DIV-691,DIV-696: only allow positive integers when user enters number of children

edivorce/apps/core/static/js/main.js

@@ -599,6 +599,16 @@ $(function () {
         $(this).val(value.toFixed(2));
     });
 
+    $('.positive-integer').on('keypress', function(e) {
+        // keyCode [95-105] - number page
+        // keyCode [48-57] - 0-9
+        // keyCode [8] - backspace
+        // keyCode [37-40] - directional arrows
+        if (!((e.which > 95 && e.which < 106) || (e.which > 47 && e.which < 58) || e.which === 8 || (e.keyCode > 36 && e.keyCode < 41))) {
+            e.preventDefault();
+        }
+    });
+
     $('.fact-sheet-input').on('focus', function() {
         $(this).closest('td').addClass('table-cell-active');
     }).on('focusout', function() {

edivorce/apps/core/templates/question/06_children_facts.html

@@ -244,7 +244,7 @@
         (the child spends at least 40 percent of the time with each of you in a year). If you and your spouse
         have a split parenting arrangement for any other children, do not include them in this set of questions.
         </p>
-        {% input_field type="number" name="number_of_children" class="form-control input-narrow" min="0" %}
+        {% input_field type="number" name="number_of_children" class="form-control input-narrow positive-integer" min="0" %}
     </div>
     <br />
 
@@ -582,7 +582,7 @@
                 How many child(ren) are 19 years or older for whom you are asking for support?
             </p>
             <div>
-                {% input_field type="number" name="number_children_over_19_need_support" class="fact-sheet-input input-narrow" %}
+                {% input_field type="number" name="number_children_over_19_need_support" class="fact-sheet-input input-narrow positive-integer" %}
             </div>
         </div>