Add fixes to slot select

aleksis/apps/alsijil/frontend/components/coursebook/absences/AbsenceCreationForm.vue

@@ -186,16 +186,19 @@ export default {
     getPeriodsForWeekday(weekday) {
       // Adapt from python conventions
       const pythonWeekday = weekday - 1;
-      return this.periodsByDay.find(
+      let periodsForWeekday = this.periodsByDay.find(
         (period) => period.weekday === pythonWeekday,
-      ).periods;
+      );
+      if (!periodsForWeekday) return false;
+      return periodsForWeekday.periods;
     },
     handleStartDate(date) {
       this.start = DateTime.fromISO(date);
 
-      if (this.periodsByDay.length > 0) {
+      if (this.periodsByDay && this.periodsByDay.length > 0) {
         // Select periods for day
         this.startPeriods = this.getPeriodsForWeekday(this.start.weekday);
+        if (!this.startPeriods) return;
         // Sync PeriodSelect
         const startTime = this.start.toFormat("HH:mm:ss");
         this.startSlot = this.startPeriods.find(
@@ -206,9 +209,10 @@ export default {
     handleEndDate(date) {
       this.end = DateTime.fromISO(date);
 
-      if (this.periodsByDay.length > 0) {
+      if (this.periodsByDay && this.periodsByDay.length > 0) {
         // Select periods for day
         this.endPeriods = this.getPeriodsForWeekday(this.end.weekday);
+        if (!this.endPeriods) return;
         // Sync PeriodSelect
         const endTime = this.end.toFormat("HH:mm:ss");
         this.endSlot = this.endPeriods.find(

aleksis/apps/alsijil/schema/__init__.py

@@ -368,7 +368,9 @@ class Query(graphene.ObjectType):
             Slot = apps.get_model("lesrooster", "Slot")
             ValidityRange = apps.get_model("lesrooster", "ValidityRange")
             slots = (
-                Slot.objects.filter(time_grid__validity_range=ValidityRange.current)
+                Slot.objects.filter(
+                    time_grid__validity_range=ValidityRange.current, period__isnull=False
+                )
                 .order_by("weekday")
                 .values("weekday", "period", "time_start", "time_end")
             )