# views.py
from django.shortcuts import render, redirect
from .models import Person, BinaryTree
def create_person(request):
if request.method == 'POST':
name = request.POST.get('name')
account = float(request.POST.get('account'))
referral_id = request.POST.get('referral')
referral = None
if referral_id:
referral = Person.objects.get(id=referral_id)
person = Person.objects.create(name=name, account=account,
referral=referral)
# Update binary tree structure
if referral:
binary_tree = BinaryTree.objects.get(parent=referral)
if not binary_tree.left_child:
binary_tree.left_child = person
elif not binary_tree.right_child:
binary_tree.right_child = person
binary_tree.save()
# Calculate and update referral bonus
referral_bonus = account * 0.1
referral.account += referral_bonus
referral.save()
return redirect('person_detail', person_id=person.id)
else:
persons = Person.objects.all()
return render(request, 'create_person.html', {'persons': persons})
# models.py
from django.db import models
class Person(models.Model):
name = models.CharField(max_length=100)
account = models.DecimalField(max_digits=10, decimal_places=2)
referral = models.ForeignKey('self', on_delete=models.SET_NULL,
null=True, blank=True)
class BinaryTree(models.Model):
parent = models.ForeignKey(Person, on_delete=models.CASCADE,
related_name='binary_tree_parent')
left_child = models.ForeignKey(Person, on_delete=models.CASCADE,
related_name='binary_tree_left_child', null=True, blank=True)
right_child = models.ForeignKey(Person, on_delete=models.CASCADE,
related_name='binary_tree_right_child', null=True, blank=True)
Create_person.html
<!DOCTYPE html>
<html>
<head>
<title>Create Person</title>
</head>
<body>
<h1>Create Person</h1>
<form method="post">
{% csrf_token %}
<label for="name">Name:</label>
<input type="text" name="name" required><br><br>
<label for="account">Account Balance:</label>
<input type="number" name="account" step="0.01" required><br><br>
<label for="referral">Referral:</label>
<select name="referral">
<option value="">None</option>
{% for person in persons %}
<option value="{{ person.id }}">{{ person.name }}</option>
{% endfor %}
</select><br><br>
<input type="submit" value="Create">
</form>
</body>
</html>
Or follow me @ GitHub.com/developer-felix I post more codes on federals
On Thu, Jun 15, 2023, 11:16 AM John Ayodele <ayodelejoh...@gmail.com> wrote:
> Hi Everyone!
> So I want to know how to implement a binary tree to a web app.
> This is how the app works:
>
> — Person A opens an account
> — Person A refers to people
> — Person B invests,
> — Person A get 10% of Person B's investment
> So it goes on iteratively.
>
> Please, how can I implement this in Django?
>
> I've never done something like this before, so it's new to me.
>
> Help me accomplish this task by assisting me in any way you can. :)
>
> --
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> <https://groups.google.com/d/msgid/django-users/CAP7pJ3j3942AExQzHwvpxO1c0Zgspw4NCvHqaw6CcgzEfQeRLw%40mail.gmail.com?utm_medium=email&utm_source=footer>
> .
>
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