Using while loop with counter in django template

Question

I need to put a counter in while loop in template. So I did:

<tbody> 
    {% with count=1 %}
    {% while count <={{orders_count}}: %}
        {% for order in orders %}
            <tr>
                <td style="width:5%;"></td>
                <td>{{count}}</td>
                <td>{{order.name}}</td>
            </tr>
            {% count+=1 %}
        {% endfor %}
    {% endwhile %}
    {% endwith %}
</tbody>

But finaly I have the following error:

Invalid block tag on line 216: 'while', expected 'endwith'. Did you forget to register or load this tag?

willeM_ Van Onsem · Accepted Answer · 2020-11-28 12:51:06Z

1

You do not need a while loop here, you can simply make use of the |slice template filter [Django-doc]:

<tbody> 
    {% for order in orders|slice:orders_count %}
        <tr>
            <td style="width:5%;"></td>
            <td>{{ forloop.counter }}</td>
            <td>{{ order.name }}</td>
        </tr>
    {% endfor %}
</tbody>

But slicing, etc. does not really belong in the template. You normally do that in the view.

edited Nov 28, 2020 at 12:51

answered Nov 28, 2020 at 12:42

willeM_ Van Onsem

482k33 gold badges483 silver badges624 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

M.J Over a year ago

Thanks but I think forloop.counter is true.

M.J Over a year ago

Does pattern |slice:orders_count make more resources(RAM/CPU) in comparison with the state which we don't type it?

willeM_ Van Onsem Over a year ago

@M.J: not significantly no. But what is order_count? If it is just the number of items in orders, then you should not pass it to the template anyway.

Ajay Lingayat · Accepted Answer · 2020-11-28 12:42:29Z

1

You can try this :

<tbody> 
    {% for order in orders %}
        <tr>
            <td style="width:5%;"></td>
            <td>{{forloop.counter}}</td>
            <td>{{order.name}}</td>
        </tr>
    {% endfor %}
</tbody>

answered Nov 28, 2020 at 12:42

Ajay Lingayat

1,6931 gold badge16 silver badges28 bronze badges

Collectives™ on Stack Overflow

Using while loop with counter in django template

2 Answers 2

3 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related