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Use alias instead of annotate for intermediary similarity values

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This commit is contained in:
Jake Howard 2023-06-02 17:35:20 +01:00
parent 033b8be859
commit b7bcaeff63
Signed by: jake
GPG key ID: 57AFB45680EDD477
1 changed files with 2 additions and 2 deletions
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4
website/blog/models.py
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@ -74,7 +74,7 @@ class BlogPostPage(BaseContentPage):
except BlogPostListPage.DoesNotExist:
return BlogPostPage.objects.none()
similar_posts = listing_pages.exclude(id=self.id).annotate(
similar_posts = listing_pages.exclude(id=self.id).alias(
title_similarity=TrigramSimilarity("title", self.title),
# If this page has no subtitle, ignore it as part of similarity
subtitle_similarity=TrigramSimilarity("subtitle", self.subtitle)
@ -83,7 +83,7 @@ class BlogPostPage(BaseContentPage):
)
page_tags = list(self.tags.values_list("id", flat=True))
similar_posts = similar_posts.annotate(
similar_posts = similar_posts.alias(
# If this page has no tags, ignore it as part of similarity
# NB: Cast to a float, because `COUNT` returns a `bigint`.
tag_similarity=Cast(