Manage generation of QR codes

1 files changed, 73 insertions, 0 deletions

diff --git a/ishtar_common/management/commands/regenerate_qrcodes.py b/ishtar_common/management/commands/regenerate_qrcodes.py
new file mode 100644
index 000000000..e56573b06
--- /dev/null
+++ b/ishtar_common/management/commands/regenerate_qrcodes.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright (C) 2019 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
+import tempfile
+import shutil
+
+from django.core.management.base import BaseCommand
+from django.core.exceptions import FieldDoesNotExist
+
+from django.apps import apps
+
+
+APPS = ['ishtar_common', 'archaeological_operations',
+        'archaeological_context_records', 'archaeological_finds',
+        'archaeological_warehouse']
+
+
+class Command(BaseCommand):
+    args = ''
+    help = 'Regenerate QR codes'
+
+    def add_arguments(self, parser):
+        parser.add_argument('app_name', nargs='?', default=None,
+                            choices=APPS)
+        parser.add_argument('model_name', nargs='?', default=None)
+
+    def handle(self, *args, **options):
+        limit = options['app_name']
+        model_name = options['model_name']
+        if model_name:
+            model_name = model_name.lower()
+        for app in APPS:
+            if limit and app != limit:
+                continue
+            print(u"* app: {}".format(app))
+            for model in apps.get_app_config(app).get_models():
+                if model_name and model.__name__.lower() != model_name:
+                    continue
+                if model.__name__.startswith('Historical'):
+                    continue
+                try:
+                    model._meta.get_field('qrcode')
+                except FieldDoesNotExist:
+                    continue
+                msg = u"-> processing {}: ".format(model._meta.verbose_name)
+                ln = model.objects.count()
+                tmpdir = tempfile.mkdtemp("-qrcode")
+                for idx, object in enumerate(model.objects.all()):
+                    object.skip_history_when_saving = True
+                    object._no_move = True
+                    cmsg = u"\r{} {}/{}".format(msg, idx + 1, ln)
+                    sys.stdout.write(cmsg)
+                    sys.stdout.flush()
+                    object.generate_qrcode(secure=False, tmpdir=tmpdir)
+                shutil.rmtree(tmpdir)
+                sys.stdout.write("\n")