new_mdk/CZKJ.CMS.Web/App_Code/ViewHelper.cs

using CZFW.Core.Security;
using CZFW.Framework.Model;
using CZFW.Framework.Tools;
using CZFW.MDB;
using CZFW.MDB.Logic;
using CZFW.MDB.Model;
using CZFW.MDB.Util;
using Microsoft.AspNetCore.Html;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Razor;
using Microsoft.AspNetCore.Routing;
using MongoDB.Bson;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Web;

namespace CZFW.CMS.Web.App_Code
{
    public static class ViewHelper
    {
        /// <summary>
        /// 获取当前页的SEO及分享数据
        /// </summary>
        /// <param name="razorPage"></param>
        /// <returns></returns>
        public static SEOShareModel GetSEOShareModel(this RazorPage<dynamic> razorPage)
        {
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            var res = new SEOShareModel();
            SimpleSysConfigModel sysConfig = SysConfig.GetSimpleProjectInfo(site.SiteName, site.TplName);
            
            if (razorPage.Model is JObject share) ///获取Model数据
            {
                var tp = share.SelectToken($"$.{Constants.SEOSHARE_SEO_PREFIX}.{Constants.SEO_TITLE}");
                res.SEOTitle = tp is null ? null : tp.ToString();
                tp = share.SelectToken($"$.{Constants.SEOSHARE_SEO_PREFIX}.{Constants.SEO_DESCRIPTION}");
                res.SEODescription = tp is null ? null : tp.ToString();
                tp = share.SelectToken($"$.{Constants.SEOSHARE_SEO_PREFIX}.{Constants.SEO_KEYWORDS}");
                res.SEOKeywords = tp is null ? null : tp.ToString();
                tp = share.SelectToken($"$.{Constants.SEOSHARE_SHARE_PREFIX}.{Constants.SHARE_DESCRIPTION}");
                res.ShareDescription = tp is null ? null : tp.ToString();
                tp = share.SelectToken($"$.{Constants.SEOSHARE_SHARE_PREFIX}.{Constants.SHARE_IMAGE}");
                res.ShareImage = tp is null ? null : tp.ToString();
                tp = share.SelectToken($"$.{Constants.SEOSHARE_SHARE_PREFIX}.{Constants.SHARE_TITLE}");
                res.ShareTitle = tp is null ? null : tp.ToString();
                tp = share.SelectToken($"$.{Constants.SEOSHARE_SHARE_PREFIX}.{Constants.SHARE_URL}");
                res.ShareUrl = tp is null ? null : tp.ToString();
            }

            ///获取ViewBag数据
            res.SEOTitle = string.IsNullOrWhiteSpace(res.SEOTitle) ? razorPage.ViewBag.seoTitle : res.SEOTitle;
            res.SEODescription = string.IsNullOrWhiteSpace(res.SEODescription) ? razorPage.ViewBag.seoDescription : res.SEODescription;
            res.SEOKeywords = string.IsNullOrWhiteSpace(res.SEOKeywords) ? razorPage.ViewBag.seoKeywords : res.SEOKeywords;
            res.ShareTitle = string.IsNullOrWhiteSpace(res.ShareTitle) ? razorPage.ViewBag.shareTitle : res.ShareTitle;
            res.ShareUrl = string.IsNullOrWhiteSpace(res.ShareUrl) ? razorPage.ViewBag.shareUrl : res.ShareUrl;
            res.ShareImage = string.IsNullOrWhiteSpace(res.ShareImage) ? razorPage.ViewBag.shareImage : res.ShareImage;
            res.ShareDescription = string.IsNullOrWhiteSpace(res.ShareDescription) ? razorPage.ViewBag.shareDescription : res.ShareDescription;
            string path = razorPage.Context.Request.Path;
            if (string.IsNullOrWhiteSpace(path))
                path = "/";
            string pathAndQuery = path + razorPage.Context.Request.QueryString;
            ///获取SEOSHare表中数据
            if (string.IsNullOrWhiteSpace(res.SEOTitle) && string.IsNullOrWhiteSpace(res.SEOKeywords) && string.IsNullOrWhiteSpace(res.SEODescription) &&
                string.IsNullOrWhiteSpace(res.ShareDescription) && string.IsNullOrWhiteSpace(res.ShareImage) &&
                string.IsNullOrWhiteSpace(res.ShareTitle) && string.IsNullOrWhiteSpace(res.ShareUrl))
            {
                
