aleksis/apps/chronos/frontend/index.js

@@ -32,5 +32,21 @@ export default {
         fullWidth: true,
       },
     },
+    {
+      path: "substitutions/print/",
+      component: () => import("aleksis.core/components/LegacyBaseTemplate.vue"),
+      name: "chronos.substitutions",
+      props: {
+        byTheGreatnessOfTheAlmightyAleksolotlISwearIAmWorthyOfUsingTheLegacyBaseTemplate: true,
+      },
+    },
+    {
+      path: "substitutions/print/:date/",
+      component: () => import("aleksis.core/components/LegacyBaseTemplate.vue"),
+      name: "chronos.substitutionsByDate",
+      props: {
+        byTheGreatnessOfTheAlmightyAleksolotlISwearIAmWorthyOfUsingTheLegacyBaseTemplate: true,
+      },
+    },
   ],
 };

aleksis/apps/chronos/managers.py

@@ -946,3 +946,11 @@ class LessonEventQuerySet(RecurrencePolymorphicQuerySet):
     def not_amending(self) -> "LessonEventQuerySet":
         """Get all lesson events that are not amending other events."""
         return self.filter(amends__isnull=True)
+
+    def amending(self) -> "LessonEventQuerySet":
+        """Get all lesson events that are amending other events."""
+        return self.filter(amends__isnull=False)
+
+
+class SupervisionEventQuerySet(LessonEventQuerySet):
+    pass

aleksis/apps/chronos/models.py

@@ -42,6 +42,7 @@ from aleksis.apps.chronos.managers import (
     LessonPeriodQuerySet,
     LessonSubstitutionManager,
     LessonSubstitutionQuerySet,
+    SupervisionEventQuerySet,
     SupervisionManager,
     SupervisionQuerySet,
     SupervisionSubstitutionManager,
@@ -1209,20 +1210,26 @@ class AutomaticPlan(LiveDocument):
     @property
     def current_start_day(self) -> date:
         """Get first day which should be shown in the PDF."""
-        return TimePeriod.get_next_relevant_day(timezone.now().date(), datetime.now().time())
+        from aleksis.apps.chronos.util.chronos_helpers import get_next_relevant_day
+
+        return get_next_relevant_day(timezone.now())
 
     @property
     def current_end_day(self) -> date:
         """Get last day which should be shown in the PDF."""
-        return self.current_start_day + timedelta(days=self.number_of_days - 1)
+        from aleksis.apps.chronos.util.chronos_helpers import get_next_relevant_day
+
+        day = self.current_start_day
+        for _i in range(self.number_of_days - 1):
+            day = get_next_relevant_day(day)
+        return day
 
     def get_context_data(self) -> dict[str, Any]:
         """Get context data for generating the substitutions PDF."""
         from aleksis.apps.chronos.util.chronos_helpers import get_substitutions_context_data  # noqa
 
         context = get_substitutions_context_data(
-            request=None,
-            is_print=True,
+            wanted_day=date.today(),
             number_of_days=self.number_of_days,
             show_header_box=self.show_header_box,
         )
@@ -1248,11 +1255,16 @@ class AutomaticPlan(LiveDocument):
                     continue
 
                 # Check if the changed object is relevant for the time period of the PDF file
-                if isinstance(version.object, Event):
+                if not version.object.amends:
+                    return
+
+                if version.object.datetime_start:
+                    date_start = version.object.datetime_start.date()
+                    date_end = version.object.datetime_end.date()
+                else:
                     date_start = version.object.date_start
                     date_end = version.object.date_end
-                else:
-                    date_start = date_end = version.object.date
+
                 if date_start <= self.current_end_day and date_end >= self.current_start_day:
                     update = True
                     break
@@ -1537,9 +1549,15 @@ class LessonEvent(CalendarEvent):
 
     @classmethod
     def get_objects(
-        cls, request: HttpRequest | None = None, params: dict[str, any] | None = None, **kwargs
+        cls,
+        request: HttpRequest | None = None,
+        params: dict[str, any] | None = None,
+        no_effect: bool = False,
+        **kwargs,
     ) -> Iterable:
         """Return all objects that should be included in the calendar."""
+        if no_effect:
+            return super().get_objects(request, params, **kwargs)
         objs = (
             super()
             .get_objects(request, params, **kwargs)
@@ -1556,6 +1574,7 @@ class LessonEvent(CalendarEvent):
             type_ = params.get("type", None)
             not_amended = params.get("not_amended", False)
             not_amending = params.get("not_amending", False)
+            amending = params.get("amending", False)
             own = params.get("own", False)
 
             if not_amended:
@@ -1564,6 +1583,9 @@ class LessonEvent(CalendarEvent):
             if not_amending:
                 objs = objs.not_amending()
 
