add tests in test_checkout.py

src/pretix/base/forms/questions.py

@@ -173,6 +173,7 @@ class BaseQuestionsForm(forms.Form):
                 initial = None
             tz = pytz.timezone(event.settings.timezone)
             help_text = rich_text(q.help_text)
+            default = q.default_value
             label = escape(q.question)  # django-bootstrap3 calls mark_safe
             required = q.required and not self.all_optional
             if q.type == Question.TYPE_BOOLEAN:
@@ -185,6 +186,8 @@ class BaseQuestionsForm(forms.Form):
 
                 if initial:
                     initialbool = (initial.answer == "True")
+                elif default:
+                    initialbool = (default == "True")
                 else:
                     initialbool = False
 
@@ -197,21 +200,21 @@ class BaseQuestionsForm(forms.Form):
                 field = forms.DecimalField(
                     label=label, required=required,
                     help_text=q.help_text,
-                    initial=initial.answer if initial else None,
+                    initial=initial.answer if initial else (default if default else None),
                     min_value=Decimal('0.00'),
                 )
             elif q.type == Question.TYPE_STRING:
                 field = forms.CharField(
                     label=label, required=required,
                     help_text=help_text,
-                    initial=initial.answer if initial else None,
+                    initial=initial.answer if initial else (default if default else None),
                 )
             elif q.type == Question.TYPE_TEXT:
                 field = forms.CharField(
                     label=label, required=required,
                     help_text=help_text,
                     widget=forms.Textarea,
-                    initial=initial.answer if initial else None,
+                    initial=initial.answer if initial else (default if default else None),
                 )
             elif q.type == Question.TYPE_CHOICE:
                 field = forms.ModelChoiceField(
@@ -243,21 +246,24 @@ class BaseQuestionsForm(forms.Form):
                 field = forms.DateField(
                     label=label, required=required,
                     help_text=help_text,
-                    initial=dateutil.parser.parse(initial.answer).date() if initial and initial.answer else None,
+                    initial=dateutil.parser.parse(initial.answer).date() if initial and initial.answer else (
+                        dateutil.parser.parse(default).date() if default else None),
                     widget=DatePickerWidget(),
                 )
             elif q.type == Question.TYPE_TIME:
                 field = forms.TimeField(
                     label=label, required=required,
                     help_text=help_text,
-                    initial=dateutil.parser.parse(initial.answer).time() if initial and initial.answer else None,
+                    initial=dateutil.parser.parse(initial.answer).time() if initial and initial.answer else (
+                        dateutil.parser.parse(default).time() if default else None),
                     widget=TimePickerWidget(time_format=get_format_without_seconds('TIME_INPUT_FORMATS')),
                 )
             elif q.type == Question.TYPE_DATETIME:
                 field = SplitDateTimeField(
                     label=label, required=required,
                     help_text=help_text,
-                    initial=dateutil.parser.parse(initial.answer).astimezone(tz) if initial and initial.answer else None,
+                    initial=dateutil.parser.parse(initial.answer).astimezone(tz) if initial and initial.answer else (
+                        dateutil.parser.parse(default).astimezone(tz) if default else None),
                     widget=SplitDateTimePickerWidget(time_format=get_format_without_seconds('TIME_INPUT_FORMATS')),
                 )
             field.question = q

src/pretix/base/migrations/0116_auto_20180531_1739.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.13 on 2018-05-31 15:39
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0115_auto_20190323_2238'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='question',
+            name='default_value',
+            field=models.TextField(blank=True, help_text='The question will be filled with this response by default', null=True, verbose_name='Default answer'),
+        ),
+    ]

src/pretix/base/models/items.py

@@ -963,6 +963,11 @@ class Question(LoggedModel):
         'Question', null=True, blank=True, on_delete=models.SET_NULL, related_name='dependent_questions'
     )
     dependency_value = models.TextField(null=True, blank=True)
+    default_value = models.TextField(
+        verbose_name=_('Default answer'),
+        help_text=_('The question will be filled with this response by default'),
+        null=True, blank=True,
+    )
 
     class Meta:
         verbose_name = _("Question")
@@ -980,6 +985,10 @@ class Question(LoggedModel):
     def clean_identifier(self, code):
         Question._clean_identifier(self.event, code, self)
 
+    def clean(self):
+        if self.default_value is not None:
+            self.clean_answer(self.default_value, check_required=False)
+
     @staticmethod
     def _clean_identifier(event, code, instance=None):
         qs = Question.objects.filter(event=event, identifier__iexact=code)
@@ -1007,8 +1016,8 @@ class Question(LoggedModel):
     def __lt__(self, other) -> bool:
         return self.sortkey < other.sortkey
 
