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Added Modules to DBHandler

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Datenbankeinträge fehlen noch.
This commit is contained in:
AlexE030
2023-05-20 00:45:58 +02:00
parent 8a1f0854a6
commit e92712d1d6
3 changed files with 190 additions and 52 deletions
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backend/src/main/java/com/example/backend/anwprj/DataBaseHandler.java
+98
View File
@@ -6,6 +6,7 @@ import com.example.backend.anwprj.Entries.Entry;
import com.example.backend.anwprj.Semesters.Semester;
import com.example.backend.anwprj.Users.User;
import com.example.backend.anwprj.Week.Week;
import com.example.backend.anwprj.Module.Module;
import java.sql.*;
import java.util.ArrayList;
@@ -339,6 +340,103 @@ public class DataBaseHandler
}
}
/**
MODULE
*/
//get a semester object by its name
public Module getModule(String name) {
try {
ResultSet rs = st.executeQuery("SELECT * FROM SEMESTER WHERE name = '" + name + "'");
return resultSetToModule(rs);
}
catch (Exception ex){
return null;
}
}
//get a semester object by its id
public Module getModule(int id) {
try {
ResultSet rs = st.executeQuery("SELECT * FROM Module WHERE id=" + id);
return resultSetToModule(rs);
}
catch (Exception ex) {
return null;
}
}
public Module addModule(Module m)
{
try {
st.executeUpdate("INSERT INTO Module (lecturerId, semesterId, name) " +
"Values (" + m.getLecturerId() + m.getSemesterId() + m.getName() + ")");
return getModule(m.getId());
}
catch (Exception e) {
return null;
}
}
public Module[] getAllModules() {
try
{
ResultSet rs = st.executeQuery("SELECT * FROM semester");
List<Module> moduleList = new ArrayList<>();
Module m = null;
while((m = resultSetToModule(rs)) != null)
{
moduleList.add(m);
}
return moduleList.toArray(new Module[0]);
}
catch(Exception e)
{
return null;
}
}
public Module updateModule(Module m)
{
try {
st.executeUpdate("UPDATE module SET lecturerId=" + m.getLecturerId() + ", " +
"semesterId=" + m.getSemesterId() + ", " +
"name='" + m.getName() + "'");
return getModule(m.getId());
}
catch (SQLException ex) {
ex.printStackTrace();
return null;
}
}
public boolean deleteModule(int id)
{
try {
st.executeUpdate("DELETE FROM module WHERE id=" + id);
return true;
}
catch(Exception ex) {
return false;
}
}
public Module resultSetToModule(ResultSet rs) {
try {
rs.next();
return new Module(
rs.getInt("id"),
rs.getInt("lecturerId"),
rs.getInt("semesterId"),
rs.getString("name"));
}
catch (Exception ex) {
return null;
}
}
/**
USER
*/
backend/src/main/java/com/example/backend/anwprj/Module/Module.java
+2 -2
View File
@@ -7,9 +7,9 @@ public class Module {
private final int semesterId;
private final String name;
public Module(int id, int userId, int semesterId, String name){
public Module(int id, int lecturerId, int semesterId, String name){
this.id = id;
this.lecturerId = userId;
this.lecturerId = lecturerId;
this.semesterId = semesterId;
this.name = name;
}
backend/src/main/java/com/example/backend/anwprj/controller/ModuleController.java
+90 -50
View File
@@ -2,61 +2,101 @@ package com.example.backend.anwprj.controller;
import com.example.backend.anwprj.DataBaseHandler;
import com.example.backend.anwprj.Module.Module;
import com.example.backend.anwprj.Semesters.Semester;
import com.example.backend.anwprj.Users.User;
import com.example.backend.anwprj.Users.UserPermissions;