+            if amending:
+                objs = objs.amending()
+
             if request and "own" in params:
                 if own:
                     objs = objs.for_person(request.user.person)
@@ -1599,7 +1621,7 @@ class SupervisionEvent(LessonEvent):
     name = "supervision"
     verbose_name = _("Supervisions")
 
-    objects = RecurrencePolymorphicManager.from_queryset(LessonEventQuerySet)()
+    objects = RecurrencePolymorphicManager.from_queryset(SupervisionEventQuerySet)()
 
     @classmethod
     def value_title(cls, reference_object: LessonEvent, request: HttpRequest | None = None) -> str:
@@ -1624,10 +1646,22 @@ class SupervisionEvent(LessonEvent):
         cls, request: HttpRequest | None = None, params: dict[str, any] | None = None, **kwargs
     ) -> Iterable:
         """Return all objects that should be included in the calendar."""
-        objs = super().get_objects(request, params, **kwargs).instance_of(cls)
+        objs = super().get_objects(request, params, no_effect=True, **kwargs)
         if params:
             obj_id = int(params.get("id", 0))
             type_ = params.get("type", None)
+            not_amended = params.get("not_amended", False)
+            not_amending = params.get("not_amending", False)
+            amending = params.get("amending", False)
+
+            if not_amended:
+                objs = objs.not_amended()
+
+            if not_amending:
+                objs = objs.not_amending()
+
+            if amending:
+                objs = objs.amending()
 
             if type_ and obj_id:
                 if type_ == "TEACHER":

aleksis/apps/chronos/preferences.py

 from datetime import time
 
+from django.core.exceptions import ValidationError
 from django.utils.translation import gettext_lazy as _
 
+from calendarweek.django import i18n_day_name_choices_lazy
 from colorfield.widgets import ColorWidget
 from dynamic_preferences.preferences import Section
 from dynamic_preferences.types import (
     BooleanPreference,
     IntegerPreference,
     ModelMultipleChoicePreference,
+    MultipleChoicePreference,
     StringPreference,
     TimePreference,
 )
@@ -52,6 +55,34 @@ class ShortenGroupsLimit(IntegerPreference):
     )
 
 
+@site_preferences_registry.register
+class SubstitutionsRelevantDays(MultipleChoicePreference):
+    """Relevant days which have substitution plans."""
+
+    section = chronos
+    name = "substitutions_relevant_days"
+    default = [0, 1, 2, 3, 4]
+    verbose_name = _("Relevant days for substitution plans")
+    required = True
+    choices = i18n_day_name_choices_lazy()
+
+    def validate(self, value):
+        for v in value:
+            if int(v) not in self.get_choice_values():
+                raise ValidationError(f"{v} is not a valid choice")
+
+
+@site_preferences_registry.register
+class SubstitutionsDayChangeTime(TimePreference):
+    """Time when substitution plans should switch to the next day."""
+
+    section = chronos
+    name = "substitutions_day_change_time"
+    default = time(18, 0)
+    verbose_name = _("Time when substitution plans switch to the next day")
+    required = True
+
+
 @site_preferences_registry.register
 class SubstitutionsPrintNumberOfDays(IntegerPreference):
     section = chronos

aleksis/apps/chronos/rules.py

 from rules import add_perm
 
 from aleksis.core.util.predicates import (
-    has_any_object,
     has_global_perm,
     has_object_perm,
     has_person,
 )
 
-from .models import LessonSubstitution
 from .util.predicates import has_any_timetable_object, has_room_timetable_perm, has_timetable_perm
 
 # View timetable overview
@@ -42,10 +40,7 @@ delete_substitution_predicate = has_person & (
 add_perm("chronos.delete_substitution_rule", delete_substitution_predicate)
 
 # View substitutions
-view_substitutions_predicate = has_person & (
-    has_global_perm("chronos.view_lessonsubstitution")
-    | has_any_object("chronos.view_lessonsubstitution", LessonSubstitution)
-)
+view_substitutions_predicate = has_person & (has_global_perm("chronos.view_lessonsubstitution"))
 add_perm("chronos.view_substitutions_rule", view_substitutions_predicate)
 
