DAOTutor

backend/src/main/java/mx/uv/Controller/DAOTutor.java

@@ -0,0 +1,127 @@
+package mx.uv.Controller;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+
+import mx.uv.Model.Tutor;
+
+
+public class DAOTutor {
+
+    private static Conexion cn = Conexion.getInstance();
+    
+    public static List<Tutor> dameTutores() {
+        Statement stm = null;
+        ResultSet rs = null;
+        Connection conn = null;
+        List<Tutor> resultado = new ArrayList<>();
+
+        conn = cn.conectar();
+
+        try {
+            String sql = "SELECT * from tutor";
+            stm = conn.createStatement();
+            rs = stm.executeQuery(sql);
+            while (rs.next()) {
+                Tutor u = new Tutor(rs.getInt(1), rs.getString(2), rs.getString(3),rs.getString(4), rs.getString(5),rs.getString(6));
+                resultado.add(u);
+            }
+        } catch (Exception e) {
+            System.out.println(e);
+        } finally {
+            cerrarConexiones(null, conn);
+        }
+        return resultado;
+    }
+
+    public static boolean validarTutor(Tutor tutor){
+        Statement stm = null;
+        Connection conn = null;
+        boolean verificacion =false;
+        ResultSet rs = null;
+        conn = cn.conectar();
+        try {
+                String sql ="select * from tutor " 
+                        + "where id= '"+tutor.getId()+"' and nombre='"+tutor.getNombre()+"'";
+                stm = (Statement) conn.createStatement();
+                rs = stm.executeQuery(sql);
+                if(rs.next()){
+                    verificacion = true;
+                }else{
+                    verificacion = false;
+                }
+                conn.close();
+            } catch (Exception ex) {
+                System.err.println(ex);
+            }
+        return verificacion;
+    }
+
+    public static boolean agregarTutor(Tutor tutor) {
+        PreparedStatement stm = null;
+        Connection conn = null;
+        boolean msj = false;
+
+        conn = cn.conectar();
+        try {
+            String sql = "INSERT INTO `tutor`(`nombre`,`apellido`,`parentesco`,`ocupacion`,`telefono`)VALUES(?,?,?,?,?);";
+            stm = (PreparedStatement) conn.prepareStatement(sql);
+            stm.setString(1, tutor.getNombre());
+            stm.setString(2, tutor.getApellido());
+            stm.setString(3, tutor.getParentesco());
+            stm.setString(4, tutor.getOcupacion());
+            stm.setString(5, tutor.getTelefono());
+        } catch (Exception e) {
+            System.out.println(e);
+        } finally {
+            //cerrarConexiones(stm, conn);
+        }
+        return msj;
+    }
+
+    private static void cerrarConexiones(PreparedStatement stm, Connection conn){
+        if(stm != null){
+            try {
+                stm.close();
+            } catch (Exception e) {
+                System.out.println(e);
+            }
+            stm = null;
+        }
+        try{
+            conn.close();
+            cn.cerrarConexion();
+        } catch (Exception e) {
+            System.out.println(e);
+        }
+    }
+
+    public static boolean eliminarTutor(Tutor tutor) {
+        return false;
+    }
+
+    public static boolean editarTutor(Tutor tutor) {
+        PreparedStatement stm = null;
+        Connection conn = null;
+        boolean verificacion = false;
+        conn = cn.conectar();
+        try{
+            String sql ="UPDATE `tutor` SET `nombre` = '"+tutor.getNombre()+"',`apellido` = '"+tutor.getApellido()+"',`parentesco` = '"+tutor.getParentesco()+"',`ocupacion` = '"+tutor.getOcupacion()+"', `telefono` = '"+tutor.getTelefono()+"';";
+            stm = conn.prepareStatement(sql);
+            stm.executeQuery();
+            verificacion = true;
+        } catch (SQLException ex){
+            System.out.println(ex);
+        } finally {
+            cerrarConexiones(stm, conn);
+            cn.cerrarConexion();
+        }
+        return verificacion;
+    }
+
+}