'formidable' module has a bug, can't parse array when 'multipart/form-data'

[simonhao]

I submit a form. and content-type is 'multipart/form-data'.
such as:

<form>
<input type="file" name="cover"/>
<input type="text" name="city"/> <!--value = beijing-->
<input type="text" name="city"/>  <!-value = shanghai-->
</form>

but i only get a field city=shanghai not a array.
this bug in 'file lib/incoming_form.js' line 82.

[xarguments]

Yes, this comes from this part:

      .on('field', function(name, value) {
        fields[name] = value;
      })

it should be handled like this (like files):

      .on('field', function(name, value) {
          if (fields[name]) {
            if (!Array.isArray(fields[name])) {
              fields[name] = [fields[name]];
            }
            fields[name].push(value);
          } else {
            fields[name] = value;
          }
      })

[tunnckoCore]

Please try npm install formidable@canary - preview of v2. The API is almost the same, check the docs or open new issue if there's some problem.