Add table for tracking OFX updates

This is how we'll know when we queries via OFX for different accounts
and how we'll populate the table showing when we last updated an account

alembic/versions/00f2b77f1d2c_add_ofxupdate.py

@@ -0,0 +1,32 @@
+"""add ofxupdate
+
+Revision ID: 00f2b77f1d2c
+Revises: ab038e16ec9a
+Create Date: 2016-06-28 15:48:14.994815
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '00f2b77f1d2c'
+down_revision = 'ab038e16ec9a'
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+def upgrade():
+    op.create_table('ofxupdate',
+        sa.Column('uuid', postgresql.UUID(as_uuid=True), server_default=sa.text('gen_random_uuid()'), nullable=False),
+        sa.Column('created', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
+        sa.Column('updated', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
+        sa.Column('deleted', sa.DateTime(), nullable=True),
+        sa.Column('ofxaccount', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.ForeignKeyConstraint(['ofxaccount'], ['ofxaccount.uuid'], name='fk_ofxaccount'),
+        sa.PrimaryKeyConstraint('uuid', name=op.f('pk_ofxupdate'))
+    )
+
+
+def downgrade():
+    op.drop_table('ofxupdate')