started work on task assignment table

backend/pkg/db/availabilities/userAvailabilities.go

@@ -0,0 +1,36 @@
+package availabilities
+
+import (
+	"github.com/johannesbuehl/golunteer/backend/pkg/db"
+	"github.com/johannesbuehl/golunteer/backend/pkg/db/users"
+)
+
+type eventAvailabilities struct {
+	UserName       string `db:"userName"`
+	AvailabilityID int    `db:"availabilityID"`
+}
+
+func Event(eventID int) (map[string]string, error) {
+	// get the availabilities for the event
+	var availabilitiesRows []eventAvailabilities
+
+	if err := db.DB.Select(&availabilitiesRows, "SELECT userName, availabilityID FROM USER_AVAILABILITIES WHERE eventID = ?", eventID); err != nil {
+		return nil, err
+	} else {
+		// transform the result into a map
+		eventAvailabilities := map[string]string{}
+
+		// get the availabilities
+		if availabilitiesMap, err := Keys(); err != nil {
+			return nil, err
+		} else if usersMap, err := users.Get(); err != nil {
+			return nil, err
+		} else {
+			for _, a := range availabilitiesRows {
+				eventAvailabilities[usersMap[a.UserName].Name] = availabilitiesMap[a.AvailabilityID].Text
+			}
+
+			return eventAvailabilities, nil
+		}
+	}
+}