On Monday, September 28, 2015 at 6:56:42 PM UTC-4, Rolston Jeremiah wrote:
>
> Hello,
>
> I am new to Python and Django so please bear with me.
>
> I have created a model(below) and would now like to access
> from the admin interface. As per instructions I found on the
> django site (Part 2 tutorial version 1.8.4)
>
>
> model
>
> ///////////////////////////////////////////////////////////////////////////////////////////////////////
>
> class Genus(models.Model):
> genus_id = models.AutoField(primary_key=True),
> scientific_genus = models.CharField(max_length=32),
> common_name = models.CharField(max_length=32),
> common_examples = models.TextField(),
> genus_choices = (
> ('Member Banana...','Musa'),
> ('Mango...','Magnifera'),
> ('Avocado...','Persea Americana'),
> ('Soursop, Custard, Sugar Apple...','Annona Reticulata'),
> ('Ginger, Tumeric ...','Zingiber Officinale Roscoe'),
> ('Persimmon....','Diospyros'),
> ('Breadfruit...','Artocarpus Altilis'),
> ('Cherry ...','Prunus'),
> ('Grapes ...','Vitis'),
> ('Tomato ...','Lycopersicon'),
> ('EggPlant ...','????????'),
> ('Onion, Garlic ...','Allium'),
> ('Cashew ...','Anacardium'),
> ('Rice ...','Oryza'),
> ('Pepper ...','Capsicum'),
> ('Orange,Lemon, Lime ....','Citrus')
> ),
> image_url = models.CharField(max_length=128),
> genus = models.CharField(max_length=32,choices=genus_choices),
> description = models.TextField()
>
>
> I edit "admin.py" so that it now looks like
>
>
> admin.py
>
> //////////////////////////////////////////////////////////////////////////////////////////////////
>
> from django.contrib import admin
> from cfxBase.models import Genus
> # Register your models here.
>
>
> class GenusAdmin(admin.ModelAdmin):
> fields = [
> 'genus',
> 'scientific_genus',
> 'common_name',
> 'description',
> 'common_examples',
> 'image_url'
> ]
>
> admin.site.register(Genus, GenusAdmin)
>
>
>
> ////////////////////////////////////////////////////////////////////////////////////////////////////////////////
>
> Now when I attempt the admin page add entry for Genus I am getting this
> error:
>
>
> FieldError at /admin/cfxBase/genus/add/
>
> Unknown field(s) (scientific_genus, genus, common_name, common_examples,
>
> description, image_url) specified for Genus.
>
>
> Check fields/fieldsets/exclude attributes of class GenusAdmi
>
>
>
> Your help will be greatly appreciated
>
>
>
>
> Hello Polonkai,
>
Much thanks for responding to my cry for help! I will make the
suggested changes and correctionns. Thanks much.
Actually, I did adhere to Django's typical workflow as you hinted to:
python manage.py makemigrations
python manage.py migrate
But when I examined the 0001_initial.py file in the migrations folder:
from django.db import models, migrations
class Migration(migrations.Migration):
dependencies = [
]
operations = [
migrations.CreateModel(
name='ActiveContracts',
fields=[
('id', models.AutoField(serialize=False, verbose_name='ID',
primary_key=True, auto_created=True)),
],
),
migrations.CreateModel(
name='AddressBook',
fields=[
('id', models.AutoField(serialize=False, verbose_name='ID',
primary_key=True, auto_created=True)),
],
),
migrations.CreateModel(
name='Agents',
fields=[
('id', models.AutoField(serialize=False, verbose_name='ID',
primary_key=True, auto_created=True)),
],
),
migrations.CreateModel(
name='ArchivedContracts',
fields=[
('id', models.AutoField(serialize=False, verbose_name='ID',
primary_key=True, auto_created=True)),
],
),
migrations.CreateModel(
name='Genus',
fields=[
('id', models.AutoField(serialize=False, verbose_name='ID',
primary_key=True, auto_created=True)),
],
),
migrations.CreateModel(
name='ManagementUnits',
fields=[
('id', models.AutoField(serialize=False, verbose_name='ID',
primary_key=True, auto_created=True)),
],
),
migrations.CreateModel(
name='ProductionUnits',
fields=[
('id', models.AutoField(serialize=False, verbose_name='ID',
primary_key=True, auto_created=True)),
],
),
migrations.CreateModel(
name='Products',
fields=[
('id', models.AutoField(serialize=False, verbose_name='ID',
primary_key=True, auto_created=True)),
],
),
migrations.CreateModel(
name='SoilProfiles',
fields=[
('id', models.AutoField(serialize=False, verbose_name='ID',
primary_key=True, auto_created=True)),
('comment', models.TextField(default='Not provided')),
],
),
]
ONLY the id field is being auto-generated. As my-level of Django skiils I
am not
sure how identify the source of the problem. The models have correct names
so manage.py is "model-aware (assume correct env setup)". I was looking
here (https://realpython.com/blog/python/digging-deeper-into-migrations)
for more info on
migration and was considering to edit migration file to setup the
database tables. BUT
I AM NOT CLEAR ON THE IMPLICATIONS GOING FORWARD FOR ADMIN INTERFACE
and so. I shall see where this path leads to - hopefully a solution and a
deeper understanding of
the Django framework.
Rjae
regards
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