The Third Bear

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Conditional "followup" questions in ActionKit surveys

egj actionkit

In an ActionKit survey, you may want to create "followup" questions that only appear if the previous question was answered a certain way.  For example, a "What is your favorite color?" question with radio choices for "red", "blue", "green", and "other": if a user chooses "other", then a text field should slide out asking what color they like more.

With some one-time changes to your ActionKit templateset, you can make it relatively easy to create these sorts of conditional followup questions on any survey.  

Configuring them isn't perfectly user-friendly, but should be totally manageable.  You'll just create a survey question as you normally would, but give it a special question name -- following this format, with double underscores preceding the keyword "followup":


So for example, a question of type "text" with this name:


...creates a followup question "favorite_color_other";

...that is hidden by default, and only appears when a user fills in the "favorite_color" question (that you've set up as a conventional survey question);

...and only appears if the user chose "Other" as their answer to the "favorite_color" question.

favorite color example

As I mentioned, you'll need some one-time templateset changes to enable this.  Instead of the default built-in code that just loops through every question and prints its generated HTML:

<div class="ak-field-box ak-field-box-padded ak-styled-fields ak-labels-above {{templateset.custom_fields.field_errors_class|default:"ak-errs-below"}}">

                {% for question in form.surveyquestion_set.all %}
                    <label class="ak-survey-question-label">
                        {{ question.question_label|safe }}
                    {{ question.input_html|safe }}
                {% endfor %}

                <button type="submit" class="ak-submit-button">Submit Survey</button>
</div>'ll need to do a few custom things:

  1. When looping through the questions, check each question's name for the magic "__followup:" syntax.  
  2. If it doesn't appear, just print the question's generated HTML as you normally would. 
  3. If it does appear, then: 
  • Split out the three components of the field name: the "parent" question that it depends on, the answer within the parent question that triggers its appearance, and the conditional field's "real" name.
  • Hide the question completely using some CSS rules
  • Add some custom markup on the question's root node (to be consumed by Javascript) stashing the triggering parent question and answer
  • Print the question's generated HTML as you normally would, 

Here's what that could look like in a custom survey.html template:

<style type="text/css">
input[type=radio] + label {
  margin-bottom: 5px;
.input-parent.survey-followup {
  display: none;
  padding-left: 15px;
<script type="text/javascript">
$(window).load(function() {
  $(".ak-form input").on("change", function() {
    var name = $(this).attr("name").replace(/^action_/, ''),
        answer = $(this).val();
    $(".input-parent.survey-followup[data-parent='"+name+"'][data-parent-answer='"+answer+"'], .input-parent.survey-followup[data-parent='"+name+"'][data-parent-answer='"+answer.trim()+"']").insertAfter($(this).parent()).show(500);

<div class="ak-field-box ak-field-box-padded ak-styled-fields ak-labels-above {{templateset.custom_fields.field_errors_class|default:"ak-errs-below"}}">
{% for question in form.surveyquestion_set.all %}
{% with field_parent=question.field_name|split:"__"|nth:0 field_parent_answer=question.field_name|split:"__"|nth:1|split:"followup:"|nth:1 field_name=question.field_name|split:"__"|nth:2|default:question.field_name %}
   <div class="input-parent {% if "__followup"|is_in:question.field_name %} survey-followup{% endif %}" {% if field_parent %}data-parent="{{ field_parent }}"{% endif %} {% if field_parent_answer %}data-parent-answer="{{ field_parent_answer }}"{% else %}data-parent-any-answer="true"{% endif %}>

    <label for="{{ field_name }}">{{ question.question_label|safe }}</label>
    {{ question.input_html|safe }}
{% endwith %}
{% endfor %}

<button type="submit" class="ak-submit-button">Submit Survey</button>