Master.CanYinWu.BLL/ArticleColumnBLL.cs

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using System.Threading.Tasks;
using Master.CanYinWu.DAL;
using Master.CanYinWu.Entity;
using System.Collections.Generic;
using System;
using Master.CanYinWu.Entity.ViewModel;

namespace Master.CanYinWu.BLL
{
    public class ArticleColumnBLL
    {
        private static ArticleColumnDAL dal = new ArticleColumnDAL();

        /// <summary>
        /// 栏目列表
        /// </summary>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <param name="key"></param>
        /// <returns></returns>
        public async Task<Tuple<IEnumerable<ArticleColumnViewModel>, int>> GetList(int pageIndex, int pageSize, string key)
        {
            return await dal.GetList(pageIndex, pageSize, key);
        }

        /// <summary>
        /// 查询父栏目列表
        /// </summary>
        /// <returns></returns>
        public async Task<Tuple<IEnumerable<ArticleColumn>, int>> GetParentColumnList()
        {
            return await dal.GetParentColumnList();
        }

        /// <summary>
        /// 查询父栏目下所有子栏目列表
        /// </summary>
        /// <param name="parentId">父栏目Id</param>
        /// <returns></returns>
        public async Task<Tuple<IEnumerable<ArticleColumn>, int>> GetChildColumnList(int parentId)
        {
            return await dal.GetChildColumnList(parentId);
        }

        /// <summary>
        /// 根据Id查询一条文章栏目信息
        /// </summary>
        /// <param name="id">文章栏目Id</param>
        /// <returns></returns>
        public async Task<ArticleColumn> GetArticleColumnById(int id)
        {
            return await dal.GetArticleColumnById(id);
        }

        /// <summary>
        /// 查询所有的子栏目列表
        /// </summary>
        /// <returns></returns>
        public async Task<Tuple<IEnumerable<ArticleColumn>, int>> GetAllChildColumnList()
        {