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Improve the comment on clear-subsscription-cache!

This commit is contained in:
Mike Thompson 2017-07-18 10:34:14 +10:00
parent dc5fa8b566
commit 53abcfc184
1 changed files with 8 additions and 10 deletions
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18
src/re_frame/subs.cljc
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@ -18,17 +18,15 @@
(def query->reaction (atom {}))
(defn clear-subscription-cache!
"Runs on-dispose for all subscriptions we have in the subscription cache.
Used to force recreation of new subscriptions. Should only be necessary
in development.
"Causes all subscriptions to be removed from the cache.
Does this by:
1. running on-dispose on all cached subscriptions
2. These on-dispose will then do the removal of themselves.
The on-dispose functions for the subscriptions will remove themselves from the
cache.
Useful when reloading Figwheel code after a React exception, as React components
aren't cleaned up properly. This means a subscription's on-dispose function isn't
run when the components are destroyed. If a bad subscription caused your exception,
then you can't fix it without reloading your browser."
This is a development time tool. Useful when reloading Figwheel code
after a React exception, because React components won't have been
cleaned up properly. And this, in turn, means the subscriptions within those
components won't have been cleaned up correctly. So this forces the issue."
[]
(doseq [[k rxn] @query->reaction]
(dispose! rxn))