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-rw-r--r--actionpack/CHANGELOG.md16
-rw-r--r--actionpack/lib/action_controller/metal/mime_responds.rb13
-rw-r--r--actionpack/lib/action_dispatch/http/mime_negotiation.rb16
-rw-r--r--actionpack/test/dispatch/request_test.rb49
-rw-r--r--activesupport/CHANGELOG.md20
-rw-r--r--activesupport/lib/active_support.rb1
-rw-r--r--activesupport/lib/active_support/array_inquirer.rb38
-rw-r--r--activesupport/lib/active_support/core_ext/array.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/inquiry.rb15
-rw-r--r--activesupport/test/array_inquirer_test.rb35
10 files changed, 171 insertions, 33 deletions
diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index 2cbe09e3e7..0ae96441ce 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,17 @@
+* Provide friendlier access to request variants.
+
+ request.variant = :phone
+ request.variant.phone? # true
+ request.variant.tablet? # false
+
+ request.variant = [:phone, :tablet]
+ request.variant.phone? # true
+ request.variant.desktop? # false
+ request.variant.any?(:phone, :desktop) # true
+ request.variant.any?(:desktop, :watch) # false
+
+ *George Claghorn*
+
* Fix regression where a gzip file response would have a Content-type,
even when it was a 304 status code.
@@ -14,7 +28,7 @@
*Adam Forsyth*
* Drop request class from RouteSet constructor.
-
+
If you would like to use a custom request class, please subclass and implement
the `request_class` method.
diff --git a/actionpack/lib/action_controller/metal/mime_responds.rb b/actionpack/lib/action_controller/metal/mime_responds.rb
index 7dae171215..fab1be3459 100644
--- a/actionpack/lib/action_controller/metal/mime_responds.rb
+++ b/actionpack/lib/action_controller/metal/mime_responds.rb
@@ -288,16 +288,17 @@ module ActionController #:nodoc:
end
def variant
- if @variant.nil?
+ if @variant.empty?
@variants[:none] || @variants[:any]
- elsif (@variants.keys & @variant).any?
- @variant.each do |v|
- return @variants[v] if @variants.key?(v)
- end
else
- @variants[:any]
+ @variants[variant_key]
end
end
+
+ private
+ def variant_key
+ @variant.find { |variant| @variants.key?(variant) } || :any
+ end
end
end
end
diff --git a/actionpack/lib/action_dispatch/http/mime_negotiation.rb b/actionpack/lib/action_dispatch/http/mime_negotiation.rb
index 53a98c5d0a..ff336b7354 100644
--- a/actionpack/lib/action_dispatch/http/mime_negotiation.rb
+++ b/actionpack/lib/action_dispatch/http/mime_negotiation.rb
@@ -10,8 +10,6 @@ module ActionDispatch
self.ignore_accept_header = false
end
- attr_reader :variant
-
# The MIME type of the HTTP request, such as Mime::XML.
#
# For backward compatibility, the post \format is extracted from the
@@ -75,18 +73,22 @@ module ActionDispatch
# Sets the \variant for template.
def variant=(variant)
- if variant.is_a?(Symbol)
- @variant = [variant]
- elsif variant.nil? || variant.is_a?(Array) && variant.any? && variant.all?{ |v| v.is_a?(Symbol) }
- @variant = variant
+ variant = Array(variant)
+
+ if variant.all? { |v| v.is_a?(Symbol) }
+ @variant = ActiveSupport::ArrayInquirer.new(variant)
else
- raise ArgumentError, "request.variant must be set to a Symbol or an Array of Symbols, not a #{variant.class}. " \
+ raise ArgumentError, "request.variant must be set to a Symbol or an Array of Symbols. " \
"For security reasons, never directly set the variant to a user-provided value, " \
"like params[:variant].to_sym. Check user-provided value against a whitelist first, " \
"then set the variant: request.variant = :tablet if params[:variant] == 'tablet'"
