[Answer]-Django Retrieving Picture ID

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Your </li> and </a> is in the incorrect position, it must be:

<li>
   <a href ="{% url world:Like pet.id %}">
       <img src= "{{ pet.image.url }}" style="cursor:pointer">
   </a>
</li>

I added cursor:pointer in your image

Update:

OK I trace your codes, the problem why your picture do nothing because the like and boat has the same url address. Why it happen to be the same? even though they have different url name. Notice the address url above in your browser, they both return http://localhost:8000/1/.

Like url is:

    url(
        r'^(?P<picture_id>\d+)/$',
        'pet.views.Like',
        name = 'Like'
    ),

    //which return http://localhost:8000/1/ --> 1 is just a sample id

Boat url is: 

    url(
        r'^(?P<animal_id>\d+)/$',
        'pet.views.Like',
        name = 'Like'
    ),

    //which return also http://localhost:8000/1/ --> 1 is just a sample id

To make it effective and fix, you must change the url address either one of them like this:

    url(
        r'^like/(?P<picture_id>\d+)/$',
        'pet.views.Like',
        name = 'Like'
    ),

    //which return now as http://localhost:8000/like/1/
👤catherine

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