Merge branch 'pedropombeiro/333806/graphql-support-runner-count' into 'master'

GraphQL: Add count property to RunnerType’s connection

See merge request gitlab-org/gitlab!77578

app/graphql/types/ci/runner_type.rb

@@ -4,6 +4,7 @@ module Types
   module Ci
     class RunnerType < BaseObject
       edge_type_class(RunnerWebUrlEdge)
+      connection_type_class(Types::CountableConnectionType)
       graphql_name 'CiRunner'
       authorize :read_runner
       present_using ::Ci::RunnerPresenter

db/migrate/20220104174445_add_ci_runners_index_on_active_state.rb

+# frozen_string_literal: true
+
+class AddCiRunnersIndexOnActiveState < Gitlab::Database::Migration[1.0]
+  disable_ddl_transaction!
+
+  INDEX_NAME = 'index_ci_runners_on_active'
+
+  def up
+    add_concurrent_index :ci_runners, [:active, :id], name: INDEX_NAME
+  end
+
+  def down
+    remove_concurrent_index_by_name :ci_runners, INDEX_NAME
+  end
+end

db/schema_migrations/20220104174445

+5e5e41ee4c8dc9c3fe791470862d15b8d213fcc931ef8b80937bdb5f5db20aed
\ No newline at end of file

db/structure.sql

@@ -25593,6 +25593,8 @@ CREATE INDEX index_ci_runner_projects_on_project_id ON ci_runner_projects USING
 
 CREATE INDEX index_ci_runner_projects_on_runner_id ON ci_runner_projects USING btree (runner_id);
 
+CREATE INDEX index_ci_runners_on_active ON ci_runners USING btree (active, id);
+
 CREATE INDEX index_ci_runners_on_contacted_at_and_id_desc ON ci_runners USING btree (contacted_at, id DESC);
 
 CREATE INDEX index_ci_runners_on_contacted_at_and_id_where_inactive ON ci_runners USING btree (contacted_at DESC, id DESC) WHERE (active = false);

doc/api/graphql/reference/index.md

@@ -5503,6 +5503,7 @@ The connection type for [`CiRunner`](#cirunner).
 
 | Name | Type | Description |
 | ---- | ---- | ----------- |
+| <a id="cirunnerconnectioncount"></a>`count` | [`Int!`](#int) | Total count of collection. |
 | <a id="cirunnerconnectionedges"></a>`edges` | [`[CiRunnerEdge]`](#cirunneredge) | A list of edges. |
 | <a id="cirunnerconnectionnodes"></a>`nodes` | [`[CiRunner]`](#cirunner) | A list of nodes. |
 | <a id="cirunnerconnectionpageinfo"></a>`pageInfo` | [`PageInfo!`](#pageinfo) | Information to aid in pagination. |