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701
app.py
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701
app.py
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from flask import Flask, request, jsonify
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from flask_cors import CORS
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import mysql.connector
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import os
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from datetime import datetime
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app = Flask(__name__)
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CORS(app) # 啟用 CORS，允許本機前端存取
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# 資料庫連線資訊
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DB_CONFIG = {
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'host': 'mysql.theaken.com',
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'port': 33306,
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'user': 'A019',
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'password': '9wvKEkxBzVca',
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'database': 'db_A019'
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}
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# 建立資料庫連線
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def get_db_connection():
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try:
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conn = mysql.connector.connect(**DB_CONFIG)
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return conn
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except mysql.connector.Error as err:
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print(f"資料庫連線錯誤: {err}")
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return None
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# 統一回應格式
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def create_response(status, code, message, data=None):
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response = {
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"status": status,
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"code": code,
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"message": message
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}
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if data is not None:
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response["data"] = data
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return response
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# 錯誤處理
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def create_error_response(code, message):
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return create_response("error", code, message)
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# 獲取所有使用者，支援過濾和分頁
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@app.route('/v1/users', methods=['GET'])
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def get_users():
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try:
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# 取得查詢參數
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min_age = request.args.get('min_age', type=int)
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max_age = request.args.get('max_age', type=int)
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page = request.args.get('page', 1, type=int)
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limit = request.args.get('limit', 10, type=int)
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# 計算偏移量
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offset = (page - 1) * limit
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conn = get_db_connection()
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if not conn:
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return jsonify(create_error_response(500, "資料庫連線失敗")), 500
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cursor = conn.cursor(dictionary=True)
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# 建立基本查詢
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query = "SELECT * FROM users"
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count_query = "SELECT COUNT(*) as total FROM users"
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params = []
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where_clauses = []
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# 加入過濾條件
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if min_age is not None:
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where_clauses.append("age >= %s")
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params.append(min_age)
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if max_age is not None:
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where_clauses.append("age <= %s")
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params.append(max_age)
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# 組合 WHERE 子句
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if where_clauses:
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query += " WHERE " + " AND ".join(where_clauses)
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count_query += " WHERE " + " AND ".join(where_clauses)
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# 加入分頁
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query += " LIMIT %s OFFSET %s"
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params.extend([limit, offset])
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# 執行查詢
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cursor.execute(query, params)
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users = cursor.fetchall()
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# 獲取總記錄數
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cursor.execute(count_query, params[:-2] if params else [])
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total = cursor.fetchone()['total']
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# 計算總頁數
