splitted index function into two parts (GET and POST)

main.py

@@ -71,37 +71,39 @@ def makeQR(text): #This function is used to create a QR code and encode it base6
         img.save(buffer, 'jpeg')
         return base64.b64encode(buffer.getvalue()).decode()
 
-@app.route('/', methods=['GET', 'POST'])
-def home():
-    if request.method == 'POST': #Post will be executed if the client inserts a new entry
-        if (request.form.get('url').replace(" ", "") == ""):
-            return render_template('home.html', builddate=builddate, domain=domain_prepared, snackbar="Please enter a url to short, before submitting this form", long_url_prefilled=request.form.get('url'), short_url_prefilled=request.form.get('short').lower(), domain_prefilled=domain_to_index[request.form.get('domain')]) #return the user the prefilled form with an error message, because no url to short was provided
-        if (request.form.get('short').replace(" ", "") == ""):
-            return render_template('home.html', builddate=builddate, domain=domain_prepared, snackbar="Please enter a short name, before submitting this form", long_url_prefilled=request.form.get('url'), short_url_prefilled=request.form.get('short').lower(), domain_prefilled=domain_to_index[request.form.get('domain')]) #return the user the prefilled form with an error message, because no short link was provided
-        shorturl = (request.form.get('domain') + "/" + request.form.get('short')).lower()
-
-        url = request.form.get('url')
-        with sqlite3.connect('db/urls.db') as conn: #Check if another user already used the short link
-            cursor = conn.cursor()
-            res = cursor.execute('SELECT LONG_URL FROM WEB_URL WHERE SHORT_URL=?', [shorturl])
-            try:
-                short = res.fetchone()
-                already_used = False
-                if short is not None:
-                    already_used = True
-            except:
-                pass
-
-            if not already_used: #If short link wasn't used before, insert the link in the Database.
-                res = cursor.execute(
-                    'INSERT INTO WEB_URL (LONG_URL, SHORT_URL) VALUES (?, ?)',
-                    [url, shorturl]
-                )
-                return render_template('home.html', short_url=shorturl, builddate=builddate, domain=domain_prepared, qrcode=makeQR("http://" + shorturl)) #return the shorten link to the user
-            else:
-                return render_template('home.html', builddate=builddate, domain=domain_prepared, snackbar="URL already used, please try another one", long_url_prefilled=request.form.get('url'), short_url_prefilled=request.form.get('short').lower(), domain_prefilled=domain_to_index[request.form.get('domain')]) #return the user the prefilled form with an error message, because the url was already used
-    return render_template('home.html', builddate=builddate, domain=domain_prepared) #If request method is get, return the default site to create a new shorten link
+@app.route('/', methods=['GET'])
+def home_get():
+    return render_template('home.html', builddate=builddate, domain=domain_prepared) #return the default site to create a new shorten link
+
+@app.route('/', methods=['POST']) #This function is used to create a new url
+def home_post():
+    if (request.form.get('url').replace(" ", "") == ""):
+        return render_template('home.html', builddate=builddate, domain=domain_prepared, snackbar="Please enter a url to short, before submitting this form", long_url_prefilled=request.form.get('url'), short_url_prefilled=request.form.get('short').lower(), domain_prefilled=domain_to_index[request.form.get('domain')]) #return the user the prefilled form with an error message, because no url to short was provided
+    if (request.form.get('short').replace(" ", "") == ""):
+        return render_template('home.html', builddate=builddate, domain=domain_prepared, snackbar="Please enter a short name, before submitting this form", long_url_prefilled=request.form.get('url'), short_url_prefilled=request.form.get('short').lower(), domain_prefilled=domain_to_index[request.form.get('domain')]) #return the user the prefilled form with an error message, because no short link was provided
+    shorturl = (request.form.get('domain') + "/" + request.form.get('short')).lower()
+
+    url = request.form.get('url')
+    with sqlite3.connect('db/urls.db') as conn: #Check if another user already used the short link
+        cursor = conn.cursor()
+        res = cursor.execute('SELECT LONG_URL FROM WEB_URL WHERE SHORT_URL=?', [shorturl])
+        try:
+            short = res.fetchone()
+            already_used = False
+            if short is not None:
+                already_used = True
+        except:
+            pass
 
+        if not already_used: #If short link wasn't used before, insert the link in the Database.
+            res = cursor.execute(
+                'INSERT INTO WEB_URL (LONG_URL, SHORT_URL) VALUES (?, ?)',
+                [url, shorturl]
+            )
+            return render_template('home.html', short_url=shorturl, builddate=builddate, domain=domain_prepared, qrcode=makeQR("http://" + shorturl)) #return the shorten link to the user
+        else:
+            return render_template('home.html', builddate=builddate, domain=domain_prepared, snackbar="URL already used, please try another one", long_url_prefilled=request.form.get('url'), short_url_prefilled=request.form.get('short').lower(), domain_prefilled=domain_to_index[request.form.get('domain')]) #return the user the prefilled form with an error message, because the url was already used
+    
 @app.route('/favicon.ico') #Redirect to the static url of the favicon
 def favicon():
     return redirect("/static/favicon.ico")