fix change max connections

ereuse_devicehub/db.py

@@ -70,6 +70,9 @@ def create_view(name, selectable):
     return table
 
 
-db = SQLAlchemy(session_options={'autoflush': False})
+db = SQLAlchemy(
+    session_options={'autoflush': False},
+    engine_options={"pool_size": 5, "max_overflow": 10}
+)
 f = db.func
 exp = expression

ereuse_devicehub/teal/db.py

@@ -240,9 +240,10 @@ class SQLAlchemy(FlaskSQLAlchemy):
         metadata=None,
         query_class=BaseQuery,
         model_class=Model,
+        engine_options=None,
     ):
         super().__init__(
-            app, use_native_unicode, session_options, metadata, query_class, model_class
+            app, use_native_unicode, session_options, metadata, query_class, model_class, engine_options
         )
 
     def create_session(self, options):
@@ -266,9 +267,10 @@ class SchemaSQLAlchemy(SQLAlchemy):
         metadata=None,
         query_class=Query,
         model_class=Model,
+        engine_options=None,
     ):
         super().__init__(
-            app, use_native_unicode, session_options, metadata, query_class, model_class
+            app, use_native_unicode, session_options, metadata, query_class, model_class, engine_options
         )
         # The following listeners set psql's search_path to the correct
         # schema and create the schemas accordingly