               
                MongoRepository mongoRepository = new MongoRepository();
                mongoRepository.SetCurrentTable($"{SiteHelper.GetSiteModel(razorPage.Context).TplName}_{Constants.SEOSHARE_TABLE_NAME}");
                var bson = mongoRepository.GetOne($"{{{Constants.SEO_URL}:'{pathAndQuery}'}}");
                if(bson==null)
                    bson = mongoRepository.GetOne($"{{{Constants.SEO_URL}:'{path}'}}");
                if (bson != null)
                {
                    bson.TryGetValue(Constants.SEOSHARE_SEO_PREFIX, out BsonValue seoBson);
                    BsonValue tp;
                    if (string.IsNullOrWhiteSpace(res.SEOTitle) && seoBson != null)
                        res.SEOTitle = seoBson.AsBsonDocument.TryGetValue(Constants.SEO_TITLE, out tp) ? (tp is BsonString ? tp.AsString : null) : null;
                    if (string.IsNullOrWhiteSpace(res.SEODescription) && seoBson != null)
                        res.SEODescription = seoBson.AsBsonDocument.TryGetValue(Constants.SEO_DESCRIPTION, out tp) ? (tp is BsonString ? tp.AsString : null) : null;
                    if (string.IsNullOrWhiteSpace(res.SEOKeywords) && seoBson != null)
                        res.SEOKeywords = seoBson.AsBsonDocument.TryGetValue(Constants.SEO_KEYWORDS, out tp) ? (tp is BsonString ? tp.AsString : null) : null;

                    bson.TryGetValue(Constants.SEOSHARE_SHARE_PREFIX, out BsonValue shareBson);
                    res.ShareDescription = shareBson.AsBsonDocument.TryGetValue(Constants.SHARE_DESCRIPTION, out tp) ? (tp is BsonString ? tp.AsString : null) : null;

                    if (string.IsNullOrWhiteSpace(res.ShareImage) && shareBson != null)
                        res.ShareImage = shareBson.AsBsonDocument.TryGetValue(Constants.SHARE_IMAGE, out tp) ? (tp is BsonString ? tp.AsString : null) : null;
                    if (string.IsNullOrWhiteSpace(res.ShareTitle) && shareBson != null)
                        res.ShareTitle = shareBson.AsBsonDocument.TryGetValue(Constants.SHARE_TITLE, out tp) ? (tp is BsonString ? tp.AsString : null) : null;
                    if (string.IsNullOrWhiteSpace(res.ShareUrl) && shareBson != null)
                        res.ShareUrl = shareBson.AsBsonDocument.TryGetValue(Constants.SHARE_URL, out tp) ? (tp is BsonString ? tp.AsString : null) : null;
                }
            }

            ///获取默认数据
            if (string.IsNullOrWhiteSpace(res.SEOTitle))
                res.SEOTitle = sysConfig.ProjectName;
            if (string.IsNullOrWhiteSpace(res.SEOKeywords))
                res.SEOKeywords = sysConfig.ProjectName;
            if (string.IsNullOrWhiteSpace(res.SEODescription))
                if (!string.IsNullOrWhiteSpace(res.SEOTitle))
                    res.SEODescription = res.SEOTitle;
                else
                    res.SEODescription = sysConfig.ProjectName;
            if (string.IsNullOrWhiteSpace(res.ShareTitle))
                if (!string.IsNullOrWhiteSpace(res.SEOTitle))
                    res.ShareTitle = res.SEOTitle;
                else
                    res.ShareTitle = res.SEOTitle;
            if (string.IsNullOrWhiteSpace(res.ShareDescription))
                if (!string.IsNullOrWhiteSpace(res.SEOTitle))
                    res.ShareDescription = res.SEOTitle;
                else
                    res.ShareDescription = res.SEOTitle;
            if (string.IsNullOrWhiteSpace(res.ShareImage))
                res.ShareImage = sysConfig.Logo;
            if (string.IsNullOrWhiteSpace(res.ShareUrl))
                res.ShareUrl = sysConfig.SiteUrl + path;
            res.ShareImage = RelativeToAbsolutePath(res.ShareImage, razorPage.Context);
            return res;
        }

