First metadata addition

migrations/versions/68772b6560c3_.py

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+"""empty message
+
+Revision ID: 68772b6560c3
+Revises: 49a42c69e523
+Create Date: 2020-04-28 07:47:40.495698
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '68772b6560c3'
+down_revision = '49a42c69e523'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('corpora', sa.Column('last_edited_date', sa.DateTime(), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('corpora', 'last_edited_date')
+    # ### end Alembic commands ###