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Merge pull request #19153 from stephenminded/docs_fix_polymorphic_index

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[docs fix] Indexing a polymorphic assoc adds index on type and id
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Abdelkader Boudih 2015-03-01 19:22:13 +00:00
commit 1d10b4bdac
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guides/source/association_basics.md
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@ -460,7 +460,7 @@ class CreatePictures < ActiveRecord::Migration
t.timestamps null: false t.timestamps null: false
end end
add_index :pictures, :imageable_id add_index :pictures, [:imageable_id, :imageable_type]
end end
end end
``` ```