Add properties for easier usage of breaks

aleksis/apps/chronos/models.py

@@ -678,6 +678,22 @@ class Break(ExtensibleModel):
                                   verbose_name=_("Effective end of break"),
                                   related_name="break_before", blank=True, null=True)
 
+    @property
+    def weekday(self):
+        return (
+            self.after_period.weekday
+            if self.after_period
+            else self.before_period.weekday
+        )
+
+    @property
+    def before_period_number(self):
+        return (
+            self.before_period.period
+            if self.before_period
+            else self.after_period.period + 1
+        )
+
     class Meta:
         ordering = ["after_period"]
         indexes = [models.Index(fields=["after_period", "before_period"])]