fix a bug

添加上个版本的数据库迁移文件

migrations/versions/0910d83a8c4d_version1_1.py

@@ -0,0 +1,26 @@
+"""version1.1
+
+Revision ID: 0910d83a8c4d
+Revises: ccdfdabcb326
+Create Date: 2016-03-02 16:40:42.592078
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '0910d83a8c4d'
+down_revision = 'ccdfdabcb326'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('users', sa.Column('confirmed', sa.Boolean(), nullable=True))
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('users', 'confirmed')
+    ### end Alembic commands ###