How to add additional fields after signed-up by third party services?

[juliomac]

On my accounts-password signup, I pretty much could add all extra information for payment I want, but when the user signs-up via Facebook, for instance, it logs without ever asking to fill in these extra fields.

I have added fields to atForm using template, such as on the example below:

 AccountsTemplates.addField({
    _id: 'CardName',
    type: 'text',
    required: true,
    re: /[a-zA-Z\ÁÉÍÓÚÝÂÊÎÔÛÀÈÌÒÙÄËÏÖÜŸÇÃÑÕáéíóúýâêîôûàèìòùäëïöüÿçãñõŒœßØøÅåÆæÞþÐð\s\']{3,}/,
    template: 'GuestCardName'
});

With template:

<template name="GuestCardName">
<div class="form-group">
    <label for="at-field-{{_id}}">Nome no Cartão</label>
    <!-- Pattern of Last name contains \s to allow more than one surname-->
    <input type="text" class="form-control validcolored" id="at-field-{{_id}}" name="at-field-{{_id}}"
    value="julio">
</div>

What is the best strategy?

I though on letting the user logs in with 3rd party service then, when needed, ask to complete with a second payment information form.
Negative: It is not an elegant solution: I can't re-use the templates because of the id="at-field-{{_id}}" that I have to have on addField. Is another a way to re-use it?

An alternative approach would be to have two Signup forms structure (#358), the second only with the missing fields and meld it all up with splendido/meteor-accounts-meld . Think it is a waaay to wild alternative.

As a suggestion, a possible feature for the package would be to have a form state="completeProfile". We could have it in our configuration set as true and add fields only to it.

[splendido]

I know Telescope is doing something like your first proposal (to have a second step with a dedicated form...) but they've change all the code recently and I have no idea where to look for now...

The idea to have a specific internal state to expose just profile fields is a good one!
I'll try to keep it in mind for v2.0