How to prefetch Wagtail post tags?

会有一股神秘感。 提交于 2020-06-18 01:28:30

问题


I have around 10 posts and it is generating about 100 queries to fetch post tags. The taggit library Wagtail used underneath supportprefetch_related, but adding prefetch_related has no effect. After more research, I found that the culprit is Wagtail's ClusterTaggableManager that overrides taggit's TaggableManager.

In the changelog, it says

2.0 (22.04.2016)
~~~~~~~~~~~~~~~~    
* Fix: prefetch_related on a ClusterTaggableManager no longer fails (but doesn't prefetch either)        

It has been 2 years and it seems they are not going to fix it anytime soon. So... Is there anything I can do to reduce the number of queries? Thanks!

来源:https://stackoverflow.com/questions/51767172/how-to-prefetch-wagtail-post-tags

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