Add the ability to configure alternative domains

admin/migrations/versions/c9a0b4e653cf_.py

@@ -0,0 +1,30 @@
+""" Add alternative domains
+
+Revision ID: c9a0b4e653cf
+Revises: 73e56bad5ec5
+Create Date: 2017-09-03 18:23:36.356527
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'c9a0b4e653cf'
+down_revision = '73e56bad5ec5'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.create_table('alternative',
+    sa.Column('created_at', sa.Date(), nullable=False),
+    sa.Column('updated_at', sa.Date(), nullable=True),
+    sa.Column('comment', sa.String(length=255), nullable=True),
+    sa.Column('name', sa.String(length=80), nullable=False),
+    sa.Column('domain_name', sa.String(length=80), nullable=True),
+    sa.ForeignKeyConstraint(['domain_name'], ['domain.name'], ),
+    sa.PrimaryKeyConstraint('name')
+    )
+
+
+def downgrade():
+    op.drop_table('alternative')