如何在 django 视图中访问外部表字段

Question

I have two models, the plans model & plans features ( foreign relation with plans table), given below:

Following is the view which returns an object of features for each plan:

Now I want to access, the "price" field of the plans table (model). How this is possible? my Django template is the following which doesn't work:

I belive there is solution to this, I would love hear from you. thank you

Answer 1

First of all, when you use filter returns a queryset, not a single object so you can not direct access the foreign key with dot

Solution:

1. Use .get()
2. Use .filter().first()

You can choose from above two.

Assuming you have unique entries for basic, standard and professional packages

plans_features.objects.get(plan__title="BASIC")
plans_features.objects.get(plan__title="STANDARD")
plans_features.objects.get(plan__title="PROFESSIONAL")

<ul class="deal-item">
{% basic.plan.price %}
</ul>
<ul class="deal-item">
{% standard.plan.price %}
</ul>
<ul class="deal-item">
{% professiona.plan.price %}
</ul>