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TaskManager
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76
TaskManager
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// Funkcyjny
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import java.util.*;
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import java.util.stream.Collectors;
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class Task {
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private int id;
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private String description;
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public Task(int id, String description) {
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this.id = id;
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this.description = description;
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}
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public int getId() {
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return id;
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}
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public String getDescription() {
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return description;
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}
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@Override
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public String toString() {
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return "Task{" +
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"id=" + id +
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", description='" + description + '\'' +
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'}';
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}
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}
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class TaskManager {
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private List<Task> tasks;
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private int nextId;
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public TaskManager() {
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tasks = new ArrayList<>();
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nextId = 1;
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}
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public Task addTask(String description) {
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Task newTask = new Task(nextId++, description);
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tasks.add(newTask);
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return newTask;
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}
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public boolean deleteTask(int id) {
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return tasks.removeIf(task -> task.getId() == id);
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}
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public List<Task> getTasks() {
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return new ArrayList<>(tasks);
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}
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public Optional<Task> getTaskById(int id) {
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return tasks.stream().filter(task -> task.getId() == id).findFirst();
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}
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public void printTasks() {
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tasks.forEach(System.out::println);
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}
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public static void main(String[] args) {
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TaskManager taskManager = new TaskManager();
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taskManager.addTask("Finish homework");
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taskManager.addTask("Read book");
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System.out.println("All tasks:");
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taskManager.printTasks();
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taskManager.deleteTask(1);
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System.out.println("Tasks after deletion:");
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taskManager.printTasks();
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}
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}
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83
app.js
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83
app.js
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// Nowe zadanie
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async function addTask() {
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const taskDescription = document.getElementById('new-task').value;
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if (!taskDescription) {
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alert('Opis zadania nie może być pusty!');
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return;
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}
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try {
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const response = await fetch('http://localhost:8000/add_task', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({ task_description: taskDescription })
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});
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if (!response.ok) {
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throw new Error('Odpowiedź sieci nie była OK');
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}
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const result = await response.json();
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console.log('Zadanie dodane:', result);
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document.getElementById('new-task').value = '';
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loadTasks();
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} catch (error) {
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console.error('Błąd podczas dodawania zadania:', error);
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}
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}
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// Ładowanie zadania
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async function loadTasks() {
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try {
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const response = await fetch('http://localhost:8000/get_tasks');
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if (!response.ok) {
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throw new Error('Odpowiedź sieci nie była OK');
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}
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const tasks = await response.json();
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const taskList = document.getElementById('task-list');
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taskList.innerHTML = '';
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tasks.forEach(task => {
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const listItem = document.createElement('li');
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listItem.textContent = task.task_description;
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// Przycisk do usuwania zadania
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//PARADYGMAT STEROWANIA ZDARZENIAMI
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const deleteButton = document.createElement('button');
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deleteButton.textContent = 'Usuń';
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deleteButton.onclick = () => deleteTask(task.id);
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listItem.appendChild(deleteButton);
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taskList.appendChild(listItem);
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});
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} catch (error) {
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console.error('Błąd podczas ładowania zadań:', error);
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}
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}
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// Usuwanie zdarzenia
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async function deleteTask(taskId) {
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try {
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const response = await fetch(`http://localhost:8000/delete_task/${taskId}`, {
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method: 'DELETE'
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});
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if (!response.ok) {
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throw new Error('Odpowiedź sieci nie była OK');
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}
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const result = await response.json();
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console.log('Zadanie usunięte:', result);
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loadTasks();
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} catch (error) {
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console.error('Błąd podczas usuwania zadania:', error);
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}
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}
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document.addEventListener('DOMContentLoaded', () => {
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loadTasks();
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});
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20
index.html
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20
index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>To-Do App</title>
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<link rel="stylesheet" href="styles.css">
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</head>
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<body>
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<div class="container">
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<h1>To-Do List</h1>
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<div class="input-container">
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<input type="text" id="new-task" placeholder="Enter new task">
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<button onclick="addTask()">Add Task</button>
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</div>
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<ul id="task-list"></ul>
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</div>
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<script src="app.js"></script>
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</body>
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</html>
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97
serwer.py
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97
serwer.py
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# Imperatywne i Deklaratywne
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from wsgiref.simple_server import make_server
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import json
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import pyodbc
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response_headers = [
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('Content-Type', 'application/json'),
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('Access-Control-Allow-Origin', '*'),
