Django how to display list users with some data in template - django

Question

I want to display the list of users with some objects in 2 modelapps created.
these are the models.
first model:
class UserProfile(models.Model):
user = models.OneToOneField(User,on_delete=models.CASCADE)
indirizzo = models.CharField(max_length=50)
citta = models.CharField(max_length=50)
paese = models.CharField(max_length=50)
ecap = models.CharField(max_length=4)
descrizione = models.CharField(max_length=100, default='')
image = models.ImageField(upload_to='profile_image', blank=True,null=True)
second model:
class Ore(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="ore",null=True,)
data = models.DateField(default=timezone.now)
oret = models.CharField(max_length=3,)
contrattiok = models.PositiveSmallIntegerField()
contrattiko = models.PositiveSmallIntegerField(default=0,)
nomecognome = models.CharField(max_length=100,blank=True)
my view:
def inizio(request):
users = User.objects.all()
return render (request, "base.html", {"users":users})
my template:
{% for users in users %}
<tbody>
<tr>
<td>
<img src="{{ users.userprofile.image.url }}"class="thumbnail">
<h4 class="small font-weight-bold">{{users}}</h4>
</td>
<td><h4 class="small font-weight-bold">{{users.last_name}}</h4></td>
<td class="text-center">
<h4 class="small font-weight-bold" class="btn btn-primary btn-circle">{{ users.ore.contrattiok }}</h4> <<<<<(does not work)
</td>
</tr>
{% endfor %}

Answer 1

I saw several problems in your templates.
1. It would be better to make different variable of users loop to increase readability code.
don't do this: {% for users in users %}
but instead: {% for user in users %}
so then you can use it with user instead of users inside loop like:
{{ user.last_name }}
2. your <tbody> inside forloop users, but theres no </tbody> right before the {% endfor %}.
But I suggest you to do not include <tbody> inside forloop.
Do this instead:
<tbody>
{% for user in users %}
<tr><td></td></tr>
{% endfor %}
</tbody>
since your foreign key is inside Ore model instead
(one to many relationship which means 1 user has many ores),
so you need to loop every ore on each user.
{% for user in users %}
{% for ore in user.ore.all %}
{{ ore.contrattiok }}
{% endfor %}
{% endfor %}
so the final result will be like this:
<tbody>
{% for user in users %}
<tr>
<td>
<img src="{{ user.userprofile.image.url }}" class="thumbnail">
<h4 class="small font-weight-bold">{{ user }}</h4>
</td>
<td><h4 class="small font-weight-bold">{{user.last_name}}</h4></td>
<td class="text-center">
{% for ore in user.ore.all %}
<h4 class="small font-weight-bold" class="btn btn-primary btn-circle">
{{ ore.contrattiok }}
</h4>
{% endfor %}
</td>
</tr>
{% endfor %}
</tbody>
EDITED
based on your comment, so you want to sum the total of contrattiok field?
if that so, you need to change your view using annotate
from django.db.models import Sum
users = User.objects.annotate(total_contrattiok=Sum('ore__contrattiok'))
then in your template:
{% for user in users %}
<td class="text-center">
<h4 class="small font-weight-bold" class="btn btn-primary btn-circle">
{{ user.total_contrattiok }}
</h4>
</td>
{% endfor %}