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using SqlSugar;
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using System.ComponentModel;
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namespace DS.Module.Core.Extensions;
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public static partial class Extensions
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{
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/// <summary>
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/// 多排序方法
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/// </summary>
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/// <typeparam name="TEntity">要排序实体</typeparam>
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/// <param name="source">源</param>
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/// <param name="orderConditions">排序条件</param>
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/// <returns></returns>
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public static ISugarQueryable<TEntity> OrderBy<TEntity>(this ISugarQueryable<TEntity> source,
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SortCondition[] orderConditions)
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{
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orderConditions.NotNull(nameof(orderConditions));
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string orderStr = string.Empty;
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foreach (SortCondition orderCondition in orderConditions)
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{
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orderStr = orderStr +
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$"{orderCondition.SortField} {(orderCondition.ListSortDirection == ListSortDirection.Ascending ? "asc" : "desc")}, ";
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}
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orderStr = orderStr.TrimEnd(", ".ToCharArray());
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return source.OrderBy(orderStr);
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="source"></param>
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/// <param name="page"></param>
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/// <typeparam name="TEntity"></typeparam>
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/// <returns></returns>
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public static DataResult<List<TEntity>> ToQueryPage<TEntity>(this ISugarQueryable<TEntity> source, PageCondition page)
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{
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page.NotNull(nameof(page));
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var result = source.WhereAsync(page.PageIndex, page.PageSize, page.SortConditions);
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var list = result.data;
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var total = result.totalNumber;
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return DataResult<List<TEntity>>.PageList(total, list,MultiLanguageConst.DataQuerySuccess);
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="source"></param>
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/// <param name="pageIndex"></param>
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/// <param name="pageSize"></param>
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/// <param name="orderConditions"></param>
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/// <typeparam name="TEntity"></typeparam>
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/// <returns></returns>
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private static (List<TEntity> data, int totalNumber) WhereAsync<TEntity>(this ISugarQueryable<TEntity> source,
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int pageIndex,
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int pageSize, SortCondition[] orderConditions)
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{
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var total = source.Count();
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ISugarQueryable<TEntity> orderSource;
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if (orderConditions == null || orderConditions.Length == 0)
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{
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// orderSource = source.OrderBy("Id ascending");
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orderSource = source.OrderBy("Id");
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// orderSource = source.OrderBy("GID");
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}
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else
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{
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orderSource = source.OrderBy(orderConditions);
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}
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source = orderSource;
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return (
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source.Count() != 0
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? source.ToPageList(pageIndex, pageSize, ref total)
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: Enumerable.Empty<TEntity>().ToList(), total);
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}
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}
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