update: function()

in js/projection/row-checkbox.js [31:119]
69 lines of code
10 McCabe index (conditional complexity)

    update: function (options) {
      // Model.__super__.update.call(this, options);

      if (Model.__super__.update.call(this, options)) {
        var model = this.src.data;
        var checkId = this.get('row.check.id');
        var value = model.get('value');
        var ids = _.pluck(value, checkId);
        var checked = _.intersection(this.get('row.check.list'), ids);
        var checkedLookup = _.object(checked, []);
        var col = this.get('column.checked');
        var columns = _.clone(model.get('columns'));
        var checkedAll = value.length > 0;
        var hasCheckboxable = false;
        var checkboxAllow = this.get('row.check.allow');
        var checkboxColumn = _.find(columns, function (item) {
          return item.property === col;
        });
        var isSingle = this.get('row.check.single');

        this.set('row.check.list', checked, { silent: true });

        // todo [akamel] it is not clear how 'hasCheckboxable' is used
        value = _.map(value, function (item) {
          var ret = _.clone(item);
          var checked = false;
          var disabled = true;
          var isAllowed = _.isFunction(checkboxAllow) ? checkboxAllow(ret) : checkboxAllow;

          if (isAllowed) {
            checked = _.has(checkedLookup, ret[checkId]);
            checkedAll = checkedAll && checked;
            disabled = false;
            hasCheckboxable = true;

            var uniqueId = model.get('a11y.selection.uniqueId');
            var labelledId = (uniqueId || '').concat(ret[checkId]);

            ret[col] = _.extend({}, ret[col], {
              $html: selectableTemplate(_.pick({
                type: isSingle ? 'radio' : 'checkbox',
                checked: checked,
                disabled: disabled,
                labelledId: labelledId,
              }, Boolean)),
            });
          }

          return ret;
        });

        // set the checkbox in th
        if (!_.isUndefined(checkboxColumn)) {
          if (isSingle) {
            checkboxColumn.$html = '<span/>';
          } else {
            var disabled = _.size(ids) === 0;
            var labelString = model.get('a11y.selection.selectAllLabel');
            if (hasCheckboxable) {
              checkboxColumn.$html = selectableTemplate(_.pick({
                type: 'checkbox',
                checked: checkedAll,
                disabled: disabled,
                labelString: labelString,
              }, Boolean));
              if (!checkedAll) {
                this.attributes['row.check.checked.all'] = false;
              }
            } else {
              checkboxColumn.$html = selectableTemplate(_.pick({
                type: 'checkbox',
                checked: this.get('row.check.checked.all'),
                disabled: disabled,
                labelString: labelString,
              }, Boolean));
            }
          }
        }

        this.patch({
          value: value,
          columns: columns,
          'row.check.allow': checkboxAllow,
        });
      } else {
        // todo [akamel] unset our properties only
        // this.unset();
      }
    },