Fix #473 -- Internal name for categories and products (#900)

* Fix #473 -- Internal name for categories and products

* fix pdf renderer

src/pretix/api/serializers/item.py

@@ -74,7 +74,7 @@ class ItemSerializer(I18nAwareModelSerializer):
 
     class Meta:
         model = Item
-        fields = ('id', 'category', 'name', 'active', 'description',
+        fields = ('id', 'category', 'name', 'internal_name', 'active', 'description',
                   'default_price', 'free_price', 'tax_rate', 'tax_rule', 'admission',
                   'position', 'picture', 'available_from', 'available_until',
                   'require_voucher', 'hide_without_voucher', 'allow_cancel',
@@ -129,7 +129,7 @@ class ItemCategorySerializer(I18nAwareModelSerializer):
 
     class Meta:
         model = ItemCategory
-        fields = ('id', 'name', 'description', 'position', 'is_addon')
+        fields = ('id', 'name', 'internal_name', 'description', 'position', 'is_addon')
 
 
 class QuestionOptionSerializer(I18nAwareModelSerializer):

src/pretix/base/exporters/json.py

@@ -24,13 +24,15 @@ class JSONExporter(BaseExporter):
                 'categories': [
                     {
                         'id': category.id,
-                        'name': str(category.name)
+                        'name': str(category.name),
+                        'internal_name': category.internal_name
                     } for category in self.event.categories.all()
                 ],
                 'items': [
                     {
                         'id': item.id,
                         'name': str(item.name),
+                        'internal_name': str(item.internal_name),
                         'category': item.category_id,
                         'price': item.default_price,
                         'tax_rate': item.tax_rule.rate if item.tax_rule else Decimal('0.00'),

src/pretix/base/migrations/0090_auto_20180509_0917.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.11 on 2018-05-09 09:17
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('pretixbase', '0089_auto_20180315_1322'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='item',
+            name='internal_name',
+            field=models.CharField(blank=True,
+                                   help_text='If you set this, this will be used instead of the public name in the '
+                                             'backend.',
+                                   max_length=255, null=True, verbose_name='Internal name'),
+        ),
+        migrations.AddField(
+            model_name='itemcategory',
+            name='internal_name',
+            field=models.CharField(blank=True,
+                                   help_text='If you set this, this will be used instead of the public name in the backend.',
+                                   max_length=255, null=True, verbose_name='Internal name'),
+        ),
+    ]

src/pretix/base/models/items.py

@@ -43,6 +43,11 @@ class ItemCategory(LoggedModel):
         max_length=255,
         verbose_name=_("Category name"),
     )
+    internal_name = models.CharField(
+        verbose_name=_("Internal name"),
+        help_text=_("If you set this, this will be used instead of the public name in the backend."),
+        blank=True, null=True, max_length=255
+    )
     description = I18nTextField(
         blank=True, verbose_name=_("Category description")
     )
@@ -63,9 +68,10 @@ class ItemCategory(LoggedModel):
         ordering = ('position', 'id')
 
     def __str__(self):
+        name = self.internal_name or self.name
         if self.is_addon:
-            return _('{category} (Add-On products)').format(category=str(self.name))
-        return str(self.name)
+            return _('{category} (Add-On products)').format(category=str(name))
+        return str(name)
 
     def delete(self, *args, **kwargs):
         super().delete(*args, **kwargs)
@@ -205,6 +211,11 @@ class Item(LoggedModel):
         max_length=255,
         verbose_name=_("Item name"),
     )
+    internal_name = models.CharField(
+        verbose_name=_("Internal name"),
+        help_text=_("If you set this, this will be used instead of the public name in the backend."),
+        blank=True, null=True, max_length=255
+    )
     active = models.BooleanField(
         default=True,
         verbose_name=_("Active"),
@@ -309,7 +320,7 @@ class Item(LoggedModel):
         ordering = ("category__position", "category", "position")
 
     def __str__(self):
-        return str(self.name)
+        return str(self.internal_name or self.name)
 
     def save(self, *args, **kwargs):
         super().save(*args, **kwargs)

