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-rw-r--r--actionpack/CHANGELOG.md18
-rw-r--r--actionpack/lib/action_controller/metal/conditional_get.rb46
-rw-r--r--actionpack/test/controller/render_test.rb50
-rw-r--r--actionview/lib/action_view/helpers/tags/base.rb49
-rw-r--r--actionview/lib/action_view/helpers/tags/collection_check_boxes.rb9
-rw-r--r--activesupport/lib/active_support/core_ext/module/delegation.rb36
-rw-r--r--activesupport/test/core_ext/module_test.rb2
7 files changed, 153 insertions, 57 deletions
diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index 8298a199d8..6b2373d0a2 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,21 @@
+* Expand `ActionController::ConditionalGet#fresh_when` and `stale?` to also
+ accept a collection of records as the first argument, so that the
+ following code can be written in a shorter form.
+
+ # Before
+ def index
+ @article = Article.all
+ fresh_when(etag: @articles, last_modified: @articles.maximum(:created_at))
+ end
+
+ # After
+ def index
+ @article = Article.all
+ fresh_when(@articles)
+ end
+
+ *claudiob*
+
* Explicitly ignored wildcard verbs when searching for HEAD routes before fallback
Fixes an issue where a mounted rack app at root would intercept the HEAD
diff --git a/actionpack/lib/action_controller/metal/conditional_get.rb b/actionpack/lib/action_controller/metal/conditional_get.rb
index 3a5929adef..28f0b6e349 100644
--- a/actionpack/lib/action_controller/metal/conditional_get.rb
+++ b/actionpack/lib/action_controller/metal/conditional_get.rb
@@ -57,15 +57,25 @@ module ActionController
# This will render the show template if the request isn't sending a matching ETag or
# If-Modified-Since header and just a <tt>304 Not Modified</tt> response if there's a match.
#
- # You can also just pass a record where +last_modified+ will be set by calling
- # +updated_at+ and the +etag+ by passing the object itself.
+ # You can also just pass a record. In this case +last_modified+ will be set
+ # by calling +updated_at+ and +etag+ by passing the object itself.
#
# def show
# @article = Article.find(params[:id])
# fresh_when(@article)
# end
#
- # When passing a record, you can still set whether the public header:
+ # You can also pass an object that responds to +maximum+, such as a
+ # collection of active records. In this case +last_modified+ will be set by
+ # calling +maximum(:updated_at)+ on the collection (the timestamp of the
+ # most recently updated record) and the +etag+ by passing the object itself.
+ #
+ # def index
+ # @articles = Article.all
+ # fresh_when(@articles)
+ # end
+ #
+ # When passing a record or a collection, you can still set the public header:
#
# def show
# @article = Article.find(params[:id])
@@ -77,8 +87,8 @@ module ActionController
#
# before_action { fresh_when @article, template: 'widgets/show' }
#
- def fresh_when(record = nil, etag: record, last_modified: nil, public: false, template: nil)
- last_modified ||= record.try(:updated_at)
+ def fresh_when(object = nil, etag: object, last_modified: nil, public: false, template: nil)
+ last_modified ||= object.try(:updated_at) || object.try(:maximum, :updated_at)
if etag || template
response.etag = combine_etags(etag: etag, last_modified: last_modified,
@@ -121,8 +131,8 @@ module ActionController
# end
# end
#
- # You can also just pass a record where +last_modified+ will be set by calling
- # +updated_at+ and the +etag+ by passing the object itself.
+ # You can also just pass a record. In this case +last_modified+ will be set
+ # by calling +updated_at+ and +etag+ by passing the object itself.
#
# def show
# @article = Article.find(params[:id])
@@ -135,7 +145,23 @@ module ActionController
# end
# end
#
- # When passing a record, you can still set whether the public header:
+ # You can also pass an object that responds to +maximum+, such as a
+ # collection of active records. In this case +last_modified+ will be set by
+ # calling +maximum(:updated_at)+ on the collection (the timestamp of the
+ # most recently updated record) and the +etag+ by passing the object itself.
