HasMigrationRun

Storage Map v273 → v411 Changed in v411

Storage for migration run status.

Explore chain

Queried by: developers

The Big Picture

Internal migration tracking.

Use Cases

Verify migration status

From Chain Metadata

Storage for the migration run status.

Purpose & Usage

Purpose

Tracks which migrations have been applied.

Common Query Patterns

Check migration status by name

Query Keys

#	Name	Type	Description
1	migrationName raw: key1	Vec<u8> Vec Vec<T>	key1 (Vec<u8>)

Stored Value

bool

value (bool)

Code Examples

import { createClient, Binary } from "polkadot-api";
import { getWsProvider } from "polkadot-api/ws";
import { sub } from "@polkadot-api/descriptors"; // generated by: npx papi add sub -w wss://entrypoint-finney.opentensor.ai:443

const client = createClient(getWsProvider("wss://entrypoint-finney.opentensor.ai:443"));
const api = client.getTypedApi(sub);

// Query HasMigrationRun storage
const key1 = Binary.fromOpaque(new Uint8Array(0));

const result = await api.query.Crowdloan.HasMigrationRun.getValue(key1);
console.log("HasMigrationRun:", result);

Version History

Version:

v273 block 5,659,032 Added

v275–v275 · runtime versions skipped on chain (never deployed)

v276 block 5,781,672 Internal re-bind

v278–v289 · runtime versions skipped on chain (never deployed)

v290 block 5,947,548 Internal re-bind

v293–v296 · runtime versions skipped on chain (never deployed)

v297 block 6,067,943 Internal re-bind

v316–v319 · runtime versions skipped on chain (never deployed)

v320 block 6,523,566 Internal re-bind

v324–v325 · runtime versions skipped on chain (never deployed)

v326 block 6,608,228 Internal re-bind

v327–v333 · runtime versions skipped on chain (never deployed)

v334 block 6,811,690 Internal re-bind

v353–v360 · runtime versions skipped on chain (never deployed)

v361 block 7,063,679 Internal re-bind

v363–v364 · runtime versions skipped on chain (never deployed)

v365 block 7,135,419 Internal re-bind

v378–v384 · runtime versions skipped on chain (never deployed)

v385 block 7,782,670 Internal re-bind

v386–v390 · runtime versions skipped on chain (never deployed)

v391 block 7,782,857 Internal re-bind

v394–v400 · runtime versions skipped on chain (never deployed)

v401 block 8,036,576 Internal re-bind

v403–v410 · runtime versions skipped on chain (never deployed)

v411 block 8,283,784 Internal re-bind Current

Runtime Info

Pallet: Crowdloan
Storage Kind: Map
First Version: v273
Current Version: v411

Back to Crowdloan Storage