javascript - Jquery.submit() - Changing Form Values before submit - Stack Overflow

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I have some javascript that submits to an HTML form in my app upon a "click" event like so....

google.maps.event.addListener(marker, 'click', function() {
  $('form').submit()
});

However I want to change the data before I send it. Is this possible? I don't want to use Ajax $.post if I can help it. I just want to change what the form sends to my Rails controller before submit.

Thanks!

I have some javascript that submits to an HTML form in my app upon a "click" event like so....

google.maps.event.addListener(marker, 'click', function() {
  $('form').submit()
});

However I want to change the data before I send it. Is this possible? I don't want to use Ajax $.post if I can help it. I just want to change what the form sends to my Rails controller before submit.

Thanks!

• javascript
• jquery
• html

Share Improve this question Follow asked Nov 26, 2011 at 18:56 thoughtpunchthoughtpunch 1,93755 gold badges2525 silver badges4141 bronze badges 1

• Sure, just update the field values before calling ".submit()". – Pointy Commented Nov 26, 2011 at 18:58

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2 Answers 2

Sorted by: Reset to default 6

If you already have a field with name="search" you can change it's value like so:

google.maps.event.addListener(marker, 'click', function() {

   $('form input[name="search"]').val( place.name );
  $('form').submit()
});

Or if not:

google.maps.event.addListener(marker, 'click', function() {

  $('form').append('<input type="hidden" name="search" value="'+place.name+'" />').submit()
});

Assuming place.name is known like in your previous question.

You can update the value of specific fields by id before you call submit:

$("form #fieldID").val("Value you want to change");

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