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MONGOID-5863 #last overrides #skip #5975

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Merged
merged 5 commits into from
May 22, 2025
Merged

MONGOID-5863 #last overrides #skip #5975

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07eeca5
remove redundant skip()
jamis Apr 15, 2025
69c1de6
Merge branch 'master' into MONGOID-5863
jamis Apr 30, 2025
b83e663
GHA is retiring ubuntu-20.04
jamis Apr 30, 2025
336cfa1
try and fix syntax error
jamis Apr 30, 2025
ce13e45
try again
jamis Apr 30, 2025
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2 changes: 1 addition & 1 deletion lib/mongoid/contextual/mongo.rb
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Expand Up @@ -1122,7 +1122,7 @@ def retrieve_nth_to_last(n)
end

def retrieve_nth_to_last_with_limit(n, limit)
v = view.sort(inverse_sorting).skip(n).limit(limit || 1)
v = view.sort(inverse_sorting).limit(limit || 1)
v = v.skip(n) if n > 0
raw_docs = v.to_a.reverse
process_raw_docs(raw_docs, limit)
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6 changes: 6 additions & 0 deletions spec/mongoid/contextual/mongo_spec.rb
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Expand Up @@ -3292,6 +3292,12 @@
it "limits the results" do
expect(context.skip(1).entries).to eq([ new_order ])
end

context "with #last" do
it "returns the nth from last element" do
expect(context.skip(1).last).to eq(depeche_mode)
end
end
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@johnnyshields johnnyshields May 5, 2025 •
edited
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The method has sort(inverse_sorting) and then later v.to_a.reverse, which ensure the ordering in the case that multiple docs are returned.

Is this covered by tests? i.e. ensuring correct document ordering the result for multiple docs?

  • combining skip(n) with limit(m) (where n, m > 1)
  • last(n) (where n > 1)

end

describe "#sort" do
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