src/ZKEACMS.Article/Service/ArticleDetailWidgetService.cs

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/* http://www.zkea.net/ 
 * Copyright (c) ZKEASOFT. All rights reserved. 
 * http://www.zkea.net/licenses */

using System;
using Easy;
using Microsoft.AspNetCore.Http;
using Microsoft.EntityFrameworkCore;
using ZKEACMS.Article.Models;
using ZKEACMS.Article.ViewModel;
using ZKEACMS.Widget;
using Microsoft.AspNetCore.Mvc;
using System.Linq;
using Easy.Extend;
using System.Collections.Concurrent;
using Easy.Cache;
using Easy.RepositoryPattern;

namespace ZKEACMS.Article.Service
{
    public class ArticleDetailWidgetService : WidgetService<ArticleDetailWidget>
    {
        private const string ArticleDetailWidgetRelatedPageUrls = "ArticleDetailWidgetRelatedPageUrls";
        private readonly IArticleService _articleService;
        private readonly ConcurrentDictionary<string, object> _allRelatedUrlCache;
        public ArticleDetailWidgetService(IWidgetBasePartService widgetService,
            IArticleService articleService,
            IApplicationContext applicationContext,
            ICacheManager<ConcurrentDictionary<string, object>> cacheManager,
            CMSDbContext dbContext)
            : base(widgetService, applicationContext, dbContext)
        {
            _articleService = articleService;
            _allRelatedUrlCache = cacheManager.GetOrAdd(ArticleDetailWidgetRelatedPageUrls, new ConcurrentDictionary<string, object>());
        }
        private void DismissRelatedPageUrls()
        {
            _allRelatedUrlCache.TryRemove(ArticleDetailWidgetRelatedPageUrls, out var urls);
        }

        public override ServiceResult<ArticleDetailWidget> Add(ArticleDetailWidget item)
        {
            var result = base.Add(item);
            DismissRelatedPageUrls();
            return result;
        }
        public override ServiceResult<ArticleDetailWidget> Update(ArticleDetailWidget item)
        {
            var result = base.Update(item);
            DismissRelatedPageUrls();
            return result;
        }
        public override void DeleteWidget(string widgetId)
        {
            base.DeleteWidget(widgetId);
            DismissRelatedPageUrls();
        }

        public override object Display(WidgetDisplayContext widgetDisplayContext)
        {