        //获取当前网站的系统配置数据
        public static dynamic GetSiteConfig(this RazorPage razorPage)
        {
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            var data = SysConfig.SiteConfig(site.SiteName, site.TplName, site.ThemeName);
            return data;
        }

        /// <summary>
        /// 根据导航Id获取导航数据。
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="navId"></param>
        /// <returns></returns>
        public static dynamic GetNavigation(this RazorPage razorPage, string navId)
        {
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            var data = SiteNavigation.GetNavigation(site.SiteName, navId, site.TplName);
            return data;
        }


        //通过id获取单条数据
        public static dynamic Get(this RazorPage razorPage, string id, string pageName = null, string projection = "{}")
        {
            var pageLogic = CZHttpContext.ServiceProvider.GetService(typeof(IPage)) as IPage;
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            if (string.IsNullOrWhiteSpace(pageName))
                pageName = GetPageName(razorPage);
            var bson = pageLogic.GetByName($"{site.TplName}_{pageName}", id, null, projection);
            if (bson == null)
                return null;
            else
            {
                var json = bson.CZToJson();
                dynamic jobject = JObject.Parse(json);
                return jobject;
            }
        }

        //通过id获取多条数据
        public static dynamic Gets(this RazorPage razorPage, string[] ids, string pageName = null, string projection = "{}")
        {
            var pageLogic = CZHttpContext.ServiceProvider.GetService(typeof(IPage)) as IPage;
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            if (string.IsNullOrWhiteSpace(pageName))
                pageName = GetPageName(razorPage);
            var pages = new BsonArray();
            foreach (var id in ids)
            {
                var bson = pageLogic.GetByName($"{site.TplName}_{pageName}", id, null, projection);
                pages.Add(bson);
            }
            if (pages == null || pages.Count < 0)
                return null;
            else
            {
                var json = pages.CZToJson();
                dynamic jobject = JObject.Parse(json);
                return jobject;
            }
        }










        /// <summary>
        /// 按条件获取一条数据
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="pageName">如果为空，则取当前页面的pageName</param>
        /// <param name="query"></param>
        /// <param name="projection"></param>
        /// <param name="sort"></param>
        /// <returns></returns>
        public static dynamic GetOne(this RazorPage razorPage, string pageName = null, string query = "{}", string projection = "{}", string sort = "{'sort_order':-1}")
        {
            var pageLogic = CZHttpContext.ServiceProvider.GetService(typeof(IPage)) as IPage;
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            if (string.IsNullOrWhiteSpace(pageName))
                pageName = GetPageName(razorPage);
            query = AssureLangPara(query, site.ThemeName);
            var bson = pageLogic.GetOneByName(site.SiteName, $"{site.TplName}_{pageName}", query, projection, sort);
            if (bson == null)
                return null;
            else
            {
                var json = bson.CZToJson();
                dynamic jarray = JObject.Parse(json);
                return jarray;
            }
        }
        /// <summary>
        /// 获取下一条
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="projection"></param>
        /// <param name="sort">默认按创建时间取</param>
        /// <returns></returns>
        public static dynamic GetNext(this RazorPage<dynamic> razorPage, string projection = "{_id:1, title:1, summary:1, image:1}", string sort = "{sort_order:-1,modify_time:-1}")
        {
            var model = razorPage.Model;
            var pageName = razorPage.Context.GetRouteValue("pageName").ToString();
            var sortOrder = model.sort_order;
            var query = $"{{sort_order:{{$lt:{sortOrder}}}}}";
            query = AssureLangPara(query, SiteHelper.GetSiteModel(razorPage.Context).ThemeName);
            return GetOne(razorPage: razorPage, pageName: pageName, query: query, projection: projection, sort: sort);
        }

