using System.Linq;

namespace BLL
{
    /// <summary>
    /// 帮助文档
    /// </summary>
    public static class DocService
    {


        /// <summary>
        /// 根据主键获取帮助文档
        /// </summary>
        /// <param name="DocId"></param>
        /// <returns></returns>
        public static Model.Doc_Doc GetDocById(string DocId)
        {
            return Funs.DB.Doc_Doc.FirstOrDefault(e => e.DocId == DocId);
        }

        /// <summary>
        /// 添加帮助文档
        /// </summary>
        /// <param name="Doc"></param>
        public static void AddDoc(Model.Doc_Doc Doc)
        {
            Model.SGGLDB db = Funs.DB;
            Model.Doc_Doc newDoc = new Model.Doc_Doc
            {
                DocId = Doc.DocId,
                DocName = Doc.DocName,
                CompileMan = Doc.CompileMan,
                CompileDate = Doc.CompileDate,
                Remark = Doc.Remark
            };
            db.Doc_Doc.InsertOnSubmit(newDoc);
            db.SubmitChanges();
        }

        /// <summary>
        /// 修改帮助文档
        /// </summary>
        /// <param name="Doc"></param>
        public static void UpdateDoc(Model.Doc_Doc Doc)
        {
            Model.SGGLDB db = Funs.DB;
            Model.Doc_Doc newDoc = db.Doc_Doc.FirstOrDefault(e => e.DocId == Doc.DocId);
            if (newDoc != null)
            {
                newDoc.DocName = Doc.DocName;
                newDoc.Remark = Doc.Remark;
                db.SubmitChanges();
            }
        }

        /// <summary>
        /// 根据主键删除帮助文档
        /// </summary>
        /// <param name="DocId"></param>
        public static void DeleteDocById(string DocId)
        {
            Model.SGGLDB db = Funs.DB;
            Model.Doc_Doc Doc = db.Doc_Doc.FirstOrDefault(e => e.DocId == DocId);
            if (Doc != null)
            {
                BLL.CommonService.DeleteAttachFileById(DocId);
                db.Doc_Doc.DeleteOnSubmit(Doc);
                db.SubmitChanges();
            }
        }
    }
}