src/pretix/base/pdf.py

@@ -46,7 +46,7 @@ DEFAULT_VARIABLES = OrderedDict((
     ("item", {
         "label": _("Product name"),
         "editor_sample": _("Sample product"),
-        "evaluate": lambda orderposition, order, event: str(orderposition.item)
+        "evaluate": lambda orderposition, order, event: str(orderposition.item.name)
     }),
     ("variation", {
         "label": _("Variation name"),
@@ -62,8 +62,8 @@ DEFAULT_VARIABLES = OrderedDict((
         "label": _("Product name and variation"),
         "editor_sample": _("Sample product – sample variation"),
         "evaluate": lambda orderposition, order, event: (
-            '{} - {}'.format(orderposition.item, orderposition.variation)
-            if orderposition.variation else str(orderposition.item)
+            '{} - {}'.format(orderposition.item.name, orderposition.variation)
+            if orderposition.variation else str(orderposition.item.name)
         )
     }),
     ("item_category", {

src/pretix/base/services/stats.py

@@ -10,10 +10,6 @@ from pretix.base.models.orders import OrderFee
 from pretix.base.signals import order_fee_type_name
 
 
-class DummyObject:
-    pass
-
-
 class Dontsum:
     def __init__(self, value: Any):
         self.value = value
@@ -158,8 +154,7 @@ def order_overview(event: Event, subevent: SubEvent=None) -> Tuple[List[Tuple[It
         c[0].num_paid = tuplesum(item.num_paid for item in c[1])
 
     # Payment fees
-    payment_cat_obj = DummyObject()
-    payment_cat_obj.name = _('Fees')
+    payment_cat_obj = _('Fees')
     payment_items = []
 
     if not subevent:
@@ -198,9 +193,8 @@ def order_overview(event: Event, subevent: SubEvent=None) -> Tuple[List[Tuple[It
         names = dict(OrderFee.FEE_TYPES)
 
         for pprov, total in sorted(num_total.items(), key=lambda i: i[0]):
-            ppobj = DummyObject()
             if pprov[0] == OrderFee.FEE_TYPE_PAYMENT:
-                ppobj.name = '{} - {}'.format(names[pprov[0]], provider_names.get(pprov[1], pprov[1]))
+                ppobj = '{} - {}'.format(names[pprov[0]], provider_names.get(pprov[1], pprov[1]))
             else:
                 name = pprov[1]
                 for r, resp in order_fee_type_name.send(sender=event, fee_type=pprov[0], internal_type=pprov[1]):
@@ -208,7 +202,7 @@ def order_overview(event: Event, subevent: SubEvent=None) -> Tuple[List[Tuple[It
                         name = resp
                         break
 
-                ppobj.name = '{} - {}'.format(names[pprov[0]], name)
+                ppobj = '{} - {}'.format(names[pprov[0]], name)
             ppobj.provider = pprov[1]
             ppobj.has_variations = False
             ppobj.num_total = total

src/pretix/control/forms/item.py

@@ -27,6 +27,7 @@ class CategoryForm(I18nModelForm):
         localized_fields = '__all__'
         fields = [
             'name',
+            'internal_name',
             'description',
             'is_addon'
         ]
@@ -90,9 +91,9 @@ class QuotaForm(I18nModelForm):
         for item in items:
             if len(item.variations.all()) > 0:
                 for v in item.variations.all():
-                    choices.append(('{}-{}'.format(item.pk, v.pk), '{} – {}'.format(item.name, v.value)))
+                    choices.append(('{}-{}'.format(item.pk, v.pk), '{} – {}'.format(item, v.value)))
             else:
-                choices.append(('{}'.format(item.pk), item.name))
+                choices.append(('{}'.format(item.pk), str(item)))
 
         self.fields['itemvars'] = forms.MultipleChoiceField(
             label=_('Products'),
@@ -282,6 +283,7 @@ class ItemCreateForm(I18nModelForm):
         localized_fields = '__all__'
         fields = [
             'name',
+            'internal_name',
             'category',
             'admission',
             'default_price',
@@ -308,6 +310,7 @@ class ItemUpdateForm(I18nModelForm):
         fields = [
             'category',
             'name',
+            'internal_name',
             'active',
             'admission',
             'description',

src/pretix/control/forms/orders.py

@@ -144,7 +144,7 @@ class OrderPositionAddForm(forms.Form):
 
         choices = []
         for i in order.event.items.prefetch_related('variations').all():
-            pname = str(i.name)
+            pname = str(i)
             if not i.is_available():
                 pname += ' ({})'.format(_('inactive'))
             variations = list(i.variations.all())
@@ -243,7 +243,7 @@ class OrderPositionChangeForm(forms.Form):
 
