projet spring boot

pom.xml

@@ -15,6 +15,8 @@
 	<description>StudentsAbsence</description>
 	<properties>
 		<java.version>11</java.version>
+		<maven.compiler.source>17</maven.compiler.source>
+		<maven.compiler.target>17</maven.compiler.target>
 	</properties>
 	<dependencies>
 		<dependency>

src/main/java/de/tekup/studentsabsence/controllers/GroupController.java

@@ -139,8 +139,48 @@ public String addAbsenceView(@PathVariable long id, Model model) {
 
     @PostMapping("/{id}/add-absences")
     public String addAbsence(@PathVariable long id, @Valid Absence absence, BindingResult bindingResult, @RequestParam(value = "students", required = false) List<Student> students, Model model) {
-        //TODO Complete the body of this method
+
+
+        if(bindingResult.hasErrors()) {
+            model.addAttribute("group",groupService.getGroupById(id));
+            model.addAttribute("subjects",groupService.getGroupById(id).getGroupSubjects());
+            model.addAttribute("students",groupService.getGroupById(id).getStudents());
+
+            return "groups/add-absences";
+        }
+        Absence absence1=new Absence();
+        absence1.setSubject(absence.getSubject());
+        absence1.setHours(absence.getHours());
+        absence1.setStartDate(absence.getStartDate());
+
+
+
+        for (Student student:students
+             ) {
+            absence1.setStudent(student);
+
+            absenceService.addAbsence(absence1);
+
+
+        }
+
+
+
+
+
+
+
+
+
+
+
+
+
+
         return "redirect:/groups/"+id+"/add-absences";
     }
 
+
+
+
 }

src/main/java/de/tekup/studentsabsence/controllers/StudentController.java

@@ -9,6 +9,7 @@
 import org.apache.tomcat.util.http.fileupload.IOUtils;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.util.StringUtils;
 import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
@@ -91,7 +92,19 @@ public String addImageView(@PathVariable Long sid, Model model) {
 
     @PostMapping("/{sid}/add-image")
     //TODO complete the parameters of this method
-    public String addImage() {
+    public String addImage(@PathVariable Long sid,@RequestParam("image") MultipartFile file) throws IOException {
+
+
+        Student student=studentService.getStudentBySid(sid);
+        Image image=new Image();
+        image.setStudent(student);
+        image.setData(file.getBytes());
+        image.setFileName(StringUtils.cleanPath(file.getOriginalFilename()));
+        image.setFileType(file.getContentType());
+        student.setImage(image);
+        studentService.updateStudent(student);
+
+
         //TODO complete the body of this method
         return "redirect:/students";
     }

src/main/java/de/tekup/studentsabsence/entities/Absence.java

@@ -3,6 +3,7 @@
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import lombok.ToString;
 import org.springframework.format.annotation.DateTimeFormat;
 
 import javax.persistence.*;
@@ -12,10 +13,12 @@
 import java.io.Serializable;
 import java.time.LocalDateTime;
 
+
 @Entity
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
+@ToString(exclude = {"subject"})
 public class Absence implements Serializable {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -29,5 +32,13 @@ public class Absence implements Serializable {
     private float hours;
    //TODO Complete Relations with other entities
 
+    // relation Many to one (Student ,absence )
+    @ManyToOne
+   private Student student;
+    // relation one to one (subject ,absence )
+    @OneToOne
+   private   Subject subject;
+
+
 
 }

src/main/java/de/tekup/studentsabsence/entities/Group.java

@@ -10,6 +10,8 @@
 import javax.persistence.*;
 import javax.validation.constraints.NotBlank;
 import javax.validation.constraints.NotNull;
+import java.util.List;
+
 @Entity
 @Data
 @ToString(exclude = "students")
@@ -29,7 +31,16 @@ public class Group {
     @NotNull(message = "Speciality is required")
     @Enumerated(EnumType.STRING)
     private SpecialityEnum speciality;
+
     //TODO Complete Relations with other entities
+    // relation one to many (Student ,group )
+    @OneToMany(mappedBy = "group")
+    private  List<Student> students;
+
+    // relation one to many (Group ,GroupSubject )
+    @OneToMany(mappedBy = "group")
+   private List<GroupSubject> groupSubjects;
+
 
 
 

src/main/java/de/tekup/studentsabsence/entities/GroupSubject.java

@@ -15,15 +15,19 @@ public class GroupSubject implements Serializable {
     @EmbeddedId
     private GroupSubjectKey id;
 
+
+
+    // relation many to one (GroupSubject ,group )
     @ManyToOne
-    @MapsId("group_id")
+    @MapsId("groupId")
     @JoinColumn(name = "group_id")
     private Group group;
-
+    // relation many to one (GroupSubject ,Subject )
     @ManyToOne
-    @MapsId("subject_id")
+    @MapsId("subjectId")
     @JoinColumn(name = "subject_id")
     private Subject subject;
 
     private float hours;
+
 }

src/main/java/de/tekup/studentsabsence/entities/Image.java

@@ -5,10 +5,7 @@
 import lombok.NoArgsConstructor;
 import org.hibernate.annotations.GenericGenerator;
 
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.Id;
-import javax.persistence.Lob;
+import javax.persistence.*;
 
