Setup and forms

paymentLogs/Repositories/StudentRepo.cs

@@ -0,0 +1,63 @@
+using MySql.Data.MySqlClient;
+using PaymentLogs.Domain;
+using PaymentLogs.Utils;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Policy;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PaymentLogs.Repositories
+{
+    internal class StudentRepo : Repo<int, Student>
+    {
+
+        public override void Load()
+        {
+            DataBase db = new DataBase();
+            db.openConnection();
+            _data.Clear();
+            string sql = " SELECT * FROM students  ";
+            MySqlCommand cmd = new MySqlCommand(sql, db.getConnection());
+            MySqlDataReader reader = cmd.ExecuteReader();
+
+            while (reader.Read())
+            {
+                Student student = new Student()
+                {
+                    Id = reader.GetInt32("id"),
+                    FCs = reader.GetString("fcs"),
+                    dateOfBirth = DateTime.ParseExact(reader.GetString("date_of_birth"), "yyyy-MM-dd",null),
+                    Address = reader.GetString("address"),
+                    CourseId = reader.GetInt32("course_id"),
+                    Paid = reader.GetInt32("paid")
+
+                };
+                _data[student.Id] = student;
+            }
+            db.closeConnection();
+        }
+
+
+
+        public override void Save()
+        {
+            DataBase db = new DataBase();
+            db.openConnection();
+            foreach (Student student in All())
+            {
+                string sql = $" INSERT INTO `students` (`id`, `fcs`, `date_of_birth`, `address`, `course_id`, `paid`) " +
+                $"VALUES ('{student.Id}','{student.FCs}','{ String.Format("{0:yyyy-MM-dd}", student.dateOfBirth) }', '{student.Address}'," +
+                $"'{student.CourseId}', '{student.Paid}') " +
+                $"ON DUPLICATE KEY UPDATE `fcs`='{student.FCs}', `date_of_birth`='{String.Format("{0:yyyy-MM-dd}", student.dateOfBirth)}'," +
+                $"`address`='{student.Address}', `course_id`='{student.CourseId}', `paid`='{student.Paid}'";
+                MySqlCommand cmd = new MySqlCommand(sql, db.getConnection());
+                cmd.ExecuteNonQuery();
+            }
+           
+            
+            db.closeConnection();
+        }
+    }
+}