Galaxy-Level Procedural Content Generation Project

Your project combining Django, Channels, Rust, and BabylonJS for procedural galaxy generation sounds fascinating! The tech stack you've chosen is well-suited for this kind of computationally intensive work:

• Django + Channels: Great choice for handling the async communication needed for real-time updates
• Rust: Excellent for the performance-critical procedural generation algorithms
• BabylonJS: Solid option for the 3D visualization of star systems

The approach of using Rust for the computationally intensive parts while leveraging Django's ecosystem for the web interface is particularly clever.

Some questions that might help provide more specific feedback:

1. How are you handling the integration between Django and Rust?
2. What's your approach to persisting the procedurally generated content?
3. Are you using WebSockets through Channels to stream generation updates?
4. What challenges have you encountered with the 3D visualization so far?

Looking forward to seeing how your project evolves, especially the 3D explorer for star systems and the procedural generation of celestial bodies!

Fixing the Many-to-Many Form Issue in Django

You've identified the core issue correctly. When you filter the queryset in the form to show only the current user's official, but then save the form with save_m2m(), Django is replacing the entire set of related officials with just the ones from your filtered queryset.

The Problem

In a ModelForm for a many-to-many field, when you call save_m2m(), Django replaces all existing relationships with the ones selected in the form. Since your form only shows (and can only select) the current user's official, all other officials' associations are being removed.

Solution

Instead of using a ModelForm to handle this relationship, you should manually manage the many-to-many relationship for just the current user's official. Here's how to modify your code:

Updated View

PYTHONCopied
def GameDetail(request, slug):
    game = officials_models.Game.objects.get(slug=slug)
    current_official = request.user.official
    
    if request.method == "POST" and current_official:
        # Check if the checkbox was selected (official wants to participate)
        is_interested = request.POST.get('is_interested', False) == 'on'
        
        if is_interested:
            # Add the official to the game if not already added
            game.game_official_options.add(current_official)
        else:
            # Remove the official from the game
            game.game_official_options.remove(current_official)
            
        return HttpResponseRedirect(request.path_info)
    
    # Check if the current official is already associated with this game
    is_interested = False
    if current_official:
        is_interested = game.game_official_options.filter(id=current_official.id).exists()
    
    context = {
        'game': game,
        'is_interested': is_interested
    }
    return render(request, 'officials/game.html', context)

Updated Template

HTMLCopied
{% if user.official %}
<form method="post">
  {% csrf_token %}
  <p>
    <label for="is_interested">Check if you are interested in participating in this game:</label>
    <input type="checkbox" name="is_interested" id="is_interested" {% if is_interested %}checked{% endif %}>
  </p>
  <input type="submit" value="Change your interest status" onclick="return confirm('Your choice is saved.')">
</form>
{% endif %}

Alternative Approach

If you prefer to keep using forms, you can create a custom form that doesn't use ModelForm but instead handles the specific relationship:

PYTHONCopied
class GameInterestForm(forms.Form):
    is_interested = forms.BooleanField(
        required=False,
        label="Check if you are interested in participating in this game"
    )
    
    def __init__(self, game, official, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.game = game
        self.official = official
        # Set initial value based on whether the official is already associated
        self.fields['is_interested'].initial = game.game_official_options.filter(id=official.id).exists()
    
    def save(self):
        is_interested = self.cleaned_data['is_interested']
        if is_interested:
            self.game.game_official_options.add(self.official)
        else:
            self.game.game_official_options.remove(self.official)

Then update your view:

PYTHONCopied
def GameDetail(request, slug):
    game = officials_models.Game.objects.get(slug=slug)
    current_official = getattr(request.user, 'official', None)
    
    if request.method == "POST" and current_official:
        form = officials_forms.GameInterestForm(game, current_official, request.POST)
        if form.is_valid():
            form.save()
            return HttpResponseRedirect(request.path_info)
    else:
        form = officials_forms.GameInterestForm(game, current_official) if current_official else None
    
    context = {'form': form, 'game': game}
    return render(request, 'officials/game.html', context)

This approach ensures you're only modifying the relationship for the current official without affecting any other officials' relationships with the game.