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Update AS::Notifications::Instrumenter#instrument #35705

merged 3 commits into from Mar 22, 2019


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@alimi alimi commented Mar 22, 2019


ActiveSupport::Notifications provides a powerful API for instrumentation by using a publish-subscribe pattern. We could leverage this for more use cases by opening up ActiveSupport::Notifications messaging for things other than instrumentation. To make that happen, I opened this PR to update ActiveSupport::Notifications::Instrumenter#instrument so passing a block is optional. This will let us use #instrument for general messaging in addition to instrumentation.

/cc @tenderlove @eileencodes

  * Update #instrument to make passing a block optional. This will let users
    leverage #instrument for messaging in addition to instrumentation.
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@eileencodes eileencodes left a comment

Can you update the docs and add a changelog?

@@ -20,7 +20,7 @@ def instrument(name, payload = {})
# some of the listeners might have state
listeners_state = start name, payload
yield payload
yield payload if block_given?
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@eileencodes eileencodes Mar 22, 2019

Can you update the docs above this method?

alimi added 2 commits Mar 22, 2019
with change to ActiveSupport::Notifications::Instrumenter#instrument
@rails-bot rails-bot bot added the docs label Mar 22, 2019
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@alimi alimi commented Mar 22, 2019

I updated the changelog and docs in aaf89cd and updated the guides in 7237c7b.

@eileencodes eileencodes merged commit 75f19b5 into rails:master Mar 22, 2019
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@eileencodes eileencodes added this to the 6.0.0 milestone Mar 22, 2019
@alimi alimi mentioned this pull request Mar 22, 2019
@alimi alimi deleted the instrumenter-block-optional branch Mar 22, 2019
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2 participants