Reverse for 'evolucion_paciente' with arguments '(5,)' not found. 1 pattern(s) tried: ['evolucion_paciente/(?P<id>[0-9]+)/(?P<id_e>[0-9]+)$']

Question

I have created a view that accepts 3 arguments but I get the following error in the homepage.Reverse for 'evolucion_paciente' with arguments '(5,)' not found. 1 pattern(s) tried: ['evolucion_paciente/(?P[0-9]+)/(?P[0-9]+)$']

Project/views.py -- One of my views

def VerEvoluciones(request, id):
    if request.method == 'GET':
        paciente = Paciente.objects.get(id= id)
        evoluciones = Evolucion.objects.filter(paciente= id).order_by('-fechaEvolucion')
        evolucionForm = EvolucionForm()
    else:
        return redirect('index')

    return render(request, 'evoluciones.html', {'evolucionForm': evolucionForm, "Evoluciones": evoluciones, "Paciente": paciente})

Another View, and the one which im having troubles with

def VerEvolucion(request, id, id_e):
    evolucionForm= None
    evolucion= None
    try:
        if request.method == 'GET':
            paciente = Paciente.objects.get(id= id)
            evolucion = Evolucion.objects.filter(paciente= id).get(id= id_e)
            evolucionForm = EvolucionForm(instance= evolucion)
        else:
            return redirect('index')
    except ObjectDoesNotExist as e:
        error = e
    return render(request, 'evolucion.html', {'evolucionForm': evolucionForm,
                                                    'Evolucion': evolucion,
                                                    'Paciente': paciente,
                                                    'Ver': True})

In my template, the link that i need to redirect me from my firt view to my second one

<a href="{% url 'evolucion_paciente' evolucion.id %}" class="btn btn-warning">Ver</a>

Answer 1

As the errors says, you defined a url pattern like:

evolucion_paciente/(?P<id>[0-9]+)/(?P<id_e>[0-9]+)$

so you need to pass two parameters, one for id and one for id_e. But in your {% url … %}, you only passed one:

{% url 'evolucion_paciente' evolucion.id %}

You need to pass an extra one:

<a href="{% url 'evolucion_paciente' value-for-id evolucion.id %}" class="btn btn-warning">Ver</a>

where you need to fill in value-for-id with the value for id. Probably something like:

<a href="{% url 'evolucion_paciente' evolucion.paciente.id evolucion.id %}" class="btn btn-warning">Ver</a>