BathhouseManagment/Models/Database/PositionRepository.cs

using System;
using System.Collections.Generic;
using BathHouseManagmet.Models;
using BathHouseManagmet.Models.Database;
using Microsoft.Extensions.Options;
using MySqlConnector;

namespace BathHouseManagmet.Database;

public class PositionRepository : BaseRepository<Position>, IDisposable
{
    public PositionRepository()
    {
        OpenConnection();
    }
    
    public override List<Position> GetPage(int pageNumber, int pageSize)
    {
        List<Position> result = new();
        string sql = "select * from `position` limit @limit offset @offset";
        try
        {
            using var command = new MySqlCommand(sql, connection);
            command.Parameters.AddWithValue("@limit", pageNumber);
            command.Parameters.AddWithValue("@offset", pageNumber * pageSize);
            using var reader = command.ExecuteReader();
            while (reader.Read())
            {
                result.Add(new Position
                {
                    Id = reader.GetInt32("id"),
                    Name = reader.GetString("name"),
                });
            }
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
        }
        return result;
    }

    public override bool Add(Position position)
    {
        string sql = "insert into `position` (`id`, `name`) values (0, @name)";
        try
        {
            using (var command = new MySqlCommand(sql, connection))
            {
                command.Parameters.AddWithValue("@id", position.Id);
                command.Parameters.AddWithValue("@name", position.Name);
                command.ExecuteNonQuery();
            }
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
            return false;
        }
        return true;
    }

    public override bool Update(Position position)
    {
        string sql = "update `position` set name = @name";
        try
        {
            using (var command = new MySqlCommand(sql, connection))
            {
                command.Parameters.AddWithValue("@name", position.Name);
                command.ExecuteNonQuery();
            }
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
            return false;
        }
        return true;
    }

    public override bool Delete(Position position)
    {
        string sql = "delete from `position` where `id` = " + position.Id;
        try
        {
            using (var command = new MySqlCommand(sql, connection))
            {
                command.ExecuteNonQuery();
            }
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
            return false;
        }
        return true;
    }

    public int GetRowsCount()
    {
        string sql = "select count(id) from `position`";
        try
        {
            using var command = new MySqlCommand(sql, connection);
            return Convert.ToInt32(command.ExecuteScalar());
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
            return 0;
        }
    }
    
    public void Dispose()
    {
        CloseConnection();
        base.Dispose();
    }
}