mirror of
https://github.com/rails/rails.git
synced 2022-11-09 12:12:34 -05:00
54 lines
1.6 KiB
Ruby
54 lines
1.6 KiB
Ruby
module ActionController
|
|
module Head
|
|
# Returns a response that has no content (merely headers). The options
|
|
# argument is interpreted to be a hash of header names and values.
|
|
# This allows you to easily return a response that consists only of
|
|
# significant headers:
|
|
#
|
|
# head :created, location: person_path(@person)
|
|
#
|
|
# head :created, location: @person
|
|
#
|
|
# It can also be used to return exceptional conditions:
|
|
#
|
|
# return head(:method_not_allowed) unless request.post?
|
|
# return head(:bad_request) unless valid_request?
|
|
# render
|
|
def head(status, options = {})
|
|
options, status = status, nil if status.is_a?(Hash)
|
|
status ||= options.delete(:status) || :ok
|
|
location = options.delete(:location)
|
|
content_type = options.delete(:content_type)
|
|
|
|
options.each do |key, value|
|
|
headers[key.to_s.dasherize.split('-').each { |v| v[0] = v[0].chr.upcase }.join('-')] = value.to_s
|
|
end
|
|
|
|
self.status = status
|
|
self.location = url_for(location) if location
|
|
|
|
if include_content?(self.status)
|
|
self.content_type = content_type || (Mime[formats.first] if formats)
|
|
self.response.charset = false if self.response
|
|
self.response_body = " "
|
|
else
|
|
headers.delete('Content-Type')
|
|
headers.delete('Content-Length')
|
|
self.response_body = ""
|
|
end
|
|
end
|
|
|
|
private
|
|
# :nodoc:
|
|
def include_content?(status)
|
|
case status
|
|
when 100..199
|
|
false
|
|
when 204, 205, 304
|
|
false
|
|
else
|
|
true
|
|
end
|
|
end
|
|
end
|
|
end
|