 @Entity
 @Data
@@ -23,4 +20,12 @@ public class Image {
     private String fileType;
     @Lob
     private byte[] data;
+    // relation one to one (image  ,Absence )
+    @OneToOne(mappedBy = "image")
+    private Student student;
+    // relation one to one (subject ,absence )
+    @OneToOne(mappedBy = "subject")
+    private Absence Absence;
+    public Image(Object o, String fileName, String fileType, byte[] data) {
+    }
 }

src/main/java/de/tekup/studentsabsence/entities/Student.java

@@ -7,9 +7,10 @@
 import org.springframework.format.annotation.DateTimeFormat;
 
 import javax.persistence.*;
-import javax.validation.constraints.*;
 import java.io.Serializable;
 import java.time.LocalDate;
+import java.util.List;
+
 @Entity
 @Data
 @AllArgsConstructor
@@ -28,6 +29,24 @@ public class Student implements Serializable {
     @DateTimeFormat(pattern = "dd-MM-yyyy")
     private LocalDate dob;
 
+
+
+
+    //TODO Complete Relations with other entities
+    // relation one to one (image  ,Absence )
+    @OneToOne(cascade = CascadeType.ALL)
+    @JoinColumn(name = "image_id", referencedColumnName = "id")
+    Image image;
+
+    // relation  many to one (Student ,group )
+    @ManyToOne
+    Group group;
+    // relation one to many (Student ,absence )
+    @OneToMany(mappedBy = "student",fetch = FetchType.LAZY)
+    private List<Absence> absences;
+
+
+
     //TODO Complete Relations with other entities
 
 

src/main/java/de/tekup/studentsabsence/entities/Subject.java

@@ -4,22 +4,29 @@
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
+import javax.persistence.*;
 import javax.validation.constraints.NotBlank;
 import java.io.Serializable;
+import java.util.List;
+
 
 @Entity
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
+
+
 public class Subject implements Serializable {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
     @NotBlank(message = "Name is required")
     private String name;
+    // relation one to one (subject ,absence )
+    @OneToOne(mappedBy = "subject")
+    private Absence absence;
+    // relation one to many (Subject ,GroupSubject )
+    @OneToMany(mappedBy = "subject")
+   private List<GroupSubject> groupSubjects;
 
 }

src/main/java/de/tekup/studentsabsence/repositories/GroupSubjectRepository.java

@@ -6,9 +6,9 @@
 import org.springframework.data.repository.CrudRepository;
 
 import java.util.List;
-import java.util.Optional;
 
 public interface GroupSubjectRepository extends CrudRepository<GroupSubject, GroupSubjectKey> {
     List<GroupSubject> findAllByGroup(Group id);
+    GroupSubject findGroupSubjectByGroupIdAndSubjectId(Long gid,Long sid);
     ///TODO create a methode to find a groupSubject by Group Id and Subject Id
 }

src/main/java/de/tekup/studentsabsence/repositories/SubjectRepository.java

@@ -3,5 +3,9 @@
 import de.tekup.studentsabsence.entities.Subject;
 import org.springframework.data.repository.CrudRepository;
 
+import java.util.List;
+
 public interface SubjectRepository extends CrudRepository<Subject, Long> {
+    @Override
+    List<Subject> findAll();
 }

src/main/java/de/tekup/studentsabsence/services/ImageService.java

@@ -6,7 +6,7 @@
 import java.io.IOException;
 
 public interface ImageService {
-    Image getImage(String id);
+    Image getImage(String id) throws Exception;
 
     Image addImage(MultipartFile image) throws IOException;
 }

src/main/java/de/tekup/studentsabsence/services/StudentService.java

@@ -3,6 +3,7 @@
 import de.tekup.studentsabsence.entities.Student;
 
 import java.util.List;
+import java.util.Optional;
 
 public interface StudentService {
     List<Student> getAllStudents();
@@ -13,5 +14,5 @@ public interface StudentService {
 
     Student updateStudent(Student student);
 
-    Student deleteStudent(Long sid);
+    Optional<Student> deleteStudent(Long sid);
 }

src/main/java/de/tekup/studentsabsence/services/impl/AbsenceServiceImp.java

@@ -31,22 +31,25 @@ public List<Absence> getAllAbsencesByGroupId(Long id) {
 
     @Override
     public List<Absence> getAllAbsencesByStudentId(Long sid) {
-        List<Absence> absences = new ArrayList<>();
+        List<Absence> absences =absenceRepository.findAllByStudent_Sid(sid);
         //TODO complete the missing instructions
         return absences;
     }
 
     @Override
     public List<Absence> getAllAbsencesByStudentIdAndSubjectId(Long sid, Long id) {
-        List<Absence> absences = new ArrayList<>();
-        //TODO complete the missing instructions
+        List<Absence> absences = absenceRepository.findAllByStudent_SidAndSubject_Id(sid,id);
+
         return absences;
     }
 
     @Override
     public List<Absence> getAllAbsencesByGroupIdAndSubjectId(Long gid, Long id) {
         List<Absence> absences = new ArrayList<>();
+        System.out.println(gid);
         absenceRepository.findAllByStudent_Group_IdAndSubject_Id(gid, id).forEach(absences::add);
+        System.out.println("#######################  abs#############################");
+        System.out.println(absences);
         return absences;
     }
 
@@ -57,6 +60,12 @@ public Absence getAbsenceById(Long id) {
 
     @Override
     public Absence addAbsence(Absence absence) {
+
+        System.out.println(absence);
+
+
+
+
         return absenceRepository.save(absence);
     }
 
@@ -82,12 +91,22 @@ public float hoursCountByGroupAndSubject(Long gid, Long id) {
     @Override
     public float hoursCountByStudentAndSubject(Long sid, Long id) {
         List<Absence> absences = getAllAbsencesByStudentIdAndSubjectId(sid, id);
+
+        System.out.println(absences);
         return countHours(absences);
     }
     //TODO Complete the countHours method
     public float countHours(List<Absence> absences) {
+        float count=0 ;
+        for (Absence absence:absences
+             ) {
+            count =count+absence.getHours();
+
+        }
+
+        System.out.println(count);
 
-        return 0;
+        return count;
     }
 
 }