diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssignment.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssignment.java
index e2e86792d..2498e6d4c 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssignment.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/DayAssignment.java
@@ -32,6 +32,7 @@ import java.util.Map;
 import java.util.Set;
 import java.util.Map.Entry;
 
+import org.apache.commons.lang.ObjectUtils;
 import org.apache.commons.lang.Validate;
 import org.hibernate.validator.Min;
 import org.hibernate.validator.NotNull;
@@ -145,6 +146,17 @@ public abstract class DayAssignment extends BaseEntity {
         return getOfType(GenericDayAssignment.class, dayAssignments);
     }
 
+    public static <T extends DayAssignment> List<T> withScenario(
+            Scenario scenario, Collection<T> dayAssignments) {
+        List<T> result = new ArrayList<T>();
+        for (T each : dayAssignments) {
+            if (ObjectUtils.equals(each.getScenario(), scenario)) {
+                result.add(each);
+            }
+        }
+        return result;
+    }
+
     @Min(0)
     private int hours;