Merge branch 'fix-latest-pipeine-ordering-again' into 'master'

app/models/ci/pipeline.rb

@@ -93,11 +93,8 @@ module Ci
         .select("max(#{quoted_table_name}.id)")
         .group(:ref, :sha)
 
-      if ref
-        where(id: max_id, ref: ref)
-      else
-        where(id: max_id)
-      end
+      relation = ref ? where(ref: ref) : self
+      relation.where(id: max_id)
     end
 
     def self.latest_status(ref = nil)
@@ -105,7 +102,7 @@ module Ci
     end
 
     def self.latest_successful_for(ref)
-      success.latest(ref).first
+      success.latest(ref).order(id: :desc).first
     end
 
     def self.truncate_sha(sha)

changelogs/unreleased/fix-latest-pipeine-ordering.yml

+---
+title: Fix finding the latest pipeline
+merge_request: 8301
+author:

spec/models/ci/pipeline_spec.rb

@@ -464,6 +464,19 @@ describe Ci::Pipeline, models: true do
     end
   end
 
+  describe '.latest_successful_for' do
+    include_context 'with some outdated pipelines'
+
+    let!(:latest_successful_pipeline) do
+      create_pipeline(:success, 'ref', 'D')
+    end
+
+    it 'returns the latest successful pipeline' do
+      expect(described_class.latest_successful_for('ref')).
+        to eq(latest_successful_pipeline)
+    end
+  end
+
   describe '#status' do
     let!(:build) { create(:ci_build, :created, pipeline: pipeline, name: 'test') }