CODEWITHSUNDEEP
javascriptjqueryformshttp-redirect
user3236756
user3236756

Reputation: 79

Need to redirect form to multiple URLs based on input

I have a basic HTML form and I need help creating a bit of JS to redirect my form to different URLs based on the string typed in a text field.

<form class="form-inline">
    <div class="form-group">
        <input type="text">
        <button type="submit">Go</button>
    </div>
</form>

There will be 3 or 4 strings of text - to be entered in the input field - that are "valid" and I need them to make the form redirect to various pages on the site.

For instance, typing valid string "STRING1" would make the page redirect to example.com/something.html on form submit, or "STRING2" to example.com/otherpage.html.

But invalid strings would need to go to a page like "example.com/invalid.html."

The most useful thing I've seen so far is this guide: http://www.dynamicdrive.com/forums/showthread.php?20294-Form-POST-redirect-based-on-radio-button-selected

<script type="text/javascript">
function usePage(frm,nm){
    for (var i_tem = 0, bobs=frm.elements; i_tem < bobs.length; i_tem++)
    if(bobs[i_tem].name==nm&&bobs[i_tem].checked)
    frm.action=bobs[i_tem].value;
 }
</script>

In that code, each radio has a value assigned to it. But this doesn't help with text fields or having a blanket redirect if the string is invalid.

Thanks so much for your help.

Upvotes: 0

Views: 2707

Answers (2)

Mathieu Schaeffer
Mathieu Schaeffer

Reputation: 792

You could define the routes in an object : 

<form class="form-inline">
    <div class="form-group">
         <input type="text">
         <button id="submit-form" type="button">Go</button>
    </div>
</form>

var urlMapping = {
    "STRING1" : "./first.html",
    "STRING2" : "./second.html",
    "STRING3" : "./third.html"
}

$("#submit-form").click(function(){
    var input = $("input").val().trim().toUpperCase();
    if (urlMapping.hasOwnProperty(input)){
        window.location = urlMapping[input];
    }
    else {
        //if url not found, redirect to default url
        window.location = "./default.html";
    }
});

Note : I added .toUpperCase() to make it case-insensitive, so you have to be careful to define the urlMapping keys ("STRING1",..) in uppercase.

Upvotes: 1

Duncan Lukkenaer
Duncan Lukkenaer

Reputation: 14004

This should do what you want:

// Define routing:
var validValues = [{
  value: 'STRING1',
  url: './something.html'
}, {
  value: 'STRING2',
  url: './otherpage.html'
}];

var $myInput = $('#my-input');
$('#my-button').click(function(ev) {
  ev.preventDefault(); // Prevent submitting the form already

  // Look for a valid value
  var url = './invalid.html';
  $.each(validValues, function(i, validValue) {
    if ($myInput.val() === validValue.value) {
      url = validValue.url;
      return false;
    }
  });

  // Submit the form
  $('#my-form').prop('action', url).submit();
  alert('Redirecting to ' + url);
});
<form class="form-inline" id="my-form">
  <div class="form-group">
    <input type="text" id="my-input">
    <button type="submit" id="my-button">Go</button>
  </div>
</form>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

Upvotes: 0

Related Questions