migrations update

migrations/env.py

@@ -1,8 +1,12 @@
 from __future__ import with_statement
-from alembic import context
-from sqlalchemy import engine_from_config, pool
-from logging.config import fileConfig
+
 import logging
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
 
 # this is the Alembic Config object, which provides
 # access to the values within the .ini file in use.
@@ -41,7 +45,9 @@ def run_migrations_offline():
 
     """
     url = config.get_main_option("sqlalchemy.url")
-    context.configure(url=url)
+    context.configure(
+        url=url, target_metadata=target_metadata, literal_binds=True
+    )
 
     with context.begin_transaction():
         context.run_migrations()
@@ -65,21 +71,23 @@ def process_revision_directives(context, revision, directives):
                 directives[:] = []
                 logger.info('No changes in schema detected.')
 
-    engine = engine_from_config(config.get_section(config.config_ini_section),
-                                prefix='sqlalchemy.',
-                                poolclass=pool.NullPool)
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix='sqlalchemy.',
+        poolclass=pool.NullPool,
+    )
 
-    connection = engine.connect()
-    context.configure(connection=connection,
-                      target_metadata=target_metadata,
-                      process_revision_directives=process_revision_directives,
-                      **current_app.extensions['migrate'].configure_args)
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            process_revision_directives=process_revision_directives,
+            **current_app.extensions['migrate'].configure_args
+        )
 
-    try:
         with context.begin_transaction():
             context.run_migrations()
-    finally:
-        connection.close()
+
 
 if context.is_offline_mode():
     run_migrations_offline()

migrations/versions/1ccf08c974d4_.py → migrations/versions/f417e7b610f4_.py

@@ -1,16 +1,16 @@
 """empty message
 
-Revision ID: 1ccf08c974d4
+Revision ID: f417e7b610f4
 Revises: 
-Create Date: 2018-03-01 00:52:29.279182
+Create Date: 2019-02-28 16:20:39.378017
 
 """
 from alembic import op
 import sqlalchemy as sa
 
 
 # revision identifiers, used by Alembic.
-revision = '1ccf08c974d4'
+revision = 'f417e7b610f4'
 down_revision = None
 branch_labels = None
 depends_on = None