Merge branch 'devel' of dial.lo:~/djing into devel

migrate2v2_dump.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+import os
+from json import dump
+from django import setup
+
+
+class BatchSaveStreamList(list):
+    def __init__(self, model_class, model_name, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._model_class = model_class
+        self._model_name = model_name
+
+    def __iter__(self):
+        def fields(obj):
+            return {ob.name: getattr(obj, ob.name) or None for ob in obj._meta.concrete_fields if ob.name != 'id'}
+
+        for d in self._model_class.objects.all().iterator():
+            yield {
+                "model": self._model_name,
+                "pk": d.pk,
+                "fields": fields(d)
+            }
+
+    def __len__(self):
+        return 1
+
+
+def batch_save(fname, model_class, model_name):
+    sa = BatchSaveStreamList(
+        model_class=model_class,
+        model_name=model_name
+    )
+    with open(fname, 'w') as f:
+        dump(sa, f, ensure_ascii=False, indent=2)
+
+
+# ---------------------
+
+
+def dump_groups():
+    from group_app.models import Group
+    batch_save("groups.json", Group, 'groupapp.group')
+
+
+def dump_accounts():
+    from accounts_app.models import UserProfile, BaseAccount
+    batch_save('accounts_baseaccount.json', BaseAccount, 'profiles.baseaccount')
+    batch_save('accounts_userprofile.json', UserProfile, 'profiles.userprofile')
+
+
+if __name__ == '__main__':
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'djing.settings')
+    setup()
+    dump_groups()