421 lines
16 KiB
C#
421 lines
16 KiB
C#
using MySql.Data.MySqlClient;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace NeshinaPolina07_11
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{
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public partial class _2Menu : Form
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{
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private const string MODE_PRODUCTS = "PRODUCTS";
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private const string MODE_ORDERS = "ORDERS";
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private string currentMode = MODE_PRODUCTS;
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public _2Menu()
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{
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InitializeComponent();
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InitializeSortComboBox();
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LoadSuppliers();
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this.Text = "Менеджер";
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}
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private void InitializeSortComboBox()
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{
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cmbSort.Items.Clear();
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cmbSort.Items.Add("Без сортировки");
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cmbSort.Items.Add("По возрастанию (остаток)");
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cmbSort.Items.Add("По убыванию (остаток)");
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cmbSort.SelectedIndex = 0;
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}
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private void LoadSuppliers()
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{
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cmbSupplier.Items.Clear();
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cmbSupplier.Items.Add(new SupplierItem { Name = "Все поставщики", Id = -1 });
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try
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{
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var db = DB.GetInstance();
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var connection = db.GetConnection();
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string query = "SELECT supplier_id, supplier_name FROM suppliers ORDER BY supplier_name";
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using (MySqlCommand cmd = new MySqlCommand(query, connection))
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using (MySqlDataReader reader = cmd.ExecuteReader())
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{
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while (reader.Read())
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{
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int id = Convert.ToInt32(reader["supplier_id"]);
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string name = reader["supplier_name"].ToString();
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cmbSupplier.Items.Add(new SupplierItem { Id = id, Name = name });
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}
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}
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}
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catch (Exception ex)
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{
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MessageBox.Show("Ошибка загрузки поставщиков: " + ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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cmbSupplier.DisplayMember = "Name";
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cmbSupplier.ValueMember = "Id";
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cmbSupplier.SelectedIndex = 0;
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}
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private class SupplierItem
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{
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public int Id { get; set; }
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public string Name { get; set; }
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public override string ToString() => Name;
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}
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private void SwitchMode(string mode)
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{
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currentMode = mode;
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if (mode == MODE_PRODUCTS)
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{
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lblSort.Visible = true;
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cmbSort.Visible = true;
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lblSupplier.Visible = true;
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cmbSupplier.Visible = true;
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LoadProductsData(txtSearch.Text, cmbSort.SelectedItem?.ToString() ?? "Без сортировки", GetSelectedSupplierId());
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}
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else if (mode == MODE_ORDERS)
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{
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lblSort.Visible = false;
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cmbSort.Visible = false;
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lblSupplier.Visible = false;
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cmbSupplier.Visible = false;
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LoadOrdersData(txtSearch.Text);
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}
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}
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private void LoadProductsData(string searchQuery = "", string sortOption = "Без сортировки", int? supplierId = null)
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{
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try
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{
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var db = DB.GetInstance();
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var connection = db.GetConnection();
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string query = @"
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SELECT
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p.product_id,
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p.product_article,
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p.product_name,
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p.unit,
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p.price,
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p.discount,
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p.quantity_in_stock,
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p.description,
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p.photo,
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c.category_name AS category,
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m.manufacturer_name AS manufacturer,
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s.supplier_name AS supplier
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FROM products p
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LEFT JOIN categories c ON p.category_id = c.category_id
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LEFT JOIN manufacturers m ON p.manufacturer_id = m.manufacturer_id
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LEFT JOIN suppliers s ON p.supplier_id = s.supplier_id";
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var conditions = new List<string>();
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var parameters = new List<MySqlParameter>();
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if (!string.IsNullOrWhiteSpace(searchQuery))
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{
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string searchPattern = "%" + searchQuery.Trim().ToLower() + "%";
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conditions.Add(@"
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LOWER(COALESCE(p.product_article, '')) LIKE @search OR
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LOWER(COALESCE(p.product_name, '')) LIKE @search OR
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LOWER(COALESCE(p.unit, '')) LIKE @search OR
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LOWER(COALESCE(CAST(p.price AS CHAR), '')) LIKE @search OR
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LOWER(COALESCE(CAST(p.discount AS CHAR), '')) LIKE @search OR
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LOWER(COALESCE(CAST(p.quantity_in_stock AS CHAR), '')) LIKE @search OR
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LOWER(COALESCE(p.description, '')) LIKE @search OR
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LOWER(COALESCE(p.photo, '')) LIKE @search OR
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LOWER(COALESCE(c.category_name, '')) LIKE @search OR
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LOWER(COALESCE(m.manufacturer_name, '')) LIKE @search OR
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LOWER(COALESCE(s.supplier_name, '')) LIKE @search
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");