        /// <summary>
        /// 获取上一条
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="projection"></param>
        /// <param name="sort">默认按创建时间取</param>
        /// <returns></returns>
        public static dynamic GetPre(this RazorPage<dynamic> razorPage, string projection = "{_id:1, title:1, summary:1, image:1}", string sort = "{sort_order:1,modify_time:1}")
        {
            var model = razorPage.Model;
            var pageName = razorPage.Context.GetRouteValue("pageName").ToString();
            var query = $"{{sort_order:{{$gt:{model.sort_order}}}}}";
            query = AssureLangPara(query, SiteHelper.GetSiteModel(razorPage.Context).ThemeName);
            return GetOne(razorPage: razorPage, pageName: pageName, query: query, projection: projection, sort: sort);
        }

        /// <summary>
        /// 获取数据列表
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="pageName">如果为空，则为当前页面的pageName</param>
        /// <param name="query"></param>
        /// <param name="type"></param>
        /// <param name="projection"></param>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <param name="sort"></param>
        /// <returns></returns>
        public static dynamic GetList(this RazorPage razorPage, string pageName = null, string query = "{}", string type = null, string projection = "{}", int pageIndex = 1, int pageSize = 12, string sort = "{'sort_order':-1}")
        {
            var pageLogic = CZHttpContext.ServiceProvider.GetService(typeof(IPage)) as IPage;
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            if (string.IsNullOrWhiteSpace(pageName))
                pageName = GetPageName(razorPage);
            query = AssureLangPara(query, site.ThemeName);
            var bson = pageLogic.GetListByName(site.SiteName, $"{site.TplName}_{pageName}", type, query, projection, pageIndex, pageSize, sort);
            if (bson == null)
                return null;
            else
            {
                var json = bson.CZToJson();
                dynamic jarray = JArray.Parse(json);
                return jarray;
            }
        }

        /// <summary>
        /// 获取随机相关记录，通常在详情页的下方会有获取相关记录。获取的记录会根据查询结果随机取出，并且支持排除当前记录
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="selfId">当前记录Id，避免数据少时将当前显示的数据给取出来</param>
        /// <param name="size">需要取的相关记录的条数</param>
        /// <param name="query">查询条件。</param>
        /// <param name="projection">需要取回的字段</param>
        /// <returns></returns>
        public static dynamic GetRelated(this RazorPage razorPage, object selfId = null, int size = 4, string query = "{}", string projection = "{}")
        {
            var pageLogic = CZHttpContext.ServiceProvider.GetService(typeof(IPage)) as IPage;
            var (siteName, tplName, tableName) = SiteInfo(razorPage);
            var self = selfId == null ? string.Empty : selfId.ToString();
            query = AssureLangPara(query, SiteHelper.GetSiteModel(razorPage.Context).ThemeName);
            var res = pageLogic.GetRelated(siteName, tableName, self, query, projection, size);
            dynamic re = JArray.Parse(res.CZToJson());
            return re;
        }

        ///获取条数
        public static int GetCount(this RazorPage razorPage, string query = "{}")
        {
            var pageLogic = CZHttpContext.ServiceProvider.GetService(typeof(IPage)) as IPage;
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            var pageName = GetPageName(razorPage);
            query = AssureLangPara(query, site.ThemeName);
            var count = pageLogic.GetCount(site.SiteName, $"{site.TplName}_{pageName}", query);
            return (int)count;
        }

        public static int GetQryCount(this RazorPage razorPage, string pageName = null, string query = "{}")
        {
            var pageLogic = CZHttpContext.ServiceProvider.GetService(typeof(IPage)) as IPage;
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            if (string.IsNullOrWhiteSpace(pageName))
                pageName = GetPageName(razorPage);
            query = AssureLangPara(query, site.ThemeName);
            var count = pageLogic.GetCount(site.SiteName, $"{site.TplName}_{pageName}", query);
            return (int)count;
        }