end
end
+ def variant
+ @variant ||= ActiveSupport::ArrayInquirer.new
+ end
+
# Sets the \format by string extension, which can be used to force custom formats
# that are not controlled by the extension.
#
diff --git a/actionpack/test/dispatch/request_test.rb b/actionpack/test/dispatch/request_test.rb
index 61cc4dcd7e..ab492665c9 100644
--- a/actionpack/test/dispatch/request_test.rb
+++ b/actionpack/test/dispatch/request_test.rb
@@ -1128,35 +1128,46 @@ class RequestEtag < BaseRequestTest
end
class RequestVariant < BaseRequestTest
- test "setting variant" do
- request = stub_request
+ setup do
+ @request = stub_request
+ end
- request.variant = :mobile
- assert_equal [:mobile], request.variant
+ test 'setting variant to a symbol' do
+ @request.variant = :phone
- request.variant = [:phone, :tablet]
- assert_equal [:phone, :tablet], request.variant
+ assert @request.variant.phone?
+ assert_not @request.variant.tablet?
+ assert @request.variant.any?(:phone, :tablet)
+ assert_not @request.variant.any?(:tablet, :desktop)
+ end
- assert_raise ArgumentError do
- request.variant = [:phone, "tablet"]
- end
+ test 'setting variant to an array of symbols' do
+ @request.variant = [:phone, :tablet]
- assert_raise ArgumentError do
- request.variant = "yolo"
- end
+ assert @request.variant.phone?
+ assert @request.variant.tablet?
+ assert_not @request.variant.desktop?
+ assert @request.variant.any?(:tablet, :desktop)
+ assert_not @request.variant.any?(:desktop, :watch)
end
- test "reset variant" do
- request = stub_request
+ test 'clearing variant' do
+ @request.variant = nil
- request.variant = nil
- assert_equal nil, request.variant
+ assert @request.variant.empty?
+ assert_not @request.variant.phone?
+ assert_not @request.variant.any?(:phone, :tablet)
end
- test "setting variant with non symbol value" do
- request = stub_request
+ test 'setting variant to a non-symbol value' do
+ assert_raise ArgumentError do
+ @request.variant = 'phone'
+ end
+ end
+
+ test 'setting variant to an array containing a non-symbol value' do
assert_raise ArgumentError do
- request.variant = "mobile"
+ @request.variant = [:phone, 'tablet']
end
end
end
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md
index 49088527ae..7eaad6340f 100644
--- a/activesupport/CHANGELOG.md
+++ b/activesupport/CHANGELOG.md
@@ -1,3 +1,23 @@
+* Added `ActiveSupport::ArrayInquirer` and `Array#inquiry`.
+
+ Wrapping an array in an `ArrayInquirer` gives a friendlier way to check its
+ contents:
+
+ variants = ActiveSupport::ArrayInquirer.new([:phone, :tablet])
+
+ variants.phone? # => true
+ variants.tablet? # => true
+ variants.desktop? # => false
+
+ variants.any?(:phone, :tablet) # => true
+ variants.any?(:phone, :desktop) # => true
+ variants.any?(:desktop, :watch) # => false
+
+ `Array#inquiry` is a shortcut for wrapping the receiving array in an
+ `ArrayInquirer`.
+
+ *George Claghorn*
+
* Deprecate `alias_method_chain` in favour of `Module#prepend` introduced in Ruby 2.0
*Kir Shatrov*
diff --git a/activesupport/lib/active_support.rb b/activesupport/lib/active_support.rb
index 290920dbf8..9af3f8b447 100644
--- a/activesupport/lib/active_support.rb
+++ b/activesupport/lib/active_support.rb
@@ -59,6 +59,7 @@ module ActiveSupport
autoload :StringInquirer
autoload :TaggedLogging
autoload :XmlMini
+ autoload :ArrayInquirer
end
autoload :Rescuable
diff --git a/activesupport/lib/active_support/array_inquirer.rb b/activesupport/lib/active_support/array_inquirer.rb
new file mode 100644
index 0000000000..0ae534da00
--- /dev/null
+++ b/activesupport/lib/active_support/array_inquirer.rb
@@ -0,0 +1,38 @@
+module ActiveSupport
+ # Wrapping an array in an +ArrayInquirer+ gives a friendlier way to check
+ # its string-like contents:
+ #
+ # variants = ActiveSupport::ArrayInquirer.new([:phone, :tablet])
+ #
+ # variants.phone? # => true
+ # variants.tablet? # => true
+ # variants.desktop? # => false
+ #
+ # variants.any?(:phone, :tablet) # => true
+ # variants.any?(:phone, :desktop) # => true
+ # variants.any?(:desktop, :watch) # => false
+ class ArrayInquirer < Array
+ def any?(*candidates, &block)
+ if candidates.none?
