Schedule taken places

buisnesslogic/src/main/java/com/plannaplan/services/GroupService.java

@@ -7,6 +7,7 @@ import java.util.Optional;
 import java.util.stream.Collectors;
 import java.util.function.Function;
 
+import com.plannaplan.entities.Assignment;
 import com.plannaplan.entities.Groups;
 import com.plannaplan.repositories.GroupRepository;
 
@@ -30,7 +31,7 @@ public class GroupService {
         return this.repo.find(time, room, capacity);
     }
 
-    public Optional<Groups> find(Integer zajCykId, Integer nrGr ) {
+    public Optional<Groups> find(Integer zajCykId, Integer nrGr) {
         return this.repo.find(zajCykId, nrGr);
     }
 
@@ -64,6 +65,16 @@ public class GroupService {
 
     }
 
+    /**
+     * 
+     * @param assingemnts list of assingemnts you want to get taken places ammount
+     * @return HashMap<Long, Integer> where Long is group id and Integer is how many
+     *         places in gorup is already taken
+     */
+    public HashMap<Long, Integer> getTakenPlacesOfAssignments(List<Assignment> assignments) {
+        return getTakenPlaces(assignments.stream().map(Assignment::getGroup).collect(Collectors.toList()));
+    }
+
     /**
      * 
      * @param groups list of groups you want to get taken places ammount