Change name to username

app/finders/pipelines_finder.rb

@@ -81,7 +81,7 @@ class PipelinesFinder
 
   def by_username(items)
     if params[:username].present?
-      items.joins(:user).where("users.name = ?", params[:username])
+      items.joins(:user).where("users.username = ?", params[:username])
     else
       items
     end

spec/finders/pipelines_finder_spec.rb

@@ -144,7 +144,7 @@ describe PipelinesFinder do
 
     context 'when a username is passed' do
       context 'when a username exists' do
-        let(:params) { { username: user1.name } }
+        let(:params) { { username: user1.username } }
 
         it 'selects all pipelines which belong to the username' do
           expect(subject).to match_array(Ci::Pipeline.where(user: user1))