Add datasets and enhance select

app/config.py

@@ -1,17 +1,26 @@
 import os
 from dotenv import load_dotenv
 
+dotenv_file = ".env"
 basedir = os.path.abspath(os.path.dirname(__file__))
-load_dotenv(os.path.join(basedir, ".env"))
+load_dotenv(os.path.join(basedir, dotenv_file))
 
 
 class Config(object):
     FRAMEWORKS = ["bootstrap", "bulma"]
     FRAMEWORK = os.environ.get("FRAMEWORK") or FRAMEWORKS[0]
     OUTPUT = os.environ.get("OUTPUT") or "local"  # local or docker
+    COMPARE = os.environ.get("COMPARE") == "True" or False
     TEMPLATES_AUTO_RELOAD = True
     SECRET_KEY = os.environ.get("SECRET_KEY") or "really-hard-to-guess-key"
     SQLALCHEMY_DATABASE_URI = os.environ.get(
         "DATABASE_URL"
     ) or "sqlite:///" + os.path.join(basedir, "app.db")
     SQLALCHEMY_TRACK_MODIFICATIONS = False
+
+    @staticmethod
+    def save():
+        with open(dotenv_file, "w") as f:
+            f.write("FRAMEWORK=" + Config.FRAMEWORK + "\n")
+            f.write("OUTPUT=" + Config.OUTPUT + "\n")
+            f.write("COMPARE=" + str(Config.COMPARE) + "\n")