Add dynamic data to template

I need to put data into the sidebar. Haven't figured out any other sollution than context_processors. Is this the cleanest and optimal way to do this?

Any help appreciated. I find it a bit strange that it has been so hard to find information re. this issue. So maybe this could be of help to others as well.

# animals/context_processors.py
from animals.models import Cows, Horses
from django.shortcuts import render

def allcows(request):
    cows = Cows.objects.all()
    return {"cows": cows}

def lasthorses(request):
    horses = Horses.objects.all().order_by("-id")[:2]
    return {"horses": horses}


Sidebar.html
<h1>Sidebar</h1>

<h3>All cows:</h3>
{%for cow in cows%}
<div>
    The name is {{ cow.name }}, and the age of {{ cow.name}} is {{ cow.age }}.
</div>
{%endfor%}


<h3>last 2 horses:</h3>
{%for horse in horses%}
<div>
    The name is {{ horse.name }}, and the age of {{ horse.name}} is {{ horse.age }}.
</div>
{%endfor%}

base.html
<body>
    <div class="holy-grail-grid">
        <header class="header">{% include 'animals/nav.html' %}
        </header>
        <main class="main-content">
            <header id="main-header">
                <h1>{% block main_heading %}Main Heading{% endblock %}</h1>
                <h3> {% block header_content %}Heading{% endblock %}</h3>
            </header>
            {% block content %}
            {% endblock %}
        </main>
        <section class="left-sidebar">
            <p>My left sidebar{% include 'animals/sidebar.html' %}
            </p>
        </section>
        <aside class="right-sidebar">
            <p>My right sidebar{% include 'animals/justinfo.html' %}</p>
        </aside>
        <footer class="footer">
            <p>The footer</p>
        </footer>
    </div>
</body>

If you always need cows and horses, you can just use:

# animals/context_processors.py
from animals.models import Cows, Horses
from django.shortcuts import render


def all_animals(request):
    cows = Cows.objects.all()
    horses = Horses.objects.order_by('-id')[:2]
    return {'cows': cows, 'horses': horses}

and since QuerySets are lazy, this will not make any queries if you don't need cows or horses in the templates you are rendering.

Note: Normally a Django model is given a singular name [django-antipatterns], so Cow instead of Cows.

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