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ruby-on-railsparamredirecttoaction

ruby - redirect_to(url, :myparam => 'abc')

I can't work this out. 

url = "www.mysite.com/?param1=abc"

redirect_to(url, :param2 => 'xyz')

### Should this go to - www.mysite.com/?param1=abc&param2=xyz

Or am I missing something? It doesn't seem to work?

Solution

  • From the documentation:

    redirect_to(options = {}, response_status = {})

    Redirects the browser to the target specified in options. This parameter can take one of three forms:

    Hash - The URL will be generated by calling url_for with the options.

    Record - The URL will be generated by calling url_for with the options, which will reference a named URL for that record.

    String starting with protocol:// (like http://) or a protocol relative reference (like //) - Is passed straight through as the target for redirection.

    You're passing a String as the first argument, so it's using the 3rd option. Your second parameter is interpreted as the value for the response_status parameter.

    So, if your redirect is an internal one (to the same app), you don't need to specify the scheme and hostname. Just use 

    redirect_to root_url(param1 => 'abc', param2 => 'xyz')

    If it's an external URL, build the complete URL before redirecting:

    url = "www.mysite.com/?param1=abc&params2=xyz"
redirect_to url