# Cant Understand The topic
**URL:** https://forum.codewithmosh.com/t/cant-understand-the-topic/24752
**Category:** Django
**Created:** [January 24, 2024, 11:26pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752 "2024-01-24T23:26:49Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 24, 2024, 11:26pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/1 "2024-01-24T23:26:49Z")
I cant seem to understand The django part on the 6hrs course free on YT and im stuck there any help please??
---
### Author:  [@lucidlear](https://forum.codewithmosh.com/u/lucidlear)
#### Post date: [January 24, 2024, 11:30pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/2 "2024-01-24T23:30:52Z")
What specific django part do you not understand?
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### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 24, 2024, 11:37pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/3 "2024-01-24T23:37:30Z")
i’ll just say from the beginning the django course started on the 6hr YT free course
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### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 25, 2024, 9:28am UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/4 "2024-01-25T09:28:39Z")
I keep having this error whenever i want to add a new product to my django admin
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### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 25, 2024, 11:08am UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/5 "2024-01-25T11:08:56Z")
Help Im stuck with the django admin Stuff
i was trying to add product through the django admin and it just pop up with some code error
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### Author:  [@lucidlear](https://forum.codewithmosh.com/u/lucidlear)
#### Post date: [January 25, 2024, 7:09pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/6 "2024-01-25T19:09:01Z")
Hi see this [thread](https://forum.codewithmosh.com/t/no-such-table-main-auth-user-old/2415) you may need to upgrade your version of django
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### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 25, 2024, 8:51pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/7 "2024-01-25T20:51:40Z")
i already found a way to do that now im stuck with another problem
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### Author:  [@lucidlear](https://forum.codewithmosh.com/u/lucidlear)
#### Post date: [January 25, 2024, 9:00pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/8 "2024-01-25T21:00:54Z")
> [@Energy](#):
>
> Help Im stuck with the django admin Stuff
> i was trying to add product through the django admin and it just pop up with some code error
Feel free to post a screenshot of the error you are facing
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### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 25, 2024, 9:04pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/9 "2024-01-25T21:04:29Z")
I already got over the problem I just had upgrade my django version then run server and migrate
Now im facing another issue with this"
ERRORS:
\: (admin.E108) The value of ‘list\_display[0]’ refers to ‘offer’, whi
ch is not a callable, an attribute of ‘OfferAdmin’, or an attribute or method on ‘products.Offer’.
WARNINGS:
products.Offer: (models.W042) Auto-created primary key used when not defining a primary key type, by de
fault ‘django.db.models.AutoField’.
HINT: Configure the DEFAULT\_AUTO\_FIELD setting or the ProductsConfig.default\_auto\_field attribu
te to point to a subclass of AutoField, e.g. ‘django.db.models.BigAutoField’.
products.Product: (models.W042) Auto-created primary key used when not defining a primary key type, by
default ‘django.db.models.AutoField’.
HINT: Configure the DEFAULT\_AUTO\_FIELD setting or the ProductsConfig.default\_auto\_field attribu
te to point to a subclass of AutoField, e.g. ‘django.db.models.BigAutoField’.
System check identified 3 issues (0 silenced)." thats the issue
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### Author:  [@lucidlear](https://forum.codewithmosh.com/u/lucidlear)
#### Post date: [January 25, 2024, 9:11pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/10 "2024-01-25T21:11:25Z")
Check the value of `list_display` in your `OfferAdmin` class there is something malformed there
ie:
```auto
# products/admin.py
class OfferAdmin(admin.ModelAdmin):
list_display = ('check_this', 'other_field', ...)