         choices = []
         for i in instance.order.event.items.prefetch_related('variations').all():
-            pname = str(i.name)
+            pname = str(i)
             if not i.is_available():
                 pname += ' ({})'.format(_('inactive'))
             variations = list(i.variations.all())

src/pretix/control/forms/subevents.py

@@ -102,7 +102,7 @@ class SubEventItemForm(SubEventItemOrVariationFormMixin, forms.ModelForm):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.fields['price'].widget.attrs['placeholder'] = money_filter(self.item.default_price, self.item.event.currency, hide_currency=True)
-        self.fields['price'].label = str(self.item.name)
+        self.fields['price'].label = str(self.item)
 
     class Meta:
         model = SubEventItem
@@ -116,7 +116,7 @@ class SubEventItemVariationForm(SubEventItemOrVariationFormMixin, forms.ModelFor
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.fields['price'].widget.attrs['placeholder'] = money_filter(self.variation.price, self.item.event.currency, hide_currency=True)
-        self.fields['price'].label = '{} – {}'.format(str(self.item.name), self.variation.value)
+        self.fields['price'].label = '{} – {}'.format(str(self.item), self.variation.value)
 
     class Meta:
         model = SubEventItem

src/pretix/control/forms/vouchers.py

@@ -86,13 +86,13 @@ class VoucherForm(I18nModelForm):
                 itemid, varid = iv.split('-')
                 i = self.instance.event.items.get(pk=itemid)
                 v = i.variations.get(pk=varid)
-                choices.append(('%d-%d' % (i.pk, v.pk), '%s – %s' % (i.name, v.value)))
+                choices.append(('%d-%d' % (i.pk, v.pk), '%s – %s' % (str(i), v.value)))
             elif iv:
                 i = self.instance.event.items.get(pk=iv)
                 if i.variations.exists():
-                    choices.append((str(i.pk), _('{product} – Any variation').format(product=i.name)))
+                    choices.append((str(i.pk), _('{product} – Any variation').format(product=i)))
                 else:
-                    choices.append((str(i.pk), str(i.name)))
+                    choices.append((str(i.pk), str(i)))
 
         self.fields['itemvar'].choices = choices
         self.fields['itemvar'].widget = Select2ItemVarQuota(

src/pretix/control/templates/pretixcontrol/checkin/index.html

@@ -90,7 +90,7 @@
                                     <span class="label label-warning">{% trans "unpaid" %}</span>
                                 {% endif %}
                             </td>
-                            <td>{{ e.item.name }}{% if e.variation %} – {{ e.variation }}{% endif %}</td>
+                            <td>{{ e.item }}{% if e.variation %} – {{ e.variation }}{% endif %}</td>
                             <td>{{ e.order.email }}</td>
                             <td>
                                 {% if e.addon_to %}

src/pretix/control/templates/pretixcontrol/event/base.html

@@ -42,7 +42,7 @@
             <ul class="nav nav-second-level">
                 <li>
                     <a href="{% url 'control:event.items' organizer=request.event.organizer.slug event=request.event.slug %}"
-                            {% if "event.items" == url_name or "event.item." in url_name or url_name == "event.item" %}class="active"{% endif %}>
+                            {% if "event.items" == url_name or "event.item." in url_name or "event.items.add" == url_name or url_name == "event.item" %}class="active"{% endif %}>
                         {% trans "Products" %}</a>
                 </li>
                 <li>

src/pretix/control/templates/pretixcontrol/item/create.html

@@ -10,6 +10,9 @@
         <fieldset>
             <legend>{% trans "General information" %}</legend>
             {% bootstrap_field form.name layout="control" %}
+            <div class="internal-name-wrapper">
+                {% bootstrap_field form.internal_name layout="control" %}
+            </div>
             {% bootstrap_field form.copy_from layout="control" %}
             {% bootstrap_field form.has_variations layout="control" %}
             {% bootstrap_field form.category layout="control" %}

src/pretix/control/templates/pretixcontrol/item/index.html

@@ -9,6 +9,9 @@
                 <fieldset>
                     <legend>{% trans "General information" %}</legend>
                     {% bootstrap_field form.name layout="control" %}
+                    <div class="internal-name-wrapper">
+                        {% bootstrap_field form.internal_name layout="control" %}
+                    </div>
                     {% bootstrap_field form.active layout="control" %}
                     {% bootstrap_field form.category layout="control" %}
                     {% bootstrap_field form.admission layout="control" %}

