javascript Jquery.submit() - 提交前更改表单值
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Jquery.submit() - Changing Form Values before submit
提问by thoughtpunch
I have some javascript that submits to an HTML form in my app upon a "click" event like so....
我有一些 javascript 在“点击”事件时提交到我的应用程序中的 HTML 表单，就像这样......
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.
但是我想在发送之前更改数据。这可能吗？如果可以的话，我不想使用 Ajax $.post。我只想在提交之前更改表单发送到我的 Rails 控制器的内容。
Thanks!
谢谢！
回答by Esailija
If you already have a field with name="search" you can change it's value like so:
如果您已经有一个 name="search" 的字段，您可以像这样更改它的值：
google.maps.event.addListener(marker, 'click', function() {
$('form input[name="search"]').val( place.name );
$('form').submit()
});
Or if not:
或者，如果不是：
google.maps.event.addListener(marker, 'click', function() {
$('form').append('<input type="hidden" name="search" value="'+place.name+'" />').submit()
});
Assuming place.nameis known like in your previous question.
假设place.name在您之前的问题中是已知的。
回答by Gregg B
You can update the value of specific fields by id before you call submit:
您可以在调用 submit 之前通过 id 更新特定字段的值：
$("form #fieldID").val("Value you want to change");
