Command: regenerate external id

1 files changed, 69 insertions, 0 deletions

diff --git a/ishtar_common/management/commands/regenerate_external_id.py b/ishtar_common/management/commands/regenerate_external_id.py
new file mode 100644
index 000000000..2b2440a5a
--- /dev/null
+++ b/ishtar_common/management/commands/regenerate_external_id.py
@@ -0,0 +1,69 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright (C) 2013-2018 Étienne Loks  <etienne.loks_AT_peacefrogsDOTnet>
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# See the file COPYING for details.
+
+import sys
+
+from django.core.management.base import BaseCommand, CommandError
+
+from django.apps import apps
+
+
+class Command(BaseCommand):
+    help = 'Regenerate external id.'
+
+    def add_arguments(self, parser):
+        parser.add_argument('model', nargs='+')
+
+    def handle(self, *args, **options):
+        for app_model_name in options['model']:
+            try:
+                capp, model_name = app_model_name.split(".")
+            except ValueError:
+                raise CommandError(
+                    "Model argument must be \"app_name.model_name\". Example: "
+                    "archaeological_operations.Operation"
+                )
+            ok = False
+            for app in ['ishtar_common', 'archaeological_operations',
+                        'archaeological_context_records',
+                        'archaeological_finds', 'archaeological_warehouse']:
+                if capp != app:
+                    continue
+                for model in apps.get_app_config(app).get_models():
+                    if model.__name__ != model_name:
+                        continue
+                    if not bool(
+                            [k for k in dir(model) if k == "external_id"]):
+                        continue
+                    msg = u"* processing {} - {}:".format(
+                        app, model._meta.verbose_name)
+                    ln = model.objects.count()
+                    for idx, object in enumerate(model.objects.all()):
+                        object.skip_history_when_saving = True
+                        object.external_id = None
+                        cmsg = u"\r{} {}/{}".format(msg, idx + 1, ln)
+                        sys.stdout.write(cmsg)
+                        sys.stdout.flush()
+                        object.save()
+                    sys.stdout.write("\n")
+                    ok = True
+                if not ok:
+                    raise CommandError(
+                        "{} not found or have no external ID".format(
+                            app_model_name))