-    def clean_answer(self, answer):
+    def clean_answer(self, answer, check_required=True):
-        if self.required:
+        if self.required and check_required:
             if not answer or (self.type == Question.TYPE_BOOLEAN and answer not in ("true", "True", True)):
                 raise ValidationError(_('An answer to this question is required to proceed.'))
         if not answer:

src/pretix/control/forms/item.py

@@ -1,8 +1,14 @@
+import datetime
+
+import dateutil
+import pytz
 from django import forms
 from django.core.exceptions import ValidationError
 from django.db.models import Max
 from django.forms.formsets import DELETION_FIELD_NAME
+from django.forms.utils import from_current_timezone, to_current_timezone
 from django.urls import reverse
+from django.utils import formats
 from django.utils.translation import (
     pgettext_lazy, ugettext as __, ugettext_lazy as _,
 )
@@ -33,6 +39,63 @@ class CategoryForm(I18nModelForm):
         ]
 
 
+class AdjustableTypeField(forms.Textarea):
+    def __init__(self, *args, type=None, **kwargs):
+        super().__init__(*args, **kwargs)
+
+    def format_value(self, value):
+        if getattr(self, 'type') == 'W' and value:
+            return str(formats.localize_input(to_current_timezone(dateutil.parser.parse(value))))
+        elif getattr(self, 'type') == 'D' and value:
+            return str(formats.localize_input(dateutil.parser.parse(value).date()))
+        elif getattr(self, 'type') == 'T' and value:
+            return str(formats.localize_input(dateutil.parser.parse(value).time()))
+        return super().format_value(value)
+
+    def value_from_datadict(self, data, files, name):
+        if 'type' in data and data['type'] == 'W' and 'default_value_date' in data and 'default_value_time' in data:
+            d_date = d_time = None
+
+            for format in formats.get_format('DATE_INPUT_FORMATS'):
+                try:
+                    d_date = datetime.datetime.strptime(data['default_value_date'], format).date()
+                    break
+                except (ValueError, TypeError):
+                    continue
+
+            for format in formats.get_format('TIME_INPUT_FORMATS'):
+                try:
+                    d_time = datetime.datetime.strptime(data['default_value_time'], format).time()
+                    break
+                except (ValueError, TypeError):
+                    continue
+
+            if d_date and d_time:
+                return from_current_timezone(datetime.datetime.combine(d_date, d_time)).astimezone(pytz.UTC).isoformat()
+            else:
+                return None
+        else:
+            val = super().value_from_datadict(data, files, name)
+            if 'type' in data and data['type'] == 'D' and val:
+                for format in formats.get_format('DATE_INPUT_FORMATS'):
+                    try:
+                        d_date = datetime.datetime.strptime(val, format).date()
+                        val = d_date.isoformat()
+                        break
+                    except (ValueError, TypeError):
+                        continue
+            elif 'type' in data and data['type'] == 'T' and val:
+                for format in formats.get_format('TIME_INPUT_FORMATS'):
+                    try:
+                        d_date = datetime.datetime.strptime(val, format).time()
+                        val = d_date.isoformat()
+                        break
+                    except (ValueError, TypeError):
+                        continue
+
+            return val
+
+
 class QuestionForm(I18nModelForm):
     question = I18nFormField(
         label=_("Question"),
@@ -51,6 +114,8 @@ class QuestionForm(I18nModelForm):
                 pk=self.instance.pk
             )
         self.fields['identifier'].required = False
+        if self.instance:
+            self.fields['default_value'].widget.type = self.instance.type
         self.fields['help_text'].widget.attrs['rows'] = 3
 
     def clean_dependency_question(self):
@@ -80,6 +145,7 @@ class QuestionForm(I18nModelForm):
             'help_text',
             'type',
             'required',
+            'default_value',
             'ask_during_checkin',
             'identifier',
             'items',
@@ -90,7 +156,8 @@ class QuestionForm(I18nModelForm):
             'items': forms.CheckboxSelectMultiple(
                 attrs={'class': 'scrolling-multiple-choice'}
             ),
-            'dependency_value': forms.Select,
+            'default_value': AdjustableTypeField(),
+            'dependency_value': forms.Select
         }
 
 

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

@@ -107,6 +107,7 @@
         <fieldset>
             <legend>{% trans "Advanced settings" %}</legend>
             {% bootstrap_field form.help_text layout="control" %}
+            {% bootstrap_field form.default_value layout="control" %}
             {% bootstrap_field form.identifier layout="control" %}
             {% bootstrap_field form.ask_during_checkin layout="control" %}
 

