feat(config_management): add configuration groups

!17 #42

app/config_management/models/groups.py

@@ -0,0 +1,88 @@
+from django.db import models
+
+from access.fields import *
+from access.models import TenancyObject
+
+from core.mixin.history_save import SaveHistory
+
+
+
+class GroupsCommonFields(TenancyObject, models.Model):
+
+    class Meta:
+        abstract = True
+
+    id = models.AutoField(
+        primary_key=True,
+        unique=True,
+        blank=False
+    )
+
+    created = AutoCreatedField()
+
+    modified = AutoLastModifiedField()
+
+    def __str__(self):
+
+        return self.name
+
+
+
+class ConfigGroups(GroupsCommonFields, SaveHistory):
+
+
+    parent = models.ForeignKey(
+        'self',
+        on_delete=models.CASCADE,
+        default = None,
+        null = True,
+        blank= True
+    )
+
+
+    name = models.CharField(
+        blank = False,
+        max_length = 50,
+        unique = False,
+    )
+
+
+    config = models.JSONField(
+        blank = True,
+        default = None,
+        null = True,
+    )
+
+
+
+    def count_children(self) -> int:
+        """ Count all child groups recursively
+
+        Returns:
+            int: Total count of ALL child-groups
+        """
+
+        count = 0
+
+        children = ConfigGroups.objects.filter(parent=self.pk)
+
+        for child in children.all():
+
+            count += 1
+
+            count += child.count_children()
+
+        return count
+
+
+
+    def save(self, *args, **kwargs):
+
+        self.is_global = False
+
+        if self.parent:
+            self.organization = ConfigGroups.objects.get(id=self.parent.id).organization
+
+        super().save(*args, **kwargs)
+
+