创建子主题？

开发
1

I would like to make some topics sub-topics of others.

Say I have “Topic A”. On the Topic A page, I will put a button to “create sub topic”. That will allow the user to create a new topic, “topic b”. topic b would be a child of Topic A.

What this means, from the user experience, is:

I could also have a button on the Topic A page to “view all the child topics of Topic A”, and this would go to a list of Topic A’s child topics, such as topic b and any other topics that are children of Topic A.

What’s the best way to do this? (I’m assuming I’ll have to do it in a plugin, which is fine.)

Note I’d only be looking for one level of subtopic down, not several.

Here’s some detail on the possibilities I think could do it:

Categories (though this probably is not the best way to go)

Categories would provide similar functionality to what I have in mind, but that could get too heavy once there are a decent number of topics with subtopics (it seems like overkill to basically have a new category for each parent topic).

or

Tags

The best I can think of right now is using tagging. So that when you click “create sub topic” on Topic A, it opens up a new topic, and I programmatically add a hidden tag, like “Topic-A”, that links to Topic A. Then when you click “view all sub topics” of Topic A, it does a search for the tag “Topic-A”.

This seems pretty clean, other than the fact that there will be a lot of tags (basically one tag for each main topic, which could end up being a lot).

or

Custom Fields for Topics

Another possibility I’ve considered is to create a custom field for topics, which would be an array of the ids of that topic’s sub-topics. This also could work, but would probably be slightly more complicated to code.

For example, I’d have to update the main topic’s custom field only after a subtopic is created; and, I’d have to create a new kind of search–searching for all the topics within the main topic’s custom field array–instead of just using the pre-built tag search functionality.

Is there another solution I’m missing?

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2

I see an other solution that might work, with no heavy code work.

With the custom wizard plugin, you may do multiple actions in one procedure. So in that case, you would ask the user to write their sub-topic with a wizard that would:

  • Create a new topic for the subtopic
  • Create a replay in the main topic linking the subtopic.

With some custom CSS for all the main posts (you can add a CSS class to select them with a category or a tag), you can modify the replies appearance to match what you have in mind. You might also find a way with the wizard to add a parameter to the replies that will allow you to select only the automatic replies.

If you don’t like the reply solution, I think the custom wizard may also add the tag on the created sub-topic.

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3

I hadn’t thought of that. Thanks. The key piece I am missing is something in the subtopic that links back to the main topic. Such as a tag (“Topic-A”) associated with the subtopic.

Are you thinking that the wizard would, on submission, send an API call to create the tag and link it to the subtopic? (I’m not that familiar with the wizard plugin.)

I also think one limit of the wizard plugin is that it opens its own page, that does does not have the normal header of my site–in other words, I think any page with the wizard will look pretty different than the rest of the app, which could be confusing in this case for users.

4

我也在想，我希望有一个级别的子主题。这可以实现一个级别的嵌套/层次结构，同时保持界面整洁，避免出现大量嵌套对话。

我可能会这样使用它：

  • 为一个剧集/帖子/文章创建一个主题，然后让人们根据他们的反应创建子主题。

  • 创建一个问题主题，然后让人们创建包含他们自己答案的子主题（如果可以选择限制每人一个子主题，那就更好了）。

您在创建插件或利用当前 Discourse 功能实现这一点方面有进展吗？

5

我唯一能想到的方法是使用主题自定义字段。例如，子主题可以有一个链接回主主题的自定义字段。然后，您可以搜索所有以该主主题作为自定义字段值的ョピック。我还没有完全实现的插件，但我能够使用我在这里提到的代码在开发中基本实现它：Retrieve Topics based on custom field? - #12 by JQ331

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6

是的，我想象一下，如果我们创建一个名为“topic-parent”或类似的自定义主题字段，那么将有很多方法可以利用它。我会更深入地研究您分享的链接，并希望在此过程中学习一些 Ruby。谢谢！

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