Implements search functionality and prepares for upcoming paging in v0.3.

API/Helpers/PagedList.cs

@@ -1,7 +1,32 @@
-namespace API.Helpers
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.EntityFrameworkCore;
+
+namespace API.Helpers
 {
-    public class PagedList
+    public class PagedList<T> : List<T>
     {
-        
+        public PagedList(IEnumerable<T> items, int count, int pageNumber, int pageSize)
+        {
+            CurrentPage = pageNumber;
+            TotalPages = (int) Math.Ceiling(count / (double) pageSize);
+            PageSize = pageSize;
+            TotalCount = count;
+            AddRange(items);
+        }
+
+        public int CurrentPage { get; set; }
+        public int TotalPages { get; set; }
+        public int PageSize { get; set; }
+        public int TotalCount { get; set; }
+
+        public static async Task<PagedList<T>> CreateAsync(IQueryable<T> source, int pageNumber, int pageSize)
+        {
+            var count = await source.CountAsync();
+            var items = await source.Skip((pageNumber - 1) * pageSize).Take(pageSize).ToListAsync();
+            return new PagedList<T>(items, count, pageNumber, pageSize);
+        }
     }
 }