476 lines
19 KiB
C#
476 lines
19 KiB
C#
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using Npgsql;
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using System.Data;
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namespace database
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{
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public class Implementation : Abstractions
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{
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private NpgsqlConnection GetConnection()
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{
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return new NpgsqlConnection("Host=localhost;Username=postgres;Password=1234;Database=Computerfirmbd;");
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}
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// CDUD операции для каждой сущности
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// Device
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public override void AddDevice(Device device)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("INSERT INTO device (typedevice, model, serialnumber, clientid, orderid) VALUES (@TypeDevice, @Model, @SerialNumber, @ClientId, @OrderId)", conn);
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cmd.Parameters.AddWithValue("@TypeDevice", device.TypeDevice);
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cmd.Parameters.AddWithValue("@Model", device.Model);
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cmd.Parameters.AddWithValue("@SerialNumber", device.SerialNumber);
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cmd.Parameters.AddWithValue("@ClientId", device.ClientId);
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cmd.Parameters.AddWithValue("@OrderId", device.OrderId);
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cmd.ExecuteNonQuery();
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}
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public override List<Device> GetDevices()
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{
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var devices = new List<Device>();
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("SELECT * FROM device", conn);
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using var reader = cmd.ExecuteReader();
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while (reader.Read())
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{
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devices.Add(new Device
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{
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Id = reader.GetInt32(0),
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TypeDevice = reader.GetString(1),
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Model = reader.GetString(2),
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SerialNumber = reader.GetString(3),
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ClientId = reader.GetInt32(4),
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OrderId = reader.GetInt32(5),
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});
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}
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return devices;
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}
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public override Device GetDeviceById(int id)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand($"SELECT * FROM device WHERE id = {id}", conn);
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using var reader = cmd.ExecuteReader();
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if (reader.Read())
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{
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return new Device
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{
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Id = reader.GetInt32(0),
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TypeDevice = reader.GetString(1),
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Model = reader.GetString(2),
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SerialNumber = reader.GetString(3),
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ClientId = reader.GetInt32(4),
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OrderId = reader.GetInt32(5),
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};
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}
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return null;
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}
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public override void UpdateDevice(Device device)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("UPDATE device SET typedevice = @TypeDevice, model = @Model, serialnumber = @SerialNumber, clientid = @ClientId, orderid = @OrderId WHERE id = @Id", conn);
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cmd.Parameters.AddWithValue("@TypeDevice", device.TypeDevice);
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cmd.Parameters.AddWithValue("@Model", device.Model);
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cmd.Parameters.AddWithValue("@SerialNumber", device.SerialNumber);
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cmd.Parameters.AddWithValue("@ClientId", device.ClientId);
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cmd.Parameters.AddWithValue("@OrderId", device.OrderId);
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cmd.Parameters.AddWithValue("@Id", device.Id);
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cmd.ExecuteNonQuery();
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}
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public override void DeleteDevice(int id)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand($"DELETE FROM device WHERE id = {id}", conn);
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cmd.ExecuteNonQuery();
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}
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//Employee
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public override void AddEmployee(Employee employee)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("INSERT INTO employee (name, surname, position, timework, seniority, costperhour) VALUES (@Name, @Surname, @Position, @Timework, @Seniority, @CostPerHour)");
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cmd.Parameters.AddWithValue("@Name", employee.Name);
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cmd.Parameters.AddWithValue("@Surname", employee.Surname);
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cmd.Parameters.AddWithValue("@Position", employee.Position);
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cmd.Parameters.AddWithValue("@Timework", employee.Timework);
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cmd.Parameters.AddWithValue("@Seniority", employee.Seniority);
