one_to_many-grades.patch

Index: src/main/java/com/handson/basic/repo/StudentGradeService.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/java/com/handson/basic/repo/StudentGradeService.java b/src/main/java/com/handson/basic/repo/StudentGradeService.java
new file mode 100644
--- /dev/null	(date 1642590659826)
+++ b/src/main/java/com/handson/basic/repo/StudentGradeService.java	(date 1642590659826)
@@ -0,0 +1,33 @@
+package com.handson.basic.repo;
+
+
+import com.handson.basic.model.StudentGrade;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.Optional;
+
+@Service
+public class StudentGradeService {
+
+    @Autowired
+    StudentGradeRepository repository;
+
+    public Iterable<StudentGrade> all() {
+        return repository.findAll();
+    }
+
+    public Optional<StudentGrade> findById(Long id) {
+        return repository.findById(id);
+    }
+
+
+    public StudentGrade save(StudentGrade studentGrade) {
+        return repository.save(studentGrade);
+    }
+
+    public void delete(StudentGrade studentGrade) {
+        repository.delete(studentGrade);
+    }
+
+}
Index: src/main/java/com/handson/basic/repo/StudentGradeRepository.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/java/com/handson/basic/repo/StudentGradeRepository.java b/src/main/java/com/handson/basic/repo/StudentGradeRepository.java
new file mode 100644
--- /dev/null	(date 1642590953167)
+++ b/src/main/java/com/handson/basic/repo/StudentGradeRepository.java	(date 1642590953167)
@@ -0,0 +1,9 @@
+package com.handson.basic.repo;
+
+
+import com.handson.basic.model.StudentGrade;
+import org.springframework.data.repository.CrudRepository;
+
+public interface StudentGradeRepository extends CrudRepository<StudentGrade,Long> {
+
+}
Index: src/main/java/com/handson/basic/controller/StudentsGradesController.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/java/com/handson/basic/controller/StudentsGradesController.java b/src/main/java/com/handson/basic/controller/StudentsGradesController.java
new file mode 100644
--- /dev/null	(date 1642590953171)
+++ b/src/main/java/com/handson/basic/controller/StudentsGradesController.java	(date 1642590953171)
@@ -0,0 +1,63 @@
+package com.handson.basic.controller;
+
+import com.handson.basic.model.GradeIn;
+import com.handson.basic.model.Student;
+import com.handson.basic.model.StudentGrade;
+import com.handson.basic.repo.StudentGradeService;
+import com.handson.basic.repo.StudentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Optional;
+
+
+@RestController
+@RequestMapping("/api/students")
+public class StudentsGradesController {
+    @Autowired
+    StudentService studentService;
+
+    @Autowired
+    StudentGradeService studentGradeService;
+
+
+
+    @RequestMapping(value = "/{studentId}/grades", method = RequestMethod.POST)
+    public ResponseEntity<?> insertStudentGrade(Long studentId,  @RequestBody GradeIn gradeIn)
+    {
+        var student = studentService.findById(studentId);
+        if (student.isEmpty()) throw new RuntimeException("Student:" + studentId +" not found");
+        StudentGrade studentGrade = gradeIn.toGrade(student.get());
+        studentGrade = studentGradeService.save(studentGrade);
+        return new ResponseEntity<>(studentGrade, HttpStatus.OK);
+    }
+
+    @RequestMapping(value = "/{studentId}/grades/{id}", method = RequestMethod.PUT)
+    public ResponseEntity<?> updateStudent(@PathVariable Long studentId, @PathVariable Long id, @RequestBody GradeIn gradeIn)
+    {
+        Optional<Student> dbStudent = studentService.findById(studentId);
+        if (dbStudent.isEmpty()) throw new RuntimeException("Student with id: " + studentId + " not found");
+
+        Optional<StudentGrade> dbStudentGrade = studentGradeService.findById(id);
+        if (dbStudentGrade.isEmpty()) throw new RuntimeException("Student grade with id: " + id + " not found");
+
+        gradeIn.updateStudentGrade(dbStudentGrade.get());
+        StudentGrade updatedStudentGrade = studentGradeService.save(dbStudentGrade.get());
+        return new ResponseEntity<>(updatedStudentGrade, HttpStatus.OK);
+    }
+
+    @RequestMapping(value = "/{studentId}/grades/{id}", method = RequestMethod.DELETE)
+    public ResponseEntity<?> deleteStudentGrade(@PathVariable Long studentId, @PathVariable Long id)
+    {
+        Optional<Student> dbStudent = studentService.findById(studentId);
+        if (dbStudent.isEmpty()) throw new RuntimeException("Student with id: " + studentId + " not found");
+
+        Optional<StudentGrade> dbStudentGrade = studentGradeService.findById(id);
+        if (dbStudentGrade.isEmpty()) throw new RuntimeException("Student grade with id: " + id + " not found");
+
+        studentGradeService.delete(dbStudentGrade.get());
+        return new ResponseEntity<>("DELETED", HttpStatus.OK);
+    }
+}
Index: src/main/java/com/handson/basic/model/StudentGrade.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/java/com/handson/basic/model/StudentGrade.java b/src/main/java/com/handson/basic/model/StudentGrade.java
