我相信你不能用数组参数来做到这一点link_to
。您必须使用polymorphic_path
或new_admin_bio_path({bio_type: params[:bio_type]})
原因是link_to
调用url_for
with [:new, :admin, :bio, { bio_type: params[:bio_type] }]
,它调用polymorphic_path
这些参数。
检查url_for和polymorphic_url的源代码。请注意,这polymorphic_url
需要 2 个参数 -record_or_hash_or_array
和options
,但url_for
仅使用一个参数调用它。
def url_for(options = {})
options ||= {}
case options
when String
options
when Hash
options = options.symbolize_keys.reverse_merge!(:only_path => options[:host].nil?)
super
when :back
controller.request.env["HTTP_REFERER"] || 'javascript:history.back()'
else
polymorphic_path(options)
end
end
def polymorphic_path(record_or_hash_or_array, options = {})
polymorphic_url(record_or_hash_or_array, options.merge(:routing_type => :path))
end
def polymorphic_url(record_or_hash_or_array, options = {})
if record_or_hash_or_array.kind_of?(Array)
record_or_hash_or_array = record_or_hash_or_array.compact
if record_or_hash_or_array.first.is_a?(ActionDispatch::Routing::RoutesProxy)
proxy = record_or_hash_or_array.shift
end
record_or_hash_or_array = record_or_hash_or_array[0] if record_or_hash_or_array.size == 1
end
record = extract_record(record_or_hash_or_array)
record = convert_to_model(record)
args = Array === record_or_hash_or_array ?
record_or_hash_or_array.dup :
[ record_or_hash_or_array ]
inflection = if options[:action] && options[:action].to_s == "new"
args.pop
:singular
elsif (record.respond_to?(:persisted?) && !record.persisted?)
args.pop
:plural
elsif record.is_a?(Class)
args.pop
:plural
else
:singular
end
args.delete_if {|arg| arg.is_a?(Symbol) || arg.is_a?(String)}
named_route = build_named_route_call(record_or_hash_or_array, inflection, options)
url_options = options.except(:action, :routing_type)
unless url_options.empty?
args.last.kind_of?(Hash) ? args.last.merge!(url_options) : args << url_options
end
args.collect! { |a| convert_to_model(a) }
(proxy || self).send(named_route, *args)
end
因此,使用该选项的正确调用scope
听起来应该像
polymorphic_path([:new, :admin, :bio], bio_type: params[:bio_type])