{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "import psycopg2\n",
    "\n",
    "conn = psycopg2.connect(host=\"localhost\", database=\"uni-db\", user=\"postgres\", password=\"password\")\n",
    "\n",
    "conn.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'host': 'localhost', 'database': 'uni-db', 'user': 'postgres', 'password': 'password'}\n"
     ]
    }
   ],
   "source": [
    "from configparser import ConfigParser\n",
    "\n",
    "def config(filename=\"dbconfig.ini\", section=\"postgresql\"):\n",
    "    parser = ConfigParser()\n",
    "    parser.read(filename)\n",
    "\n",
    "    db = {}\n",
    "    if parser.has_section(section):\n",
    "        params = parser.items(section)\n",
    "        db = {param[0] : param[1] for param in params}\n",
    "    else:\n",
    "        raise Exception(f\"Section: {section} not found in {filename}\")\n",
    "\n",
    "    return db\n",
    "\n",
    "print(config())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[(2125, 'Sokrates', 'C4', 226), (2126, 'Russel', 'C4', 232), (2127, 'Kopernikus', 'C3', 310), (2133, 'Popper', 'C3', 52), (2134, 'Augustinus', 'C3', 309), (2136, 'Curie', 'C4', 36), (2137, 'Kant', 'C4', 7)]\n"
     ]
    }
   ],
   "source": [
    "conn = psycopg2.connect(**config())\n",
    "\n",
    "cur = conn.cursor()\n",
    "\n",
    "cur.execute(\"SELECT * FROM professoren\")\n",
    "\n",
    "print(cur.fetchall())\n",
    "\n",
    "conn.close()"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.11.3"
  },
  "orig_nbformat": 4
 },
 "nbformat": 4,
 "nbformat_minor": 2
}