Add Publishing page to sharepoint site programmatically at Feature activation

Add Publishing page to sharepoint site  programmatically at Feature activation

 public override void FeatureActivated(SPFeatureReceiverProperties properties)
        {
            SPWeb web = properties.Feature.Parent as SPWeb;

            web.AllowUnsafeUpdates = true;
            SPWebApplication Webapp = web.Site.WebApplication;
          
           SPList list = web.Lists["Pages"];

            String url = list.RootFolder.ServerRelativeUrl.ToString();

            PublishingSite pubSite = new PublishingSite(web.Site);

            //store your Page Layout Name

            string pageLayoutName = "ArticleLeft.aspx";

            string layoutURL = web.Url + "/_catalogs/masterpage/" + pageLayoutName;

            PageLayout layout = pubSite.PageLayouts[layoutURL];

            PublishingWeb publishingWeb = PublishingWeb.GetPublishingWeb(web);

            PublishingPage newCampaignPage;

            string campaignPage = "Campaigns.aspx"; //Page name which you want to create from the template

            newCampaignPage = publishingWeb.GetPublishingPages().Add(campaignPage, layout);

            newCampaignPage.Title = "Campaigns";

            newCampaignPage.Update();
           }

        }