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author | claudiob <claudiob@gmail.com> | 2015-01-06 12:14:49 -0800 |
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committer | claudiob <claudiob@gmail.com> | 2015-02-10 17:08:44 -0800 |
commit | 050fda020606028acffeaaf79e65d6f595856262 (patch) | |
tree | add7803df4e0ccf2b53c1ea8bd25ab19b952d79c /actionmailer/README.rdoc | |
parent | 17d9996c91918df4c32b8ed7c67c2bbe715cfc9d (diff) | |
download | rails-050fda020606028acffeaaf79e65d6f595856262.tar.gz rails-050fda020606028acffeaaf79e65d6f595856262.tar.bz2 rails-050fda020606028acffeaaf79e65d6f595856262.zip |
Accept a collection in fresh_when and stale?
The methods `fresh_when` and `stale?` from ActionController::ConditionalGet
accept a single record as a short form for a hash. For instance
```ruby
def show
@article = Article.find(params[:id])
fresh_when(@article)
end
```
is just a short form for:
```ruby
def show
@article = Article.find(params[:id])
fresh_when(etag: @article, last_modified: @article.created_at)
end
```
This commit extends `fresh_when` and `stale?` to also accept a collection
of records, so that a short form similar to the one above can be used in
an `index` action. After this commit, the following code:
```ruby
def index
@article = Article.all
fresh_when(etag: @articles, last_modified: @articles.maximum(:created_at))
end
```
can be simply written as:
```ruby
def index
@article = Article.all
fresh_when(@articles)
end
```
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