17168ERP/web/App_Code/api/adminUserController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using PagedList;
using Newtonsoft.Json;
using System.Collections;


// api/adminUser
//[ezAuthorize(Roles = "admin")]//群組:*
[ezAuthorize]
public class adminUserController : ApiController
{
    private Model.ezEntities _db = new Model.ezEntities();
    // GET api/<controller>
    public IEnumerable<Model.admin> Get()
    {
        var list = _db.admins.ToList();
        if (list == null) throw new HttpResponseException(HttpStatusCode.NotFound);
        return list;
    }

    public IEnumerable<Model.admin> Get(int page, int pageSize = 10, 
        string sortBy="", bool sortDesc=false)
    {
        var list = _db.admins.OrderBy(o=>o.num).ToPagedList(page, pageSize);
        if (list == null) throw new HttpResponseException(HttpStatusCode.NotFound);
        return list;
    }

    // GET api/<controller>/5
    public Model.admin Get(int id)
    {
        var item = _db.admins.Where(q => q.num == id).FirstOrDefault();
        //if (item == null) throw new HttpResponseException(HttpStatusCode.NotFound);
        return item;
    }

    // POST api/<controller>
    public void Post([FromBody] Model.admin item)
    {
    }

    // PUT api/<controller>/5
    public void Put(int id, [FromBody] Model.admin item)
    {
    }

    // DELETE api/<controller>/5
    public void Delete(int id)
    {
        var prod = _db.admins.Where(q => q.num == id).FirstOrDefault(); //刪除該筆資料
        if (prod != null)
        {       

            _db.admins.Remove(prod);
            _db.SaveChanges();//執行

        }
    }



    [HttpGet]
    [Route("api/adminUser/count")]
    public int Count()
    {
        var count = _db.admins.Count();
        return count;
    }
    [HttpPost]
    [Route("api/adminUser/GetList")]
    public IHttpActionResult GetList([FromBody] Model.ViewModel.admin q, int page, int pageSize = 10,
     string sortBy = "", bool sortDesc = false)
    {
        var qry = _db.admins.AsQueryable();

        if (!string.IsNullOrEmpty(q.u_id))
            qry = qry.Where(o => o.u_id.Contains(q.u_id));

        if (!string.IsNullOrEmpty(q.u_name))
            qry = qry.Where(o => o.u_name.Contains(q.u_name));


        if (!string.IsNullOrEmpty(q.power))
            qry = qry.Where(o => o.power == q.power);

        if(q.removeExist.HasValue && q.removeExist.Value)
        {
            // 優化：使用子查詢在數據庫層面執行，避免載入所有會員的 admin_num
            var usedAdminNums = _db.members.Select(b => b.admin_num);
            if (q.num.HasValue && q.num.Value > 0)
            {
                qry = qry.Where(o => !usedAdminNums.Contains(o.num) || o.num == q.num.Value);
            }
            else
            {
                qry = qry.Where(o => !usedAdminNums.Contains(o.num));
            }
        }

        if (sortBy.Equals("u_id"))
        {
            if (sortDesc)
                qry = qry.OrderByDescending(o => o.u_id);
            else
                qry = qry.OrderBy(o => o.u_id);
        }      
        else
            qry = qry.OrderByDescending(o => o.num);

        var count = qry.Count();
        var qryList = (pageSize > 0) ? qry.ToPagedList(page, pageSize).ToList() : qry.ToList();

        var ret = new
        {
             list = qryList.Select(x => new
            {
                num = x.num,
                 u_id = x.u_id,
                 u_name = x.u_name,
                 power = x.power,
               
            }),
            count = count

        };


        if (ret.list == null) throw new HttpResponseException(HttpStatusCode.NotFound);
        return Ok(ret);
    }

    

}