src/pretix/control/templates/pretixcontrol/items/category.html

@@ -12,6 +12,9 @@
                 <fieldset>
                     <legend>{% trans "General information" %}</legend>
                     {% bootstrap_field form.name layout="control" %}
+                    <div class="internal-name-wrapper">
+                        {% bootstrap_field form.internal_name layout="control" %}
+                    </div>
                     {% bootstrap_field form.description layout="control" %}
                     {% bootstrap_field form.is_addon layout="control" %}
                 </fieldset>

src/pretix/control/templates/pretixcontrol/items/index.html

@@ -48,7 +48,7 @@
                             <td><strong>
                                 {% if not i.active %}<strike>{% endif %}
                                 <a href="
-                        {% url "control:event.item" organizer=request.event.organizer.slug event=request.event.slug item=i.id %}">{{ i.name }}</a>
+                        {% url "control:event.item" organizer=request.event.organizer.slug event=request.event.slug item=i.id %}">{{ i }}</a>
                                 {% if not i.active %}</strike>{% endif %}
                             </strong>
                             </td>

src/pretix/control/templates/pretixcontrol/items/questions.html

@@ -53,7 +53,7 @@
                         <td>
                             <ul>
                                 {% for item in q.items.all %}
-                                    <li><a href="{% url "control:event.item" organizer=request.event.organizer.slug event=request.event.slug item=item.id %}">{{ item.name }}</a></li>
+                                    <li><a href="{% url "control:event.item" organizer=request.event.organizer.slug event=request.event.slug item=item.id %}">{{ item }}</a></li>
                                 {% endfor %}
                             </ul>
                         </td>

src/pretix/control/templates/pretixcontrol/items/quotas.html

@@ -60,7 +60,7 @@
                         <td>
                             <ul>
                                 {% for item in q.items.all %}
-                                    <li><a href="{% url "control:event.item" organizer=request.event.organizer.slug event=request.event.slug item=item.id %}">{{ item.name }}</a></li>
+                                    <li><a href="{% url "control:event.item" organizer=request.event.organizer.slug event=request.event.slug item=item.id %}">{{ item }}</a></li>
                                 {% endfor %}
                             </ul>
                         </td>

src/pretix/control/templates/pretixcontrol/order/change.html

@@ -57,7 +57,7 @@
                 <div class="panel-heading">
                     <h3 class="panel-title">
                         #{{ position.positionid }} –
-                        <strong>{{ position.item.name }}</strong>
+                        <strong>{{ position.item }}</strong>
                         {% if position.variation %}
                             – {{ position.variation }}
                         {% endif %}

src/pretix/control/templates/pretixcontrol/order/change_questions.html

@@ -39,7 +39,7 @@
                 <details class="panel panel-default" open>
                     <summary class="panel-heading">
                         <h4 class="panel-title">
-                            <strong>{{ pos.item.name }}{% if pos.variation %}
+                            <strong>{{ pos.item }}{% if pos.variation %}
                                 – {{ pos.variation }}
                             {% endif %}</strong>
                             <i class="fa fa-angle-down collapse-indicator"></i>

src/pretix/control/templates/pretixcontrol/order/index.html

@@ -189,7 +189,7 @@
                                 {% else %}
                                     #{{ line.positionid }} –
                                 {% endif %}
-                                <strong>{{ line.item.name }}</strong>
+                                <strong>{{ line.item }}</strong>
                                 {% if line.variation %}
                                     – {{ line.variation }}
                                 {% endif %}

src/pretix/control/templates/pretixcontrol/orders/overview.html

@@ -49,7 +49,7 @@
                 {% for tup in items_by_category %}
                     {% if tup.0 %}
                         <tr class="category">
-                            <th>{{ tup.0.name }}</th>
+                            <th>{{ tup.0 }}</th>
                             <th>{{ tup.0.num_canceled|togglesum:request.event.currency }}</th>
                             <th>{{ tup.0.num_refunded|togglesum:request.event.currency }}</th>
                             <th>{{ tup.0.num_expired|togglesum:request.event.currency }}</th>
@@ -60,7 +60,7 @@
                     {% endif %}
                     {% for item in tup.1 %}
                         <tr class="item {% if tup.0 %}categorized{% endif %}">
-                            <td>{{ item.name }}</td>
+                            <td>{{ item }}</td>
                             <td>
                                 <a href="{{ listurl }}?item={{ item.id }}&amp;status=c&amp;provider={{ item.provider }}">
                                     {{ item.num_canceled|togglesum:request.event.currency }}

