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[doc] Example MBM pallet (#2119)

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## Basic example showcasing a migration using the MBM framework

This PR has been built on top of
https://github.com/paritytech/polkadot-sdk/pull/1781 and adds two new
example crates to the `examples` pallet

### Changes Made:

Added the `pallet-example-mbm` crate: This crate provides a minimal
example of a pallet that uses MBM. It showcases a storage migration
where values are migrated from a `u32` to a `u64`.

---------

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>
This commit is contained in:
Juan Girini
2024-04-04 13:47:24 +02:00
committed by GitHub
parent 0ef37c7540
commit bcb4d137c9
17 changed files with 686 additions and 11 deletions
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substrate/frame/examples/multi-block-migrations/Cargo.toml
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[package]
name = "pallet-example-mbm"
version = "0.1.0"
authors.workspace = true
edition.workspace = true
license = "Apache-2.0"
homepage = "https://substrate.io"
repository.workspace = true
description = "Example FRAME pallet for multi-block migrations"
publish = false
[package.metadata.docs.rs]
targets = ["x86_64-unknown-linux-gnu"]
[dependencies]
codec = { package = "parity-scale-codec", version = "3.6.5", default-features = false }
pallet-migrations = { path = "../../migrations", default-features = false }
frame-support = { path = "../../support", default-features = false }
frame-system = { path = "../../system", default-features = false }
frame-benchmarking = { path = "../../benchmarking", default-features = false, optional = true }
log = { version = "0.4.20", default-features = false }
scale-info = { version = "2.10.0", default-features = false }
sp-io = { path = "../../../primitives/io", default-features = false }
[features]
default = ["std"]
std = [
"codec/std",
"frame-benchmarking?/std",
"frame-support/std",
"frame-system/std",
"log/std",
"pallet-migrations/std",
"scale-info/std",
"sp-io/std",
]
runtime-benchmarks = [
"frame-benchmarking/runtime-benchmarks",
"frame-support/runtime-benchmarks",
"frame-system/runtime-benchmarks",
"pallet-migrations/runtime-benchmarks",
]
try-runtime = [
"frame-support/try-runtime",
"frame-system/try-runtime",
"pallet-migrations/try-runtime",
]