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total_pages = (total + limit - 1) // limit
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# 建立 meta 資訊
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meta = {
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"total": total,
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"page": page,
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"limit": limit,
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"total_pages": total_pages
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}
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cursor.close()
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conn.close()
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return jsonify(create_response("success", 200, "成功獲取使用者列表", {"users": users, "meta": meta})), 200
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except Exception as e:
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return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
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# 獲取所有披薩，支援過濾和分頁
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@app.route('/v1/pizzas', methods=['GET'])
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def get_pizzas():
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try:
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# 取得查詢參數
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min_price = request.args.get('min_price', type=float)
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max_price = request.args.get('max_price', type=float)
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size = request.args.get('size')
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page = request.args.get('page', 1, type=int)
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limit = request.args.get('limit', 10, type=int)
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# 計算偏移量
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offset = (page - 1) * limit
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conn = get_db_connection()
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if not conn:
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return jsonify(create_error_response(500, "資料庫連線失敗")), 500
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cursor = conn.cursor(dictionary=True)
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# 建立基本查詢
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query = "SELECT * FROM pizzas"
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count_query = "SELECT COUNT(*) as total FROM pizzas"
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params = []
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where_clauses = []
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# 加入過濾條件
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if min_price is not None:
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where_clauses.append("price >= %s")
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params.append(min_price)
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if max_price is not None:
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where_clauses.append("price <= %s")
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params.append(max_price)
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if size is not None:
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where_clauses.append("size = %s")
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params.append(size)
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# 組合 WHERE 子句
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if where_clauses:
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query += " WHERE " + " AND ".join(where_clauses)
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count_query += " WHERE " + " AND ".join(where_clauses)
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# 加入分頁
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query += " LIMIT %s OFFSET %s"
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params.extend([limit, offset])
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# 執行查詢
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cursor.execute(query, params)
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pizzas = cursor.fetchall()
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# 獲取總記錄數
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cursor.execute(count_query, params[:-2] if params else [])
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total = cursor.fetchone()['total']
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# 計算總頁數
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total_pages = (total + limit - 1) // limit
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# 建立 meta 資訊
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meta = {
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"total": total,
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"page": page,
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"limit": limit,
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"total_pages": total_pages
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}
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cursor.close()
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conn.close()
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return jsonify(create_response("success", 200, "成功獲取披薩列表", {"pizzas": pizzas, "meta": meta})), 200
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except Exception as e:
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return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
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# 獲取單一使用者
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@app.route('/v1/users/<int:user_id>', methods=['GET'])
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def get_user(user_id):
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try:
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conn = get_db_connection()