 # View all supervisions per day

aleksis/apps/chronos/schema/__init__.py

@@ -2,13 +2,13 @@ from datetime import timezone
 
 import graphene
 from graphene_django import DjangoObjectType
-from graphene_django_cud.mutations import (
-    DjangoBatchCreateMutation,
-    DjangoBatchDeleteMutation,
-    DjangoBatchPatchMutation,
-)
 
 from aleksis.core.models import Group, Person, Room
+from aleksis.core.schema.base import (
+    BaseBatchCreateMutation,
+    BaseBatchDeleteMutation,
+    BaseBatchPatchMutation,
+)
 
 from ..models import LessonEvent
 from ..util.chronos_helpers import get_groups, get_rooms, get_teachers
@@ -80,7 +80,7 @@ class DatetimeTimezoneMixin:
         return value
 
 
-class AmendLessonBatchCreateMutation(DatetimeTimezoneMixin, DjangoBatchCreateMutation):
+class AmendLessonBatchCreateMutation(DatetimeTimezoneMixin, BaseBatchCreateMutation):
     class Meta:
         model = LessonEvent
         permissions = ("chronos.edit_substitution_rule",)
@@ -98,12 +98,13 @@ class AmendLessonBatchCreateMutation(DatetimeTimezoneMixin, DjangoBatchCreateMut
 
     @classmethod
     def before_save(cls, root, info, input, created_objects):  # noqa: A002
+        super().before_save(root, info, input, created_objects)
         for obj in created_objects:
             obj.timezone = obj.amends.timezone
         return created_objects
 
 
-class AmendLessonBatchPatchMutation(DatetimeTimezoneMixin, DjangoBatchPatchMutation):
+class AmendLessonBatchPatchMutation(DatetimeTimezoneMixin, BaseBatchPatchMutation):
     class Meta:
         model = LessonEvent
         permissions = ("chronos.edit_substitution_rule",)
@@ -111,12 +112,13 @@ class AmendLessonBatchPatchMutation(DatetimeTimezoneMixin, DjangoBatchPatchMutat
 
     @classmethod
     def before_save(cls, root, info, input, updated_objects):  # noqa: A002
+        super().before_save(root, info, input, updated_objects)
         for obj in updated_objects:
             obj.timezone = obj.amends.timezone
         return updated_objects
 
 
-class AmendLessonBatchDeleteMutation(DjangoBatchDeleteMutation):
+class AmendLessonBatchDeleteMutation(BaseBatchDeleteMutation):
     class Meta:
         model = LessonEvent
         permissions = ("chronos.delete_substitution_rule",)

aleksis/apps/chronos/templates/chronos/partials/datepicker.html

-{% load static %}
-
-{% if not display_date_only %}
-  <script type="text/javascript" src="{% static "js/helper.js" %}"></script>
-  {{ datepicker|json_script:"datepicker_data" }}
-  <script type="text/javascript" src="{% static "js/chronos/date_select.js" %}"></script>
-{% endif %}
-
-<div class="col s2 no-padding">
-  <a class="waves-effect waves-secondary btn-flat btn-flat-medium left" href="{{ url_prev }}">
-    <i class="material-icons iconify center" data-icon="mdi:chevron-left"></i>
-  </a>
-</div>
-
-{% if display_date_only %}
-  <div class="col s8">
-    <span class="card-title center-block" id="date">
-        {{ day|date:"l" }}, {{ day }}
-    </span>
-  </div>
-{% else %}
-  <div class="col s8 no-padding">
-    <input type="text" class="datepicker center-align" id="date">
-  </div>
-{% endif %}
-<div class="col s2 no-padding">
-  <a class="waves-effect waves-secondary btn-flat btn-flat-medium right" href="{{ url_next }}">
-    <i class="material-icons iconify center" data-icon="mdi:chevron-right"></i>
-  </a>
-</div>

aleksis/apps/chronos/templates/chronos/partials/elements.html

-<div class="card lesson-card {% if active_day and week_day == active_day %} z-depth-5 active {% endif %}">
-  <div class="card-content">
-    {% for element in elements %}
-      {% if element.label_ == "lesson_period" %}
-        {% include "chronos/partials/lesson.html" with lesson_period=element %}
-      {% elif element.label_ == "extra_lesson" and smart %}
-        {% include "chronos/partials/extra_lesson.html" with extra_lesson=element %}
-      {% elif element.label_ == "event" and smart %}
-        {% include "chronos/partials/event.html" with event=element %}
-      {% endif %}
-    {% endfor %}
-  </div>
-</div>

