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Migrate pallet-im-online to pallet attribute macro. #8714

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May 5, 2021

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shaunxw
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@shaunxw shaunxw commented May 3, 2021

Part of #7882.

Converts the ImOnline pallet to the new pallet attribute macro introduced in #6877.

Following the upgrade guidelines here: https://crates.parity.io/frame_support/attr.pallet.html#upgrade-guidelines.

⚠️ Breaking Change ⚠️

From https://crates.parity.io/frame_support/attr.pallet.html#checking-upgrade-guidelines

storages now use PalletInfo for module_prefix instead of the one given to decl_storage: Thus any use of this pallet in construct_runtime! should be careful to update name in order not to break storage or to upgrade storage (moreover for instantiable pallet). If pallet is published, make sure to warn about this breaking change.

So users of the ImOnline pallet must be careful about the name they used in construct_runtime!. Hence the runtime-migration label, which might not be needed depending on the configuration of the ImOnline pallet.

@gui1117 gui1117 added A0-please_review Pull request needs code review. B3-apinoteworthy C1-low PR touches the given topic and has a low impact on builders. D5-nicetohaveaudit ⚠️ PR contains trivial changes to logic that should be properly reviewed. labels May 3, 2021
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the test change is wrong, INVALID_VALIDATORS_LEN is matching for a specific value.

and the metadata changed, in general you should compare the metadata before and after the changes to see if storages and types are upgraded correctly.

(both should be fixed by the commits below)

But apart from that it is good to me

frame/im-online/src/lib.rs Outdated Show resolved Hide resolved
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frame/im-online/src/lib.rs Outdated Show resolved Hide resolved
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gui1117 commented May 5, 2021

bot merge

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ghost commented May 5, 2021

Trying merge.

@ghost ghost merged commit 22a86fa into paritytech:master May 5, 2021
@shaunxw shaunxw deleted the sw/migrate-pallet-im-online branch May 9, 2021 01:34
nazar-pc pushed a commit to autonomys/substrate that referenced this pull request Aug 8, 2021
* Migrate pallet-im-online to pallet attribute macro.

* Move validate_unsigned into pallet macro.

* fix metadata

* fix test

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
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