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if not conn:
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return jsonify(create_error_response(500, "資料庫連線失敗")), 500
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cursor = conn.cursor(dictionary=True)
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cursor.execute("SELECT * FROM users WHERE id = %s", (user_id,))
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user = cursor.fetchone()
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cursor.close()
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conn.close()
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if not user:
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return jsonify(create_error_response(404, f"找不到 ID 為 {user_id} 的使用者")), 404
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return jsonify(create_response("success", 200, "成功獲取使用者資料", {"user": user})), 200
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except Exception as e:
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return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
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# 獲取單一披薩
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@app.route('/v1/pizzas/<int:pizza_id>', methods=['GET'])
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def get_pizza_by_id(pizza_id):
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try:
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conn = get_db_connection()
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if not conn:
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return jsonify(create_error_response(500, "資料庫連線失敗")), 500
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cursor = conn.cursor(dictionary=True)
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cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
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pizza = cursor.fetchone()
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cursor.close()
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conn.close()
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if not pizza:
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return jsonify(create_error_response(404, f"找不到 ID 為 {pizza_id} 的披薩")), 404
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return jsonify(create_response("success", 200, "成功獲取披薩資料", {"pizza": pizza})), 200
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except Exception as e:
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return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
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cursor.execute("SELECT * FROM users WHERE id = %s", (user_id,))
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user = cursor.fetchone()
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cursor.close()
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conn.close()
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if not user:
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return jsonify(create_error_response(404, f"找不到 ID 為 {user_id} 的使用者")), 404
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return jsonify(create_response("success", 200, "成功獲取使用者資料", {"user": user})), 200
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except Exception as e:
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return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
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# 獲取單一披薩
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# 已在上方定義 GET /v1/pizzas/<int:pizza_id> 路由
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# 新增披薩
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@app.route('/v1/pizzas', methods=['POST'])
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def create_pizza():
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try:
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data = request.get_json()
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# 驗證必要欄位
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required_fields = ['name', 'price', 'size']
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for field in required_fields:
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if field not in data:
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return jsonify(create_error_response(400, f"缺少必要欄位: {field}")), 400
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# 驗證資料類型
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if not isinstance(data['name'], str):
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return jsonify(create_error_response(400, "name 必須是字串")), 400
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try:
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price = float(data['price'])
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if price <= 0:
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return jsonify(create_error_response(400, "price 必須大於 0")), 400
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except (ValueError, TypeError):
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return jsonify(create_error_response(400, "price 必須是有效的數字")), 400
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if not isinstance(data['size'], str) or data['size'] not in ['S', 'M', 'L']:
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return jsonify(create_error_response(400, "size 必須是 S、M 或 L")), 400
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conn = get_db_connection()
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if not conn:
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return jsonify(create_error_response(500, "資料庫連線失敗")), 500
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cursor = conn.cursor(dictionary=True)
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# 設定時間
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now = datetime.now()
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# 插入資料
