production = Production.objects.all()
for product in production:
try:
product.image = product.image_set.get (somefield = somevalue)
except Image.DoesNotExist:
pass
{% for product in production %}
{{ product.title }}
<Img src = "{{ product.image.image.name }}" alt =
"{{ product.title }}">
{% endfor %}
or even better implement the 'get_image' method for the Product.
But please note that these solutions are executing SQL queries for
each product. It may be better to denormalize the DB and add a FK
field to Product model pointing to the main Image model.
On 26 дек, 23:56, BigBlogMaker <bigblogma...@gmail.com> wrote:
> I'm sorry for my english, but on other groups nobody does not answers.
>
> In view defined variables:
>
> production = Production.objects.all ()
> images = {}
> for product in production:
> try:
> image = product.image_set.get (somefield = somevalue)
> images [product.id] = image
> except:
> pass
>
> Now the question is: how to access the elements of images in the
> template?
>
> {% for product in production %}
> {{ product.title }}
> {% if images %}
> <Img src = "{{ images.<we must substitute product.id>.name }}" alt =
> "{{ images.<we must substitute product.id>.title }}"/>
> {% endif %}
> {% endfor %}
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