diff --git a/components/publisher/PublisherShiftsModal.js b/components/publisher/PublisherShiftsModal.js
index 9b61cff..04968ff 100644
--- a/components/publisher/PublisherShiftsModal.js
+++ b/components/publisher/PublisherShiftsModal.js
@@ -145,4 +145,41 @@ function getColorForShift(shift) {
     }
 }
 
+//ToDo: DRY - move to common
+const addAssignment = async (publisher, shiftId) => {
+    try {
+        console.log(`calendar.idx: new assignment for publisher ${publisher.id} - ${publisher.firstName} ${publisher.lastName}`);
+        const newAssignment = {
+            publisher: { connect: { id: publisher.id } },
+            shift: { connect: { id: shiftId } },
+            isConfirmed: true
+        };
+        const { data } = await axiosInstance.post("/api/data/assignments", newAssignment);
+        if (selectedShiftId == shiftId) {
+            handleShiftSelection(shifts.find(shift => shift.id === shiftId));
+        }
+
+        // Update the 'publisher' property of the returned data with the full publisher object
+        data.publisher = publisher;
+        data.shift = shifts.find(shift => shift.id === shiftId);
+        publisher.assignments = [...publisher.assignments, data];
+        handleAssignmentChange(publisher.id, 'add');
+    } catch (error) {
+        console.error("Error adding assignment:", error);
+    }
+};
+const removeAssignment = async (publisher, shiftId) => {
+    try {
+        const assignment = publisher.assignments.find(ass => ass.shift.id === shiftId);
+        console.log(`calendar.idx: remove assignment for shift ${shiftId}`);
+        const { data } = await axiosInstance.delete(`/api/data/assignments/${assignment.id}`);
+        //remove from local assignments:
+        publisher.assignments = publisher.assignments.filter(a => a.id !== assignment.id)
+        //
+        handleAssignmentChange(publisher.id, 'remove')
+    } catch (error) {
+        console.error("Error removing assignment:", error);
+    }
+}
+
 export default PublisherShiftsModal;
\ No newline at end of file