Add a signup field to domains

core/admin/mailu/ui/templates/domain/create.html

@@ -13,6 +13,7 @@
   {{ macros.form_field(form.max_quota_bytes, step=1000000000, max=50000000000,
       prepend='<span class="input-group-addon"><span id="quota">'+((form.max_quota_bytes.data//1000000000).__str__() if form.max_quota_bytes.data else '∞')+'</span> GiB</span>',
       oninput='$("#quota").text(this.value == 0  ? "∞" : this.value/1000000000);') }}
+  {{ macros.form_field(form.signup_enabled) }}
   {{ macros.form_field(form.comment) }}
   {{ macros.form_field(form.submit) }}
 </form>

core/admin/migrations/versions/423155f8fc15_.py

@@ -0,0 +1,24 @@
+""" Enable signup per domain
+
+Revision ID: 423155f8fc15
+Revises: 77aa22ad72e2
+Create Date: 2017-12-02 15:07:40.052320
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '423155f8fc15'
+down_revision = '77aa22ad72e2'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    with op.batch_alter_table('domain') as batch:
+        batch.add_column(sa.Column('signup_enabled', sa.Boolean(), nullable=False, server_default=sa.sql.expression.false()))
+
+
+def downgrade():
+    with op.batch_alter_table('domain') as batch:
+        batch.drop_column('signup_enabled')