Fix remote_mirrors usage data metric

app/models/project.rb

@@ -579,7 +579,7 @@ class Project < ApplicationRecord
     with_issues_available_for_user(user).or(with_merge_requests_available_for_user(user))
   end
   scope :with_merge_requests_enabled, -> { with_feature_enabled(:merge_requests) }
-  scope :with_remote_mirrors, -> { joins(:remote_mirrors).where(remote_mirrors: { enabled: true }).distinct }
+  scope :with_remote_mirrors, -> { joins(:remote_mirrors).where(remote_mirrors: { enabled: true }) }
   scope :with_limit, -> (maximum) { limit(maximum) }
 
   scope :with_group_runners_enabled, -> do

changelogs/unreleased/325803-usage-ping-syntax-errors.yml

+---
+title: Fix remote_mirrors usage ping metric
+merge_request: 57332
+author:
+type: fixed

spec/lib/gitlab/usage_data_spec.rb

@@ -167,7 +167,10 @@ RSpec.describe Gitlab::UsageData, :aggregate_failures do
         create(:key, user: user)
         create(:project, creator: user, disable_overriding_approvers_per_merge_request: true)
         create(:project, creator: user, disable_overriding_approvers_per_merge_request: false)
-        create(:remote_mirror, project: project)
+        create(:remote_mirror, project: project, enabled: true)
+        another_user = create(:user)
+        another_project = create(:project, :repository, creator: another_user)
+        create(:remote_mirror, project: another_project, enabled: false)
         create(:snippet, author: user)
       end
 
@@ -176,7 +179,7 @@ RSpec.describe Gitlab::UsageData, :aggregate_failures do
         keys: 2,
         merge_requests: 2,
         projects_with_disable_overriding_approvers_per_merge_request: 2,
-        projects_without_disable_overriding_approvers_per_merge_request: 4,
+        projects_without_disable_overriding_approvers_per_merge_request: 6,
         remote_mirrors: 2,
         snippets: 2
       )
@@ -185,7 +188,7 @@ RSpec.describe Gitlab::UsageData, :aggregate_failures do
         keys: 1,
         merge_requests: 1,
         projects_with_disable_overriding_approvers_per_merge_request: 1,
-        projects_without_disable_overriding_approvers_per_merge_request: 2,
+        projects_without_disable_overriding_approvers_per_merge_request: 3,
         remote_mirrors: 1,
         snippets: 1
       )

spec/models/project_spec.rb

@@ -1351,6 +1351,34 @@ RSpec.describe Project, factory_default: :keep do
     end
   end
 
+  describe '.with_remote_mirrors' do
+    let_it_be(:project) { create(:project, :repository) }
+
+    subject { described_class.with_remote_mirrors }
+
+    context 'when some remote mirrors are enabled for the project' do
+      let!(:remote_mirror) { create(:remote_mirror, project: project, enabled: true) }
+
+      it "returns a project" do
+        is_expected.to eq([project])
+      end
+    end
+
+    context 'when some remote mirrors exists but disabled for the project' do
+      let!(:remote_mirror) { create(:remote_mirror, project: project, enabled: false) }
+
+      it "returns a project" do
+        is_expected.to be_empty
+      end
+    end
+
+    context 'when no remote mirrors exist for the project' do
+      it "returns an empty list" do
+        is_expected.to be_empty
+      end
+    end
+  end
+
   describe '.with_active_jira_services' do
     it 'returns the correct project' do
       active_jira_service = create(:jira_service)