src/pretix/control/templates/pretixcontrol/waitinglist/index.html

@@ -90,7 +90,7 @@
             {% for item in items %}
                 <option value="{{ item.id }}"
                         {% if request.GET.item|add:0 == item.id %}selected="selected"{% endif %}>
-                    {{ item.name }}
+                    {{ item }}
                 </option>
             {% endfor %}
         </select>

src/pretix/control/views/typeahead.py

@@ -197,12 +197,16 @@ def itemvarquota_select2(request, **kwargs):
                     dt_end = make_aware(datetime.combine(dt.date(), time(hour=23, minute=59, second=59)), tz)
                     quotaf |= Q(subevent__date_from__gte=dt_start) & Q(subevent__date_from__lte=dt_end)
 
-            itemqs = request.event.items.prefetch_related('variations').filter(name__icontains=i18ncomp(query))
+            itemqs = request.event.items.prefetch_related('variations').filter(
+                Q(name__icontains=i18ncomp(query)) | Q(internal_name__icontains=query)
+            )
             quotaqs = request.event.quotas.filter(quotaf).select_related('subevent')
             more = False
         else:
             if page == 1:
-                itemqs = request.event.items.prefetch_related('variations').filter(name__icontains=i18ncomp(query))
+                itemqs = request.event.items.prefetch_related('variations').filter(
+                    Q(name__icontains=i18ncomp(query)) | Q(internal_name__icontains=query)
+                )
             else:
                 itemqs = request.event.items.none()
             quotaqs = request.event.quotas.filter(name__icontains=query).select_related('subevent')
@@ -215,11 +219,11 @@ def itemvarquota_select2(request, **kwargs):
     for i in itemqs:
         variations = list(i.variations.all())
         if variations:
-            choices.append((str(i.pk), _('{product} – Any variation').format(product=i.name), ''))
+            choices.append((str(i.pk), _('{product} – Any variation').format(product=i), ''))
             for v in variations:
-                choices.append(('%d-%d' % (i.pk, v.pk), '%s – %s' % (i.name, v.value), ''))
+                choices.append(('%d-%d' % (i.pk, v.pk), '%s – %s' % (i, v.value), ''))
         else:
-            choices.append((str(i.pk), i.name, ''))
+            choices.append((str(i.pk), str(i), ''))
     for q in quotaqs:
         if request.event.has_subevents:
             choices.append(('q-%d' % q.pk,

src/pretix/plugins/checkinlists/exporters.py

@@ -217,7 +217,7 @@ class PDFCheckinList(ReportlabExportMixin, BaseCheckinList):
                 '✘' if op.order.status != Order.STATUS_PAID else '✔',
                 op.order.code,
                 name,
-                str(op.item.name) + (" – " + str(op.variation.value) if op.variation else "") + "\n" +
+                str(op.item) + (" – " + str(op.variation.value) if op.variation else "") + "\n" +
                 money_filter(op.price, self.event.currency),
             ]
             acache = {}
@@ -310,7 +310,7 @@ class CSVCheckinList(BaseCheckinList):
             row = [
                 op.order.code,
                 op.attendee_name or (op.addon_to.attendee_name if op.addon_to else ''),
-                str(op.item.name) + (" – " + str(op.variation.value) if op.variation else ""),
+                str(op.item) + (" – " + str(op.variation.value) if op.variation else ""),
                 op.price,
                 date_format(last_checked_in.astimezone(self.event.timezone), 'SHORT_DATETIME_FORMAT')
                 if last_checked_in else ''

src/pretix/plugins/statistics/views.py

@@ -90,7 +90,7 @@ class IndexView(EventPermissionRequiredMixin, ChartContainingView, TemplateView)
                           .annotate(cnt=Count('id')).order_by())
             }
             item_names = {
-                i.id: str(i.name)
+                i.id: str(i)
                 for i in Item.objects.filter(event=self.request.event)
             }
             ctx['obp_data'] = json.dumps([

