[migration] Migrating since/until to time_range (#8372)

superset/migrations/versions/1495eb914ad3_time_range.py

@@ -0,0 +1,86 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""time range
+
+Revision ID: 1495eb914ad3
+Revises: 258b5280a45e
+Create Date: 2019-10-10 13:52:54.544475
+
+"""
+import json
+import logging
+
+from alembic import op
+from sqlalchemy import Column, Integer, Text
+from sqlalchemy.ext.declarative import declarative_base
+
+from superset import db
+from superset.legacy import update_time_range
+
+# revision identifiers, used by Alembic.
+revision = "1495eb914ad3"
+down_revision = "258b5280a45e"
+
+Base = declarative_base()
+
+
+class Slice(Base):
+    __tablename__ = "slices"
+
+    id = Column(Integer, primary_key=True)
+    params = Column(Text)
+
+
+def upgrade():
+    bind = op.get_bind()
+    session = db.Session(bind=bind)
+
+    for slc in session.query(Slice).all():
+        try:
+            form_data = json.loads(slc.params)
+            update_time_range(form_data)
+            slc.params = json.dumps(form_data, sort_keys=True)
+        except Exception as ex:
+            logging.exception(ex)
+
+    session.commit()
+
+
+def downgrade():
+    bind = op.get_bind()
+    session = db.Session(bind=bind)
+
+    for slc in session.query(Slice).all():
+        try:
+            form_data = json.loads(slc.params)
+
+            if "time_range" in form_data:
+
+                # Note defaults and relative dates are not compatible with since/until
+                # and thus the time range is persisted.
+                try:
+                    since, until = form_data["time_range"].split(" : ")
+                    form_data["since"] = since
+                    form_data["until"] = until
+                    del form_data["time_range"]
+                    slc.params = json.dumps(form_data, sort_keys=True)
+                except ValueError:
+                    pass
+        except Exception as ex:
+            logging.exception(ex)
+
+    session.commit()