Displaying Nested ManyToMany Relation - django

Question

I'm having nested many to many relation in my models.py and I've got the display partially working. I have 2 questions:
Is there a way to simplify the presentation, e.g. by inlineformset?
How to I access nested context variables in the template form (see line {% for objective in selected_objectives %} )?
Please let me know if there is a way to make my question more clear
models.py
class Process(models.Model):
title = models.CharField(max_length=200)
desc = models.TextField('process description', blank=True)
def __str__(self):
return self.title
class Objective(models.Model):
process = models.ManyToManyField(Process, verbose_name="related processes", blank=False)
title = models.CharField(max_length=200)
desc = models.TextField('objective description', blank=True)
def __str__(self):
return self.title
class Risk(models.Model):
objective = models.ManyToManyField(Objective, verbose_name="related objectives", blank=False)
title = models.CharField(max_length=200)
desc = models.TextField('risk description', blank=True)
def __str__(self):
return self.title
views.py
#login_required
def detailed_list(request):
#context = RequestContext(request)
obj = []
ri = []
all_processes = Process.objects.order_by('id') #[:1]
for p_index,p in enumerate(all_processes):
obj.append(p.objective_set.all()) #appending objectives for each process
for o_index,o in enumerate(obj[p_index]):
ri.append(o.risk_set.all().values()) #appending risks for each objective
context = {'all_processes': all_processes,
'selected_objectives': obj,
'selected_risks': ri
}
return render(request, 'repository/detailed.html', context)
template detailed.html
<p>Create new Process
</p>
{% if all_processes %}
No: {{ all_processes|length }}
<ul>
{% for process in all_processes %}
<li>{{ process.title }} {{ forloop.counter0 }}</li>
<ul>
{% if selected_objectives %}
{% for objective in selected_objectives %}
<!-- see here --> <li>{{ objective.title }} {{ forloop.counter0 }} - {{ objective.desc }}</li>
{% endfor %}
{% else %}
<p>No objectives are available.</p>
{% endif %}
</ul>
{% endfor %}
</ul>
{% else %}
<p>No processes are available.</p>
{% endif %}

Answer 1

all you have to do is just pass the Process object as the context to your template
context = {'all_processes': all_processes}
and in you template :
<p>Create new Process
</p>
{% if all_processes %}
No: {{ all_processes|length }}
<ul>
{% for process in all_processes %}
<li>{{ process.title }} {{ forloop.counter0 }}</li>
<ul>
{% if all_processes.objective_set.all %}
{% for objective in all_processes.objective_set.all %}
<li>{{ objective.title }} {{ forloop.counter0 }} - {{ objective.desc }}
</li>
{% endfor %}
{% else %}
<p>No objectives are available.</p>
{% endif %}
</ul>
{% endfor %}
</ul>
{% else %}
<p>No processes are available.</p>
{% endif %}
<!-- this is if you want to show risks -->
{% for process in all_processes %}
{% for objective in all_processes.objective_set.all %}
{% for risk in objective.risk_set.all %}
{{ risk.desc }}
{% endfor %}
{% endfor %}
{% endfor %}
I hope this is what you were expecting !