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192 lines
5.7 KiB
192 lines
5.7 KiB
package db;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.sql.*;
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import java.util.LinkedList;
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import java.util.List;
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import javax.imageio.ImageIO;
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import javax.swing.ImageIcon;
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import ksiazka.kucharska.CB_Model;
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public class Cookbook {
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public static final String DRIVER = "org.sqlite.JDBC";
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public static final String DB_URL = "jdbc:sqlite:cookbook.db";
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private Connection conn;
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private Statement stat;
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public Cookbook() {
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try {
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Class.forName(Cookbook.DRIVER);
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} catch (ClassNotFoundException e) {
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System.err.println("Brak sterownika JDBC");
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e.printStackTrace();
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}
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try {
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conn = DriverManager.getConnection(DB_URL);
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stat = conn.createStatement();
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} catch (SQLException e) {
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System.err.println("Problem z otwarciem polaczenia");
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e.printStackTrace();
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}
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createTables();
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}
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public boolean createTables() {
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String createRecipes = "CREATE TABLE IF NOT EXISTS recipes (id INTEGER PRIMARY KEY AUTOINCREMENT, name varchar, ingredients varchar, description varchar, tags varchar, img blob)";
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try {
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stat.execute(createRecipes);
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} catch (SQLException e) {
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System.err.println("Blad przy tworzeniu tabeli");
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e.printStackTrace();
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return false;
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}
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return true;
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}
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/* funkcja przestarzała (deprecated) - do usunięcia w bliskiej przyszłości - PioDer */
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public boolean insertRecipe(String name, String ingredients, String description, String tags, byte[] imgArr) {
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try {
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PreparedStatement prepStmt = conn.prepareStatement(
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"INSERT INTO recipes VALUES (NULL, ?, ?, ?, ?, ?);");
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prepStmt.setString(1, name);
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prepStmt.setString(2, ingredients);
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prepStmt.setString(3, description);
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prepStmt.setString(4, tags);
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prepStmt.setBytes(5, imgArr);
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prepStmt.execute();
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}
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catch (SQLException e) {
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System.err.println("Blad przy wstawianiu przepisu");
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e.printStackTrace();
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return false;
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}
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return true;
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}
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public boolean insertRecipe(CB_Model ob) {
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try {
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PreparedStatement prepStmt = conn.prepareStatement(
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"INSERT INTO recipes VALUES (NULL, ?, ?, ?, ?, ?);");
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prepStmt.setString(1, ob.getName());
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prepStmt.setString(2, ob.getIngredients());
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prepStmt.setString(3, ob.getDescription());
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prepStmt.setString(4, ob.getTags());
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prepStmt.setBytes(5, ob.getImageArr());
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prepStmt.execute();
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}
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catch (SQLException e) {
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System.err.println("Blad przy wstawianiu przepisu");
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e.printStackTrace();
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return false;
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}
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return true;
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}
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public CB_Model selectRecipe(String name) {
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CB_Model selectedRecipe;
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try {
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PreparedStatement query = conn.prepareStatement("SELECT * FROM recipes WHERE name=?");
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query.setString(1, name);
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ResultSet result = query.executeQuery();
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int id;
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String ingredients, description, tags;
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ImageIcon pict;
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id = result.getInt("id");
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ingredients = result.getString("ingredients");
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description = result.getString("description");
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tags = result.getString("tags");
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pict = new ImageIcon(result.getBytes("img"));
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selectedRecipe = new CB_Model(id, name, ingredients, description, tags, pict);
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} catch (SQLException e) {
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e.printStackTrace();
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return null;
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}
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return selectedRecipe;
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}
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public boolean deleteRecipe(String name){
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try {
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PreparedStatement query = conn.prepareStatement("DELETE FROM recipes WHERE name=?");
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query.setString(1, name);
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query.execute();
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} catch (SQLException e) {
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e.printStackTrace();
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return false;
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}
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return true;
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}
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public List<String> obtainNames(){
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List<String> names = new LinkedList<String>();
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try {
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ResultSet result = stat.executeQuery("SELECT name FROM recipes");
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String name;
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while(result.next()){
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name = result.getString("name");
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names.add(name);
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}
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} catch (SQLException e) {
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e.printStackTrace();
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return null;
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}
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return names;
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}
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public List<String> obtainSearchedNames(String n, String t){
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List<String> names = new LinkedList<String>();
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try {
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String whereClause = "";
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if (n != "")
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whereClause += "name LIKE ?";
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if (t != "")
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{
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if (n != "")
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whereClause += " OR ";
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whereClause += "tags LIKE ?";
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}
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PreparedStatement query = conn.prepareStatement("SELECT name FROM recipes WHERE " + whereClause);
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if (n != "")
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query.setString(1, "%"+n+"%");
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if (t != "")
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query.setString(((n!="")? 2 : 1), "%"+t+"%");
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ResultSet result = query.executeQuery();
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String name;
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while(result.next()){
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name = result.getString("name");
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names.add(name);
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}
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} catch (SQLException e) {
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e.printStackTrace();
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return null;
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}
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return names;
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}
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public void closeConnection() {
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try {
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conn.close();
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} catch (SQLException e) {
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System.err.println("Problem z zamknieciem polaczenia");
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e.printStackTrace();
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}
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}
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}
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