74 lines
2.4 KiB
C#
74 lines
2.4 KiB
C#
using MySql.Data.MySqlClient;
|
|
using PaymentLogs.Domain;
|
|
using PaymentLogs.Utils;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Data;
|
|
using System.Linq;
|
|
using System.Security.Policy;
|
|
using System.Text;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace PaymentLogs.Repositories
|
|
{
|
|
internal class CourseRepo : Repo<int, Course>
|
|
{
|
|
|
|
public override void Load()
|
|
{
|
|
DataBase db = new DataBase();
|
|
db.openConnection();
|
|
_data.Clear();
|
|
string sql = " SELECT * FROM courses ";
|
|
MySqlCommand cmd = new MySqlCommand(sql, db.getConnection());
|
|
MySqlDataReader reader = cmd.ExecuteReader();
|
|
|
|
while (reader.Read())
|
|
{
|
|
Course course = new Course() {
|
|
Id = reader.GetInt32("id"),
|
|
Name = reader.GetString("name"),
|
|
Type = reader.GetString("type"),
|
|
Cost = reader.GetInt32("cost"),
|
|
Duration = reader.GetInt32("duration"),
|
|
StudentsCount = reader.GetInt32("students_count")
|
|
};
|
|
_data[course.Id] = course;
|
|
}
|
|
db.closeConnection();
|
|
}
|
|
|
|
|
|
public override void Save()
|
|
{
|
|
|
|
foreach(Course course in All())
|
|
{
|
|
DataBase db = new DataBase();
|
|
db.openConnection();
|
|
string sql = $" INSERT INTO `courses` (`id`, `name`, `type`, `cost`, `duration`, `students_count`) VALUES ('{course.Id}'," +
|
|
$"'{course.Name}', '{course.Type}', '{course.Cost}', '{course.Duration}', '{course.StudentsCount}') " +
|
|
$"ON DUPLICATE KEY UPDATE `name`='{course.Name}', `type`='{course.Type}', `cost`='{course.Cost}', `duration`='{course.Duration}'," +
|
|
$"`students_count`='{course.StudentsCount}' ";
|
|
MySqlCommand cmd = new MySqlCommand(sql, db.getConnection());
|
|
cmd.ExecuteNonQuery();
|
|
db.closeConnection();
|
|
}
|
|
|
|
|
|
}
|
|
|
|
public Course ByName(string name)
|
|
{
|
|
foreach (var course in _data.Values)
|
|
{
|
|
if (course.Name.ToLower().Equals(name.ToLower()))
|
|
{
|
|
return course;
|
|
}
|
|
}
|
|
return _data.Values.FirstOrDefault();
|
|
}
|
|
}
|
|
}
|