import com.example.backend.anwprj.Users.UserSessionIDHandler;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.*;
@RestController
public class ModuleController {
// private final DataBaseHandler db;
//
// {
// db = DataBaseHandler.getInstance();
// }
//
// @CrossOrigin
// @GetMapping("placeholder")
// public ResponseEntity<Module> getModule(
// @RequestParam(name="id") int id,
// @RequestParam(name="sessionid") String sessionID) {
//
// User user = UserSessionIDHandler.getUserBySessionID(sessionID);
//
// if (user != null){
// Module module = db.getModule(id);
// if(module != null) {
// return new ResponseEntity<>(module, HttpStatus.OK);
// }
//
// return new ResponseEntity<>(HttpStatus.NOT_FOUND);
// }
//
// return new ResponseEntity<>(HttpStatus.FORBIDDEN);
// }
//
// @CrossOrigin
// @GetMapping("placeholder")
// public ResponseEntity<Module> getModule(
// @RequestParam(name="name") String name,
// @RequestParam(name="sessionid") String sessionID) {
//
// User user = UserSessionIDHandler.getUserBySessionID(sessionID);
//
// if(user != null)
// {
// Module module = db.getModule(name);
// if (module != null) {
// return new ResponseEntity<>(module, HttpStatus.OK);
// }
//
// return new ResponseEntity<>(HttpStatus.NOT_FOUND);
// }
//
// return new ResponseEntity<>(HttpStatus.FORBIDDEN);
// }
private final DataBaseHandler db;
{
db = DataBaseHandler.getInstance();
}
@CrossOrigin
@GetMapping("/module")
public ResponseEntity<Module> getModule(
@RequestParam(name="id") int id,
@RequestParam(name="sessionid") String sessionID) {
User user = UserSessionIDHandler.getUserBySessionID(sessionID);
if (user != null){
Module module = db.getModule(id);
if(module != null) {
return new ResponseEntity<>(module, HttpStatus.OK);
}
return new ResponseEntity<>(HttpStatus.NOT_FOUND);
}
return new ResponseEntity<>(HttpStatus.FORBIDDEN);
}
@CrossOrigin
@GetMapping("/module/id")
public ResponseEntity<Module> getModule(
@RequestParam(name="name") String name,
@RequestParam(name="sessionid") String sessionID) {
User user = UserSessionIDHandler.getUserBySessionID(sessionID);
if(user != null)
{
Module module = db.getModule(name);
if (module != null) {
return new ResponseEntity<>(module, HttpStatus.OK);
}
return new ResponseEntity<>(HttpStatus.NOT_FOUND);
}
return new ResponseEntity<>(HttpStatus.FORBIDDEN);
}
@CrossOrigin
@GetMapping("/module/all")
public ResponseEntity<Module[]> getModule(@RequestParam(name="sessionid") String sessionid) {
User u = UserSessionIDHandler.getUserBySessionID(sessionid);
if(u != null) {
if(u.getPermissions() == UserPermissions.admin.getValue()) {
return new ResponseEntity<>(db.getAllModules(), HttpStatus.OK);
}
}
return null;
}
@CrossOrigin
@PutMapping("/module")
public ResponseEntity<Module> updateModule(@RequestBody Module module, @RequestParam(name="sessionid") String sessionID) {
User u = UserSessionIDHandler.getUserBySessionID(sessionID);
if(u != null && u.getPermissions() == UserPermissions.admin.getValue()) {
Module m = db.updateModule(module);
if(m != null) {
return new ResponseEntity<>(m, HttpStatus.OK);
}
return new ResponseEntity<>(HttpStatus.NOT_FOUND);
}
return new ResponseEntity<>(HttpStatus.FORBIDDEN);
}
@CrossOrigin
@DeleteMapping("/module")
public void deleteModule(@RequestParam(name="sessionid") String sessionid, @RequestParam(name="id") int id) {
User u = UserSessionIDHandler.getUserBySessionID(sessionid);
if(u != null && u.getPermissions() == UserPermissions.admin.getValue()) {
db.deleteModule(id);
}
}
}