Revize b593b83c

Re #8569 Added comments to connection_provider.py

src/config/connection_provider.py

@@ -9 +9 @@
 
 
 class ConnectionProvider(Module):
+    """
+    Dependency injection module that provides database connection singleton
+    """
 
     @singleton
     @provider
     def connect(self, configuration: Configuration) -> Connection:
+        """
+        Create an SQLite connection based on the given configuration
+        :param configuration: Configuration class with application config data
+        :return: connection singleton
+        """
         co = sqlite3.connect(database=configuration.connection_string, check_same_thread=False)
         cu = co.cursor()
         cu.executescript(SCHEMA_SQL)  # TODO change setup_database not to drop tables if they exist