wip group membership support

 * added migration recipe
 * closes inveniosoftware/invenio-app-rdm#2186

invenio_access/alembic/842a62b56e60_change_fk_accountsrole_to_string.py

@@ -0,0 +1,51 @@
+#
+# This file is part of Invenio.
+# Copyright (C) 2016-2018 CERN.
+#
+# Invenio is free software; you can redistribute it and/or modify it
+# under the terms of the MIT License; see LICENSE file for more details.
+
+"""Change FK AccountsRole to string."""
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "842a62b56e60"
+down_revision = "04480be1593e"
+branch_labels = ()
+depends_on = "8f11b75e0995"
+
+
+def upgrade():
+    """Upgrade database."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    # op.drop_index("ix_uq_partial_files_object_is_head", table_name="files_object")
+    # ### end Alembic commands ###
+    op.alter_column(
+        "access_actionsroles",
+        "role_id",
+        existing_type=sa.Integer,
+        type_=sa.String(80),
+        postgresql_using="role_id::integer",
+    )
+
+
+def downgrade():
+    """Downgrade database."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    # op.create_index(
+    #     "ix_uq_partial_files_object_is_head",
+    #     "files_object",
+    #     ["bucket_id", "key"],
+    #     unique=False,
+    # )
+    # ### end Alembic commands ###
+
+    op.alter_column(
+        "access_actionsroles",
+        "role_id",
+        existing_type=sa.String(80),
+        type_=sa.Integer,
+        postgresql_using="role_id::integer",
+    )

invenio_access/models.py

@@ -156,7 +156,7 @@ class ActionRoles(ActionNeedMixin, db.Model):
     )
 
     role_id = db.Column(
-        db.Integer(),
+        db.String(80),
         db.ForeignKey(Role.id, ondelete="CASCADE"),
         nullable=False,
         index=True,