+ super
+ else
+ candidates.any? do |candidate|
+ include?(candidate) || include?(candidate.to_sym)
+ end
+ end
+ end
+
+ private
+ def respond_to_missing?(name, include_private = false)
+ name[-1] == '?'
+ end
+
+ def method_missing(name, *args)
+ if name[-1] == '?'
+ any?(name[0..-2])
+ else
+ super
+ end
+ end
+ end
+end
diff --git a/activesupport/lib/active_support/core_ext/array.rb b/activesupport/lib/active_support/core_ext/array.rb
index 7d0c1e4c8d..7551551bd7 100644
--- a/activesupport/lib/active_support/core_ext/array.rb
+++ b/activesupport/lib/active_support/core_ext/array.rb
@@ -4,3 +4,4 @@ require 'active_support/core_ext/array/conversions'
require 'active_support/core_ext/array/extract_options'
require 'active_support/core_ext/array/grouping'
require 'active_support/core_ext/array/prepend_and_append'
+require 'active_support/core_ext/array/inquiry'
diff --git a/activesupport/lib/active_support/core_ext/array/inquiry.rb b/activesupport/lib/active_support/core_ext/array/inquiry.rb
new file mode 100644
index 0000000000..de623c466c
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/array/inquiry.rb
@@ -0,0 +1,15 @@
+class Array
+ # Wraps the array in an +ArrayInquirer+ object, which gives a friendlier way
+ # to check its string-like contents.
+ #
+ # pets = [:cat, :dog].inquiry
+ #
+ # pets.cat? # => true
+ # pets.ferret? # => false
+ #
+ # pets.any?(:cat, :ferret) # => true
+ # pets.any?(:ferret, :alligator) # => false
+ def inquiry
+ ActiveSupport::ArrayInquirer.new(self)
+ end
+end
diff --git a/activesupport/test/array_inquirer_test.rb b/activesupport/test/array_inquirer_test.rb
new file mode 100644
index 0000000000..488e0d34a9
--- /dev/null
+++ b/activesupport/test/array_inquirer_test.rb
@@ -0,0 +1,35 @@
+require 'abstract_unit'
+
+class ArrayInquirerTest < ActiveSupport::TestCase
+ def setup
+ @array_inquirer = ActiveSupport::ArrayInquirer.new([:mobile, :tablet])
+ end
+
+ def test_individual
+ assert @array_inquirer.mobile?
+ assert @array_inquirer.tablet?
+ assert_not @array_inquirer.desktop?
+ end
+
+ def test_any
+ assert @array_inquirer.any?(:mobile, :desktop)
+ assert @array_inquirer.any?(:watch, :tablet)
+ assert_not @array_inquirer.any?(:desktop, :watch)
+ end
+
+ def test_any_with_block
+ assert @array_inquirer.any? { |v| v == :mobile }
+ assert_not @array_inquirer.any? { |v| v == :desktop }
+ end
+
+ def test_respond_to
+ assert_respond_to @array_inquirer, :development?
+ end
+
+ def test_inquiry
+ result = [:mobile, :tablet].inquiry
+
+ assert_instance_of ActiveSupport::ArrayInquirer, result
+ assert_equal @array_inquirer, result
+ end
+end