كيفية برمجة تطبيق محفظة مالية باستخدام Python Django

    Python

from django.db import models
from django.contrib.auth.models import User
from django.utils import timezone

class Account(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    name = models.CharField(max_length=100)
    balance = models.DecimalField(max_digits=15, decimal_places=2, default=0.00)
    created_at = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return f"{self.name} ({self.user.username})"

class Transaction(models.Model):
    TRANSACTION_TYPES = [
        ('income', 'إيداع'),
        ('expense', 'سحب'),
    ]

    account = models.ForeignKey(Account, on_delete=models.CASCADE, related_name='transactions')
    transaction_type = models.CharField(max_length=10, choices=TRANSACTION_TYPES)
    amount = models.DecimalField(max_digits=15, decimal_places=2)
    description = models.CharField(max_length=255, blank=True, null=True)
    transaction_date = models.DateTimeField(default=timezone.now)
    created_at = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return f"{self.get_transaction_type_display()} - {self.amount} ({self.account.name})"

    def save(self, *args, **kwargs):
        if self.transaction_type == 'income':
            self.account.balance += self.amount
        elif self.transaction_type == 'expense':
            self.account.balance -= self.amount
        self.account.save()
        super().save(*args, **kwargs)
  

نسخ

   Python

from django import forms
from .models import Transaction, Account

class AddTransactionForm(forms.ModelForm):
    account = forms.ModelChoiceField(queryset=Account.objects.none())
    transaction_type = forms.ChoiceField(choices=Transaction.TRANSACTION_TYPES)
    amount = forms.DecimalField(max_digits=15, decimal_places=2)
    description = forms.CharField(max_length=255, required=False)
    transaction_date = forms.DateTimeField(widget=forms.DateTimeInput(attrs={'type': 'datetime-local'}))

    class Meta:
        model = Transaction
        fields = ['account', 'transaction_type', 'amount', 'description', 'transaction_date']

    def __init__(self, user, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields['account'].queryset = Account.objects.filter(user=user)
  

نسخ

    Python

from django.shortcuts import render, redirect, get_object_or_404
from .models import Account, Transaction
from .forms import AddTransactionForm
from django.contrib.auth.decorators import login_required

@login_required
def account_list(request):
    accounts = Account.objects.filter(user=request.user)
    return render(request, 'wallet/account_list.html', {'accounts': accounts})

@login_required
def account_detail(request, account_id):
    account = get_object_or_404(Account, id=account_id, user=request.user)
    return render(request, 'wallet/account_detail.html', {'account': account})

@login_required
def add_transaction(request):
    if request.method == 'POST':
        form = AddTransactionForm(request.user, request.POST)
        if form.is_valid():
            transaction = form.save(commit=False)
            transaction.user = request.user # قد لا تحتاجها إذا كان الحساب مرتبطًا بالمستخدم
            transaction.save()
            return redirect('account_list')
    else:
        form = AddTransactionForm(request.user)
    return render(request, 'wallet/add_transaction.html', {'form': form})
  

نسخ

    Python

from django.contrib import admin
from .models import Account, Transaction

@admin.register(Account)
class AccountAdmin(admin.ModelAdmin):
    list_display = ('name', 'user', 'balance', 'created_at')
    list_filter = ('user',)
    search_fields = ('name', 'user__username')

@admin.register(Transaction)
class TransactionAdmin(admin.ModelAdmin):
    list_display = ('account', 'transaction_type', 'amount', 'transaction_date', 'created_at')
    list_filter = ('account', 'transaction_type')
    search_fields = ('description', 'account__name')
  

نسخ