adverts_tags.py 文件源码

def get_advert_thumbnail(advert):
    """
        Takes Advert object and returns thumbnail image, if no thumbnail - returns first image
        if no image at all returns 'no-photo.jpg'
    """
    photos = advert.images.all()
    if photos:
        for photo in photos:
            if photo.thumbnail:
                return photo.image.url
        return photos[0].image.url
    return static('img/no-photo.jpg')