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Ensure the post categories are unique (only one). Ref: #2527 #2531 

h/t @Nicholas-Perry
https://github.com/jekyll/jekyll/issues/2527#issuecomment-47041756
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Parker Moore 2014-06-24 19:15:02 -04:00
parent 579d9fc813
commit 6e104c3ed0
1 changed files with 3 additions and 2 deletions
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lib/jekyll/post.rb
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@ -78,8 +78,9 @@ module Jekyll
def populate_categories def populate_categories
categories_from_data = Utils.pluralized_array_from_hash(data, 'category', 'categories') categories_from_data = Utils.pluralized_array_from_hash(data, 'category', 'categories')
self.categories = (Array(categories) + categories_from_data).map {|c| c.to_s.downcase} self.categories = (
categories.flatten! Array(categories) + categories_from_data
).map {|c| c.to_s.downcase}.flatten.uniq
end end
def populate_tags def populate_tags