I am attempting to set up a website on cookeicutter, I created a new app called "bots" and added a class called Trade within models that lists 2 parameters, "titles" and "units". After migrating and running the server, when I open the admin panel and click on the "+ add" button within the panel to create a trade (see picture). The Django Webpage returns this error:
django.db.utils.ProgrammingError: relation "bot_trade" does not exist
LINE 1: ...."id", "bots_unit"."sell", "bots_unit"."buy" FROM "bots_unit...
Additonal Info: Running my django within a docker with postgreSQL
Models.py
from django.db import models
from datetime import date
#from django.contrib.auth.models import AbstractUser
#from .models import User
from django.urls import reverse
from django.urls import reverse_lazy
from django.conf import settings
import uuid
class Unit(models.Model):
TRADE_UNIT = (
('ETH', 'Ethereum'),
('BTC', 'Bitcoin'),
('LTC', 'Litecoin'),
('IOT', 'IOTA'),
('OMG', 'OmiseGo'),
('BCH', 'BitcoinCash'),
)
sell = models.CharField(max_length=3, choices=TRADE_UNIT, blank=True, default='ETH', help_text='Currency to Sell')
buy = models.CharField(max_length=3, choices=TRADE_UNIT, blank=True, default='BTC', help_text='Currency to Buy')
def get_absolute_url(self):
"""
Returns the url to access a particular author instance.
"""
return reverse('unit-detail', args=[str(self.id)])
def __str__(self):
"""
String for representing the Model object.
"""
return '%s, %s' % (self.sell, self.buy)
class Meta:
db_table = 'bots_unit'
ordering = ['sell','buy']
class Trade(models.Model):
title = models.CharField(max_length=200)
unit = models.ForeignKey('Unit', on_delete=models.SET_NULL, null=True)
def __str__(self):
"""
String for representing the Model object.
"""
return self.title
def get_absolute_url(self):
"""
Returns the url to access a particular book instance.
"""
return reverse('trade-detail', args=[str(self.id)])
class Meta:
db_table = 'bots_trade'
class TradeInstance(models.Model):
"""
Model representing a specific copy of a book (i.e. that can be borrowed from the library).
"""
id = models.UUIDField(primary_key=True, default=uuid.uuid4, help_text="Unique ID for this particular trade across whole database")
trade = models.ForeignKey('Trade', on_delete=models.SET_NULL, null=True)
amount = models.CharField(max_length=200)
price = models.CharField(max_length=200)
imprint = models.CharField(max_length=200)
time_initiated = models.DateTimeField(null=True, blank=True)
#initiator = models.ForeignKey(AbstractUser,
on_delete=models.SET_NULL, null=True, blank=True)
position_status = (
('L', 'Long'),
('S', 'Short'),
)
position = models.CharField(max_length=1, choices=position_status, blank=True, default='L', help_text='Order Type')
class Meta:
ordering = ["position"]
def __str__(self):
"""
String for representing the Model object
"""
return '%s (%s)' % (self.id,self.trade.title)
Admin.py
from django.contrib import admin
from .models import Trade, TradeInstance, Unit
# Define the admin class
@admin.register(Trade)
class TradeAdmin(admin.ModelAdmin):
pass
@admin.register(Unit)
class UnitAdmin(admin.ModelAdmin):
pass
UPDATE1: I deleted the content inside the migrations folder a few times, but this is what is currently inside of '0001.initial.py' after running 'makemigrations' and 'migrate':
# -*- coding: utf-8 -*-
# Generated by Django 1.10.8 on 2017-10-12 17:55
from __future__ import unicode_literals
from django.db import migrations, models
import django.db.models.deletion
import uuid
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='Trade',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('title', models.CharField(max_length=200)),
],
),
migrations.CreateModel(
name='TradeInstance',
fields=[
('id', models.UUIDField(default=uuid.uuid4, help_text='Unique ID for this particular trade across whole database', primary_key=True, serialize=False)),
('amount', models.CharField(max_length=200)),
('price', models.CharField(max_length=200)),
('imprint', models.CharField(max_length=200)),
('time_initiated', models.DateTimeField(blank=True, null=True)),
('position', models.CharField(blank=True, choices=[('L', 'Long'), ('S', 'Short')], default='L', help_text='Order Type', max_length=1)),
('trade', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='bots.Trade')),
],
options={
'ordering': ['position'],
},
),
migrations.CreateModel(
name='Unit',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('sell', models.CharField(blank=True, choices=[('ETH', 'Ethereum'), ('BTC', 'Bitcoin'), ('LTC', 'Litecoin'), ('IOT', 'IOTA'), ('OMG', 'OmiseGo'), ('BCH', 'BitcoinCash')], default='ETH', help_text='Currency to Sell', max_length=3)),
('buy', models.CharField(blank=True, choices=[('ETH', 'Ethereum'), ('BTC', 'Bitcoin'), ('LTC', 'Litecoin'), ('IOT', 'IOTA'), ('OMG', 'OmiseGo'), ('BCH', 'BitcoinCash')], default='BTC', help_text='Currency to Buy', max_length=3)),
],
options={
'ordering': ['sell', 'buy'],
},
),
migrations.AddField(
model_name='trade',
name='unit',
field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='bots.Unit'),
),
]
When I run 'showmigrations':
dominic@dom-Inspiron-7559:~/Desktop/Projects/vickibot/vicki$ docker-compose -focal.yml run django python manage.py showmigrations
Postgres is up - continuing...
account
[X] 0001_initial
[X] 0002_email_max_length
admin
[X] 0001_initial
[X] 0002_logentry_remove_auto_add
auth
[X] 0001_initial
[X] 0002_alter_permission_name_max_length
[X] 0003_alter_user_email_max_length
[X] 0004_alter_user_username_opts
[X] 0005_alter_user_last_login_null
[X] 0006_require_contenttypes_0002
[X] 0007_alter_validators_add_error_messages
[X] 0008_alter_user_username_max_length
bots
[X] 0001_initial
contenttypes
[X] 0001_initial
[X] 0002_remove_content_type_name
sessions
[X] 0001_initial
sites
[X] 0001_initial
[X] 0002_alter_domain_unique
[X] 0003_set_site_domain_and_name
socialaccount
[X] 0001_initial
[X] 0002_token_max_lengths
[X] 0003_extra_data_default_dict
users
[X] 0001_initial
UPDATE2:
'manage.py migrate --fake bots zero' output:
dominic@dom-Inspiron-7559:~/Desktop/Projects/vickibot/vicki$ **docker-compose -f local.yml run django python manage.py migrate --fake bots zero**
Postgres is up - continuing...
Operations to perform:
Unapply all migrations: bots
Running migrations:
Rendering model states... DONE
Unapplying bots.0001_initial... FAKED
'manage.py migrate bots' output:
dominic@dom-Inspiron-7559:~/Desktop/Projects/vickibot/vicki$ docker-compose -f local.yml run django python manage.py migrate bots
Postgres is up - continuing...
Operations to perform:
Apply all migrations: bots
Running migrations:
Applying bots.0001_initial... OK
You probably haven't created any migrations for your bot app. You need to specify the app name to create the initial migrations:
./manage.py makemigrations bot
Then run migrate to run the migration and create the missing table:
./manage migrate
When you run showmigrations, you can see that Django thinks that it has already applied the initial migration for your bots app. This could be because you ran --fake for that app.
bots
[X] 0001_initial
You can tell Django to mark the migrations as unapplied, then rerun the migration with:
manage.py migrate --fake bots zero
manage.py migrate bots
This should work, as long as no tables from the bots app have been created yet. If only some of the tables have been created, then fixing up the database will be much trickier.
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