move the DeviceManufacturer class to companies.py

network_inventory/inventory/models/__init__.py

@@ -1,13 +1,12 @@
 from .backup import Backup, BackupMethod, TargetDevice
 from .calendar import DayOfMonth, Month, Weekday
 from .category import Category
-from .companies import Company, Customer, Owner
+from .companies import Company, Customer, DeviceManufacturer, Owner
 from .computer import (Computer, ComputerCpuRelation, ComputerDiskRelation,
                        ComputerRamRelation, RaidInComputer,
                        ComputerSoftwareRelation)
 from .cpu import CpuArchitecture, CpuManufacturer, Cpu
-from .devices import (DeviceCategory, Device, ConnectedDevice, DeviceInNet,
-                      DeviceManufacturer)
+from .devices import (DeviceCategory, Device, ConnectedDevice, DeviceInNet)
 from .disk import DiskType, Disk
 from .groups import Group, AdGroup, MailGroup
 from .location import Location

network_inventory/inventory/models/companies.py

@@ -21,3 +21,9 @@ class Customer(Company):
 
     def __str__(self):
         return self.name
+
+
+class DeviceManufacturer(Company):
+
+    class Meta:
+        verbose_name_plural = "Device Manufacturers"

network_inventory/inventory/models/devices.py

@@ -1,17 +1,11 @@
 from django.db import models
 from .category import Category
-from .companies import Company, Customer, Owner
+from .companies import Customer, Owner, DeviceManufacturer
 from .location import Location
 from .user import User
 from .net import Net, IpStatus
 
 
-class DeviceManufacturer(Company):
-
-    class Meta:
-        verbose_name_plural = "Device Manufacturers"
-
-
 class DeviceCategory(Category):
 
     class Meta: