Added endpoints

buisnesslogic/src/main/java/com/plannaplan/entities/Course.java

@@ -22,6 +22,10 @@ public class Course {
     public Course() {
     }
 
+    public Long getId() {
+        return this.id;
+    }
+
     public String getName() {
         return name;
     }

buisnesslogic/src/main/java/com/plannaplan/entities/Lecturer.java

@@ -44,4 +44,7 @@ public class Lecturer {
         this.surname = surname;
     }
 
+    public Lecturer() {
+    }
+
 }

buisnesslogic/src/main/java/com/plannaplan/repositories/GroupRepository.java

@@ -1,5 +1,7 @@
 package com.plannaplan.repositories;
 
+import java.util.List;
+
 import com.plannaplan.entities.Groups;
 
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -11,4 +13,8 @@ import org.springframework.stereotype.Repository;
 public interface GroupRepository extends JpaRepository<Groups, Long> {
     @Query(value = "SELECT * FROM groups WHERE time = :time AND room = :room AND capacity = :capacity ", nativeQuery = true)
     Groups find(@Param("time") int time, @Param("room") String room, @Param("capacity") int capacity);
+
+    @Query(value = "SELECT * FROM groups WHERE course_id = :id", nativeQuery = true)
+    List<Groups> getByCourse(@Param("id") Long id);
+
 }

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

@@ -1,5 +1,7 @@
 package com.plannaplan.services;
 
+import java.util.List;
+
 import com.plannaplan.entities.Course;
 import com.plannaplan.repositories.CourseRepository;
 
@@ -15,6 +17,10 @@ public class CourseService {
         return this.repo.findByName(name);
     }
 
+    public List<Course> getAllCourses() {
+        return this.repo.findAll();
+    }
+
     public void save(Course course) {
         this.repo.save(course);
     }

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

@@ -1,5 +1,7 @@
 package com.plannaplan.services;
 
+import java.util.List;
+
 import com.plannaplan.entities.Groups;
 import com.plannaplan.repositories.GroupRepository;
 
@@ -18,6 +20,10 @@ public class GroupService {
         return this.repo.find(time, room, capacity);
     }
 
+    public List<Groups> getGroupsByCourse(Long id) {
+        return this.repo.getByCourse(id);
+    }
+
     public void save(Groups group) {
         this.repo.save(group);
     }