Is it possible to create subcategories within subcategories? For example, can I have a grandparent category, parent subcategory, and child subcategory? If not, is there any alternative to creating a separate instance for each “grandparent”?
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No, there are only two levels of categories in Discourse.
We’ll combine the 2 levels of categories with tags. It’s not just about taxonomy, it’s also about moderation rights.
Will 3 levels of categorization be possible in the future? My site is about 4 sports, then within each sport, I want a category called “Gear”, and then within “Gear” have the different brands.
I could also do a top level category called Gear, and then have the Gear Companies underneath.
Or just have the Gear companies for each sport listed directly under the sport.
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No plans for more than 2 levels of categories. As @jeans noted, adding tags into the mix makes more sense at that point. So use the official tag support built into Discourse.
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@codinghorror What would be the technical implications of allowing deeper nesting of categories? I don’t have a specific requirement in mind, just curious. I can see UI concerns, but the data model looks like it could handle chains of parents.
Here a typical case where we need to configure Discourse with 3 levels,
Local Groups - Open Knowledge Forums
the local-groups are in fact the “level zero”, in some cases we also change language (!), as at local-groups/okbr. The main topics are at this level-2, it is ok, but…
The level-3 is important to isolate very distinct topics and/or communities:
-
to isolate official topics. Example: today we use the “official” tag as here, but we need to isolate as
local-groups/okbr/oficial, -
to isolate projects, because they have independent communities and very specific topics. Example: this project was losted in an external category, openspending/gastos-abertos, we need an intersection between
openspendingandlocal-groups/okbrand we understand that the second is the priority, so need categorylocal-groups/okbr/prj-gastos-abertosthat is a typical “local group project” category.
这很有趣：你似乎认为任何现有知识领域都只能按一级类别划分，而不能按二级或更高级别划分。虽然我不清楚你的具体理由，但对我来说，很难相信这会是事实。
是两级，而不是三级。而且 我们并不是唯一这样认为的人。
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如何实际标记一个类别？
您好，感谢您提供的出色的讨论工具和社区。我想了解是否有可能动态创建子子类别？如何使用标签来实现？
试试这个
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现在您可以创建子类别了，只需将父类别设为您想要在其下添加子类别的类别即可。
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现在可以通过隐藏的站点设置更改子类别的级别：
cd /var/discourse/
./launcher enter app
rails c
SiteSetting.max_category_nesting = 3
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他指的是子子类别，也就是第三级，而不是第二级（子类别）。
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好的。这个隐藏设置使得创建子子类别（三级，因此设置中有个3）成为可能。我想它已经存在一年了，但添加时并没有引起太多关注（它只是出现在了发布说明中，但可能没有标题）。我猜一定有企业客户想要这个功能，但他们仍然认为这是一个糟糕的主意。
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