NopCommerce 4.x - Footer ViewComponent

Add domain and Install data

step 1: Add Domain 

add domain named with DisplayDefaultFooterItemSettings.cs  at path：

\src\Libraries\Nop.Core\Domain\Common\DisplayDefaultFooterItemSettings.cs

using System;
using System.Collections.Generic;
using System.Text;

using Nop.Core.Configuration;
namespace Nop.Core.Domain.Common
{
    /// <summary>
    /// Display default menu item settings
    /// </summary>
    public class DisplayDefaultFooterItemSettings : ISettings
    {
        /// <summary>
        /// Gets or sets a value indicating whether to display "sitemap" footer item
        /// </summary>
        public bool DisplaySitemapFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "contact us" footer item
        /// </summary>
        public bool DisplayContactUsFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "product search" footer item
        /// </summary>
        public bool DisplayProductSearchFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "news" footer item
        /// </summary>
        public bool DisplayNewsFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "blog" footer item
        /// </summary>
        public bool DisplayBlogFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "forums" footer item
        /// </summary>
        public bool DisplayForumsFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "recently viewed products" footer item
        /// </summary>
        public bool DisplayRecentlyViewedProductsFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "compare products" footer item
        /// </summary>
        public bool DisplayCompareProductsFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "new products" footer item
        /// </summary>
        public bool DisplayNewProductsFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "customer info" footer item
        /// </summary>
        public bool DisplayCustomerInfoFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "customer orders" footer item
        /// </summary>
        public bool DisplayCustomerOrdersFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "customer addresses" footer item
        /// </summary>
        public bool DisplayCustomerAddressesFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "shopping cart" footer item
        /// </summary>
        public bool DisplayShoppingCartFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "wishlist" footer item
        /// </summary>
        public bool DisplayWishlistFooterItem { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether to display "apply vendor account" footer item
        /// </summary>
        public bool DisplayApplyVendorAccountFooterItem { get; set; }
    }
}

step 2：Install data

\src\Libraries\Nop.Services\Installation\UpgradeService.cs

 protected virtual void InstallDisplayDefaultFooterItemSettings()
        {
            var displayDefaultFooterItemSettings = _settingService.LoadSetting<DisplayDefaultFooterItemSettings>();
            var newDisplayDefaultFooterItemSettings = new DisplayDefaultFooterItemSettings
            {
                DisplaySitemapFooterItem = true,
                DisplayContactUsFooterItem = true,
                DisplayProductSearchFooterItem = true,
                DisplayNewsFooterItem = true,
                DisplayBlogFooterItem = true,
                DisplayForumsFooterItem = true,
                DisplayRecentlyViewedProductsFooterItem = true,
                DisplayCompareProductsFooterItem = true,
                DisplayNewProductsFooterItem = true,
                DisplayCustomerInfoFooterItem = true,
                DisplayCustomerOrdersFooterItem = true,
                DisplayCustomerAddressesFooterItem = true,
                DisplayShoppingCartFooterItem = true,
                DisplayWishlistFooterItem = true,
                DisplayApplyVendorAccountFooterItem = true
            };

            displayDefaultFooterItemSettings = newDisplayDefaultFooterItemSettings;

            _settingService.SaveSetting<DisplayDefaultFooterItemSettings>(newDisplayDefaultFooterItemSettings);
        }

   #region Methods
        public void UpgradeData()
        {
            //InstallEmailAccounts();
            //InstallAdminAreaSettings();
            //InstallForumSettings();
            //InstallCaptchaSettings();
            //InstallTopicTemplates();
            //InstallTopics();

            InstallDisplayDefaultFooterItemSettings();
        }
        #endregion

result

// collection: Setting
{
	"_id" : ObjectId("5f762ecea5fd6e5568d09ecc"),
	"GenericAttributes" : [ ],
	"Name" : "Nop.Core.Domain.Common.DisplayDefaultFooterItemSettings, Nop.Core",
	"Value" : null,
	"StoreId" : 0,
	"Settings" : {
		"DisplaySitemapFooterItem" : true,
		"DisplayContactUsFooterItem" : true,
		"DisplayProductSearchFooterItem" : true,
		"DisplayNewsFooterItem" : true,
		"DisplayBlogFooterItem" : true,
		"DisplayForumsFooterItem" : true,
		"DisplayRecentlyViewedProductsFooterItem" : true,
		"DisplayCompareProductsFooterItem" : true,
		"DisplayNewProductsFooterItem" : true,
		"DisplayCustomerInfoFooterItem" : true,
		"DisplayCustomerOrdersFooterItem" : true,
		"DisplayCustomerAddressesFooterItem" : true,
		"DisplayShoppingCartFooterItem" : true,
		"DisplayWishlistFooterItem" : true,
		"DisplayApplyVendorAccountFooterItem" : true
	}
}

register service and display data in Footer ViewComponent

ste[ 3:register service

\src\Presentation\Nop.Web.Framework\DependencyRegistrar.cs

  services.AddTransient<DisplayDefaultFooterItemSettings>(sp =>
            {
                var _settingService = sp.GetService<ISettingService>();
                var value = _settingService.LoadSetting<DisplayDefaultFooterItemSettings>();
                var currentSetting = new DisplayDefaultFooterItemSettings();
                currentSetting = value;
                //do something with it
                return currentSetting;
            });

display