new file mode 100644
--- /dev/null	(date 1642590659821)
+++ b/src/main/java/com/handson/basic/model/StudentGrade.java	(date 1642590659821)
@@ -0,0 +1,140 @@
+package com.handson.basic.model;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.handson.basic.util.Dates;
+import org.hibernate.validator.constraints.Length;
+import org.joda.time.LocalDateTime;
+
+import javax.persistence.*;
+import javax.validation.constraints.Max;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotEmpty;
+import javax.validation.constraints.NotNull;
+import java.io.Serializable;
+import java.util.Date;
+
+@Entity
+@Table(name="student_grade")
+public class StudentGrade implements Serializable {
+    private static final long serialVersionUID = 1L;
+    @Id
+    @GeneratedValue(strategy= GenerationType.AUTO)
+    private Long id;
+
+    @NotNull
+    @Column(nullable = false, updatable = false)
+    private Date createdAt = Dates.nowUTC();
+
+    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd HH:mm:ss")
+    @JsonProperty("createdAt")
+    public LocalDateTime calcCreatedAt() {
+        return Dates.atLocalTime(createdAt);
+    }
+
+    @JsonIgnore
+    @NotNull
+    @ManyToOne(optional = false)
+    @JoinColumn(name = "studentId")
+    private Student student;
+
+    @NotEmpty
+    @Length(max = 60)
+    private String courseName;
+
+
+    @Min(10)
+    @Max(100)
+    private Integer courseScore;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Date getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setCreatedAt(Date createdAt) {
+        this.createdAt = createdAt;
+    }
+
+    public Student getStudent() {
+        return student;
+    }
+
+    public void setStudent(Student student) {
+        this.student = student;
+    }
+
+    public String getCourseName() {
+        return courseName;
+    }
+
+    public void setCourseName(String courseName) {
+        this.courseName = courseName;
+    }
+
+    public Integer getCourseScore() {
+        return courseScore;
+    }
+
+    public void setCourseScore(Integer courseScore) {
+        this.courseScore = courseScore;
+    }
+
+    public static final class StudentGradeBuilder {
+        private Long id;
+        private Date createdAt = Dates.nowUTC();
+        private Student student;
+        private String courseName;
+        private Integer courseScore;
+
+        private StudentGradeBuilder() {
+        }
+
+        public static StudentGradeBuilder aStudentGrade() {
+            return new StudentGradeBuilder();
+        }
+
+        public StudentGradeBuilder id(Long id) {
+            this.id = id;
+            return this;
+        }
+
+        public StudentGradeBuilder createdAt(Date createdAt) {
+            this.createdAt = createdAt;
+            return this;
+        }
+
+        public StudentGradeBuilder student(Student student) {
+            this.student = student;
+            return this;
+        }
+
+        public StudentGradeBuilder courseName(String courseName) {
+            this.courseName = courseName;
+            return this;
+        }
+
+        public StudentGradeBuilder courseScore(Integer courseScore) {
+            this.courseScore = courseScore;
+            return this;
+        }
+
+        public StudentGrade build() {
+            StudentGrade studentGrade = new StudentGrade();
+            studentGrade.student = this.student;
+            studentGrade.courseName = this.courseName;
+            studentGrade.courseScore = this.courseScore;
+            studentGrade.id = this.id;
+            studentGrade.createdAt = this.createdAt;
+            return studentGrade;
+        }
+    }
+}
Index: src/main/java/com/handson/basic/model/GradeIn.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/src/main/java/com/handson/basic/model/GradeIn.java b/src/main/java/com/handson/basic/model/GradeIn.java
new file mode 100644
--- /dev/null	(date 1642590953173)
+++ b/src/main/java/com/handson/basic/model/GradeIn.java	(date 1642590953173)
@@ -0,0 +1,37 @@
+package com.handson.basic.model;
+
+import org.hibernate.validator.constraints.Length;
+
+import javax.validation.constraints.Max;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotEmpty;
+
+import static com.handson.basic.model.StudentGrade.StudentGradeBuilder.aStudentGrade;
+
+public class GradeIn {
+
+    @NotEmpty
+    @Length(max = 60)
+    private String courseName;
+
+    @Min(10)
+    @Max(100)
+    private Integer courseScore;
+
+    public StudentGrade toGrade(Student student) {
+        return aStudentGrade().student(student).courseName(courseName).courseScore(courseScore).build();
+    }
+
+    public void updateStudentGrade(StudentGrade studentGrade) {
+        studentGrade.setCourseName(courseName);
+        studentGrade.setCourseScore(courseScore);
+    }
+
+    public String getCourseName() {
+        return courseName;
+    }
+
+    public Integer getCourseScore() {
+        return courseScore;
+    }
+}