Merge branch '30634-protected-pipeline' into 'master'

Implement "Block pipelines on protected branches"

Closes #30634, #34616, and #33130

See merge request !11910

1 files changed, 6 insertions, 5 deletions

diff --git a/lib/ci/api/triggers.rb b/lib/ci/api/triggers.rb
index 6e622601680..6225203f223 100644
--- a/lib/ci/api/triggers.rb
+++ b/lib/ci/api/triggers.rb
@@ -24,12 +24,13 @@ module Ci
           end
 
           # create request and trigger builds
-          trigger_request = Ci::CreateTriggerRequestService.new.execute(project, trigger, params[:ref], variables)
-          if trigger_request
-            present trigger_request, with: Entities::TriggerRequest
+          result = Ci::CreateTriggerRequestService.execute(project, trigger, params[:ref], variables)
+          pipeline = result.pipeline
+
+          if pipeline.persisted?
+            present result.trigger_request, with: Entities::TriggerRequest
           else
-            errors = 'No builds created'
-            render_api_error!(errors, 400)
+            render_validation_error!(pipeline)
           end
         end
       end