Make Users.email_address unique

app/models.py

@@ -30,7 +30,7 @@ class User(db.Model):
 
     id = db.Column(db.Integer, primary_key=True)
     name = db.Column(db.String, nullable=False, index=True, unique=False)
-    email_address = db.Column(db.String(255), nullable=False, index=True)
+    email_address = db.Column(db.String(255), nullable=False, index=True, unique=True)
     password = db.Column(db.String, index=False, unique=False, nullable=False)
     mobile_number = db.Column(db.String, index=False, unique=False, nullable=False)
     created_at = db.Column(db.DateTime, index=False, unique=False, nullable=False)

migrations/versions/70_unique_email.py

@@ -0,0 +1,28 @@
+"""empty message
+
+Revision ID: 70_unique_email
+Revises: 60_add_service
+Create Date: 2015-12-17 14:46:52.831849
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '70_unique_email'
+down_revision = '60_add_service'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index('ix_users_email_address', table_name='users')
+    op.create_index(op.f('ix_users_email_address'), 'users', ['email_address'], unique=True)
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_users_email_address'), table_name='users')
+    op.create_index('ix_users_email_address', 'users', ['email_address'], unique=False)
+    ### end Alembic commands ###

tests/app/main/dao/test_users_dao.py

@@ -62,7 +62,7 @@ def test_get_all_users_returns_all_users(notifications_admin, notifications_admi
                  role_id=1)
     user3 = User(name='test three',
                  password='some2ndpassword',
-                 email_address='test2@get_all.gov.uk',
+                 email_address='test3@get_all.gov.uk',
                  mobile_number='+441234123412',
                  created_at=datetime.now(),
                  role_id=1)