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cmd.Parameters.AddWithValue("@CostPerHour", employee.CostPerHour);
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cmd.Connection = conn;
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cmd.ExecuteNonQuery();
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}
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public override List<Employee> GetEmployees()
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{
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var employee = new List<Employee>();
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("SELECT * FROM employee", conn);
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using var reader = cmd.ExecuteReader();
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while (reader.Read())
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{
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employee.Add(new Employee()
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{
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Id = reader.GetInt32(0),
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Name = reader.GetString(1),
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Surname = reader.GetString(2),
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Position = reader.GetString(3),
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Timework = reader.GetString(4),
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Seniority = reader.GetString(5),
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CostPerHour = reader.GetDecimal(6)
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});
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}
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return employee;
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}
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public override Employee GetEmployeeById(int id)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand($"SELECT * FROM employee WHERE id = {id}", conn);
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using var reader = cmd.ExecuteReader();
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if (reader.Read())
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{
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return new Employee
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{
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Id = reader.GetInt32(0),
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Name = reader.GetString(1),
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Surname = reader.GetString(2),
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Position = reader.GetString(3),
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Timework = reader.GetString(4),
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Seniority = reader.GetString(5),
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CostPerHour = reader.GetDecimal(6)
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};
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}
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return null;
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}
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public override void UpdateEmployee(Employee employee)
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{
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using var conn = GetConnection();
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conn.Open(); // добавил открытие соединения
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using var cmd = new NpgsqlCommand("UPDATE employee SET name = @Name, surname = @Surname, position = @Position, timework = @Timework, seniority = @Seniority, costperhour = @CostPerHour WHERE id = @Id", conn);
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cmd.Parameters.AddWithValue("@Name", employee.Name);
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cmd.Parameters.AddWithValue("@Surname", employee.Surname);
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cmd.Parameters.AddWithValue("@Position", employee.Position);
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cmd.Parameters.AddWithValue("@Timework", employee.Timework);
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cmd.Parameters.AddWithValue("@Seniority", employee.Seniority);
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cmd.Parameters.AddWithValue("@CostPerHour", employee.CostPerHour);
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cmd.Parameters.AddWithValue("@Id", employee.Id);
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cmd.ExecuteNonQuery();
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}
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public override void DeleteEmployee(int id)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand($"DELETE FROM employee WHERE id = {id}", conn);
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cmd.ExecuteNonQuery();
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}
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// Client
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public override void AddClient(Client client)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("INSERT INTO client (name, surname, email, phone) VALUES (@Name, @Surname, @Email, @Phone)", conn);
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cmd.Parameters.AddWithValue("@Name", client.Name);
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cmd.Parameters.AddWithValue("@Surname", client.Surname);
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cmd.Parameters.AddWithValue("@Email", client.Email);
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cmd.Parameters.AddWithValue("@Phone", client.Phone);
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cmd.ExecuteNonQuery();
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}
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public override List<Client> GetClients()
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{
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var client = new List<Client>();
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("SELECT * FROM client", conn);
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using var reader = cmd.ExecuteReader();
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while (reader.Read())
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{
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client.Add(new Client
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{
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Id = reader.GetInt32(0),
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Name = reader.GetString(1),
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Surname = reader.GetString(2),
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Email = reader.GetString(3),
