Feature: Add help information for ZenTao integration

app/models/integrations/zentao.rb

@@ -2,6 +2,8 @@
 
 module Integrations
   class Zentao < Integration
+    include Gitlab::Routing
+
     data_field :url, :api_url, :api_token, :zentao_product_xid
 
     validates :url, public_url: true, presence: true, if: :activated?
@@ -26,6 +28,14 @@ module Integrations
       s_("ZentaoIntegration|Use ZenTao as this project's issue tracker.")
     end
 
+    def help
+      s_("ZentaoIntegration|Before you enable this integration, you must configure ZenTao. For more details, read the %{link_start}ZenTao integration documentation%{link_end}.") % {
+        link_start: '<a href="%{url}" target="_blank" rel="noopener noreferrer">'
+          .html_safe % { url: help_page_url('user/project/integrations/zentao') },
+        link_end: '</a>'.html_safe
+      }
+    end
+
     def self.to_param
       name.demodulize.downcase
     end
@@ -82,3 +92,5 @@ module Integrations
     end
   end
 end
+
+::Integrations::Zentao.prepend_mod

locale/gitlab.pot

@@ -39908,6 +39908,9 @@ msgstr ""
 msgid "ZentaoIntegration|Base URL of the ZenTao instance."
 msgstr ""
 
+msgid "ZentaoIntegration|Before you enable this integration, you must configure ZenTao. For more details, read the %{link_start}ZenTao integration documentation%{link_end}."
+msgstr ""
+
 msgid "ZentaoIntegration|Enter new ZenTao API token"
 msgstr ""
 

spec/models/integrations/zentao_spec.rb

@@ -50,4 +50,10 @@ RSpec.describe Integrations::Zentao do
       expect(zentao_integration.test).to eq(test_response)
     end
   end
+
+  describe '#help' do
+    it 'renders prompt information' do
+      expect(zentao_integration.help).not_to be_empty
+    end
+  end
 end