Outputting a table to a template - django

Question

I recently began to study Django and cannot understand how to correctly implement the template (table)
I have a model:
She has ties to Company and bank.
class BankAccount(models.Model):
company = models.ForeignKey('Company.Company', null=True, on_delete=models.CASCADE, verbose_name='Фирма',
related_name='company')
bank = models.ForeignKey('Bank', null=True, on_delete=models.CASCADE, verbose_name='Банк', related_name='bank')
login_bank = models.CharField(max_length=255, verbose_name='Логин', null=False)
password_bank = models.CharField(max_length=255, verbose_name='Пароль', null=False)
date_created = models.DateTimeField(auto_now=True)
date_updated = models.DateTimeField(auto_now_add=True)
balance = models.DecimalField(max_digits=15, decimal_places=2, blank=True, null=True)
In the template I want to display a table where all firms / banks will be displayed at the intersection of these columns and rows, a value from this model will appear.
I've been looking for an answer for 5 days and
Company1
Company2
Company3
Company4
Bank1
Balance(Company1/Bank1)
Balance(Company2/Bank1)
Balance(Company/Bank1)
Balance(Company4/Bank1)
Bank2
Balance(Company1/Bank2)
....
....
....
Bank3
Balance(Company1/Bank3)
....
....
....
I tried the example template below, thanks
#Linh Nguyen
<table class="table table-bordered">
<tr>
<th> </th>
{% for company in companies %}
<th>{{ company.name }}</th>
{% endfor %}
</tr>
{% for bank in banks %}
<tr>
<td>{{bank.name}} </td>
{% for company in companies %}
{% for account in bank_accounts %}
{% if account.company_id == company.id and bank.id == account.bank_id %}
<td>{{account}}</td>
{% endif %}
{% endfor %}
{% endfor %}
</tr>
{% endfor %}
</table>
context = {
'companies': Company.objects.all().order_by('id'),
'banks': Bank.objects.all().order_by('id'),
'bank_accounts': BankAccount.objects.all()
}
But the result is still not desired. One firm can have 2 and 4 accounts in the table of accounts (bank_account).
and if the company does not have all 4 accounts, the data no longer match.If you add {% else%}, then the table breaks completely.
screen
<div class="col-md-12">
<div class="row">
<table class="table table-bordered">
<tr>
<th> </th>
{% for company in companies %}
<th>{{ company.name }}</th>
{% endfor %}
</tr>
{% for bank in banks %}
<tr>
<td>{{bank.name}} </td>
{% for company in companies %}
<td>
{% for account in bank_accounts %}
{% if account.company_id == company.id and bank.id == account.bank_id%}
{{account}}
{% endif %}
{% endfor %}
</td>
{% endfor %}
</tr>
{% endfor %}
</table>
</div>
</div>
Finally it worked out!

Answer 1

I think it only come down to how you handle the logic in the looping:
in your view you have the querysets for all the banks, companies and bank accounts
view.py:
context = {
'companies': Company.objects.all(),
'banks': Bank.objects.all(),
'bank_accounts': BankAccount.objects.all()
}
template.html:
<table style="width:100%">
<tr>
{% for company in companies %}
<th>{{ company.name }}</th>
{% endfor %}
</tr>
{% for bank in banks %}
<tr>
{% for company in companies %}
{% for bank_account in bank_accounts %}
<td>
{% if bank_account.company == company %}
Balance({{ company.name }}/{{ bank.name }})
{% endif %}
</td>
{% endfor %}
{% endfor %}
</tr>
{% endfor %}
</table>

Answer 2

First, you should implement your view function like this:
from django.shortcuts import render
from models import BackAccount
def get_bank_accounts(request):
accounts = BankAccount.objects.all()
context = {
'accounts': accounts,
}
return render(request, 'accounts.html', context)
So, that way you send all accounts to the template. And the way you use them in accounts.html like this:
{% for account in accounts %}
{{ account.bank }}
{{ account.company }}
{% endfor %}