JQUERY show hide FIELDSET depending on RADIO BUTTON

Question

I wanna use JQUERY to show and hide some fieldset inside a form in this way:

PSEUDOCODE:

- if user-type == Company: show("company-fieldset")

- if user-type == Individual:
         - if individual-type == Freelancer: show("freelancer-fieldset")
         - if individual-type == Professor: show("professor-fieldset")
         - if individual-type == Student: show("student-fieldset")

I'm new in using JQUERY but I need a fast way to accomplish this thing, I'll really appreciate if you can help me. Please take into account that: I have to use radio buttons because they're mutual exclusive. Everytime I select a radio-button the form must update real time. Thanks

HTML

<form method="POST">

  <fieldset class="main-fieldset">
    <input type="radio" id="user-type" value="company" checked>Company<br>
    <input type="radio" id="user-type" value="individual">Individual<br>
  </fieldset>

  <fieldset class="company-fieldset">
    <p>Company showed!</p>
  </fieldset>

  <fieldset class="individual-fieldset">
    <p>Individual showed!</p>
    <input type="radio" id="individual-type" value="freelancer" checked>Freelancer<br>
    <input type="radio" id="individual-type" value="professor">Professor<br>
    <input type="radio" id="individual-type" value="student" >Student<br>
  </fieldset>

  <fieldset class="freelancer-fieldset">
    <p>Freelancer showed!</p>
  </fieldset>

  <fieldset class="professor-fieldset">
    <p>Professor showed!</p>
  </fieldset>

  <fieldset class="student-fieldset">
    <p>Student showed!</p>
  </fieldset>

  <fieldset class="main-fieldset">
    <button type="button" onclick="alert('Hello World!')">SUBMIT</button>
  </fieldset>

 </form>

JS

$(document).ready(function() {

    $('#user-type').change(function() {

        var user_type = $(this).attr("value");

        if (user_type === "Company") {
            $('.company-fieldset').show();
            $('.freelancer-fieldset').hide();
            $('.professor-fieldset').hide();
            $('.student-fieldset').hide();
        }

        if (user_type === "Individual") {
            $('.company-fieldset').hide();
            if (user_type === "Freelancer") {
                $('.freelancer-fieldset').show();
                $('.professor-fieldset').hide();
                $('.student-fieldset').hide();
            }
            if (user_type === "Professor") {
                $('.freelancer-fieldset').hide();
                $('.professor-fieldset').show();
                $('.student-fieldset').hide();
            }
            if (user_type === "Student") {
                $('.freelancer-fieldset').dide();
                $('.professor-fieldset').hide();
                $('.student-fieldset').show();
            }
        }
    })
});

Answer 1

No jQuery required here, a little reformat of your HTML and a small sprinkle of CSS.

• I added a name to your radios so that they are grouped by type
• I put the fieldsets after the radio that controls them.

fieldset:not(.main-fieldset) {
  display: none;
}
input[type=radio]:checked + br + fieldset {
  display: block;
}

<form method="POST">

  <fieldset class="main-fieldset">
    <input type="radio" id="user-type" name='user-type' value="company" checked>Company
    <br>
    <fieldset class="company-fieldset">
      <p>Company showed!</p>
    </fieldset>
    <input type="radio" id="user-type" name='user-type' value="individual">Individual
    <br>
    <fieldset class="individual-fieldset">
      <p>Individual showed!</p>
      <input type="radio" id="individual-type" name="individual-type" value="freelancer" checked>Freelancer
      <br>
      <fieldset class="freelancer-fieldset">
        <p>Freelancer showed!</p>
      </fieldset>
      <input type="radio" id="individual-type" name="individual-type" value="professor">Professor
      <br>
      <fieldset class="professor-fieldset">
        <p>Professor showed!</p>
      </fieldset>
      <input type="radio" id="individual-type" name="individual-type" value="student">Student
      <br>
      <fieldset class="student-fieldset">
        <p>Student showed!</p>
      </fieldset>
    </fieldset>
  </fieldset>
  <fieldset class="main-fieldset">
    <button type="button" onclick="alert('Hello World!')">SUBMIT</button>
  </fieldset>

</form>

EDIT: If you can nest the fieldsets in the same parent (looks like you can)

fieldset:not(.main-fieldset) {
  display: none;
}
input[value=company]:checked ~ fieldset[class^=company] {
  display: block;
}
input[value=individual]:checked ~ fieldset[class^=individual] {
  display: block;
}
input[value=freelancer]:checked ~ fieldset[class^=freelancer] {
  display: block;
}
input[value=professor]:checked ~ fieldset[class^=professor] {
  display: block;
}
input[value=student]:checked ~ fieldset[class^=student] {
  display: block;
}

<form method="POST">

  <fieldset class="main-fieldset">
    <input type="radio" name="user-type" value="company" checked>Company
    <br>
    <input type="radio" name="user-type" value="individual">Individual
    <br>
    <fieldset class="company-fieldset">
      <p>Company showed!</p>
    </fieldset>