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Phone = reader.GetString(4),
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});
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}
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return client;
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}
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public override Client GetClientById(int id)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand($"SELECT * FROM client WHERE id = {id}", conn);
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using var reader = cmd.ExecuteReader();
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if (reader.Read())
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{
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return new Client
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{
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Id = reader.GetInt32(0),
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Name = reader.GetString(1),
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Surname = reader.GetString(2),
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Email = reader.GetString(3),
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Phone = reader.GetString(4)
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};
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}
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return null;
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}
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public override void UpdateClient(Client client)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand($"UPDATE client SET name = '{client.Name}', surname = '{client.Surname}', email = '{client.Email}', phone = '{client.Phone}' WHERE id = {client.Id}", conn);
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cmd.ExecuteNonQuery();
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}
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public override void DeleteClient(int id)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand($"DELETE FROM client WHERE id = {id}", conn);
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cmd.ExecuteNonQuery();
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}
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// Order
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public override void AddOrder(Order order)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("INSERT INTO orders (datestart, dateend, endcost, clientid, componentid, serviceid) VALUES (@DateStart, @DateEnd, @EndCost, @ClientId, @ComponentId, @ServiceId)", conn);
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cmd.Parameters.AddWithValue("@DateStart", order.DateStart);
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cmd.Parameters.AddWithValue("@DateEnd", order.DateEnd);
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cmd.Parameters.AddWithValue("@EndCost", order.EndCost);
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cmd.Parameters.AddWithValue("@ClientId", order.ClientId);
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cmd.Parameters.AddWithValue("@ComponentId", order.ComponentId);
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cmd.Parameters.AddWithValue("@ServiceId", order.ServiceId);
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cmd.ExecuteNonQuery();
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}
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public override List<Order> GetOrders()
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{
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var orders = new List<Order>();
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("SELECT * FROM orders", conn);
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using var reader = cmd.ExecuteReader();
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while (reader.Read())
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{
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orders.Add(new Order
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{
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Id = reader.GetInt32(0),
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DateStart = reader.GetString(1),
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DateEnd = reader.GetString(2),
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EndCost = reader.GetDecimal(3),
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ClientId = reader.GetInt32(4),
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ComponentId = reader.GetInt32(5),
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ServiceId = reader.GetInt32(6),
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});
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}
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return orders;
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}
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public override Order GetOrderById(int id)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand($"SELECT * FROM orders WHERE id = {id}", conn);
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using var reader = cmd.ExecuteReader();
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if (reader.Read())
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{
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return new Order
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{
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Id = reader.GetInt32(0),
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DateStart = reader.GetString(1),
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DateEnd = reader.GetString(2),
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EndCost = reader.GetDecimal(3),
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ClientId = reader.GetInt32(4),
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ComponentId = reader.GetInt32(5),
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ServiceId = reader.GetInt32(6),
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};
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}
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return null;
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}
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public override void UpdateOrder(Order order)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("UPDATE orders SET datestart = @DateStart, dateend = @DateEnd, endcost = @EndCost, clientid = @ClientId, componentid = @ComponentId, serviceid = @ServiceId WHERE id = @Id", conn);
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cmd.Parameters.AddWithValue("@DateStart", order.DateStart);
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cmd.Parameters.AddWithValue("@DateEnd", order.DateEnd);
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cmd.Parameters.AddWithValue("@EndCost", order.EndCost);