```
where it says check this, make sure the syntax is right
The other one is a warning and your code will run
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### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 25, 2024, 9:15pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/11 "2024-01-25T21:15:44Z")
The syntax is correct there is no error in the value in list\_display
This is the code "from django.contrib import admin
from . models import Product, Offer
class OfferAdmin(admin.ModelAdmin):
list\_display = (‘Code’, ‘discount’ )
class ProductAdmin(admin.ModelAdmin):
list\_display = (‘name’, ‘price’,‘stock’ )
admin.site.register(Offer, OfferAdmin)
admin.site.register(Product, ProductAdmin)"
So Far no error
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### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 25, 2024, 9:18pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/12 "2024-01-25T21:18:56Z")
I was stuck with this before File “”, line 219, in \_call\_with\_frames\_removed
File “C:\Users\Admin\Desktop\Afresh\products\admin.py”, line 3, in
from . models import Product, Offer
ImportError: cannot import name ‘Offer’ from ‘products.models’ (C:\Users\Admin\Desktop\Afresh\products
models.py)
then i called an offer class in models then the error stopped with 0 issues
after Calling the class it started with 3 issues
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### Author:  [@lucidlear](https://forum.codewithmosh.com/u/lucidlear)
#### Post date: [January 25, 2024, 9:26pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/13 "2024-01-25T21:26:03Z")
`list_display = (‘Code’, ‘discount’ )`
here code is uppercase, but mosh saves as lower case in the model and in admin
```auto
ImportError: cannot import name ‘Offer’ from ‘products.models’
```
check the models file is in the same folder as your admin file and the naming is the same
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### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 25, 2024, 9:33pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/14 "2024-01-25T21:33:32Z")
Even after calling it in the model like this “class offer(models.Model):
code = models.CharField
discount = models.CharField”
Still dosent work
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### Author:  [@lucidlear](https://forum.codewithmosh.com/u/lucidlear)
#### Post date: [January 25, 2024, 9:54pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/15 "2024-01-25T21:54:38Z")
Change ‘offer’ to ‘Offer’ so looks like below because your importing into your admin file as ‘Offer’ so you need to name your class the same
```auto
class Offer(models.Model):
code = models.CharField
discount = models.CharField”
```
---
### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 25, 2024, 10:24pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/16 "2024-01-25T22:24:07Z")
Bro still getting the same error 3issues
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### Author:  [@lucidlear](https://forum.codewithmosh.com/u/lucidlear)
#### Post date: [January 25, 2024, 10:30pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/17 "2024-01-25T22:30:24Z")
ok its easier if you post your code and the errors you receiving if you can
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### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 25, 2024, 10:36pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/18 "2024-01-25T22:36:38Z")
MY ADMIN code" from django.contrib import admin
from . models import Product, Offer
class OfferAdmin(admin.ModelAdmin):
list\_display = (‘code’, ‘Discount’)
class ProductAdmin(admin.ModelAdmin):
list\_display = (‘name’, ‘price’,‘stock’ )
admin.site.register(Offer, OfferAdmin)
admin.site.register(Product, ProductAdmin)"
My Model code :
from django.db import models
class Product(models.Model):
name = models.CharField(max\_length=255)
price = models.FloatField()
stock = models.IntegerField()
image\_url = models.CharField(max\_length=2083)
class Offer(models.Model):
code = models.CharField
discount = models.CharField
The Error
WARNINGS:
products.Offer: (models.W042) Auto-created primary ke
y used when not defining a primary key type, by defau
lt ‘django.db.models.AutoField’.
HINT: Configure the DEFAULT\_AUTO\_FIELD settin
g or the ProductsConfig.default\_auto\_field attribute
to point to a subclass of AutoField, e.g. ‘django.db.
models.BigAutoField’.
products.Product: (models.W042) Auto-created primary
key used when not defining a primary key type, by def
ault ‘django.db.models.AutoField’.
HINT: Configure the DEFAULT\_AUTO\_FIELD settin
g or the ProductsConfig.default\_auto\_field attribute to point to a subclas
s of AutoField, e.g. ‘django.db.models.BigAutoField’.
System check identified 3 issues (0 silenced).
This is the whole thing
---
### Author:  [@lucidlear](https://forum.codewithmosh.com/u/lucidlear)
#### Post date: [January 25, 2024, 11:21pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/19 "2024-01-25T23:21:04Z")
Make sure you have this line in your settings.py file
```auto
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
```
You need to also specify a `max_length` parameter for your Charfields ie:
```auto
class Offer(models.Model):
code = models.CharField(max_length=255) # Specify the max length for CharField
discount = models.CharField(max_length=255) # Specify the max length for CharField
```
be sure to double check your indentation is also applied properly after the colon in your classes
---
### Author:  [@Energy](https://forum.codewithmosh.com/u/Energy)
#### Post date: [January 27, 2024, 3:04pm UTC](https://forum.codewithmosh.com/t/cant-understand-the-topic/24752/20 "2024-01-27T15:04:56Z")
Where exactly in the settings.py file should it be
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