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https://issues.apache.org/jira/browse/COUCHDB-2511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14244738#comment-14244738
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ASF GitHub Bot commented on COUCHDB-2511:
-----------------------------------------
GitHub user davisp opened a pull request:
https://github.com/apache/couchdb-couch/pull/23
Add IS_OLD_RECORD macro
This can be used in guards to detect if a state variable needs to be
upgraded. An example of it's use might be:
handle_call(Msg, From, St) when ?IS_OLD_RECORD(St, #st{}) ->
handle_call(Msg, From, upgrade_state(St));
This is useful for upgrading any of our various gen behaviors that
aren't properly supervised.
COUCHDB-2511
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/apache/couchdb-couch 2511-add-is-old-record
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/couchdb-couch/pull/23.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #23
----
commit dd83465cee262162bee4819dc21cbca073181861
Author: Paul J. Davis <[email protected]>
Date: 2014-12-12T20:25:38Z
Add IS_OLD_RECORD macro
This can be used in guards to detect if a state variable needs to be
upgraded. An example of it's use might be:
handle_call(Msg, From, St) when ?IS_OLD_RECORD(St, #st{}) ->
handle_call(Msg, From, upgrade_state(St));
This is useful for upgrading any of our various gen behaviors that
aren't properly supervised.
COUCHDB-2511
----
> Add IS_OLD_RECORD macro to couch_db.hrl
> ---------------------------------------
>
> Key: COUCHDB-2511
> URL: https://issues.apache.org/jira/browse/COUCHDB-2511
> Project: CouchDB
> Issue Type: Improvement
> Security Level: public(Regular issues)
> Components: Database Core
> Reporter: Paul Joseph Davis
>
> This is useful for detecting upgrade in our various un-supervised processes.
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