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cmd.Parameters.AddWithValue("@ClientId", order.ClientId);
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cmd.Parameters.AddWithValue("@ComponentId", order.ComponentId);
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cmd.Parameters.AddWithValue("@ServiceId", order.ServiceId);
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cmd.Parameters.AddWithValue("@Id", order.Id);
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cmd.ExecuteNonQuery();
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}
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public override void DeleteOrder(int id)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand($"DELETE FROM orders WHERE id = {id}", conn);
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cmd.ExecuteNonQuery();
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}
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// Service
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public override void AddService(Service service)
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{
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("INSERT INTO service (title, cost, employeesid) VALUES (@Title, @Cost, @EmployeesId)", conn);
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cmd.Parameters.AddWithValue("@Title", service.Title);
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cmd.Parameters.AddWithValue("@Cost", service.Cost);
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cmd.Parameters.AddWithValue("@EmployeesId", service.EmployeesId);
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cmd.ExecuteNonQuery();
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}
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public override List<Service> GetServices()
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{
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var services = new List<Service>();
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using var conn = GetConnection();
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conn.Open();
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using var cmd = new NpgsqlCommand("SELECT * FROM service", conn);
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using var reader = cmd.ExecuteReader();
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|
|
while (reader.Read())
|
|||
|
|
{
|
|||
|
|
services.Add(new Service
|
|||
|
|
{
|
|||
|
|
Id = reader.GetInt32(0),
|
|||
|
|
Title = reader.GetString(1),
|
|||
|
|
Cost = reader.GetDecimal(2),
|
|||
|
|
EmployeesId = reader.GetInt32(3),
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
return services;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public override Service GetServiceById(int id)
|
|||
|
|
{
|
|||
|
|
using var conn = GetConnection();
|
|||
|
|
conn.Open();
|
|||
|
|
using var cmd = new NpgsqlCommand($"SELECT * FROM service WHERE id = {id}", conn);
|
|||
|
|
using var reader = cmd.ExecuteReader();
|
|||
|
|
if (reader.Read())
|
|||
|
|
{
|
|||
|
|
return new Service
|
|||
|
|
{
|
|||
|
|
Id = reader.GetInt32(0),
|
|||
|
|
Title = reader.GetString(1),
|
|||
|
|
Cost = reader.GetDecimal(2),
|
|||
|
|
EmployeesId = reader.GetInt32(3),
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
public override void UpdateService(Service service)
|
|||
|
|
{
|
|||
|
|
using var conn = GetConnection();
|
|||
|
|
conn.Open();
|
|||
|
|
using var cmd = new NpgsqlCommand("UPDATE service SET title = @Title, cost = @Cost, employeesid = @EmployeesId WHERE id = @Id", conn);
|
|||
|
|
cmd.Parameters.AddWithValue("@Title", service.Title);
|
|||
|
|
cmd.Parameters.AddWithValue("@Cost", service.Cost);
|
|||
|
|
cmd.Parameters.AddWithValue("@EmployeesId", service.EmployeesId);
|
|||
|
|
cmd.Parameters.AddWithValue("@Id", service.Id);
|
|||
|
|
cmd.ExecuteNonQuery();
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
public override void DeleteService(int id)
|
|||
|
|
{
|
|||
|
|
using var conn = GetConnection();
|
|||
|
|
conn.Open();
|
|||
|
|
using var cmd = new NpgsqlCommand($"DELETE FROM service WHERE id = {id}", conn);
|
|||
|
|
cmd.ExecuteNonQuery();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Component
|
|||
|
|
public override void AddComponent(Component component)
|
|||
|
|
{
|
|||
|
|
using var conn = GetConnection();
|
|||
|
|
conn.Open();
|
|||
|
|
using var cmd = new NpgsqlCommand("INSERT INTO component (title, countsklad, manufacturer, price) VALUES (@Title, @CountSklad, @Manufacturer, @Price)", conn);
|
|||
|
|
cmd.Parameters.AddWithValue("@Title", component.Title);
|
|||
|
|
cmd.Parameters.AddWithValue("@CountSklad", component.CountSklad);
|
|||
|
|
cmd.Parameters.AddWithValue("@Manufacturer", component.Manufacturer);
|
|||
|
|
cmd.Parameters.AddWithValue("@Price", component.Price);
|
|||
|
|
cmd.ExecuteNonQuery();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public override List<Component> GetComponents()
|
|||
|
|
{
|
|||
|
|
var components = new List<Component>();
|
|||
|
|
using var conn = GetConnection();
|
|||
|
|
conn.Open();
|
|||
|
|
using var cmd = new NpgsqlCommand("SELECT * FROM component", conn);
|
|||
|
|
using var reader = cmd.ExecuteReader();
|
|||
|
|
while (reader.Read())
|
|||
|
|
{
|
|||
|
|
components.Add(new Component
|
|||
|
|
{
|
|||
|
|
Id = reader.GetInt32(0),
|
|||
|
|
Title = reader.GetString(1),
|
|||
|
|
CountSklad = reader.GetString(2),
|
|||
|
|
Manufacturer = reader.GetString(3),
|
|||
|
|
Price = reader.GetDouble(4)
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
return components;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public override Component GetComponentById(int id)
|
|||
|
|
{
|
|||
|
|
using var conn = GetConnection();
|
|||
|
|
conn.Open();
|
|||
|
|
using var cmd = new NpgsqlCommand($"SELECT * FROM component WHERE id = {id}", conn);
|
|||
|
|
using var reader = cmd.ExecuteReader();
|
|||
|
|
if (reader.Read())
|
|||
|
|
{
|
|||
|
|
return new Component
|
|||
|
|
{
|
|||
|
|
Id = reader.GetInt32(0),
|
|||
|
|
Title = reader.GetString(1),
|
|||
|
|
CountSklad = reader.GetString(2),
|
|||
|
|
Manufacturer = reader.GetString(3),
|
|||
|
|
Price = reader.GetDouble(4)
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public override void UpdateComponent(Component component)
|
|||
|
|
{
|
|||
|
|
using var conn = GetConnection();
|
|||
|
|
conn.Open();
|
|||
|
|
using var cmd = new NpgsqlCommand($"UPDATE component SET title = '{component.Title}', countsklad = '{component.CountSklad}', manufacturer = '{component.Manufacturer}', price = '{component.Price}' WHERE id = {component.Id}", conn);
|
|||
|
|
cmd.ExecuteNonQuery();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public override void DeleteComponent(int id)
|
|||
|
|
{
|
|||
|
|
using var conn = GetConnection();
|
|||
|
|
conn.Open();
|
|||
|
|
using var cmd = new NpgsqlCommand($"DELETE FROM component WHERE id = {id}", conn);
|
|||
|
|
cmd.ExecuteNonQuery();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|