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('Access-Control-Allow-Methods', 'POST, GET, OPTIONS, DELETE'),
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('Access-Control-Allow-Headers', 'Content-Type')
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]
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conn = pyodbc.connect(
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'DRIVER={ODBC Driver 17 for SQL Server};'
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'SERVER=mssql-2017.labs.wmi.amu.edu.pl;'
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'DATABASE=dbad_s490122;'
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'UID=dbad_s490122;'
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'PWD=c1Dp8y8iWJ'
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)
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cursor = conn.cursor()
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def application(environ, start_response):
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path = environ.get('PATH_INFO', '') # Pobranie ścieżki
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method = environ.get('REQUEST_METHOD', '') # Pobranie HTTP
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response_headers = [
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('Content-Type', 'application/json'),
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('Access-Control-Allow-Origin', '*'),
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('Access-Control-Allow-Methods', 'POST, GET, OPTIONS, DELETE'),
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('Access-Control-Allow-Headers', 'Content-Type')
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]
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if method == 'OPTIONS':
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start_response('200 OK', response_headers)
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return [b'']
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# Dodawanie zadania
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if path == '/add_task' and method == 'POST':
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try:
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# Parsowanie
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request_body_size = int(environ.get('CONTENT_LENGTH', 0))
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request_body = environ['wsgi.input'].read(request_body_size)
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data = json.loads(request_body)
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task_description = data.get('task_description', '')
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# Dodanie
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if task_description:
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cursor.execute("INSERT INTO Tasks (task_description) OUTPUT INSERTED.id VALUES (?)", (task_description,))
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task_id = cursor.fetchone()[0]
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conn.commit()
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response = json.dumps({'message': 'Task added successfully', 'id': task_id})
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status = '200 OK'
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else:
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response = json.dumps({'message': 'Task description is required'})
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status = '400 Bad Request'
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except Exception as e:
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response = json.dumps({'message': str(e)}) # Obsługa błędu
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status = '500 Internal Server Error'
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# Pobieranie zadań
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elif path == '/get_tasks' and method == 'GET':
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try:
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cursor.execute("SELECT id, task_description FROM Tasks") # Pobranie zadań z bazy danych
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tasks = cursor.fetchall()
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tasks_list = [{'id': task[0], 'task_description': task[1]} for task in tasks]
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response = json.dumps(tasks_list)
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status = '200 OK'
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except Exception as e:
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response = json.dumps({'message': str(e)}) # Obsługa błędu
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status = '500 Internal Server Error'
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# Usuwanie zadania
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elif path.startswith('/delete_task/') and method == 'DELETE':
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try:
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task_id = int(path.split('/')[-1])
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cursor.execute("DELETE FROM Tasks WHERE id = ?", (task_id,)) # Usunięcie zadania z bazy danych
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conn.commit()
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response = json.dumps({'message': 'Task deleted successfully'})
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status = '200 OK'
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except Exception as e:
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response = json.dumps({'message': str(e)}) # Obsługa błędu
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status = '500 Internal Server Error'
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else:
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response = json.dumps({'message': 'Not Found'})
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status = '404 Not Found'
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start_response(status, response_headers)
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return [response.encode('utf-8')]
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if __name__ == "__main__":
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httpd = make_server('', 8000, application) # Utworzenie serwera na porcie 8000
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print("Serving on port 8000...")
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httpd.serve_forever() # Rozpoczęcie obsługi żądań
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99
styles.css
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99
styles.css
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body, h1, ul, li, button, input {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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font-family: Arial, sans-serif;
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}
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body {
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background-color: #f4f4f9;
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100vh;
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}
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.container {
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background: #fff;
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padding: 20px;
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border-radius: 10px;
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box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
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width: 300px;
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}
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h1 {
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font-size: 24px;
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margin-bottom: 20px;
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text-align: center;
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color: #333;
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}
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.input-container {
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display: flex;
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justify-content: space-between;
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margin-bottom: 20px;
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}
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input[type="text"] {
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flex: 1;
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padding: 10px;
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font-size: 16px;
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border: 1px solid #ddd;
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border-radius: 5px;
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margin-right: 10px;
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}
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button {
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padding: 10px;
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font-size: 16px;
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border: none;
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border-radius: 5px;
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background-color: #007bff;
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color: #fff;
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cursor: pointer;
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transition: background-color 0.3s;
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}
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button:hover {
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background-color: #0056b3;
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}
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ul {
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list-style: none;
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}
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li {
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background: #f9f9f9;
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padding: 10px;
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border: 1px solid #ddd;
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border-radius: 5px;
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-bottom: 10px;
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}
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li.completed {
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text-decoration: line-through;
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color: #999;
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}
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li button {
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margin-left: 10px;
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}
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li button:first-of-type {
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background-color: #28a745;
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}
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li button:first-of-type:hover {
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background-color: #218838;
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}
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li button:last-of-type {
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background-color: #dc3545;
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}
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li button:last-of-type:hover {
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background-color: #c82333;
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}
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