fastAPI 심화

- Chart.js - pdf, csv 파일 업로드 후 데이터 정제하여 llm으로 처리 후 결과 도출 - sqlite로 데이터 저장 - ORM - SQLAlchemy
2026-06-16 18:03:02 +09:00
parent ccfdac1286
commit 06eb3c57ab
43 changed files with 1912 additions and 39 deletions
@@ -0,0 +1,105 @@
+{
+ "cells": [
+  {
+   "metadata": {},
+   "cell_type": "markdown",
+   "source": [
+    "### ORM(Object Relational Mapping)\n",
+    "- 데이터베이스 테이블을 파이썬의 클래스로 매핑\n",
+    "- 컬럼 == 속성\n",
+    "- SQLALchemy 라이브러리가 ORM 지원"
+   ],
+   "id": "11f3431eb6bf7a12"
+  },
+  {
+   "cell_type": "code",
+   "id": "initial_id",
+   "metadata": {
+    "collapsed": true,
+    "ExecuteTime": {
+     "end_time": "2026-06-16T08:48:53.375278031Z",
+     "start_time": "2026-06-16T08:48:51.509377417Z"
+    }
+   },
+   "source": "!pip install sqlalchemy",
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Requirement already satisfied: sqlalchemy in ./.venv/lib/python3.12/site-packages (2.0.51)\n",
+      "Requirement already satisfied: greenlet>=1 in ./.venv/lib/python3.12/site-packages (from sqlalchemy) (3.5.1)\n",
+      "Requirement already satisfied: typing-extensions>=4.6.0 in ./.venv/lib/python3.12/site-packages (from sqlalchemy) (4.15.0)\n"
+     ]
+    }
+   ],
+   "execution_count": 1
+  },
+  {
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2026-06-16T08:57:27.860045705Z",
+     "start_time": "2026-06-16T08:57:27.561065535Z"
+    }
+   },
+   "cell_type": "code",
+   "source": [
+    "# Users 테이블 (id, name, email)\n",
+    "# create table users()\n",
+    "from sqlalchemy import Column, Integer, String, create_engine\n",
+    "from sqlalchemy.orm import declarative_base, sessionmaker\n",
+    "\n",
+    "# 데이터베이스 연결\n",
+    "engine = create_engine('sqlite:///db/users.db')\n",
+    "# engine = create_engine('sqlite:///users.db')\n",
+    "\n",
+    "# 모든 모델 크래스의 부모 클래스가 될 Base 객체 생성\n",
+    "Base = declarative_base()\n",
+    "class User(Base):\n",
+    "    __tablename__ = 'users'\n",
+    "\n",
+    "    id = Column(Integer, primary_key=True)\n",
+    "    name = Column(String)\n",
+    "    email = Column(String, unique=True)\n",
+    "\n",
+    "    def __str__(self):\n",
+    "        return f\"<User(name='{self.name}', email='{self.email}')>\"\n",
+    "\n",
+    "# 테이블 생성\n",
+    "Base.metadata.create_all(engine)"
+   ],
+   "id": "7a41f863de1efd48",
+   "outputs": [],
+   "execution_count": 2
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "outputs": [],
+   "execution_count": null,
+   "source": "",
+   "id": "de1ebcd8f162fd42"
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}