Class: ActionDispatch::Response
- Inherits:
-
Rack::Response
- Object
- Rack::Response
- ActionDispatch::Response
- Includes:
- Http::Cache::Response, Setup
- Defined in:
- actionpack/lib/action_dispatch/http/response.rb
Overview
Represents an HTTP response generated by a controller action. One can use an ActionDispatch::Response object to retrieve the current state of the response, or customize the response. An Response object can either represent a "real" HTTP response (i.e. one that is meant to be sent back to the web browser) or a test response (i.e. one that is generated from integration tests). See CgiResponse and TestResponse, respectively.
Response is mostly a Ruby on Rails framework implement detail, and should never be used directly in controllers. Controllers should use the methods defined in ActionController::Base instead. For example, if you want to set the HTTP response's content MIME type, then use ActionControllerBase#headers instead of Response#headers.
Nevertheless, integration tests may want to inspect controller responses in more detail, and that's when Response can be useful for application developers. Integration test methods such as ActionDispatch::Integration::Session#get and ActionDispatch::Integration::Session#post return objects of type TestResponse (which are of course also of type Response).
For example, the following demo integration "test" prints the body of the controller response to the console:
class DemoControllerTest < ActionDispatch::IntegrationTest
def test_print_root_path_to_console
get('/')
puts @response.body
end
end
Defined Under Namespace
Modules: Setup
Constant Summary
- EMPTY =
" "- CONTENT_TYPE =
"Content-Type"
Constants included from Http::Cache::Response
Http::Cache::Response::DEFAULT_CACHE_CONTROL
Instance Attribute Summary (collapse)
-
- (Object) blank
Returns the value of attribute blank.
-
- (Object) charset
Sets the HTTP response's content MIME type.
-
- (Object) content_type
Sets the HTTP response's content MIME type.
-
- (Object) header
(also: #headers=)
writeonly
Sets the attribute header.
-
- (Object) request
Returns the value of attribute request.
-
- (Object) sending_file
writeonly
Sets the attribute sending_file.
Attributes included from Http::Cache::Response
Instance Method Summary (collapse)
- - (Object) body
- - (Object) body=(body)
- - (Object) body_parts
-
- (Object) code
Returns a String to ensure compatibility with Net::HTTPResponse.
-
- (Object) cookies
Returns the response cookies, converted to a Hash of (name => value) pairs.
- - (Object) each(&callback)
- - (Object) location (also: #redirect_url)
- - (Object) location=(url)
- - (Object) message (also: #status_message)
- - (Boolean) respond_to?(method)
-
- (Object) response_code
The response code of the request.
- - (Object) status=(status)
- - (Object) to_a (also: #prepare!)
- - (Object) to_path
- - (Object) write(str)
Methods included from Http::Cache::Response
#etag, #etag=, #etag?, #initialize, #last_modified, #last_modified=, #last_modified?
Methods included from Setup
Constructor Details
This class inherits a constructor from ActionDispatch::Http::Cache::Response
Instance Attribute Details
- (Object) blank
Returns the value of attribute blank
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 37 def blank @blank end |
- (Object) charset
Sets the HTTP response's content MIME type. For example, in the controller you could write this:
response.content_type = "text/plain"
If a character set has been defined for this response (see charset=) then the character set information will also be included in the content type information.
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 134 def charset @charset end |
- (Object) content_type
Sets the HTTP response's content MIME type. For example, in the controller you could write this:
response.content_type = "text/plain"
If a character set has been defined for this response (see charset=) then the character set information will also be included in the content type information.
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 134 def content_type @content_type end |
- (Object) header=(value) (writeonly) Also known as: headers=
Sets the attribute header
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 39 def header=(value) @header = value end |
- (Object) request
Returns the value of attribute request
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 37 def request @request end |
- (Object) sending_file=(value) (writeonly)
Sets the attribute sending_file
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 39 def sending_file=(value) @sending_file = value end |
Instance Method Details
- (Object) body
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 100 def body str = '' each { |part| str << part.to_s } str end |
- (Object) body=(body)
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 108 def body=(body) @blank = true if body == EMPTY @body = body.respond_to?(:to_str) ? [body] : body end |
- (Object) body_parts
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 113 def body_parts @body end |
- (Object) code
Returns a String to ensure compatibility with Net::HTTPResponse
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 79 def code @status.to_s end |
- (Object) cookies
Returns the response cookies, converted to a Hash of (name => value) pairs
assert_equal 'AuthorOfNewPage', r.['author']
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 171 def = {} if header = self["Set-Cookie"] header = header.split("\n") if header.respond_to?(:to_str) header.each do || if pair = .split(';').first key, value = pair.split("=").map { |v| Rack::Utils.unescape(v) } [key] = value end end end end |
- (Object) each(&callback)
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 150 def each(&callback) if @body.respond_to?(:call) @writer = lambda { |x| callback.call(x) } @body.call(self, self) else @body.each { |part| callback.call(part.to_s) } end @writer = callback @block.call(self) if @block end |
- (Object) location Also known as: redirect_url
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 117 def location headers['Location'] end |
- (Object) location=(url)
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 122 def location=(url) headers['Location'] = url end |
- (Object) message Also known as: status_message
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 83 def Rack::Utils::HTTP_STATUS_CODES[@status] end |
- (Boolean) respond_to?(method)
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 88 def respond_to?(method) if method.to_sym == :to_path @body.respond_to?(:to_path) else super end end |
- (Object) response_code
The response code of the request
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 74 def response_code @status end |
- (Object) status=(status)
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 69 def status=(status) @status = Rack::Utils.status_code(status) end |
- (Object) to_a Also known as: prepare!
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 140 def to_a assign_default_content_type_and_charset! handle_conditional_get! self["Set-Cookie"] = self["Set-Cookie"].join("\n") if self["Set-Cookie"].respond_to?(:join) self["ETag"] = @_etag if @_etag super end |
- (Object) to_path
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 96 def to_path @body.to_path end |
- (Object) write(str)
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# File 'actionpack/lib/action_dispatch/http/response.rb', line 162 def write(str) str = str.to_s @writer.call str str end |