[Answer]-Need to access a manytomanyfield in django templates

by

1👍

✅

Something that’s important to keep in mind here is the performance implication of having to query a many-to-many relationship for each comparison, or even pre-loading all of the m2m data to see if the user is in the votes_received queryset.

In a case like this, I usually opt for a de-normalized way to do the boolean comparison. I will create a field to just hold the IDs as comma-separated ints and update the field via a post_save signal.

This greatly simplifies things at the view and template level and also avoids having to do any joins, or any additional queries at all.

Assuming you’re looping over a list of QuoteIdea instances and passing an instance of CofifiUser to the template, and you have added a field to QuoteIdea called something like cofifi_vote_ids you can do:

{# returns added to prevent wrapping #}

{% for quote_idea in quote_ideas %}
    <button class="btn 
        {% if cofifi_user.id in quote_idea.cofifi_vote_ids %}
        disabled
        {% else %}
        btn-primary
        {% endif %}">Button</button>
{% endfor %}
👤Brandon Taylor

0👍

I did something like this and it worked very good.

<button class="btn btn-primary btn-xs 
{% for creator in item.votes_received.all %}
  {%if user.id == creator.id %}
    disabled
  {%endif%}
{% endfor %}
">Send Coffee</button>
👤Rus Mine

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