src/pretix/static/pretixcontrol/js/ui/main.js

@@ -25,7 +25,7 @@ var ajaxErrDialog = {
         "use strict";
         $("#ajaxerr").html(c);
         $("#ajaxerr .links").html("<a class='btn btn-default ajaxerr-close'>"
-                                  + gettext("Close message") + "</a>");
+            + gettext("Close message") + "</a>");
         $("body").addClass("ajaxerr");
     },
     hide: function () {
@@ -45,7 +45,7 @@ $(document).ajaxError(function (event, jqXHR, settings, thrownError) {
 });
 
 var form_handlers = function (el) {
-    el.find(".datetimepicker").each(function() {
+    el.find(".datetimepicker").each(function () {
         $(this).datetimepicker({
             format: $("body").attr("data-datetimeformat"),
             locale: $("body").attr("data-datetimelocale"),
@@ -68,7 +68,7 @@ var form_handlers = function (el) {
         }
     });
 
-    el.find(".datepickerfield").each(function() {
+    el.find(".datepickerfield").each(function () {
         var opts = {
             format: $("body").attr("data-dateformat"),
             locale: $("body").attr("data-datetimelocale"),
@@ -104,7 +104,7 @@ var form_handlers = function (el) {
         }
     });
 
-    el.find(".timepickerfield").each(function() {
+    el.find(".timepickerfield").each(function () {
         var opts = {
             format: $("body").attr("data-timeformat"),
             locale: $("body").attr("data-datetimelocale"),
@@ -127,7 +127,7 @@ var form_handlers = function (el) {
         $(this).datetimepicker(opts);
     });
 
-    el.find(".datetimepicker[data-date-after], .datepickerfield[data-date-after]").each(function() {
+    el.find(".datetimepicker[data-date-after], .datepickerfield[data-date-after]").each(function () {
         var later_field = $(this),
             earlier_field = $($(this).attr("data-date-after")),
             update = function () {
@@ -144,7 +144,7 @@ var form_handlers = function (el) {
         earlier_field.on("dp.change", update);
     });
 
-    el.find(".datetimepicker[data-date-default], .datepickerfield[data-date-default]").each(function() {
+    el.find(".datetimepicker[data-date-default], .datepickerfield[data-date-default]").each(function () {
         var fill_field = $(this),
             default_field = $($(this).attr("data-date-default")),
             show = function () {
@@ -461,7 +461,7 @@ $(function () {
         } else {
             $(".form-group:has(#voucher-bulk-codes-num)").addClass("has-error");
             $("#voucher-bulk-codes-num").focus();
-            setTimeout(function() {
+            setTimeout(function () {
                 $(".form-group:has(#voucher-bulk-codes-num)").removeClass("has-error");
             }, 3000);
         }
@@ -469,7 +469,7 @@ $(function () {
 
     form_handlers($("body"));
 
-    $(".qrcode-canvas").each(function() {
+    $(".qrcode-canvas").each(function () {
         $(this).qrcode(
             {
                 text: $.trim($($(this).attr("data-qrdata")).html())
@@ -477,7 +477,7 @@ $(function () {
         );
     });
 
-    $(".propagated-settings-box button[data-action=unlink]").click(function(ev) {
+    $(".propagated-settings-box button[data-action=unlink]").click(function (ev) {
         var $box = $(this).closest(".propagated-settings-box");
         $box.find(".propagated-settings-overlay").fadeOut();
         $box.find("input[name=_settings_ignore]").attr("name", "decouple");
@@ -486,6 +486,7 @@ $(function () {
         return true;
     });
 
+    // Tables with bulk selection, e.g. subevent list
     $("input[data-toggle-table]").each(function (ev) {
         var $toggle = $(this);
 
@@ -514,6 +515,28 @@ $(function () {
         });
     });
 
+    // Items and categories
+    $(".internal-name-wrapper").each(function () {
+        if ($(this).find("input").val() === "") {
+            var $fg = $(this).find(".form-group");
+            $fg.hide();
+            var $fgl = $("<div>").addClass("form-group").append(
+                $("<div>").addClass("col-md-9 col-md-offset-3").append(
+                    $("<div>").addClass("help-block").append(
+                        $("<a>").attr("href", "#").text(
+                            gettext("Use a different name internally")
+                        ).click(function () {
+                            $fg.slideDown();
+                            $fgl.slideUp();
+                            return false;
+                        })
+                    )
+                )
+            );
+            $(this).append($fgl);
+        }
+    });
+
     $("#ajaxerr").on("click", ".ajaxerr-close", ajaxErrDialog.hide);
     moment.locale($("body").attr("data-datetimelocale"));
 });