修改挂单功能

web/App_Code/api/lianyouController.cs

@@ -11,7 +11,7 @@ using System.Web.Http;
 /// lianyouController 的摘要描述
 /// </summary>
 [ezAuthorize]
-public class lianyouController: ApiController
+public class lianyouController : ApiController
 {
     private Model.ezEntities _db = new Model.ezEntities();
 
@@ -19,13 +19,34 @@ public class lianyouController: ApiController
     [Route("api/lianyou/getfollowers")]
     public async Task<IHttpActionResult> GetGuadanFollowers(int page, int pageSize, string searchName = null)
     {
-        var qry = _db.followers.AsEnumerable();
-        if(searchName != null)
+        // IQueryable 可讓 EF 在資料庫層面執行過濾和投影
+        var qry = _db.followers.AsQueryable();
+
+        if (!string.IsNullOrEmpty(searchName))
         {
             qry = qry.Where(a => (a.u_name ?? "").Contains(searchName) || (a.phone ?? "").Contains(searchName));
         }
-        var count = qry.Count();
-        var data = qry.OrderBy(a => a.f_number).ToPagedList(page, pageSize);
-        return Ok(new {data = data, count = count});
+
+        var count = await qry.CountAsync();
+
+        // 投影到只需要的欄位
+        var projected = qry
+            .OrderBy(a => a.f_number)
+            .Select(a => new
+            {
+                num = a.num,
+                u_name = a.u_name,
+                phone = a.phone,
+                sex = a.sex,
+            });
+
+        // 分頁
+        var data = projected
+            .Skip((page - 1) * pageSize)
+            .Take(pageSize)
+            .ToList(); // 如果使用 EF Core 可用 ToListAsync()
+
+        return Ok(new { data = data, count = count });
     }
+
 }