add cascade to employees in Department entity

src/main/java/com/pfa/pack/models/entities/Department.java

@@ -4,8 +4,10 @@
 import java.util.Collections;
 import java.util.Set;
 
+import javax.persistence.CascadeType;
 import javax.persistence.Column;
 import javax.persistence.Entity;
+import javax.persistence.FetchType;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
@@ -39,7 +41,7 @@ public final class Department implements Serializable {
 	private Location location;
 
 	@JsonIgnore
-	@OneToMany(mappedBy = "department")
+	@OneToMany(mappedBy = "department", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
 	private Set<Employee> employees;
 
 	public Department() {

src/main/resources/templates/admins/departments/admin-departments-list.html

@@ -35,7 +35,7 @@ <h2 th:case="null">No Records yet!</h2>
 							<td th:text="${d.departmentName}"></td>
 							<td th:text="${d.location.adr + ', ' + d.location.postalCode + ', ' + d.location.city}"></td>
 							<td><a class='btn btn-outline-warning' th:href="@{/app/admins/departments/admin-departments-edit(departmentId=${d.departmentId})}">Edit</a></td>
-							<td><a class='btn btn-outline-danger' th:href="@{/app/admins/departments/admin-departments-delete(departmentId=${d.departmentId})}" onClick="if (!(confirm('Do you confirm you want DELETE this department ?'))) return false" >Delete</a></td>
+							<td><a class='btn btn-outline-danger' th:href="@{/app/admins/departments/admin-departments-delete(departmentId=${d.departmentId})}" onClick="if (!(confirm('Do you confirm you want DELETE this department ?\n this will provoke deletion of employees related to this department'))) return false" >Delete</a></td>
 		                </tr>
 	            	</tbody>
 	        	</table>