block-submission-based-on-field.js

jQuery(document).ready(function($) {
  //variable to prevent blocking all
  var blockedOnce = false;
  $(document).on("cf.ajax.request", function(e, obj) {
    //only block submission once
    if (!blockedOnce) {
      //Make sure window.cf2 is set properly
      if (!window.cf2) {
        window.cf2 = {};
      }
      var formId = obj.formIdAttr;

      if (!window.cf2[formId]) {
        window.cf2[formId] = {};
      }

      if (!window.cf2[formId].hasOwnProperty("fieldsBlocking")) {
        window.cf2[formId].fieldsBlocking = obj.fieldsBlocking || [];
      }
      //end hacks caused by not paying down this debt before CF Stripe update

      //block submission based on a field
      window.cf2[formId].fieldsBlocking.push("fld_6866745_1");
      //Set flag to prevent recurssion
      blockedOnce = true;

      //For testing purposes, re-submit in 2 seconds
      setTimeout(function() {
        //unblock
        window.cf2[formId].fieldsBlocking = [];
        //resubmit
        obj.$form.submit();
      }, 2000);
    }
  });
});