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

@@ -93,6 +93,67 @@ $(function () {
 
         show = $("#id_type").val() == "B" && $("#id_required").prop("checked");
         $(".alert-required-boolean").toggle(show);
+
+        update_default_value_field()
+    }
+
+    function update_default_value_field() {
+        let input = $('#id_default_value');
+        let parent = input.parent();
+
+        let field = input.prop("tagName") == 'DIV' ? input.children().first() : input;
+        let common_attrs = ' name="default_value" placeholder="' + field.attr('placeholder') + '" title="' + field.attr('title') + '" id="id_default_value"';
+        let value = field.val();
+        switch ($("#id_type").val()) {
+            case 'N':
+                input.replaceWith('<input type="number" class="form-control" value="' + value + '" ' + common_attrs + '>');
+                $('.form-group:has(#id_default_value)').show();
+                break;
+            case 'S':
+                input.replaceWith('<input type="text" maxlength="190" class="form-control" value="' + value + '" ' + common_attrs + '>');
+                $('.form-group:has(#id_default_value)').show();
+                break;
+            case 'T':
+                input.replaceWith('<textarea cols="40" rows="10" class="form-control" ' + common_attrs + '>' + value + '</textarea>');
+                $('.form-group:has(#id_default_value)').show();
+                break;
+            case 'B':
+                let checked = (value === 'True' || value === 'on' ? 'checked' : '');
+                input.replaceWith('<input type="checkbox" ' + common_attrs + ' ' + checked + '>');
+                $('.form-group:has(#id_default_value)').show();
+                break;
+            case 'D':
+                let dateField = input.replaceWith('<input type="text" class="form-control datepickerfield" value="' + value + '" ' + common_attrs + '>');
+                form_handlers(parent);
+                $('.form-group:has(#id_default_value)').show();
+                break;
+            case 'H':
+                let timeField = input.replaceWith('<input type="text" class="form-control timepickerfield" value="' + value + '" ' + common_attrs + '>');
+                form_handlers(parent);
+                $('.form-group:has(#id_default_value)').show();
+                break;
+            case 'W':
+                let split = value.split(' ');
+                let date, time;
+                if (split.length > 1) {
+                    date = split[0];
+                    time = split[1];
+                } else {
+                    date = null;
+                    time = null;
+                }
+                let dtField = input.replaceWith('<div class="splitdatetimerow" id="id_default_value">\n' +
+                    '<input type="text" class="form-control splitdatetimepart datepickerfield" value="' + date + '"  name="default_value_date" placeholder="' + field.attr('placeholder') + '" title="' + field.attr('title') + '">\n' +
+                    '<input type="text" class="form-control splitdatetimepart timepickerfield" value="' + time + '"  name="default_value_time" placeholder="' + field.attr('placeholder') + '" title="' + field.attr('title') + '">\n' +
+                    '</div>\n');
+                form_handlers(parent);
+                $('.form-group:has(#id_default_value)').show();
+                break;
+            default:
+                // file, choice, and multiple choice are not implemented
+                $('.form-group:has(#id_default_value)').hide();
+                input.val('')
+        }
     }
 
     var $val = $("#id_dependency_value");

src/tests/control/test_items.py

@@ -251,6 +251,41 @@ class QuestionsTest(ItemFormTest):
                             form_data)
         assert not doc.select(".alert-success")
 
+    def test_set_default_value(self):
+        q = Question.objects.create(event=self.event1, question="What city are you from?", type=Question.TYPE_TEXT,
+                                    required=True)
+        doc = self.get_doc('/control/event/%s/%s/questions/%s/change' % (self.orga1.slug, self.event1.slug, q.id))
+        form_data = extract_form_fields(doc.select('.container-fluid form')[0])
+        form_data['default_value'] = 'Heidelberg'
+        doc = self.post_doc('/control/event/%s/%s/questions/%s/change' % (self.orga1.slug, self.event1.slug, q.id),
+                            form_data)
+        assert doc.select(".alert-success")
+        q.refresh_from_db()
+        assert q.default_value == 'Heidelberg'
+
+    def test_set_default_value_datetime(self):
+        q = Question.objects.create(event=self.event1, question="What city are you from?", type=Question.TYPE_DATETIME,
+                                    required=True)
+        doc = self.get_doc('/control/event/%s/%s/questions/%s/change' % (self.orga1.slug, self.event1.slug, q.id))
+        form_data = extract_form_fields(doc.select('.container-fluid form')[0])
+        form_data['default_value_date'] = '2019-01-01'
+        form_data['default_value_time'] = '10:00'
+        doc = self.post_doc('/control/event/%s/%s/questions/%s/change' % (self.orga1.slug, self.event1.slug, q.id),
+                            form_data)
+        assert doc.select(".alert-success")
+        q.refresh_from_db()
+        assert q.default_value == '2019-01-01T10:00:00+00:00'
+
+    def test_set_default_value_invalid(self):
+        q = Question.objects.create(event=self.event1, question="What city are you from?", type=Question.TYPE_DATE,
+                                    required=True)
+        doc = self.get_doc('/control/event/%s/%s/questions/%s/change' % (self.orga1.slug, self.event1.slug, q.id))
+        form_data = extract_form_fields(doc.select('.container-fluid form')[0])
+        form_data['default_value'] = 'foobar'
+        doc = self.post_doc('/control/event/%s/%s/questions/%s/change' % (self.orga1.slug, self.event1.slug, q.id),
+                            form_data)
+        assert not doc.select(".alert-success")
+
 