aleksis/apps/chronos/templates/chronos/partials/event.html

-<div class="lesson-with-event">
-  <p>
-    {# Teacher or room > Display groups #}
-    {% if type.value == "teacher" or type.value == "room" %}
-      {% include "chronos/partials/groups.html" with groups=event.groups.all %}
-    {% endif %}
-
-    {# Class or room > Display teachers #}
-    {% if type.value == "room" or type.value == "group" %}
-      {% include "chronos/partials/teachers.html" with teachers=event.teachers.all %}
-    {% endif %}
-
-    {# Teacher or class > Display rooms #}
-    {% if type.value == "teacher" or type.value == "group" %}
-      {% for room in event.rooms.all %}
-        {% include "chronos/partials/room.html" with room=room %}{% if not forloop.last %},{% endif %}
-      {% endfor %}
-    {% endif %}
-
-    {% if type.value == "teacher" and not event.groups.all and not event.rooms.all and event.title %}
-      <em>{{ event.title }}</em>
-    {% elif type.value == "group" and not event.teachers.all and not event.groups.all and event.title %}
-      <em>{{ event.title }}</em>
-    {% elif type.value == "room" and not event.teachers.all and not event.groups.all and event.title %}
-      <em>{{ event.title }}</em>
-    {% elif event.title %}
-      <br/>
-      <small>
-        <em>{{ event.title }}</em>
-      </small>
-    {% endif %}
-  </p>
-</div>

aleksis/apps/chronos/templates/chronos/partials/extra_lesson.html

-<div class="lesson-with-sub"
-     style="{% include "chronos/partials/subject_colour.html" with subject=extra_lesson.subject %}">
-  <p>
-    {# Teacher or room > Display groups #}
-    {% if type.value == "teacher" or type.value == "room" %}
-      {% include "chronos/partials/groups.html" with groups=extra_lesson.groups.all %}
-    {% endif %}
-
-    {# Class or room > Display teachers #}
-    {% if type.value == "room" or type.value == "group" %}
-      {% include "chronos/partials/teachers.html" with teachers=extra_lesson.teachers.all %}
-    {% endif %}
-
-    {% include "chronos/partials/subject.html" with subject=extra_lesson.subject %}
-
-    {# Teacher or class > Display rooms #}
-    {% if type.value == "teacher" or type.value == "group" %}
-      {% include "chronos/partials/room.html" with room=extra_lesson.room %}
-    {% endif %}
-
-    {% if extra_lesson.comment %}
-      <br/>
-      <small>
-        <em>{{ extra_lesson.comment }}</em>
-      </small>
-    {% endif %}
-  </p>
-</div>

aleksis/apps/chronos/templates/chronos/partials/group.html

-<a href="{% url "timetable" "group" item.pk %}">
-  {{ item.short_name }}{% if not forloop.last %},{% endif %}
-</a>
+{{ item.short_name }}{% if not forloop.last %},{% endif %}

aleksis/apps/chronos/templates/chronos/partials/groups.html

 {% if groups.count == 1 and groups.0.parent_groups.all and request.site.preferences.chronos__use_parent_groups %}
-  {% include "chronos/partials/groups_part.html" with groups=groups.0.parent_groups.all no_collapsible=no_collapsible %}
+  {% include "chronos/partials/groups_part.html" with groups=groups.0.parent_groups.all %}
 {% else %}
   {% include "chronos/partials/groups_part.html" with groups=groups no_collapsible=no_collapsible %}
 {% endif %}

aleksis/apps/chronos/templates/chronos/partials/groups_part.html

-{% if groups.count > request.site.preferences.chronos__shorten_groups_limit and request.user.person.preferences.chronos__shorten_groups and not no_collapsible %}
-  {% include "components/text_collapsible.html" with template="chronos/partials/group.html" qs=groups %}
-{% else %}
-  {% for group in groups %}
-    {% include "chronos/partials/group.html" with item=group %}
-  {% endfor %}
-{% endif %}
+{% for group in groups %}
+  {% include "chronos/partials/group.html" with item=group %}
+{% endfor %}