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parameters.Add(new MySqlParameter("@search", searchPattern));
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}
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if (supplierId.HasValue && supplierId.Value != -1)
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{
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conditions.Add("p.supplier_id = @supplierId");
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parameters.Add(new MySqlParameter("@supplierId", supplierId.Value));
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}
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if (conditions.Count > 0)
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{
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query += " WHERE " + string.Join(" AND ", conditions);
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}
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switch (sortOption)
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{
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case "По возрастанию (остаток)":
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query += " ORDER BY p.quantity_in_stock ASC";
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break;
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case "По убыванию (остаток)":
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query += " ORDER BY p.quantity_in_stock DESC";
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break;
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}
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using (MySqlCommand cmd = new MySqlCommand(query, connection))
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{
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cmd.Parameters.AddRange(parameters.ToArray());
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using (MySqlDataAdapter adapter = new MySqlDataAdapter(cmd))
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{
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DataTable dt = new DataTable();
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adapter.Fill(dt);
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dgvProducts.DataSource = dt;
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}
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}
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dgvProducts.AutoResizeColumns();
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}
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catch (Exception ex)
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{
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MessageBox.Show("Ошибка загрузки данных о товарах: " + ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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private void LoadOrdersData(string searchQuery = "")
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{
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try
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{
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var db = DB.GetInstance();
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var connection = db.GetConnection();
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string query = @"
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SELECT
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o.order_id,
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o.order_date,
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o.delivery_date,
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pp.address AS pickup_point, -- Вместо pickup_point_id
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u.full_name AS user_name, -- Вместо user_id
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o.receive_code,
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os.status_name AS status -- Вместо status_id
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FROM orders o
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LEFT JOIN pickup_points pp ON o.pickup_point_id = pp.point_id
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LEFT JOIN users u ON o.user_id = u.user_id
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LEFT JOIN order_statuses os ON o.status_id = os.status_id";
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var conditions = new List<string>();
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var parameters = new List<MySqlParameter>();
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if (!string.IsNullOrWhiteSpace(searchQuery))
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{
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string searchPattern = "%" + searchQuery.Trim().ToLower() + "%";
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conditions.Add(@"
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LOWER(COALESCE(CAST(o.order_id AS CHAR), '')) LIKE @search OR
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LOWER(COALESCE(CAST(o.order_date AS CHAR), '')) LIKE @search OR
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LOWER(COALESCE(CAST(o.delivery_date AS CHAR), '')) LIKE @search OR
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LOWER(COALESCE(pp.address, '')) LIKE @search OR -- Поиск по названию пункта выдачи
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LOWER(COALESCE(u.full_name, '')) LIKE @search OR -- Поиск по имени пользователя
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LOWER(COALESCE(o.receive_code, '')) LIKE @search OR
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LOWER(COALESCE(os.status_name, '')) LIKE @search -- Поиск по названию статуса
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");
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parameters.Add(new MySqlParameter("@search", searchPattern));
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}
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if (conditions.Count > 0)
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{
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query += " WHERE " + string.Join(" AND ", conditions);
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}
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using (MySqlCommand cmd = new MySqlCommand(query, connection))
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{
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cmd.Parameters.AddRange(parameters.ToArray());
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using (MySqlDataAdapter adapter = new MySqlDataAdapter(cmd))
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{
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DataTable dt = new DataTable();
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adapter.Fill(dt);
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dgvProducts.DataSource = dt;
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}
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}
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dgvProducts.AutoResizeColumns();
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}
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catch (Exception ex)
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{
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MessageBox.Show("Ошибка загрузки данных о заказах: " + ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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private void PerformSearch()
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{
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if (currentMode == MODE_PRODUCTS)
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{
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LoadProductsData(txtSearch.Text, cmbSort.SelectedItem?.ToString() ?? "Без сортировки", GetSelectedSupplierId());
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}
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else if (currentMode == MODE_ORDERS)
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{
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LoadOrdersData(txtSearch.Text);
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}
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}
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private void LoadData(string searchQuery = "", string sortOption = "Без сортировки", int? supplierId = null)
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{
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try
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{
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var db = DB.GetInstance();
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var connection = db.GetConnection();
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string query = @"
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SELECT
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p.product_id,
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p.product_article,
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p.product_name,
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p.unit,
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p.price,
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p.discount,
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p.quantity_in_stock,
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p.description,
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p.photo,
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c.category_name AS category,
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m.manufacturer_name AS manufacturer,
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s.supplier_name AS supplier
