refactoring db.py, added CodeClimate badge

README.md

@@ -1,6 +1,7 @@
 ### Hexlet tests and linter status:
 [![Actions Status](https://github.com/Andrey-Barinov/python-project-83/actions/workflows/hexlet-check.yml/badge.svg)](https://github.com/Andrey-Barinov/python-project-83/actions)
 [![Actions Status](https://github.com/Andrey-Barinov/python-project-83/actions/workflows/pyci.yml/badge.svg)](https://github.com/Andrey-Barinov/python-project-83/actions)
+[![Maintainability](https://api.codeclimate.com/v1/badges/e0fb12dbfecbfbbae2c5/maintainability)](https://codeclimate.com/github/Andrey-Barinov/python-project-83/maintainability)
 
 <b>Page Analyzer</b>  is a website that analyzes the specified pages for SEO suitability.
 <p>You can try it at the link https://python-project-83-rael.onrender.com </p>

page_analyzer/db.py

@@ -8,16 +8,20 @@
 DATABASE_URL = os.getenv('DATABASE_URL')
 
 
+def get_connection():
+    return psycopg2.connect(DATABASE_URL)
+
+
 def add_url_to_db(url):
-    conn = psycopg2.connect(DATABASE_URL)
+    conn = get_connection()
     with conn.cursor() as cur:
         cur.execute("INSERT INTO urls (name) VALUES (%s)", (url,))
         conn.commit()
         conn.close()
 
 
 def get_url_by_name(url):
-    conn = psycopg2.connect(DATABASE_URL)
+    conn = get_connection()
 
     with conn.cursor(cursor_factory=NamedTupleCursor) as cur:
         cur.execute("SELECT * FROM urls WHERE name = %s", (url,))
@@ -36,7 +40,7 @@ def get_url_by_name(url):
 
 
 def get_url_by_id(url_id):
-    conn = psycopg2.connect(DATABASE_URL)
+    conn = get_connection()
 
     with conn.cursor(cursor_factory=NamedTupleCursor) as cur:
         cur.execute("SELECT * FROM urls WHERE id = %s", (url_id,))
@@ -50,7 +54,7 @@ def get_url_by_id(url_id):
 
 
 def get_all_urls_desc():
-    conn = psycopg2.connect(DATABASE_URL)
+    conn = get_connection()
 
     with conn.cursor(cursor_factory=NamedTupleCursor) as cur:
         cur.execute("SELECT * FROM urls ORDER BY id DESC")
@@ -64,7 +68,7 @@ def get_all_urls_desc():
 
 
 def add_check_to_db(url_id, status_code, h1, title, description):
-    conn = psycopg2.connect(DATABASE_URL)
+    conn = get_connection()
 
     with conn.cursor() as cur:
         cur.execute("INSERT INTO url_checks ("
@@ -82,7 +86,7 @@ def add_check_to_db(url_id, status_code, h1, title, description):
 
 
 def get_url_with_latest_check():
-    conn = psycopg2.connect(DATABASE_URL)
+    conn = get_connection()
 
     with conn.cursor(cursor_factory=NamedTupleCursor) as cur:
         cur.execute(