Song.ServiceImpls/KnowledgeCom.cs

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

using WeiSha.Common;
using Song.Entities;

using WeiSha.Data;
using Song.ServiceInterfaces;
using System.Xml;
using System.Data.Common;



namespace Song.ServiceImpls
{
    public class KnowledgeCom : IKnowledge
    {


        #region IKnowledge 成员

        public int KnowledgeAdd(Knowledge entity)
        {
            entity.Kn_CrtTime = DateTime.Now;
            Song.Entities.Organization org = Business.Do<IOrganization>().OrganCurrent();
            if (org != null)
            {
                entity.Org_ID = org.Org_ID;
                entity.Org_Name = org.Org_Name;
            }
            return Gateway.Default.Save<Knowledge>(entity);
        }

        public void KnowledgeSave(Knowledge entity)
        {
            Gateway.Default.Save<Knowledge>(entity);
        }

        public void KnowledgeDelete(int identify)
        {
            Gateway.Default.Delete<Knowledge>(Knowledge._.Kn_ID == identify);
        }

        public Knowledge KnowledgeSingle(int identify)
        {
            return Gateway.Default.From<Knowledge>().Where(Knowledge._.Kn_ID == identify).ToFirst<Knowledge>();
        }

        public Knowledge KnowledgePrev(int couid, int kns, int id)
        {
            WhereClip wc = new WhereClip();
            if (couid >= 0) wc.And(Knowledge._.Cou_ID == couid);
            if (kns > 0) wc.And(Knowledge._.Kns_ID == kns);
            return Gateway.Default.From<Knowledge>().OrderBy(Knowledge._.Kn_ID.Desc)
               .Where(wc && Knowledge._.Kn_ID > id).ToFirst<Knowledge>();
        }

        public Knowledge KnowledgeNext(int couid, int kns, int id)