 class QuotaTest(ItemFormTest):
 

src/tests/presale/test_checkout.py

@@ -1985,6 +1985,59 @@ class QuestionsTestCase(BaseCheckoutTestCase, TestCase):
             self.q3: 'False',
         }, should_fail=True)
 
+    def test_datetime_defaultvalues(self):
+        """ Test timezone and format handling for default values """
+        q1 = Question.objects.create(
+            event=self.event, question='When did you wake up today?', type=Question.TYPE_TIME,
+            required=True, default_value='10:00'
+        )
+        q2 = Question.objects.create(
+            event=self.event, question='When was your last haircut?', type=Question.TYPE_DATE,
+            required=True, default_value='2019-01-01'
+        )
+        q3 = Question.objects.create(
+            event=self.event, question='When are you going to arrive?', type=Question.TYPE_DATETIME,
+            required=True, default_value='2019-01-01T10:00:00+00:00'
+        )
+
+        self.ticket.questions.add(q1)
+        self.ticket.questions.add(q2)
+        self.ticket.questions.add(q3)
+        cr = CartPosition.objects.create(
+            event=self.event, cart_id=self.session_key, item=self.ticket,
+            price=23, expires=now() + timedelta(minutes=10)
+        )
+        response = self.client.get('/%s/%s/checkout/questions/' % (self.orga.slug, self.event.slug), follow=True)
+        doc = BeautifulSoup(response.rendered_content, "lxml")
+
+        assert doc.select('input[name="%s-question_%s"]' % (cr.id, q1.id))[0]['value'] == '10:00'
+        assert doc.select('input[name="%s-question_%s"]' % (cr.id, q2.id))[0]['value'] == '2019-01-01'
+        assert doc.select('input[name="%s-question_%s_0"]' % (cr.id, q3.id))[0]['value'] == '2019-01-01'
+        assert doc.select('input[name="%s-question_%s_1"]' % (cr.id, q3.id))[0]['value'] == '10:00'
+
+        # set to different timezone, this should affect the datetime question's default value displayed
+        self.event.settings.set('timezone', 'US/Central')
+
+        response = self.client.get('/%s/%s/checkout/questions/' % (self.orga.slug, self.event.slug), follow=True)
+        doc = BeautifulSoup(response.rendered_content, "lxml")
+
+        assert doc.select('input[name="%s-question_%s"]' % (cr.id, q1.id))[0]['value'] == '10:00'
+        assert doc.select('input[name="%s-question_%s"]' % (cr.id, q2.id))[0]['value'] == '2019-01-01'
+        assert doc.select('input[name="%s-question_%s_0"]' % (cr.id, q3.id))[0]['value'] == '2019-01-01'
+        assert doc.select('input[name="%s-question_%s_1"]' % (cr.id, q3.id))[0]['value'] == '04:00'
+
+        # set locale, this should affect the date format
+        self.event.settings.set('locales', ['de'])
+        self.event.save()
+
+        response = self.client.get('/%s/%s/checkout/questions/' % (self.orga.slug, self.event.slug), follow=True)
+        doc = BeautifulSoup(response.rendered_content, "lxml")
+
+        assert doc.select('input[name="%s-question_%s"]' % (cr.id, q1.id))[0]['value'] == '10:00'
+        assert doc.select('input[name="%s-question_%s"]' % (cr.id, q2.id))[0]['value'] == '01.01.2019'
+        assert doc.select('input[name="%s-question_%s_0"]' % (cr.id, q3.id))[0]['value'] == '01.01.2019'
+        assert doc.select('input[name="%s-question_%s_1"]' % (cr.id, q3.id))[0]['value'] == '04:00'
+
 
 class CheckoutBundleTest(BaseCheckoutTestCase, TestCase):
     def setUp(self):