upgrades.js

var H5PUpgrades = H5PUpgrades || {};

H5PUpgrades['H5P.MultiChoice'] = (function ($) {
  return {
    1: {
      1: {
        contentUpgrade: function (parameters, finished) {
          // Moved all behavioural settings into "behaviour" group.
          parameters.behaviour = {
            enableRetry: parameters.tryAgain === undefined ? true : parameters.tryAgain,
            enableSolutionsButton: parameters.enableSolutionsButton === undefined ? true : parameters.enableSolutionsButton,
            singleAnswer: parameters.singleAnswer === undefined ? true : parameters.singleAnswer,
            singlePoint: parameters.singlePoint === undefined ? true : parameters.singlePoint,
            randomAnswers: parameters.randomAnswers === undefined ? true : parameters.randomAnswers,
            showSolutionsRequiresInput: parameters.showSolutionsRequiresInput === undefined ? true : parameters.showSolutionsRequiresInput
          };
          if (parameters.UI === undefined) {
            parameters.UI = {};
          }
          parameters.UI.checkAnswerButton = 'Check';
          delete parameters.tryAgain;
          delete parameters.enableSolutionsButton;
          delete parameters.singleAnswer;
          delete parameters.singlePoint;
          delete parameters.randomAnswers;
          delete parameters.showSolutionsRequiresInput;

          finished(null, parameters);
        }
      },
      3: {
        contentUpgrade: function (parameters, finished) {
          parameters.answers.forEach(function (answer) {
            // Add new place for variable and delete old.
            if (answer.tipsAndFeedback === undefined) {
              answer.tipsAndFeedback = {};
            }

            answer.tipsAndFeedback.tip = answer.tip !== undefined ? answer.tip : '';
            answer.tipsAndFeedback.chosenFeedback = answer.chosenFeedback !== undefined ? answer.chosenFeedback : '';
            answer.tipsAndFeedback.notChosenFeedback = answer.notChosenFeedback !== undefined ? answer.notChosenFeedback : '';
            delete answer.tip;
            delete answer.chosenFeedback;
            delete answer.notChosenFeedback;
          });

          finished(null, parameters);
        }
      },

      /**
       * Asynchronous content upgrade hook.
       * Upgrades content parameters to support MC 1.4.
       *
       * Replaces the single answer checkbox with a select field.
       *
       * @params {Object} parameters
       * @params {function} finished
       */
      4: function (parameters, finished) {
        // Determine number of correct choices
        var numCorrect = 0;
        if (parameters.answers) {
          for (var i = 0; i < parameters.answers.length; i++) {
            if (parameters.answers[i].correct) {
              numCorrect++;
            }
          }
        }

        if (!parameters.behaviour) {
          parameters.behaviour = {};
        }
        if (parameters.behaviour.singleAnswer) {
          parameters.behaviour.type = (numCorrect === 1 ? 'auto' : 'single');
        }
        else {
          parameters.behaviour.type = (numCorrect > 1 ? 'auto' : 'multi');
        }
        delete parameters.behaviour.singleAnswer;

        finished(null, parameters);
      }

    }
  };
})(H5P.jQuery);