Create db connection string from settings

Author: ferhat-mousavi

data_layer/engine.py

@@ -1,5 +1,6 @@
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
+from settings.settings import Settings
 
 
 class Engine:
@@ -11,7 +12,15 @@ def __new__(cls, *args, **kwargs):
         return cls.__instance
 
     def __init__(self):
-        self.engine = create_engine('sqlite:///db.sqlite3', echo=True)
+        self.engine = create_engine(self._create_connection_string(), echo=True)
         print(self.engine)
 
         self.session = sessionmaker(bind=self.engine)()
+
+    def _create_connection_string(self):
+        settings = Settings()
+        connection_string = ""
+        if settings.db_engine == "sqlite":
+            connection_string = f"{settings.db_engine}:///{settings.db_database_name}"
+        print("connection_string:", connection_string)
+        return connection_string

settings/settings.py

@@ -25,6 +25,12 @@ def db_engine(self):
             return self.database.get("engine")
         return None
 
+    @property
+    def db_database_name(self):
+        if self.database:
+            return self.database.get("database_name")
+        return None
+
     @property
     def md_width(self):
         if self.main_display: