using Song.ServiceInterfaces;
using Newtonsoft.Json;
using System.Web;
using WeiSha.Common;
using System.Data;

namespace Song.Site.Student
{
    /// <summary>
    /// SubjectApi 的摘要说明
    /// </summary>
    public class SubjectApi : IHttpHandler
    {
        Song.Entities.Organization org = null;
        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "application/json";
            org = Business.Do<IOrganization>().OrganCurrent();
            if (context.Request["action"] == "get")
            {
                get(context);
            }
        }


        /// <summary>
        /// 获取专业数据
        /// </summary>
        private void get(HttpContext context)
        {
            //Song.Entities.Subject[] sbj = Business.Do<ISubject>().SubjectCount(true, -1);
            
            Song.Entities.Subject[] eas = null;
            eas = Business.Do<ISubject>().SubjectCount(org.Org_ID, "", null, -1, 0);
            foreach (Song.Entities.Subject s in eas)
            {
                if (string.IsNullOrEmpty(s.Sbj_Intro) || s.Sbj_Intro.Trim() == "") continue;
                if (s.Sbj_Intro.Length > 20)
                {
                    s.Sbj_Intro = s.Sbj_Intro.Substring(0, 20) + "...";
                }
            }
            DataTable dt = WeiSha.WebControl.Tree.ObjectArrayToDataTable.To(eas);
            if (string.IsNullOrWhiteSpace(""))
            {
                WeiSha.WebControl.Tree.DataTableTree tree = new WeiSha.WebControl.Tree.DataTableTree();
                tree.IdKeyName = "Sbj_ID";
                tree.ParentIdKeyName = "Sbj_PID";
                tree.TaxKeyName = "Sbj_Tax";
                tree.Root = 0;
                dt = tree.BuilderTree(dt);
            }
            context.Response.Write(JsonConvert.SerializeObject(dt));

        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}