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insert_query = "INSERT INTO pizzas (name, price, size, created_at, updated_at) VALUES (%s, %s, %s, %s, %s)"
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cursor.execute(insert_query, (data['name'], price, data['size'], now, now))
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pizza_id = cursor.lastrowid
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conn.commit()
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# 獲取新增的披薩資料
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cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
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new_pizza = cursor.fetchone()
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cursor.close()
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conn.close()
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return jsonify(create_response("success", 201, "成功新增披薩", {"pizza": new_pizza})), 201
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except Exception as e:
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return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
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# 更新披薩
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@app.route('/v1/pizzas/<int:pizza_id>', methods=['PATCH'])
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def update_pizza(pizza_id):
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try:
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data = request.get_json()
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# 至少需要一個欄位
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if not data or not any(field in data for field in ['name', 'price', 'size']):
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return jsonify(create_error_response(400, "至少需要提供一個欄位: name, price, size")), 400
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# 驗證資料類型
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if 'name' in data and not isinstance(data['name'], str):
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return jsonify(create_error_response(400, "name 必須是字串")), 400
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if 'price' in data:
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try:
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price = float(data['price'])
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if price <= 0:
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return jsonify(create_error_response(400, "price 必須大於 0")), 400
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data['price'] = price
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except (ValueError, TypeError):
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return jsonify(create_error_response(400, "price 必須是有效的數字")), 400
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if 'size' in data and (not isinstance(data['size'], str) or data['size'] not in ['S', 'M', 'L']):
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return jsonify(create_error_response(400, "size 必須是 S、M 或 L")), 400
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conn = get_db_connection()
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if not conn:
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return jsonify(create_error_response(500, "資料庫連線失敗")), 500
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cursor = conn.cursor(dictionary=True)
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# 檢查披薩是否存在
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cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
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pizza = cursor.fetchone()
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if not pizza:
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cursor.close()
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conn.close()
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return jsonify(create_error_response(404, f"找不到 ID 為 {pizza_id} 的披薩")), 404
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# 設定更新時間
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now = datetime.now()
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data['updated_at'] = now
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# 建立更新查詢
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update_fields = []
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update_values = []
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for field in ['name', 'price', 'size', 'updated_at']:
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if field in data:
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update_fields.append(f"{field} = %s")
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update_values.append(data[field])
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update_values.append(pizza_id) # WHERE id = %s 的參數
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update_query = f"UPDATE pizzas SET {', '.join(update_fields)} WHERE id = %s"
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cursor.execute(update_query, update_values)
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conn.commit()
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# 獲取更新後的披薩資料
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cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
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updated_pizza = cursor.fetchone()
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cursor.close()
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conn.close()
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return jsonify(create_response("success", 200, "成功更新披薩", {"pizza": updated_pizza})), 200
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except Exception as e:
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return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
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# 刪除披薩
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@app.route('/v1/pizzas/<int:pizza_id>', methods=['DELETE'])