aleksis/apps/chronos/templates/chronos/partials/headerbox.html

 {% load i18n %}
 
 {% if affected_teachers or affected_groups or absent_teachers or absent_groups %}
-  <div class="{% if not print %}card{% endif %}">
-    <div class="{% if not print %}card-content{% endif %}">
+  <div>
+    <div>
       {% if absent_teachers %}
         <div class="row no-margin">
-          <div class="col {% if not print %}s12 m3{% else %}s3{% endif %}">
+          <div class="col">
             <strong class="truncate">
               {% trans "Absent teachers" %}
             </strong>
           </div>
-          <div class="col {% if not print %}s12 m9{% else %}s9{% endif %} black-text-a">
+          <div class="col">
             {% include "chronos/partials/teachers.html" with teachers=absent_teachers %}
           </div>
         </div>
       {% endif %}
       {% if absent_groups %}
         <div class="row no-margin">
-          <div class="col {% if not print %}s12 m3{% else %}s3{% endif %}">
+          <div class="col">
             <strong class="truncate">
               {% trans "Absent groups" %}
             </strong>
           </div>
-          <div class="col {% if not print %}s12 m9{% else %}s9{% endif %} black-text-a">
+          <div class="col">
             {% include "chronos/partials/groups.html" with groups=absent_groups no_collapsible=True %}
           </div>
         </div>
       {% endif %}
       {% if affected_teachers %}
         <div class="row no-margin">
-          <div class="col {% if not print %}s12 m3{% else %}s3{% endif %}">
+          <div class="col">
             <strong class="truncate">
               {% trans "Affected teachers" %}
             </strong>
           </div>
-          <div class="col {% if not print %}s12 m9{% else %}s9{% endif %} black-text-a">
+          <div class="col">
             {% include "chronos/partials/teachers.html" with teachers=affected_teachers %}
           </div>
         </div>
       {% endif %}
       {% if affected_groups %}
         <div class="row no-margin">
-          <div class="col {% if not print %}s12 m3{% else %}s3{% endif %}">
+          <div class="col">
             <strong class="truncate">
               {% trans "Affected groups" %}
             </strong>
           </div>
-          <div class="col {% if not print %}s12 m9{% else %}s9{% endif %} black-text-a">
-            {% include "chronos/partials/groups.html" with groups=affected_groups no_collapsible=True %}
+          <div class="col">
+            {% include "chronos/partials/groups.html" with groups=affected_groups %}
           </div>
         </div>
       {% endif %}

aleksis/apps/chronos/templates/chronos/partials/holiday.html

-<span class="badge new blue center-align holiday-badge">{{ holiday.title }}</span>

