How to fix djangos's decotators Error: Wrapped class must subclass ModelAdmin

Question

I have been whriten API for my app. End when I to start servver terminal cought this: File "/home/user/MyProjects/forest-venv/forest/logginsite/admin.py", line 11, in class LScharacteristicAdmin(DynamicRawIDMixin): File "/home/user/MyProjects/forest-venv/lib/python3.5/site-packages/django/contrib/admin/decorators.py", line 25, in _model_admin_wrapper raise ValueError('Wrapped class must subclass ModelAdmin.) ValueError: Wrapped class must subclass ModelAdmin. `I'm new with django... How to fix that?

Are depended part of my project:

admin.py:

from django.contrib.gis import admin
from .models import *
from dynamic_raw_id.admin import DynamicRawIDMixin

class DefaultGeoAdmin(admin.OSMGeoAdmin):
    search_fields = ['code', 'name']
    display_wkt = True
    save_on_top = True

@admin.register(LScharacteristic)
class LScharacteristicAdmin(DynamicRawIDMixin):
    list_display = ('code', 'codeLS', 'track', 'task','totalarea','explarea','protecttype' )
    dynamic_raw_id_fields = ('codeLS', )
    model = LScharacteristic

models.py:

    from django.db import models
    from django.utils.translation import ugettext_lazy as _
    from renter.models import RefAbstract, Renter
    from django.contrib.gis.db import models

    class Unit(RefAbstract):
        class Meta(RefAbstract.Meta):
            verbose_name = 'nameunit'
            verbose_name_plural = 'namesofunits'
    
    class ManageType(RefAbstract):
        class Meta(RefAbstract.Meta):
            verbose_name = 'type'
            verbose_name_plural = 'types'
    
    class CutareaShape(RefAbstract):
        class Meta(RefAbstract.Meta):
            verbose_name = 'cut'
            verbose_name_plural = 'cuts'
            
    class CutareaType(models.Model):
        name = models.TextField('name', max_length=500)
        
        def __str__(self):
            return shorten(self.name, width=60)
        
        class Meta:
            verbose_name = 'cut2'
            verbose_name_plural = 'cuts2'
    
    class Composition(RefAbstract):
        class Meta(RefAbstract.Meta):
            verbose_name = 'set'
            verbose_name_plural = 'sets'
    
    class Assortment(RefAbstract):
        class Meta(RefAbstract.Meta):
            verbose_name = 'assort'
            verbose_name_plural = 'assorts'
    class CodeLS(RefAbstract):
        class Meta(RefAbstract.Meta):
            verbose_name = 'area'
            verbose_name_plural = 'areas'
    
    class LScharacteristic(models.Model):
        code = models.IntegerField( help_text='number')
        codeLS = models.ForeignKey(CodeLS, on_delete=models.DO_NOTHING, verbose_name='id area')           
        task = models.CharField(max_length = 100, help_text ='task')
        totalrea = models.PositiveIntegerField(help_text = 'totarea')
        explarea = models.PositiveIntegerField(help_text = 'explarea')
        protecttype = models.CharField(max_length = 50, help_text = 'protecttype')
    
class PlannedUsing(models.Model):
        #...some variables
        
class Spatial(models.Model):
        #...some variables

I don't understand why django throw it. This admin.py file was created like another admin.py, witch will work in app.

please show us some code (just the relevant part(s)), and the full traceback of the error — Robin Zigmond, Jan 29 '19 at 09:25
@RobinZigmond sorry! I thought that this error is something the a certain. I added code now — Tyomik_mnemonic, Jan 29 '19 at 09:56
I just had a glance at the plugin you're using: https://github.com/lincolnloop/django-dynamic-raw-id/blob/master/README.rst - I'm not familiar with it, but it appears to me that your error is not inheriting from `admin.ModelAdmin` in the class you're decorating. Try `class LScharacteristicAdmin(admin.ModelAdmin, DynamicRawIDMixin):` instead — Robin Zigmond, Jan 29 '19 at 10:01

score 2 · Answer 1 · edited May 23 '22 at 10:46

2

The problem lies here class LScharacteristicAdmin(DynamicRawIDMixin)

it should be inheriting from admin.ModelAdmin so rewrite it like this

class LScharacteristicAdmin(admin.ModelAdmin)

Hopefully, that should solve the error you are getting

edited May 23 '22 at 10:46

TarangP

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answered Jan 03 '20 at 12:36

Micheal N.D

410
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score 0 · Answer 2 · answered Dec 08 '22 at 00:54

I got the same error:

ValueError: Wrapped class must subclass ModelAdmin.

When putting admin.TabularInline or admin.StackedInline for the admin registration as shown below:

from django.contrib import admin
from .models import Person

@admin.register(Person) # ↓ Here
class PersonAdmin(admin.TabularInline):
    pass

from django.contrib import admin
from .models import Person

@admin.register(Person) # ↓ Here
class PersonAdmin(admin.StackedInline):
    pass

So, I replaced them with admin.ModelAdmin as shown below, then the error was solved:

from django.contrib import admin
from .models import Person

@admin.register(Person) # ↓ Here
class PersonAdmin(admin.ModelAdmin):
    pass

from django.contrib import admin
from .models import Person

@admin.register(Person) # ↓ Here
class PersonAdmin(admin.ModelAdmin):
    pass

How to fix djangos's decotators Error: Wrapped class must subclass ModelAdmin

2 Answers2