Set instances of a Form without the User input - python-3.x

Question

I am trying to set an instance of a Modelform that render through ListView.
Program Model:
class Program(models.Model):
patient = models.ForeignKey(User, on_delete=models.CASCADE, default=0)
program_name = models.CharField(max_length=1000, default="")
date_posted = models.DateTimeField(default=timezone.now)
def __str__(self):
return str(self.id) + " - " + self.patient.username + " - " + self.program_name + " - " + str(self.date_posted)
def get_absolute_url(self):
return reverse('program-detail', kwargs={'pk': self.pk})
Exercise Model:
class Exercise(models.Model):
program = models.ForeignKey(Program, on_delete=models.CASCADE, default=0)
date_posted = models.DateTimeField(default=timezone.now)
name = models.CharField(max_length=1000, default="")
description = models.TextField(default="")
load_share = models.TextField(default="")
breath_method = models.TextField(default="")
recovery_method = models.TextField(default="")
measure_method = models.TextField(default="")
notes = models.TextField(default="")
extra_info = models.TextField(default="")
reps = models.PositiveSmallIntegerField(default=0)
sets = models.PositiveSmallIntegerField(default=0)
def __str__(self):
return str(self.program_id) + " - " + str(self.pk) + " - " + " - " + self.name + " - " + str(self.date_posted)
Data Model:
exercise = models.ForeignKey(Exercise, on_delete=models.CASCADE, default="0")
set_number = models.PositiveSmallIntegerField(default=0)
spo2 = models.PositiveSmallIntegerField(default=0)
hr = models.PositiveSmallIntegerField(default=0)
physical_level = models.PositiveSmallIntegerField(default=0)
breath_level = models.PositiveSmallIntegerField(default=0)
sys = models.PositiveSmallIntegerField(default=0)
dia = models.PositiveSmallIntegerField(default=0)
misc_input = models.PositiveSmallIntegerField(default=0)
def __str__(self):
return self.exercise.name
My Exercise listView include the Data form that the User need to fill up, It is paginated to 1 exercise per page.
Exercise ListView:
# Exercise list inside each program + Data form
class ExerciseListView(LoginRequiredMixin, FormMixin, ListView):
model = Exercise
context_object_name = 'exercises'
form_class = DataForm
paginate_by = 1
def get_queryset(self):
program_num = get_object_or_404(Program, pk=self.kwargs.get('pk'))
return Exercise.objects.filter(program=program_num)
def form_valid(self, dataform):
program_num = get_object_or_404(Program, pk=self.kwargs.get('pk'))
exercises = Exercise.objects.filter(program=program_num)
for exe in exercises:
dataform.instance.exercise = exe.pk
print(dataform.instance.exercise)
return super(ExerciseListView, self).form_valid(dataform)
# Submit the Data form and redirect to the same page exercise
def add_data(request):
page = request.GET.get('page')
page = '?page={}'.format(page) if page else ''
if request.method == "POST":
form = DataForm(request.POST)
if form.is_valid():
data = form.save()
return redirect(reverse('program-detail', kwargs={'pk': data.exercise.program.pk}) + page)
forms.py:
class DataForm(forms.ModelForm):
class Meta:
model = Data
fields = ['set_number', 'spo2', 'hr']
I didn't add all the fields because it is too long for test stage.
template.py:
{% extends "program/base.html" %}
{% load crispy_forms_tags %}
{% block content %}
<h3> Program Exercises List </h3>
{% for exercise in exercises %}
<article class="media content-section">
<div class="media-body">
<div class="article-metadata">
{% if user.is_superuser %}
<a class="btn btn-secondary btn-sm mt-1 mb-1" href="{% url 'exercise-update' exercise.id %}">Update</a>
<a class="btn btn-danger btn-sm mt-1 mb-1" href="{% url 'exercise-delete' exercise.id %}">Delete</a>
<p class="article-content">{{ exercise.name }}</p>
{% else %}
<p class="article-content">{{ exercise.name }}</p>
{% endif %}
</div>
<div class="article-metadata">
<p class="article-content">{{ exercise.description }}</p>
<p class="article-content">{{ exercise.breath_method}}</p>
<p class="article-content">{{ exercise.recovery_method }}</p>
<p class="article-content">{{ exercise.measure_method }}</p>
<p class="article-content">{{ exercise.load_share }}</p>
<p class="article-content">{{ exercise.notes }}</p>
<p class="article-content">{{ exercise.extra_info }}</p>
<p class="article-content">{{ exercise.reps }}</p>
<p class="article-content">{{ exercise.sets }}</p>
</div>
<form action="{% url 'data-submit' %}{%if request.GET.page%}?page={{request.GET.page}}{%endif%}" method="POST" enctype="multipart/form-data">
{% csrf_token %}
<fieldset class="form-group">
<legend class="border-bottom mb-4">Exercise Measurements</legend>
{{ form|crispy }}
</fieldset>
<div class="form-group">
<button class="btn btn-outline-info" type="submit">Save</button>
</div>
</form>
</div>
</article>
{% endfor %}
{% if is_paginated %}
{% if page_obj.has_previous %}
<a class="btn btn-outline-info mb-4" href="?page={{ page_obj.previous_page_number }}">Previous Exercise</a>
{% endif %}
{% if page_obj.has_next %}
<a class="btn btn-outline-info mb-4" href="?page={{ page_obj.next_page_number }}">Next Exercise</a>
{% else %}
<a class="btn btn-outline-info mb-4" href="{% url 'web-home' %}">Exit</a>
{% endif %}
{% endif %}
{% endblock content %}
The instances I am trying to pass (in the Data form) without the user input are:
exercise - each Data form will be connect to an exercise in the database. as I mention before, the exercises are paginated 1 per page, maybe its something i can use?
I tried to solve it by that way:
def form_valid(self, dataform):
program_num = get_object_or_404(Program, pk=self.kwargs.get('pk'))
exercises = Exercise.objects.filter(program=program_num)
for exe in exercises:
dataform.instance.exercise = exe.pk
print(dataform.instance.exercise)
return super(ExerciseListView, self).form_valid(dataform)
It didn't work, I am still receiving id error for this instance.
set_number - each exercise as few sets. what I want to build is that:
the exercise as "sets" that define the number of sets the user need to perform. I want to set a "for" loop that count the number of sets and pass this instance "set_number" accordingly.
Each time the user submit the form, it will have an exercise and set_number.
Thanks!