aleksis/apps/chronos/templates/chronos/partials/lesson.html

-{% load i18n %}
-
-<div style="
-        {% with sub=lesson_period.get_substitution %}
-        {# Display background color only if lesson is not cancelled and it is not the old room #}
-        {% if not smart %}
-          {% include "chronos/partials/subject_colour.html" with subject=lesson_period.lesson.subject %}
-        {% elif not sub.cancelled and not lesson_period.get_substitution.cancelled_for_teachers and not lesson_period.replaced_by_event %}
-          {% if not type.value == "room" or lesson_period.room == lesson_period.get_room or lesson_period.get_room == el %}
-            {% if sub and sub.subject %}
-              {% include "chronos/partials/subject_colour.html" with subject=sub.subject %}
-            {% else %}
-              {% include "chronos/partials/subject_colour.html" with subject=lesson_period.lesson.subject %}
-            {% endif %}
-          {% endif %}
-        {% endif %}
-        {% endwith %}
-        "
-        {# Add CSS class for sub when it's a sub #}
-     class="{% if smart %}{% if lesson_period.get_substitution or lesson_period.replaced_by_event %}lesson-with-sub{% endif %}{% endif %}"
->
-  <p>
-    {% if lesson_period.replaced_by_event and smart %}
-      {% include "chronos/partials/groups.html" with groups=lesson_period.lesson.groups.all %}
-      {% include "chronos/partials/subject.html" with subject=lesson_period.lesson.subject %}
-      <br/>
-      <span class="badge new green">{% trans "Cancelled due to an event" %}</span>
-    {% elif lesson_period.get_substitution and smart %}
-      {% with sub=lesson_period.get_substitution %}
-        {# SUBSTITUTION #}
-        {% if type.value == "room" and lesson_period.room != lesson_period.get_room and lesson_period.get_room != el %}
-          {# When it's the old room, let it empty #}
-
-        {% elif sub.cancelled or sub.cancelled_for_teachers %}
-          {# When a badge (cancellation, etc.) exists, then display it with the teacher#}
-
-          {# Class or room > Display teacher #}
-          {% if type.value == "group" or type.value == "room" and lesson_period.lesson.teachers.all %}
-            {% include "chronos/partials/teachers.html" with teachers=lesson_period.lesson.teachers.all %}<br/>
-          {% endif %}
-
-          {# Badge #}
-          {% include "chronos/partials/subs/badge.html" with sub=sub %}
-
-        {% else %}
-          {# Display sub #}
-
-          {# Teacher or room > display classes #}
-          {% if type.value == "teacher" or type.value == "room" %}
-            {% include "chronos/partials/groups.html" with groups=lesson_period.lesson.groups.all %}
-          {% endif %}
-
-          {# Display teacher with tooltip #}
-          {% include "chronos/partials/subs/teachers.html" with type="substitution" el=sub %}
-
-          {# Display subject #}
-          {% include "chronos/partials/subs/subject.html" with type="substitution" el=sub %}
-
-          {# Teacher or class > display room #}
-          {% if type.value == "teacher" or type.value == "group" %}
-            {% include "chronos/partials/subs/room.html" with type="substitution" el=sub %}
-          {% endif %}
-        {% endif %}
-
-
-        {# Display the comment (e. g. work orders) #}
-        {% if sub.comment %}
-          <br>
-          <small>
-            <em>{{ sub.comment }}</em>
-          </small>
-        {% endif %}
-      {% endwith %}
-
-
-    {% else %}
-      {# Normal plan #}
-
-      {# Teacher or room > Display classes #}
-      {% if type.value == "teacher" or type.value == "room" %}
-        {#                            {{ element_container.element.classes }}#}
-        {% if lesson_period.lesson.groups %}
-          {% include "chronos/partials/groups.html" with groups=lesson_period.lesson.groups.all %}
-        {% endif %}
-      {% endif %}
-
-      {# Class or room > Display teacher #}
-      {% if type.value == "room" or type.value == "group" %}
-        {% include "chronos/partials/teachers.html" with teachers=lesson_period.lesson.teachers.all %}
-      {% endif %}
-
-      {# Display subject #}
-      {% include "chronos/partials/subject.html" with subject=lesson_period.lesson.subject %}
-
-      {# Teacher or class > Display room #}
-      {% if type.value == "teacher" or type.value == "group" %}
-        {% if lesson_period.room %}
-          {% include "chronos/partials/room.html" with room=lesson_period.room %}
-        {% endif %}
-      {% endif %}
-    {% endif %}
-  </p>
-</div>

aleksis/apps/chronos/templates/chronos/partials/lessons_col.html

-{% if holiday %}
-  <div class="row">
-    <div class="col s12">
-      <div class="card col s12 holiday-card">
-        <div class="card-content">
-          <p>
-            {% include "chronos/partials/holiday.html" with holiday=holiday %}<br/>
-          </p>
-        </div>
-      </div>
-    </div>
-  </div>
-{% else %}
-  {% for row in timetable %}
-    <div class="row">
-      <div class="col s4">
-        {% if row.type == "period" %}
-          {% include "chronos/partials/period_time.html" with period=row.period periods=periods %}
-        {% endif %}
-      </div>
-      <div class="col s8">
-        {% if row.type == "period" %}
-          {% include "chronos/partials/elements.html" with elements=row.col %}
-        {% else %}
-          {% include "chronos/partials/supervision.html" with supervision=row.col %}
-        {% endif %}
-      </div>
-    </div>
-  {% endfor %}
-{% endif %}

aleksis/apps/chronos/templates/chronos/partials/period_time.html

-{% load data_helpers %}
-
-<div class="card timetable-title-card">
-  <div class="card-content">
-
-    {# Lesson number #}
-    <span class="card-title left">
-                                {{ period }}.
-                            </span>
-
-    {# Time dimension of lesson #}
-    <div class="right timetable-time grey-text text-darken-2">
-      {% with period_obj=periods|get_dict:period %}
-        <span>{{ period_obj.0|time }}</span>
-        <br/>
-        <span>{{ period_obj.1|time }}</span>
-      {% endwith %}
-    </div>
-  </div>
-</div>

aleksis/apps/chronos/templates/chronos/partials/room.html

-{% if room %}
-  <span class="tooltipped" data-position="bottom" data-tooltip="{{ room.name }}">
-    <a href="{% url "timetable" "room" room.pk %}">
-      {{ room.short_name }}
-    </a>
-  </span>
-{% endif %}

aleksis/apps/chronos/templates/chronos/partials/rooms.html

+{% for room in rooms %}
+  {{ room.short_name|default:room.name }}{% if not forloop.last %},{% endif %}
+{% endfor %}