diff options
Diffstat (limited to 'activesupport/lib/active_support')
| -rw-r--r-- | activesupport/lib/active_support/cache.rb | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/cache.rb b/activesupport/lib/active_support/cache.rb index 85f462a1b1..f27bac3dca 100644 --- a/activesupport/lib/active_support/cache.rb +++ b/activesupport/lib/active_support/cache.rb @@ -198,10 +198,16 @@ module ActiveSupport # cache.fetch('city') # => "Duckburgh" # # You may also specify additional options via the +options+ argument. - # Setting <tt>force: true</tt> will force a cache miss: + # Setting <tt>force: true</tt> will force a cache miss and return value of + # the block will be written to the cache under the given cache key. # # cache.write('today', 'Monday') - # cache.fetch('today', force: true) # => nil + # cache.fetch('today', force: true) { 'Tuesday' } # => 'Tuesday' + # + # It will raise an argument error if no block is passed to #fetch with + # option <tt>force: true</tt> is set. + # + # cache.fetch('today', force: true) # => ArgumentError: Missing block # # Setting <tt>:compress</tt> will store a large cache entry set by the call # in a compressed format. @@ -292,6 +298,8 @@ module ActiveSupport else save_block_result_to_cache(name, options) { |_name| yield _name } end + elsif options && options[:force] + raise ArgumentError, 'Missing block' else read(name, options) end |