Block::Hash>> {
-> sp_blockchain::Result<Option<Block::Hash>>
{
Ok(self.state_at(id)?
.storage_hash(&key.0).map_err(|e| sp_blockchain::Error::from_state(Box::new(e)))?
)