        //获取分页对象。
        public static PagerModel GetPager(this RazorPage razorPage)
        {
            int pageIndex = 1, pageSize = 12;
            int total = razorPage.ViewBag.total;
            var query = razorPage.Context.Request.Query;
            if (query.ContainsKey(CMSWebConstant.PAGE_INDEX_QUERY_STRING_KEY))
            {
                int.TryParse(query[CMSWebConstant.PAGE_INDEX_QUERY_STRING_KEY], out pageIndex);
            }
            if (query.ContainsKey(CMSWebConstant.PAGE_SIZE_QUERY_STRING_KEY))
                int.TryParse(query[CMSWebConstant.PAGE_SIZE_QUERY_STRING_KEY], out pageSize);
            var pager = new PagerModel(total, pageIndex, pageSize);
            return pager;
        }

        //替换当前页面url中的pageindex参数。主要用于配合生成分页列表。      
        /// <param name="razorPage"></param>
        /// <param name="pageIndex">要替换的pageIndex值</param>
        /// <param name="absoluteUrl">是否生成绝对路径</param>
        /// <returns>更新pageIndex后的路径</returns>
        public static string ReplacePageIndex(this RazorPage razorPage, int pageIndex, bool absoluteUrl = false)
        {
            var url = razorPage.Context.Request.Path.ToString();
            var query = razorPage.Context.Request.Query;
            var querystring = $"?{CMSWebConstant.PAGE_INDEX_QUERY_STRING_KEY}={pageIndex}";
            foreach (var item in query)
            {
                if (item.Key != CMSWebConstant.PAGE_INDEX_QUERY_STRING_KEY)
                    querystring += $"&{item.Key}={item.Value}";

            }
            url = url + querystring;
            if (absoluteUrl)
            {
                var request = razorPage.Context.Request;
                url = $"{request.Scheme}://{request.Host.Host}{url}";
            }
            return url;
        }

        //替换当前页面url中的pageSize参数。主要用于配合生成分页列表。      
        /// <param name="razorPage"></param>
        /// <param name="pageIndex">要替换的pageSize值</param>
        /// <param name="absoluteUrl">是否生成绝对路径</param>
        /// <returns>更新pageIndex后的路径</returns>
        public static string ReplacePageSize(this RazorPage razorPage, int pageSize, bool absoluteUrl = false)
        {
            var url = razorPage.Context.Request.Path.ToString();
            var query = razorPage.Context.Request.Query;
            var querystring = $"?{CMSWebConstant.PAGE_SIZE_QUERY_STRING_KEY}={pageSize}";
            foreach (var item in query)
            {
                if (item.Key != CMSWebConstant.PAGE_SIZE_QUERY_STRING_KEY)
                    querystring += $"&{item.Key}={item.Value}";
            }
            url = url + querystring;
            if (absoluteUrl)
            {
                var request = razorPage.Context.Request;
                url = $"{request.Scheme}://{request.Host.Host}{url}";
            }
            return url;
        }

        public static string ReplaceQueryString(string url, string key, string newVal)
        {
            var query = url;
            var reg = new Regex($"{key}=\\w*");
            var match = reg.Match(query);
            var newquery = $"{key}={newVal}";

            if (match.Success)
            {
                url = reg.Replace(query, newquery);
            }
            else
            {
                if (url.Contains("?"))
                    url += $"&{newquery}";
                else
                    url += $"?{newquery}";
            }
            return url;
        }

