Each product can have multiple images.
images are divided by type. it facilitates the withdrawal of the
desired image in the right place.
On 27 дек, 01:35, Mikhail Korobov <kmik...@googlemail.com> wrote:
> 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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