    <fieldset class="individual-fieldset">
      <p>Individual showed!</p>
      <input type="radio" name="individual-type" value="freelancer" checked>Freelancer
      <br>
      <input type="radio" name="individual-type" value="professor">Professor
      <br>
      <input type="radio" name="individual-type" value="student">Student
      <br>
      <fieldset class="freelancer-fieldset">
        <p>Freelancer showed!</p>
      </fieldset>

      <fieldset class="professor-fieldset">
        <p>Professor showed!</p>
      </fieldset>

      <fieldset class="student-fieldset">
        <p>Student showed!</p>
      </fieldset>
    </fieldset>
  </fieldset>
  <fieldset class="main-fieldset">
    <button type="button" onclick="alert('Hello World!')">SUBMIT</button>
  </fieldset>

</form>

EDIT: if you really must keep the same HTML then jQuery will be required. NOTE: I still had to provide your radio buttons names to make them mutually exclusive.

$(function(){
  $("input[type=radio]").change(function(){
    if($(this).is(":checked")){
      $("fieldset:not(.main-fieldset)").hide();//hide everything
      $(this).parent().show();//show this ones container
      $("fieldset[class^='" + $(this).val() + "']").show(); //show the matching fieldset
      $("fieldset[class^='" + $(this).val() + "']>input:checked").change();//show children as required.
    }
  });
  $("input[value=company]").change();
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form method="POST">

  <fieldset class="main-fieldset">
    <input type="radio" name="user-type" value="company" checked>Company<br>
    <input type="radio" name="user-type" value="individual">Individual<br>
  </fieldset>

  <fieldset class="company-fieldset">
    <p>Company showed!</p>
  </fieldset>

  <fieldset class="individual-fieldset">
    <p>Individual showed!</p>
    <input type="radio" name="individual-type" value="freelancer" checked>Freelancer<br>
    <input type="radio" name="individual-type" value="professor">Professor<br>
    <input type="radio" name="individual-type" value="student" >Student<br>
  </fieldset>

  <fieldset class="freelancer-fieldset">
    <p>Freelancer showed!</p>
  </fieldset>

  <fieldset class="professor-fieldset">
    <p>Professor showed!</p>
  </fieldset>

  <fieldset class="student-fieldset">
    <p>Student showed!</p>
  </fieldset>

  <fieldset class="main-fieldset">
    <button type="button" onclick="alert('Hello World!')">SUBMIT</button>
  </fieldset>

 </form>

Answer 2

Actually my HTML looks like this:

<form method="POST">

        <fieldset class="main-fieldset">
            {{ form.email.label }} {{ form.email() }}
            {{ form.password.label }} {{ form.password() }}
            {{ form.phone.label }} {{ form.phone() }}
            {{ form.location.label }} {{ form.location() }}
            {{ form.user_type.label }} {{ form.user_type(id='user-type') }}
        </fieldset>

        <fieldset class="company-fieldset">
            {{ form.company_name.label }} {{ form.company_name() }}
        </fieldset>

        <fieldset class="individual-fieldset">
            {{ form.name.label }} {{ form.name() }}
            {{ form.surname.label }} {{ form.surname() }}
            {{ form.birth.label }} {{ form.birth() }}
            {{ form.skills.label }} {{ form.skills() }}
            {{ form.individual_type.label }} {{ form.individual_type(id='individual-type') }}

            <fieldset class="freelancer-fieldset">
                {{ form.studio.label }} {{ form.studio() }}
            </fieldset>

            <fieldset class="professor-fieldset">
                {{ form.department.label }} {{ form.department() }}
            </fieldset>

            <fieldset class="student-fieldset">
                {{ form.school.label }} {{ form.school() }}
            </fieldset>
        </fieldset>

        <fieldset class="main-fieldset">
            {{ form.submit() }}
        </fieldset>
</form>

and my JS looks like this:

$(document).ready(function() {

    $("#user_type, #individual_type").change(function() {

        var user_type = $('#user_type').attr("value");

        if (user_type == "company") {
            $('.company-fieldset').show();
            $('.individual-fieldset').hide();
        }

        if (user_type == "individual") {

            $('.company-fieldset').hide();

            var individual_type = $('#individual_type').attr("value");

            if (individual_type == "freelancer") {
                $('.freelancer-fieldset').show();
                $('.professor-fieldset').hide();
                $('.student-fieldset').hide();
            }
            if (individual_type == "professor") {
                $('.freelancer-fieldset').hide();
                $('.professor-fieldset').show();
                $('.student-fieldset').hide();
            }
            if (individual_type == "student") {
                $('.freelancer-fieldset').hide();
                $('.professor-fieldset').hide();
                $('.student-fieldset').show();
            }
        }
    })
});