        /// <summary>
        /// 生成Url工具
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="action">不填时为与当前页面的action一致。例如当前时List，则生成的url的action也为List</param>
        /// <param name="pageName">不填时与当前页面的pageName一致</param>
        /// <param name="id">Id参数，通常在生成详情页时使用。</param>
        /// <param name="query">查询字符串，需要将所有的查询字符串完整传入。且需要在传入前完成加密</param>
        /// <param name="absoluteUrl">是否生成绝对路径url</param>
        /// <returns></returns>
        public static string Url(this RazorPage razorPage,
            string action = null,
            string pageName = null,
            object id = null,
            string query = null,
            bool absoluteUrl = false)
        {
            string _id = null;
            if (id != null)
                _id = id.ToString();
            var route = razorPage.Context.GetRouteData();
            if (string.IsNullOrWhiteSpace(pageName))
            {
                pageName = route.Values["pageName"].ToString();
            }
            if (string.IsNullOrWhiteSpace(action))
            {
                action = route.Values["action"].ToString();
            }
            if (!string.IsNullOrWhiteSpace(_id) && route.Values.ContainsKey("id"))
            {
                _id = route.Values["id"].ToString();
            }
            if (action.ToLower() == "list")
                action = null;
            else
            {
                if (action.ToLower() == "detail")
                {
                    action = $"/{action}";
                }
                else
                {
                    action = $"/{action}.html";
                }
            }
            string lang = SiteHelper.GetSiteModel(razorPage.Context).ThemeName;
            if (lang != SysConfig.DefaultLanguage())
                lang = $"/{lang}";
            if (!string.IsNullOrWhiteSpace(_id))
                _id = $"/{_id}.html";
            var url = $"/{lang}/{pageName}{action}{_id}";
            if (!string.IsNullOrWhiteSpace(query))
                url = $"{url}?{query}";

            if (absoluteUrl)
            {
                var request = razorPage.Context.Request;
                url = $"{request.Scheme}://{request.Host.Host}{url}";
            }
            return url;
        }


        public static string UrlDetail(this RazorPage razorPage, object id, string pageName = null)
        {
            return Url(razorPage, "detail", id: id, pageName: pageName);
        }

        public static string UrlList(this RazorPage razorPage,
            string pageName = null,
            string qry = null,
            string type = null,
            string prj = null,
            string st = null,
            string view = null,
            int pageIndex = 0,
            int pageSize = 12,
            string otherQuery = null,
            int total = 0)
        {
            var query = string.Empty;
            if (!string.IsNullOrWhiteSpace(qry))
                query += $"qry={DesEncrypt.Encrypt(qry)}&";
            if (!string.IsNullOrWhiteSpace(prj))
                query += $"prj={DesEncrypt.Encrypt(prj)}&";
            if (!string.IsNullOrWhiteSpace(st))
                query += $"st={DesEncrypt.Encrypt(st)}&";
            if (!string.IsNullOrWhiteSpace(view))
                query += $"view={view}&";
            if (pageIndex > 0)
                query += $"pageIndex={pageIndex}&";
            if (pageSize > 0)
                query += $"pageSize={pageSize}&";
            if (total > 0)
                query += $"total={total}&";
            if (!string.IsNullOrWhiteSpace(otherQuery))
                query += otherQuery;
            if (query.EndsWith("&"))
                query.Remove(query.Length - 1);
            return Url(razorPage, "list", pageName, null, query);
        }
        /// <summary>
        /// 获取分类对象
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="cateName">分类的cate_name，就是分类本身，也是分类对象的根节点的cate_name值。该值是在建模时填入的。</param>
        /// <param name="descendants">分类的路径。 当分类有多层时，从外到内，每一层的cate_name</param>
        /// <returns></returns>
        public static dynamic GetCategory(this RazorPage razorPage, object cateName, params object[] descendants)
        {
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            var cate = CategoryRepository.GetCategory(site.SiteName, cateName.ToString(), site.TplName, site.ThemeName);
            BsonDocument res = null;
            if (cate == null) return null;
            if (descendants.Count() == 0)
                res = cate;
            else
            {
                if (!cate.Contains(Constants.CATEGORY_CHILDREN_FIELD))
                    return null;
                var children = cate[Constants.CATEGORY_CHILDREN_FIELD].AsBsonArray;
                if (children.Count == 0)
                    return null;
                foreach (var item1 in descendants)
                {
                    var item = item1.ToString();
                    res = GetCategoryChildByCateName(children, item);
                    if (res == null)
                        return null;
                    if (res.Contains(Constants.CATEGORY_CHILDREN_FIELD) && res[Constants.CATEGORY_CHILDREN_FIELD].IsBsonArray)
                        children = res[Constants.CATEGORY_CHILDREN_FIELD].AsBsonArray;
                    else
                        children = new BsonArray();
                }
            }
            dynamic obj = JObject.Parse(res.CZToJson());
            return obj;
        }

