Didn't forget to add this time. Thanks merge conflict, actually useful.

nerdshope/admin.py

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+from django.contrib import admin
+
+# Register your models here.
+
+from .models import BankAccount,Payment,OffDate
+admin.site.register(BankAccount)
+admin.site.register(Payment)
+admin.site.register(OffDate)

nerdshope/apps.py

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+from django.apps import AppConfig
+
+
+class NerdshopeConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'nerdshope'

nerdshope/models.py

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+from django.db import models
+from django.utils.timezone import now
+
+# Create your models here.
+class BankAccount(models.Model):
+	name=models.CharField(max_length=100)
+	physical=models.CharField(max_length=100)
+	currency=models.CharField(max_length=5)
+	@property
+	def balance(self): return sum(map(Payment.objects.filter(account=self)))
+	
+	def __str__(self):
+		return str(self.name)+', '+str(self.balance)
+
+class Payment(models.Model):
+	timestamp=models.DateTimeField(default=now)
+	other_party=models.CharField(max_length=100)
+	account=models.ForeignKey(BankAccount, on_delete=models.CASCADE)
+	amount=models.IntegerField(default=0)
+	reason=models.CharField(max_length=200)
+	
+	def __str__(self):
+		return str(self.timestamp)+', '+str(self.amount)+', '+str(self.reason)
+
+class OffDate(models.Model):
+	when=models.DateField(default=now)
+	reason=models.CharField(max_length=50,default="Hall unavailable")
+	
+	def __str__(self):
+		return str(str.when)+': '+str(self.reason)

nerdshope/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

nerdshope/urls.py

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+from django.urls import include, path
+from . import views
+
+urlpatterns = [
+	path('',views.nerdshope,name='shop'),
+]

nerdshope/views.py

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+from django.shortcuts import render
+from rakka.utils import rerender
+from . import models
+from main.models import Update
+
+@rerender
+def nerdshope():
+	accounts=models.BankAccount.objects.all()
+	sums={curr:sum([n.balance for n in filter(lambda x:x.currency==curr,accounts)]) for curr in set(map(lambda x:x.currency,accounts))}
+	moneyblob='</li>\n<li>'.join([f'{k}: {v}' for k,v in sums.items()])
+	moneyblob='Current monetary state: <ul>\n<li>'+moneyblob+'</li>\n</ul>'
+	return {'title':"Nerds' Hope",'content':"Store stuff. TODOing. Will include inventory and budget. <a href='https://facebook.com/nerdshope'>FB</a><br/>\nAddress is 21 Kensington St, Glenorchy<br/>\nOff dates 2022: 29th April, 6th May, 27th May, 17th June, 24th June<br/>\n"+moneyblob,'date':Update.objects.get_or_create(page='nh_main')[0].date}
+
+@rerender
+def budget():
+	pass