perf(assets): 优化节点树

修改树策略，做读优化，写的速度降低

apps/perms/migrations/0013_rebuildusertreetask_usergrantedmappingnode.py

@@ -0,0 +1,53 @@
+# Generated by Django 2.2.13 on 2020-09-07 08:40
+
+import assets.models.node
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('assets', '0057_fill_node_value_assets_amount_and_parent_key'),
+        ('perms', '0012_k8sapppermission'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='UserGrantedMappingNode',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Created by')),
+                ('updated_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Updated by')),
+                ('date_created', models.DateTimeField(auto_now_add=True, null=True, verbose_name='Date created')),
+                ('date_updated', models.DateTimeField(auto_now=True, verbose_name='Date updated')),
+                ('key', models.CharField(db_index=True, max_length=64, verbose_name='Key')),
+                ('granted', models.BooleanField(db_index=True, default=False)),
+                ('asset_granted', models.BooleanField(db_index=True, default=False)),
+                ('parent_key', models.CharField(db_index=True, default='', max_length=64, verbose_name='Parent key')),
+                ('assets_amount', models.IntegerField(default=0)),
+                ('node', models.ForeignKey(db_constraint=False, default=None, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='mapping_nodes', to='assets.Node')),
+                ('user', models.ForeignKey(db_constraint=False, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'abstract': False,
+            },
+            bases=(assets.models.node.FamilyMixin, models.Model),
+        ),
+        migrations.CreateModel(
+            name='RebuildUserTreeTask',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Created by')),
+                ('updated_by', models.CharField(blank=True, max_length=32, null=True, verbose_name='Updated by')),
+                ('date_created', models.DateTimeField(auto_now_add=True, null=True, verbose_name='Date created')),
+                ('date_updated', models.DateTimeField(auto_now=True, verbose_name='Date updated')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL, verbose_name='User')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+    ]

apps/perms/migrations/0014_build_users_perm_tree.py

@@ -0,0 +1,27 @@
+# Generated by Django 2.2.13 on 2020-08-21 08:20
+
+from django.db import migrations
+from perms.tasks import dispatch_mapping_node_tasks
+
+
+def start_build_users_perm_tree_task(apps, schema_editor):
+    User = apps.get_model('users', 'User')
+    RebuildUserTreeTask = apps.get_model('perms', 'RebuildUserTreeTask')
+
+    user_ids = User.objects.all().values_list('id', flat=True).distinct()
+    RebuildUserTreeTask.objects.bulk_create(
+        [RebuildUserTreeTask(user_id=i) for i in user_ids]
+    )
+
+    dispatch_mapping_node_tasks.delay()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('perms', '0013_rebuildusertreetask_usergrantedmappingnode'),
+    ]
+
+    operations = [
+        migrations.RunPython(start_build_users_perm_tree_task)
+    ]