diff options
Diffstat (limited to 'actionview/lib/action_view')
| -rw-r--r-- | actionview/lib/action_view/helpers/cache_helper.rb | 15 | ||||
| -rw-r--r-- | actionview/lib/action_view/template.rb | 17 | ||||
| -rw-r--r-- | actionview/lib/action_view/template/handlers/erb.rb | 11 |
3 files changed, 37 insertions, 6 deletions
diff --git a/actionview/lib/action_view/helpers/cache_helper.rb b/actionview/lib/action_view/helpers/cache_helper.rb index 8945575860..797d029317 100644 --- a/actionview/lib/action_view/helpers/cache_helper.rb +++ b/actionview/lib/action_view/helpers/cache_helper.rb @@ -137,6 +137,21 @@ module ActionView # The automatic cache multi read can be turned off like so: # # <%= render @notifications, cache: false %> + # + # === Explicit Collection Caching + # + # If the partial template doesn't start with a clean cache call as + # mentioned above, you can still benefit from collection caching by + # adding a special comment format anywhere in the template, like: + # + # <%# Template Collection: notification %> + # <% my_helper_that_calls_cache(some_arg, notification) do %> + # <%= notification.name %> + # <% end %> + # + # The pattern used to match these is <tt>/# Template Collection: (\S+)/</tt>, + # so it's important that you type it out just so. + # You can only declare one collection in a partial template file. def cache(name = {}, options = {}, &block) if controller.respond_to?(:perform_caching) && controller.perform_caching safe_concat(fragment_for(cache_fragment_name(name, options), options, &block)) diff --git a/actionview/lib/action_view/template.rb b/actionview/lib/action_view/template.rb index 377ceb534a..d8585514d5 100644 --- a/actionview/lib/action_view/template.rb +++ b/actionview/lib/action_view/template.rb @@ -130,7 +130,7 @@ module ActionView @source = source @identifier = identifier @handler = handler - @cache_name = extract_resource_cache_call_name + @cache_name = extract_resource_cache_name @compiled = false @original_encoding = nil @locals = details[:locals] || [] @@ -351,9 +351,18 @@ module ActionView ActiveSupport::Notifications.instrument("#{action}.action_view", payload, &block) end - def extract_resource_cache_call_name - $1 if @handler.respond_to?(:resource_cache_call_pattern) && - @source =~ @handler.resource_cache_call_pattern + EXPLICIT_COLLECTION = /# Template Collection: (?<resource_name>\w+)/ + + def extract_resource_cache_name + if match = @source.match(EXPLICIT_COLLECTION) || resource_cache_call_match + match[:resource_name] + end + end + + def resource_cache_call_match + if @handler.respond_to?(:resource_cache_call_pattern) + @source.match(@handler.resource_cache_call_pattern) + end end def inferred_cache_name diff --git a/actionview/lib/action_view/template/handlers/erb.rb b/actionview/lib/action_view/template/handlers/erb.rb index da96347e4d..1f8459c24b 100644 --- a/actionview/lib/action_view/template/handlers/erb.rb +++ b/actionview/lib/action_view/template/handlers/erb.rb @@ -125,7 +125,7 @@ module ActionView # Returns Regexp to extract a cached resource's name from a cache call at the # first line of a template. - # The extracted cache name is expected in $1. + # The extracted cache name is captured as :resource_name. # # <% cache notification do %> # => notification # @@ -138,7 +138,14 @@ module ActionView # # <% cache notification.event do %> # => nil def resource_cache_call_pattern - /\A(?:<%#.*%>)*\s*<%\s*cache\(?\s*(\w+)[\s\)]/m + /\A + (?:<%\#.*%>)* # optional initial comment + \s* # followed by optional spaces or newlines + <%\s*cache[\(\s] # followed by an ERB call to cache + \s* # followed by optional spaces or newlines + (?<resource_name>\w+) # capture the cache call argument as :resource_name + [\s\)] # followed by a space or close paren + /xm end private |