        /// <summary>
        /// 获取分类对象的名称。用法与GetCategory一致
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="cateName"></param>
        /// <param name="descendants"></param>
        /// <returns></returns>
        public static string GetCateNameByStringIds(this RazorPage razorPage, object cateName, params object[] descendants)
        {
            var cate = GetCategory(razorPage, cateName.ToString(), descendants);
            if (cate == null)
                return null;
            return cate[Constants.CATEGORY_TITLE_FIELD];
        }


        /// <summary>
        /// 获取分类对象的名称。用法与GetCategory一致
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="cateName"></param>
        /// <param name="descendants"></param>
        /// <returns></returns>
        public static string GetCateName(this RazorPage razorPage, object cateName, JArray descendants = null)
        {
            var items = new string[] { };
            if (descendants != null)
                items = descendants.ToObject<string[]>();
            var cate = GetCategory(razorPage, cateName.ToString(), items);
            if (cate == null)
                return null;
            return cate[Constants.CATEGORY_TITLE_FIELD];
        }
        /// <summary> 
        /// 获取分类对象的名称。用法与GetCategory一致   by:cr
        /// </summary>
        /// <param name="razorPage"></param>
        /// <param name="cateName"></param>
        /// <param name="descendants"></param>
        /// <returns></returns>
        public static dynamic GetCate2(this RazorPage razorPage, object cateName, JArray descendants = null)
        {
            var items = new string[] { };
            if (descendants != null)
                items = descendants.ToObject<string[]>();
            var cate = GetCategory(razorPage, cateName.ToString(), items);
            if (cate == null)
                return null;
            return cate;
        }

        //从当前url的查询字符串中获取值
        public static string GetQueryString(this RazorPage razorPage, string key)
        {
            var query = razorPage.Context.Request.Query[key];
            return query;
        }
        static BsonDocument GetCategoryChildByCateName(BsonArray children, string cateName)
        {
            return children.SingleOrDefault(x => x.AsBsonDocument.Contains(Constants.CATEGORY_ID_FIELD) && x[Constants.CATEGORY_ID_FIELD].AsString == cateName)?.AsBsonDocument;
        }



        static string GetPageName(RazorPage razorPage)
        {
            return razorPage.Context.GetRouteValue("pageName").ToString();
        }

        static (string siteName, string tplName, string tableName) SiteInfo(RazorPage razorPage)
        {
            var site = SiteHelper.GetSiteModel(razorPage.Context);
            return (site.SiteName, site.TplName, $"{site.TplName}_{GetPageName(razorPage)}");
        }

        public static string AssureLangPara(string query, string lang)
        {
            var obj = JObject.Parse(query);
            if (!obj.ContainsKey(Constants.LANG_FIELD))
                obj[Constants.LANG_FIELD] = lang;
            return obj.ToString();
        }

        public static string RelativeToAbsolutePath(string path, HttpContext razorPage)
        {
            if (string.IsNullOrWhiteSpace(path))
                return null;
            var host = $"{razorPage.Request.Scheme}://{razorPage.Request.Host}";
            if (path.Contains(host))
                return path;
            if (!path.StartsWith("/"))
                path = $"/{path}";
            var res = $"{host}{path}";
            return res;
        }

        public static string UrlDecode(string uriComponent) {
            var res = HttpUtility.UrlDecode(uriComponent);
            return res;
        }
    }
}