Trying to get a unique list of values from a dictionary

Question

I've got a dictionary that has a structure similar to:

{
    'id': 16, 
    'name': 'something', 
    'client': 'client1', 
}, 
{
    'id': 17, 
    'name': 'something', 
    'client': 'client2', 
},
{
    'id': 18, 
    'name': 'something-else', 
    'client': 'client3', 
}

I can iterate through my dicts in my templates but I'm trying to get the unique values of name in this case. I've tried a couple different options such as:

{% for name in data | unique %}

or

{% for name in data.name | unique %}

but none of it returns me a list of unique names.

What's the best way to do this? I've thought about creating a custom filter, but wondering if there is a better way to do it.

Answer 1

From the docs:

Returns a list of unique items from the given iterable.

case_sensitive – Treat upper and lower case strings as distinct.

attribute – Filter objects with unique values for this attribute.

Because you want to eliminate duplicates based on the value of the name argument, you should set the attribute argument accordingly:

{% for name in data | unique(attribute="name") %}