+ #
+ # def index
+ # @articles = Article.all
+ #
+ # if stale?(@articles)
+ # @statistics = @articles.really_expensive_call
+ # respond_to do |format|
+ # # all the supported formats
+ # end
+ # end
+ # end
+ #
+ # When passing a record or a collection, you can still set the public header:
#
# def show
# @article = Article.find(params[:id])
@@ -155,8 +181,8 @@ module ActionController
# super if stale? @article, template: 'widgets/show'
# end
#
- def stale?(record = nil, etag: record, last_modified: nil, public: nil, template: nil)
- fresh_when(record, etag: etag, last_modified: last_modified, public: public, template: template)
+ def stale?(object = nil, etag: object, last_modified: nil, public: nil, template: nil)
+ fresh_when(object, etag: etag, last_modified: last_modified, public: public, template: template)
!request.fresh?(response)
end
diff --git a/actionpack/test/controller/render_test.rb b/actionpack/test/controller/render_test.rb
index a5dd96ae91..8d6b62f2bf 100644
--- a/actionpack/test/controller/render_test.rb
+++ b/actionpack/test/controller/render_test.rb
@@ -58,6 +58,27 @@ class TestController < ActionController::Base
end
end
+ class Collection
+ def initialize(records)
+ @records = records
+ end
+
+ def maximum(attribute)
+ @records.max_by(&attribute).public_send(attribute)
+ end
+ end
+
+ def conditional_hello_with_collection_of_records
+ ts = Time.now.utc.beginning_of_day
+
+ record = Struct.new(:updated_at, :cache_key).new(ts, "foo/123")
+ old_record = Struct.new(:updated_at, :cache_key).new(ts - 1.day, "bar/123")
+
+ if stale?(Collection.new([record, old_record]))
+ render action: 'hello_world'
+ end
+ end
+
def conditional_hello_with_expires_in
expires_in 60.1.seconds
render :action => 'hello_world'
@@ -288,7 +309,6 @@ class LastModifiedRenderTest < ActionController::TestCase
assert_equal @last_modified, @response.headers['Last-Modified']
end
-
def test_responds_with_last_modified_with_record
get :conditional_hello_with_record
assert_equal @last_modified, @response.headers['Last-Modified']
@@ -318,6 +338,34 @@ class LastModifiedRenderTest < ActionController::TestCase
assert_equal @last_modified, @response.headers['Last-Modified']
end
+ def test_responds_with_last_modified_with_collection_of_records
+ get :conditional_hello_with_collection_of_records
+ assert_equal @last_modified, @response.headers['Last-Modified']
+ end
+
+ def test_request_not_modified_with_collection_of_records
+ @request.if_modified_since = @last_modified
+ get :conditional_hello_with_collection_of_records
+ assert_equal 304, @response.status.to_i
+ assert @response.body.blank?
+ assert_equal @last_modified, @response.headers['Last-Modified']
+ end
+
+ def test_request_not_modified_but_etag_differs_with_collection_of_records
+ @request.if_modified_since = @last_modified
+ @request.if_none_match = "234"
+ get :conditional_hello_with_collection_of_records
+ assert_response :success
+ end
+
+ def test_request_modified_with_collection_of_records
+ @request.if_modified_since = 'Thu, 16 Jul 2008 00:00:00 GMT'
+ get :conditional_hello_with_collection_of_records
+ assert_equal 200, @response.status.to_i
+ assert @response.body.present?
+ assert_equal @last_modified, @response.headers['Last-Modified']
+ end
+
def test_request_with_bang_gets_last_modified
get :conditional_hello_with_bangs
assert_equal @last_modified, @response.headers['Last-Modified']
diff --git a/actionview/lib/action_view/helpers/tags/base.rb b/actionview/lib/action_view/helpers/tags/base.rb
index 7740c60eac..acc6443a96 100644
--- a/actionview/lib/action_view/helpers/tags/base.rb
+++ b/actionview/lib/action_view/helpers/tags/base.rb
@@ -14,7 +14,7 @@ module ActionView
@object_name.sub!(/\[\]$/,"") || @object_name.sub!(/\[\]\]$/,"]")
@object = retrieve_object(options.delete(:object))
@options = options
- @auto_index = retrieve_autoindex(Regexp.last_match.pre_match) if Regexp.last_match
+ @auto_index = Regexp.last_match ? retrieve_autoindex(Regexp.last_match.pre_match) : nil
