Fix imports

src/main/java/nl/tudelft/ewi/queue/controller/CourseController.java

@@ -42,11 +42,9 @@ import nl.tudelft.ewi.queue.model.*;
 import nl.tudelft.ewi.queue.model.Assignment;
 import nl.tudelft.ewi.queue.model.Assistant;
 import nl.tudelft.ewi.queue.model.Course;
-import nl.tudelft.ewi.queue.model.Lab;
 import nl.tudelft.ewi.queue.model.Manager;
 import nl.tudelft.ewi.queue.model.QCourse;
 import nl.tudelft.ewi.queue.model.Request;
-import nl.tudelft.ewi.queue.model.RequestEntity;
 import nl.tudelft.ewi.queue.model.Role;
 import nl.tudelft.ewi.queue.model.Student;
 import nl.tudelft.ewi.queue.model.Teacher;
@@ -66,8 +64,6 @@ import nl.tudelft.ewi.queue.service.LabService;
 import nl.tudelft.ewi.queue.service.RequestService;
 import nl.tudelft.ewi.queue.validator.ParticipantValidator;
 import nl.tudelft.ewi.queue.viewmodel.AssignmentViewModel;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.support.PagedListHolder;
 import org.springframework.data.domain.Page;
@@ -85,9 +81,21 @@ import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.InitBinder;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.multipart.MultipartFile;
 import org.springframework.web.servlet.mvc.support.RedirectAttributes;
 
+import javax.persistence.EntityNotFoundException;
+import javax.validation.Valid;
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Collectors;
 import com.querydsl.core.types.dsl.BooleanExpression;
 
 @Controller