Add tags/roles and tags/collections endpoints

[jerabekjiri]

Issue: AAH-2761

• add sorting by name and count for both endpoints
• filter by name, name__icontains, name__contains, name__startswith for both endpoints

_ui/v1/tags/collections:

• add new endpoint, so it doesn't break existing one (_ui/v1/tags/)
• add count attribute to TagSerializer (Add count attribute to TagSerializer pulp/pulp_ansible#1612)

_ui/v1/tags/roles:

• To populate tags endpoint: django-admin populate-role-tags

GET /api/_ui/v1/tags/roles/
{
    "meta": {
        "count": 10
    },
    "links": {
        "first": "/api/_ui/v1/tags/roles/?limit=10&offset=0",
        "previous": null,
        "next": null,
        "last": "/api/_ui/v1/tags/roles/?limit=10&offset=0"
    },
    "data": [
        {
            "name": "firefox",
            "count": 5
        },
        {
            "name": "development",
            "count": 3
        },
        {
            "name": "workstation",
            "count": 1
        },
        {
            "name": "bfg",
            "count": 1
        }
    ]
}

[rochacbruno]

does it really need to use the crossrepo index? for community we have only one repo and it would be faster to just take the is_highest from the single repo.

[jerabekjiri]

That's true, but then this wouldn't work for PAH and CRC

[jerabekjiri]

/retest

[jctanner]

Let's try it out and see how it goes.

[himdel]

0042_namespace_created_namespace_updated ?

(there's a new migration if you rebase .. and this bit seems to produce an infinite loop when starting)

[jerabekjiri]

Good catch 👍, rebased.

[himdel]

The collections endpoint seems to work, but the items are missing count.
The roles endpoint returns 0 items even after I imported some roles with tags.

Do I need to trigger some manage command to regenerate, have a flag enabled, or something?

[jerabekjiri]

@himdel

The collections endpoint seems to work, but the items are missing count.

count will be included in next pulp_ansible release pulp/pulp_ansible#1612

The roles endpoint returns 0 items even after I imported some roles with tags.

Do I need to trigger some manage command to regenerate, have a flag enabled, or something?

Good point, I forgot to mention that you need to run django-admin populate-role-tags to populate tags. Sorry about that

[himdel]

Thanks! :) Works for me, I can see role tag counts now 👍