end
# This is what child classes implement.
@@ -79,35 +79,30 @@ module ActionView
end
def add_default_name_and_id(options)
- if options.has_key?("index")
- options["name"] ||= options.fetch("name"){ tag_name_with_index(options["index"], options["multiple"]) }
- options["id"] = options.fetch("id"){ tag_id_with_index(options["index"]) }
- options.delete("index")
- elsif defined?(@auto_index)
- options["name"] ||= options.fetch("name"){ tag_name_with_index(@auto_index, options["multiple"]) }
- options["id"] = options.fetch("id"){ tag_id_with_index(@auto_index) }
- else
- options["name"] ||= options.fetch("name"){ tag_name(options["multiple"]) }
- options["id"] = options.fetch("id"){ tag_id }
+ index = name_and_id_index(options)
+ options["name"] = options.fetch("name"){ tag_name(options["multiple"], index) }
+ options["id"] = options.fetch("id"){ tag_id(index) }
+ if namespace = options.delete("namespace")
+ options['id'] = options['id'] ? "#{namespace}_#{options['id']}" : namespace
end
-
- options["id"] = [options.delete('namespace'), options["id"]].compact.join("_").presence
- end
-
- def tag_name(multiple = false)
- "#{@object_name}[#{sanitized_method_name}]#{"[]" if multiple}"
- end
-
- def tag_name_with_index(index, multiple = false)
- "#{@object_name}[#{index}][#{sanitized_method_name}]#{"[]" if multiple}"
end
- def tag_id
- "#{sanitized_object_name}_#{sanitized_method_name}"
+ def tag_name(multiple = false, index = nil)
+ # a little duplication to construct less strings
+ if index
+ "#{@object_name}[#{index}][#{sanitized_method_name}]#{"[]" if multiple}"
+ else
+ "#{@object_name}[#{sanitized_method_name}]#{"[]" if multiple}"
+ end
end
- def tag_id_with_index(index)
- "#{sanitized_object_name}_#{index}_#{sanitized_method_name}"
+ def tag_id(index = nil)
+ # a little duplication to construct less strings
+ if index
+ "#{sanitized_object_name}_#{index}_#{sanitized_method_name}"
+ else
+ "#{sanitized_object_name}_#{sanitized_method_name}"
+ end
end
def sanitized_object_name
@@ -149,6 +144,10 @@ module ActionView
end
option_tags
end
+
+ def name_and_id_index(options)
+ options.key?("index") ? options.delete("index") || "" : @auto_index
+ end
end
end
end
diff --git a/actionview/lib/action_view/helpers/tags/collection_check_boxes.rb b/actionview/lib/action_view/helpers/tags/collection_check_boxes.rb
index 6242a2a085..1765fa6558 100644
--- a/actionview/lib/action_view/helpers/tags/collection_check_boxes.rb
+++ b/actionview/lib/action_view/helpers/tags/collection_check_boxes.rb
@@ -41,14 +41,7 @@ module ActionView
end
def hidden_field
- hidden_name = @html_options[:name]
-
- hidden_name ||= if @options.has_key?(:index)
- "#{tag_name_with_index(@options[:index])}[]"
- else
- "#{tag_name}[]"
- end
-
+ hidden_name = @html_options[:name] || "#{tag_name(false, @options[:index])}[]"
@template_object.hidden_field_tag(hidden_name, "", id: nil)
end
end
diff --git a/activesupport/lib/active_support/core_ext/module/delegation.rb b/activesupport/lib/active_support/core_ext/module/delegation.rb
index 24df83800b..a5f4d03256 100644
--- a/activesupport/lib/active_support/core_ext/module/delegation.rb
+++ b/activesupport/lib/active_support/core_ext/module/delegation.rb
@@ -185,19 +185,31 @@ class Module
# On the other hand it could be that the target has side-effects,
# whereas conceptually, from the user point of view, the delegator should
# be doing one call.
-
- exception = %(raise DelegationError, "#{self}##{method_prefix}#{method} delegated to #{to}.#{method}, but #{to} is nil: \#{self.inspect}")
-
- method_def = [
- "def #{method_prefix}#{method}(#{definition})",
- " _ = #{to}",
- " if !_.nil? || nil.respond_to?(:#{method})",
- " _.#{method}(#{definition})",
- " else",
- " #{exception unless allow_nil}",
- " end",
+ if allow_nil
+ method_def = [
+ "def #{method_prefix}#{method}(#{definition})",
+ "_ = #{to}",
+ "if !_.nil? || nil.respond_to?(:#{method})",
+ " _.#{method}(#{definition})",
+ "end",
"end"
- ].join ';'
+ ].join ';'
+ else
+ exception = %(raise DelegationError, "#{self}##{method_prefix}#{method} delegated to #{to}.#{method}, but #{to} is nil: \#{self.inspect}")
+
+ method_def = [
+ "def #{method_prefix}#{method}(#{definition})",
+ " _ = #{to}",
+ " _.#{method}(#{definition})",
+ "rescue NoMethodError => e",
+ " if _.nil? && e.name == :#{method}",
+ " #{exception}",
+ " else",
+ " raise",
+ " end",
+ "end"
+ ].join ';'
+ end
module_eval(method_def, file, line)
end
diff --git a/activesupport/test/core_ext/module_test.rb b/activesupport/test/core_ext/module_test.rb
index 3c49c4d14f..c9c9b66a6c 100644
--- a/activesupport/test/core_ext/module_test.rb
+++ b/activesupport/test/core_ext/module_test.rb
@@ -78,7 +78,7 @@ Product = Struct.new(:name) do
def type
@type ||= begin
- :thing_without_same_method_name_as_delegated.name
+ nil.type_name
end
end
end