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def delete_pizza(pizza_id):
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try:
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conn = get_db_connection()
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if not conn:
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return jsonify(create_error_response(500, "資料庫連線失敗")), 500
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cursor = conn.cursor()
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# 檢查披薩是否存在
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cursor.execute("SELECT id FROM pizzas WHERE id = %s", (pizza_id,))
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pizza = cursor.fetchone()
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if not pizza:
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cursor.close()
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conn.close()
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return jsonify(create_error_response(404, f"找不到 ID 為 {pizza_id} 的披薩")), 404
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# 刪除披薩
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cursor.execute("DELETE FROM pizzas WHERE id = %s", (pizza_id,))
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conn.commit()
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cursor.close()
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conn.close()
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return jsonify(create_response("success", 204, "成功刪除披薩")), 204
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except Exception as e:
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return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
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# 新增使用者
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@app.route('/v1/users', methods=['POST'])
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def create_user():
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try:
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data = request.get_json()
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# 驗證必要欄位
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required_fields = ['name', 'email', 'age']
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for field in required_fields:
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if field not in data:
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return jsonify(create_error_response(400, f"缺少必要欄位: {field}")), 400
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# 驗證資料類型
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if not isinstance(data['name'], str):
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return jsonify(create_error_response(400, "name 必須是字串")), 400
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# 驗證資料類型
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if not isinstance(data['name'], str):
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return jsonify(create_error_response(400, "name 必須是字串")), 400
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try:
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price = float(data['price'])
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if price <= 0:
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return jsonify(create_error_response(400, "price 必須大於 0")), 400
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except (ValueError, TypeError):
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return jsonify(create_error_response(400, "price 必須是有效的數字")), 400
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if not isinstance(data['size'], str) or data['size'] not in ['S', 'M', 'L']:
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return jsonify(create_error_response(400, "size 必須是 S、M 或 L")), 400
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conn = get_db_connection()
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if not conn:
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return jsonify(create_error_response(500, "資料庫連線失敗")), 500
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cursor = conn.cursor()
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# 設定時間
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now = datetime.now()
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# 插入資料
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insert_query = "INSERT INTO pizzas (name, price, size, created_at, updated_at) VALUES (%s, %s, %s, %s, %s)"
|
||||
cursor.execute(insert_query, (data['name'], price, data['size'], now, now))
|
||||
pizza_id = cursor.lastrowid
|
||||
conn.commit()
|
||||
|
||||
# 獲取新增的披薩資料
|
||||
cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
|
||||
new_pizza = cursor.fetchone()
|
||||
|
||||
cursor.close()
|
||||
conn.close()
|
||||
|
||||
return jsonify(create_response("success", 201, "成功新增披薩", {"pizza": new_pizza})), 201
|
||||
|
||||
except Exception as e:
|
||||
return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
|
||||
|
||||
if not isinstance(data['email'], str):
|
||||
return jsonify(create_error_response(400, "email 必須是字串")), 400
|
||||
|
||||
if not isinstance(data['age'], int):
|
||||
return jsonify(create_error_response(400, "age 必須是整數")), 400
|
||||
|
||||
# 驗證 email 格式 (簡單驗證)
|
||||
if '@' not in data['email']:
|
||||
return jsonify(create_error_response(400, "email 格式不正確")), 400
|
||||
|
||||
conn = get_db_connection()
|
||||
if not conn:
|
||||
return jsonify(create_error_response(500, "資料庫連線失敗")), 500
|
||||
|
||||
cursor = conn.cursor(dictionary=True)
|
||||
|
||||
# 使用參數化查詢避免 SQL 注入
|
||||
query = "INSERT INTO users (name, email, age) VALUES (%s, %s, %s)"
|
||||
cursor.execute(query, (data['name'], data['email'], data['age']))
|
||||
|
||||
# 獲取新增的使用者 ID
|
||||
user_id = cursor.lastrowid
|
||||
|
||||
conn.commit()
|
||||
|
||||
# 獲取新增的使用者資料
|
||||
cursor.execute("SELECT * FROM users WHERE id = %s", (user_id,))
|
||||
new_user = cursor.fetchone()
|
||||
|
||||
cursor.close()
|
||||
conn.close()
|
||||
|
||||
