Work in blog section

- Arrange the rss feed
- The articles are listed in chronological order
- Test the doublon for new article

tools/blog_tools.py

@@ -0,0 +1,24 @@
+from flask import Flask
+import sqlite3
+import string
+import time
+
+app = Flask( 'pywallter' )
+app.config.from_pyfile('config.py')
+
+
+DATABASE = app.config['DATABASE']
+DOSSIER_PERSO = app.config['DOSSIER_APP']
+DATABASE = app.config['DATABASE']
+
+
+
+def article_exist(title_id : str, author : str ) -> bool:
+    conn = sqlite3.connect(DATABASE)
+    cursor = conn.cursor()
+    cursor.execute("""SELECT  title FROM Blog_posts WHERE title_id=? AND author=?""", (title_id, author))
+    article = cursor.fetchone()
+    if article != None:
+        return True
+    else:
+        return False