feat: Add gold members on pages foundation and community

[antoinehashbang]

About this issue: #2302

• Add a templatetag "gold_corporate_members", similar to the one used in the /download/ page
• In files "base_community.html" and "base_foundation.html", add a block "content-related-extra" in block "content-related"
• In files "foundation.html" and "index.html" (template for community page), use this block to call templatetag "gold_corporate_members"
• Add few tests for this new templatetags
• update test "test_community_index_number_of_queries" because we have increase the number of queries on this page

[sarahboyce]

Thank you for the PR! This looks great 👍
There's an update on the issue that we should have Gold+ sponsors (#2302 (comment)), do you mind updating?

[SaptakS]

@antoinehashbang did you get a chance to make the updates as mentioned in the comment above?

[antoinehashbang]

@antoinehashbang did you get a chance to make the updates as mentioned in the comment above?

Hello, not yet, but It should be done until end of week

[sarahboyce]

Thank you for the updates!
In case @cholmes5 wants to take a look this would roughly look like (ignore the random test data...)

and

@antoinehashbang I think you've missed the following comment about the News page (#2302 (comment))

Also @cholmes5 when you say About pages, do you mean only https://www.djangoproject.com/foundation/ or also other pages like https://www.djangoproject.com/foundation/faq/ ?

[sarahboyce]

Instead of adding a new template and new tag I think we could make the existing tag more generic like

@register.inclusion_tag("fundraising/includes/top_corporate_members.html")
def top_corporate_members(*levels, header=None):
    """
    Usage: {% top_corporate_members "diamond" "platinum" header="Diamond and Platinum Members" %}
    """

    all_members = CorporateMember.objects.by_membership_level()

    members = []
    for level in levels:
        if level in all_members:
            members += all_members[level]

    return {"header": header, "members": members}

and render the header in the template like <h3>{{ header }}</h3>

[alexgmin]

This generic tag will also be useful for #2371, since it means we can reuse it for the blog.

[alexgmin]

I talked with @cholmes5 in slack and she is ok with showing the sponsors at the top in all pages in the community and foundation sections, the way it is right now on the screenshots. Once @sarahboyce comment is addressed, this should be ready to merge.

@antoinehashbang Will you be able to address @sarahboyce comment soon? If now, is it a problem if a maintainer addresses it? It's only to finally get it done and live, not to remove any credit from you.