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FROM products p
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LEFT JOIN categories c ON p.category_id = c.category_id
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LEFT JOIN manufacturers m ON p.manufacturer_id = m.manufacturer_id
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LEFT JOIN suppliers s ON p.supplier_id = s.supplier_id";
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var conditions = new List<string>();
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var parameters = new List<MySqlParameter>();
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if (!string.IsNullOrWhiteSpace(searchQuery))
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{
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string searchPattern = "%" + searchQuery.Trim().ToLower() + "%";
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conditions.Add(@"
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LOWER(COALESCE(p.product_article, '')) LIKE @search OR
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LOWER(COALESCE(p.product_name, '')) LIKE @search OR
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LOWER(COALESCE(p.unit, '')) LIKE @search OR
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LOWER(COALESCE(CAST(p.price AS CHAR), '')) LIKE @search OR
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LOWER(COALESCE(CAST(p.discount AS CHAR), '')) LIKE @search OR
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LOWER(COALESCE(CAST(p.quantity_in_stock AS CHAR), '')) LIKE @search OR
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LOWER(COALESCE(p.description, '')) LIKE @search OR
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LOWER(COALESCE(p.photo, '')) LIKE @search OR
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LOWER(COALESCE(c.category_name, '')) LIKE @search OR
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LOWER(COALESCE(m.manufacturer_name, '')) LIKE @search OR
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LOWER(COALESCE(s.supplier_name, '')) LIKE @search
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");
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parameters.Add(new MySqlParameter("@search", searchPattern));
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}
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if (supplierId.HasValue && supplierId.Value != -1)
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{
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conditions.Add("p.supplier_id = @supplierId");
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parameters.Add(new MySqlParameter("@supplierId", supplierId.Value));
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}
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if (conditions.Count > 0)
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{
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query += " WHERE " + string.Join(" AND ", conditions);
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}
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switch (sortOption)
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{
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case "По возрастанию (остаток)":
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query += " ORDER BY p.quantity_in_stock ASC";
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break;
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case "По убыванию (остаток)":
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query += " ORDER BY p.quantity_in_stock DESC";
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break;
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}
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using (MySqlCommand cmd = new MySqlCommand(query, connection))
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{
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cmd.Parameters.AddRange(parameters.ToArray());
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using (MySqlDataAdapter adapter = new MySqlDataAdapter(cmd))
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{
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DataTable dt = new DataTable();
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adapter.Fill(dt);
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dgvProducts.DataSource = dt;
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}
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}
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dgvProducts.AutoResizeColumns();
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}
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catch (Exception ex)
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{
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MessageBox.Show("Ошибка загрузки данных: " + ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
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{
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}
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private void _2Menu_Load(object sender, EventArgs e)
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{
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}
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private void button1_Click(object sender, EventArgs e)
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{
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}
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private void button2_Click(object sender, EventArgs e)
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{
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MainForm form = new MainForm();
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form.Show();
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this.Hide();
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}
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private void button3_Click(object sender, EventArgs e)
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{
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}
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private void textBox1_TextChanged(object sender, EventArgs e)
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{
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PerformSearch();
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}
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private void cmbSort_SelectedIndexChanged(object sender, EventArgs e)
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{
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if (currentMode == MODE_PRODUCTS)
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{
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LoadProductsData(txtSearch.Text, cmbSort.SelectedItem?.ToString() ?? "Без сортировки", GetSelectedSupplierId());
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}
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}
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private void cmbSupplier_SelectedIndexChanged(object sender, EventArgs e)
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{
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if (currentMode == MODE_PRODUCTS)
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{
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int? supplierId = GetSelectedSupplierId();
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string sort = cmbSort.SelectedItem?.ToString() ?? "Без сортировки";
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LoadProductsData(txtSearch.Text, sort, supplierId);
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}
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}
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private int? GetSelectedSupplierId()
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{
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if (cmbSupplier.SelectedItem is SupplierItem item)
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{
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return item.Id == -1 ? (int?)null : item.Id;
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}
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return null;
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}
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private void _2Menu_FormClosing(object sender, FormClosingEventArgs e)
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{
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e.Cancel = true;
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this.Hide();
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MainForm form1 = new MainForm();
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form1.Show();
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}
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private void товарыToolStripMenuItem_Click(object sender, EventArgs e)
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{
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SwitchMode(MODE_ORDERS);
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}
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private void заказыToolStripMenuItem_Click(object sender, EventArgs e)
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{
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SwitchMode(MODE_PRODUCTS);
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}
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}
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}
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