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author | Steven Harman <steven@harmanly.com> | 2016-07-26 11:28:03 -0400 |
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committer | Steven Harman <steven@harmanly.com> | 2016-07-26 11:33:34 -0400 |
commit | 87899cfcf0ada140764acf4393eb862698449f54 (patch) | |
tree | 81aaa29290071f035408bdcdefdb685f058bee11 | |
parent | e4a4936244988f76318a0b219a3cc0bcdcdf3e30 (diff) | |
download | rails-87899cfcf0ada140764acf4393eb862698449f54.tar.gz rails-87899cfcf0ada140764acf4393eb862698449f54.tar.bz2 rails-87899cfcf0ada140764acf4393eb862698449f54.zip |
Use to_a to pre-buffer the collection
We can safely assume we're not dealing with an infinite collection as
we're about to call `each` on it and collect the results until it
terminates on its own. Given that, `to_a` is implemented by the normal
Array-like objects, and less Array-like objects like `Enumerator` and
`Enumerator::Lazy`.
-rw-r--r-- | actionview/CHANGELOG.md | 10 | ||||
-rw-r--r-- | actionview/lib/action_view/renderer/partial_renderer.rb | 5 |
2 files changed, 7 insertions, 8 deletions
diff --git a/actionview/CHANGELOG.md b/actionview/CHANGELOG.md index 987d062540..7754bd8dd9 100644 --- a/actionview/CHANGELOG.md +++ b/actionview/CHANGELOG.md @@ -1,11 +1,11 @@ * Changed partial rendering with a collection to allow collections which - don't implement `to_ary`. + implement `to_a`. - Extracting the collection option has an optimization to avoid unnecessary - queries of ActiveRecord Relations by calling `to_ary` on the given + Extracting the collection option had an optimization to avoid unnecessary + queries of ActiveRecord Relations by calling `#to_ary` on the given collection. Instances of `Enumerator` or `Enumerable` are valid - collections, but they do not implement `#to_ary`. They will now be - extracted and rendered as expected. + collections, but they do not implement `#to_ary`. By changing this to + `#to_a`, they will now be extracted and rendered as expected. *Steven Harman* diff --git a/actionview/lib/action_view/renderer/partial_renderer.rb b/actionview/lib/action_view/renderer/partial_renderer.rb index c2b6e6a290..7c2e07185c 100644 --- a/actionview/lib/action_view/renderer/partial_renderer.rb +++ b/actionview/lib/action_view/renderer/partial_renderer.rb @@ -403,9 +403,8 @@ module ActionView def collection_from_options if @options.key?(:collection) - collection = @options[:collection] || [] - collection = collection.to_ary if collection.respond_to?(:to_ary) - collection + collection = @options[:collection] + collection ? collection.to_a : [] end end |