python - Django how to get in model the value from another model -

how in django models class value of blogpagegalleryimage image or foreign key or parental key?

class blogpage(page):     date = models.datefield("Дата публикации" , default=datetime.date.today  )     body = richtextfield(blank=true)     name = models.charfield(max_length=80, default='Лучший')    class blogpagegalleryimage(orderable):     page = parentalkey(blogpage, related_name='gallery_images')     image = models.foreignkey('wagtailimages.image', on_delete=models.cascade, related_name='+')     caption = models.charfield(blank=true, max_length=250)     panels = [         imagechooserpanel('image'),         fieldpanel('caption'),     ]  class another(blogpage):     page = parentalkey(blogpage, related_name='instagram_post')     image = blogpagegalleryimage.objects.get(blogpagegalleryimage.)      caption = models.charfield(blank=true, max_length=250)     panels = [         imagechooserpanel('image'),         fieldpanel('caption'),     ]   

it seems looking access blog page images in blogpage , another template. can achieved adding blog page images rendering context. override get_context in blogpage method:

def get_context(self, request, *args, **kwargs):     context = super(blogpage, self).get_context(        request, *args, **kwargs     )     context['images'] = blogpagegalleryimage.objects.filter(         page=self,     )     return context 

this means can in template access images using {{ images }}. example:

{% in images %}     <div class="image">         {% image i.image %}         <p>{{ i.caption }}</p>     </div> {% endfor %}