return jsonify(create_response("success", 201, "成功新增使用者", {"user": new_user})), 201
|
||||
|
||||
except Exception as e:
|
||||
return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
|
||||
|
||||
# 更新使用者
|
||||
@app.route('/v1/users/<int:user_id>', methods=['PATCH'])
|
||||
def update_user(user_id):
|
||||
try:
|
||||
data = request.get_json()
|
||||
|
||||
# 檢查是否有要更新的欄位
|
||||
if not data:
|
||||
return jsonify(create_error_response(400, "沒有提供要更新的資料")), 400
|
||||
|
||||
# 驗證資料類型
|
||||
if 'name' in data and not isinstance(data['name'], str):
|
||||
return jsonify(create_error_response(400, "name 必須是字串")), 400
|
||||
|
||||
if 'email' in data and not isinstance(data['email'], str):
|
||||
return jsonify(create_error_response(400, "email 必須是字串")), 400
|
||||
|
||||
if 'age' in data and not isinstance(data['age'], int):
|
||||
return jsonify(create_error_response(400, "age 必須是整數")), 400
|
||||
|
||||
# 驗證 email 格式 (簡單驗證)
|
||||
if 'email' in data and '@' not in data['email']:
|
||||
return jsonify(create_error_response(400, "email 格式不正確")), 400
|
||||
|
||||
conn = get_db_connection()
|
||||
if not conn:
|
||||
return jsonify(create_error_response(500, "資料庫連線失敗")), 500
|
||||
|
||||
cursor = conn.cursor(dictionary=True)
|
||||
|
||||
# 檢查使用者是否存在
|
||||
cursor.execute("SELECT * FROM users WHERE id = %s", (user_id,))
|
||||
user = cursor.fetchone()
|
||||
|
||||
if not user:
|
||||
cursor.close()
|
||||
conn.close()
|
||||
return jsonify(create_error_response(404, f"找不到 ID 為 {user_id} 的使用者")), 404
|
||||
|
||||
# 建立更新查詢
|
||||
update_fields = []
|
||||
params = []
|
||||
|
||||
if 'name' in data:
|
||||
update_fields.append("name = %s")
|
||||
params.append(data['name'])
|
||||
|
||||
if 'email' in data:
|
||||
update_fields.append("email = %s")
|
||||
params.append(data['email'])
|
||||
|
||||
if 'age' in data:
|
||||
update_fields.append("age = %s")
|
||||
params.append(data['age'])
|
||||
|
||||
# 如果沒有要更新的欄位
|
||||
if not update_fields:
|
||||
cursor.close()
|
||||
conn.close()
|
||||
return jsonify(create_error_response(400, "沒有提供有效的更新欄位")), 400
|
||||
|
||||
# 建立更新查詢
|
||||
query = "UPDATE users SET " + ", ".join(update_fields) + " WHERE id = %s"
|
||||
params.append(user_id)
|
||||
|
||||
# 執行更新
|
||||
cursor.execute(query, params)
|
||||
conn.commit()
|
||||
|
||||
# 獲取更新後的使用者資料
|
||||
cursor.execute("SELECT * FROM users WHERE id = %s", (user_id,))
|
||||
updated_user = cursor.fetchone()
|
||||
|
||||
cursor.close()
|
||||
conn.close()
|
||||
|
||||
return jsonify(create_response("success", 200, "成功更新使用者資料", {"user": updated_user})), 200
|
||||
|
||||
except Exception as e:
|
||||
return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
|
||||
|
||||
# 刪除使用者
|
||||
@app.route('/v1/users/<int:user_id>', methods=['DELETE'])
|
||||
def delete_user(user_id):
|
||||
try:
|
||||
conn = get_db_connection()
|
||||
if not conn:
|
||||
return jsonify(create_error_response(500, "資料庫連線失敗")), 500
|
||||
|
||||
cursor = conn.cursor()
|
||||
|
||||
# 檢查使用者是否存在
|
||||
cursor.execute("SELECT id FROM users WHERE id = %s", (user_id,))
|
||||
user = cursor.fetchone()
|
||||
|
||||
if not user:
|
||||
cursor.close()
|
||||
conn.close()
|
||||
return jsonify(create_error_response(404, f"找不到 ID 為 {user_id} 的使用者")), 404
|
||||
|
||||
# 刪除使用者
|
||||
cursor.execute("DELETE FROM users WHERE id = %s", (user_id,))
|
||||
conn.commit()
|
||||
|
||||
cursor.close()
|
||||
conn.close()
|
||||
|
||||
return jsonify(create_response("success", 204, "成功刪除使用者")), 204
|
||||
|
||||
except Exception as e:
|
||||
return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
|
||||
|
||||
# 獲取所有 pizzas，支援分頁
|
||||
# 已在上方定義 GET /v1/pizzas 路由
|
||||
|
||||
# 獲取總記錄數
|
||||
cursor.execute(count_query, params[:-2] if params else [])
|
||||
total = cursor.fetchone()['total']
|
||||
|
||||
# 計算總頁數
|
||||
total_pages = (total + limit - 1) // limit
|
||||
|
||||
# 建立 meta 資訊
|
||||
meta = {
|
||||
"total": total,
|
||||
"page": page,
|
||||
"limit": limit,
|
||||
"total_pages": total_pages
|
||||
}
|
||||
|
||||
cursor.close()
|
||||
conn.close()
|
||||
|
||||
return jsonify(create_response("success", 200, "成功獲取披薩列表", {"pizzas": pizzas, "meta": meta})), 200
|
||||
|
||||
except Exception as e:
|
||||
return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
|
||||
|
||||
# 獲取單一 pizza
|
||||
# 注意：此路由已在其他地方定義
|
||||
def get_pizza(pizza_id):
|
||||
try:
|
||||
conn = get_db_connection()
|
||||
if not conn:
|
||||
return jsonify(create_error_response(500, "資料庫連線失敗")), 500
|
||||
|
||||
cursor = conn.cursor(dictionary=True)
|
||||
cursor.execute("SELECT * FROM pizzas WHERE id = %s", (pizza_id,))
|
||||
pizza = cursor.fetchone()
|
||||
|
||||
cursor.close()
|
||||
conn.close()
|
||||
|
||||
if not pizza:
|
||||
return jsonify(create_error_response(404, f"找不到 ID 為 {pizza_id} 的披薩")), 404
|
||||
|
||||
return jsonify(create_response("success", 200, "成功獲取披薩資料", {"pizza": pizza})), 200
|
||||
|
||||
except Exception as e:
|
||||
return jsonify(create_error_response(500, f"伺服器錯誤: {str(e)}")), 500
|
||||
|
||||
# 新增 pizza
|
||||
# 已在上方定義 POST /v1/pizzas 路由
|
||||
|
||||
# 更新 pizza
|
||||
# 已在上方定義 PATCH /v1/pizzas/<int:pizza_id> 路由
|
||||
|
||||
# 刪除 pizza
|
||||
# 已在上方定義 DELETE /v1/pizzas/<int:pizza_id> 路由
|
||||
|
||||
# 主程式入口
|
||||
if __name__ == '__main__':
|
||||
# 確保資料表存在
|
||||
conn = get_db_connection()
|
||||
if conn:
|
||||
cursor = conn.cursor()
|
||||
cursor.execute("""
|
||||
CREATE TABLE IF NOT EXISTS users (
|
||||
id INT AUTO_INCREMENT PRIMARY KEY,
|
||||
name VARCHAR(100) NOT NULL,
|
||||
email VARCHAR(100) NOT NULL,
|
||||
age INT NOT NULL
|
||||
)
|
||||
""")
|
||||
|
||||
# 確保 pizzas 資料表存在
|
||||
cursor.execute("""
|
||||
CREATE TABLE IF NOT EXISTS pizzas (
|
||||
id INT AUTO_INCREMENT PRIMARY KEY,
|
||||
name VARCHAR(50) NOT NULL,
|
||||
price DECIMAL(10, 2) NOT NULL,
|
||||
size VARCHAR(2) NOT NULL,
|
||||
created_at DATETIME NOT NULL,
|
||||
updated_at DATETIME NOT NULL
|
||||
)
|
||||
""")
|
||||
|
||||
conn.commit()
|
||||
cursor.close()
|
||||
conn.close()
|
||||
|
||||
app.run(debug=True)
|
||||
Reference in New Issue
Block a user