// Admin.NET 项目的版权、商标、专利和其他相关权利均受相应法律法规的保护。使用本项目应遵守相关法律法规和许可证的要求。
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//
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// 本项目主要遵循 MIT 许可证和 Apache 许可证（版本 2.0）进行分发和使用。许可证位于源代码树根目录中的 LICENSE-MIT 和 LICENSE-APACHE 文件。
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//
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// 不得利用本项目从事危害国家安全、扰乱社会秩序、侵犯他人合法权益等法律法规禁止的活动！任何基于本项目二次开发而产生的一切法律纠纷和责任，我们不承担任何责任！
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namespace Admin.NET.Core;
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/// <summary>
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/// 分页泛型集合
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/// </summary>
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/// <typeparam name="TEntity"></typeparam>
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public class SqlSugarPagedList<TEntity>
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{
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/// <summary>
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/// 页码
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/// </summary>
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public int Page { get; set; }
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/// <summary>
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/// 页容量
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/// </summary>
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public int PageSize { get; set; }
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/// <summary>
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/// 总条数
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/// </summary>
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public int Total { get; set; }
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/// <summary>
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/// 总页数
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/// </summary>
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public int TotalPages { get; set; }
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/// <summary>
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/// 当前页集合
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/// </summary>
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public IEnumerable<TEntity> Items { get; set; }
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/// <summary>
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/// 是否有上一页
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/// </summary>
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public bool HasPrevPage { get; set; }
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/// <summary>
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/// 是否有下一页
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/// </summary>
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public bool HasNextPage { get; set; }
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}
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/// <summary>
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/// 分页拓展类
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/// </summary>
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public static class SqlSugarPagedExtensions
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{
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/// <summary>
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/// 分页拓展
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/// </summary>
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/// <param name="query"><see cref="ISugarQueryable{TEntity}"/>对象</param>
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/// <param name="pageIndex">当前页码，从1开始</param>
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/// <param name="pageSize">页码容量</param>
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/// <param name="expression">查询结果 Select 表达式</param>
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/// <returns></returns>
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public static SqlSugarPagedList<TResult> ToPagedList<TEntity, TResult>(this ISugarQueryable<TEntity> query, int pageIndex, int pageSize,
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Expression<Func<TEntity, TResult>> expression)
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{
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var total = 0;
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var items = query.ToPageList(pageIndex, pageSize, ref total, expression);
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return CreateSqlSugarPagedList(items, total, pageIndex, pageSize);
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}
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/// <summary>
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/// 分页拓展
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/// </summary>
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/// <param name="query"><see cref="ISugarQueryable{TEntity}"/>对象</param>
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/// <param name="pageIndex">当前页码，从1开始</param>
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/// <param name="pageSize">页码容量</param>
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/// <returns></returns>
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public static SqlSugarPagedList<TEntity> ToPagedList<TEntity>(this ISugarQueryable<TEntity> query, int pageIndex, int pageSize)
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{
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var total = 0;
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var items = query.ToPageList(pageIndex, pageSize, ref total);
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return CreateSqlSugarPagedList(items, total, pageIndex, pageSize);
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}
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/// <summary>
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/// 分页拓展
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/// </summary>
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/// <param name="query"><see cref="ISugarQueryable{TEntity}"/>对象</param>
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/// <param name="pageIndex">当前页码，从1开始</param>
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/// <param name="pageSize">页码容量</param>
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/// <param name="expression">查询结果 Select 表达式</param>
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/// <returns></returns>
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public static async Task<SqlSugarPagedList<TResult>> ToPagedListAsync<TEntity, TResult>(this ISugarQueryable<TEntity> query, int pageIndex, int pageSize,
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Expression<Func<TEntity, TResult>> expression)
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{
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RefAsync<int> total = 0;
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var items = await query.ToPageListAsync(pageIndex, pageSize, total, expression);
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return CreateSqlSugarPagedList(items, total, pageIndex, pageSize);
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}
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/// <summary>
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/// 分页拓展
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/// </summary>
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/// <param name="query"><see cref="ISugarQueryable{TEntity}"/>对象</param>
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/// <param name="pageIndex">当前页码，从1开始</param>
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/// <param name="pageSize">页码容量</param>
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/// <returns></returns>
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public static async Task<SqlSugarPagedList<TEntity>> ToPagedListAsync<TEntity>(this ISugarQueryable<TEntity> query, int pageIndex, int pageSize)
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{
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RefAsync<int> total = 0;
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var items = await query.ToPageListAsync(pageIndex, pageSize, total);
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return CreateSqlSugarPagedList(items, total, pageIndex, pageSize);
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}
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/// <summary>
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/// 脱敏分页拓展
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/// </summary>
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/// <param name="query"><see cref="ISugarQueryable{TEntity}"/>对象</param>
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/// <param name="pageIndex">当前页码，从1开始</param>
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/// <param name="pageSize">页码容量</param>
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/// <returns></returns>
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public static async Task<SqlSugarPagedList<TEntity>> ToPagedListDataMaskAsync<TEntity>(this ISugarQueryable<TEntity> query, int pageIndex, int pageSize) where TEntity : class
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{
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RefAsync<int> total = 0;
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var items = await query.ToPageListAsync(pageIndex, pageSize, total);
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items.ForEach(x => x.MaskSensitiveData());
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return CreateSqlSugarPagedList(items, total, pageIndex, pageSize);
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}
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/// <summary>
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/// 脱敏分页拓展
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/// </summary>
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/// <param name="list">集合对象</param>
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/// <param name="pageIndex">当前页码，从1开始</param>
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/// <param name="pageSize">页码容量</param>
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/// <returns></returns>
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public static SqlSugarPagedList<TEntity> ToPagedListDataMask<TEntity>(this IEnumerable<TEntity> list, int pageIndex, int pageSize) where TEntity : class
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{
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var total = list.Count();
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var items = list.Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList();
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items.ForEach(x => x.MaskSensitiveData());
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return CreateSqlSugarPagedList(items, total, pageIndex, pageSize);
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}
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/// <summary>
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/// 分页拓展
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/// </summary>
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/// <param name="list">集合对象</param>
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/// <param name="pageIndex">当前页码，从1开始</param>
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/// <param name="pageSize">页码容量</param>
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/// <returns></returns>
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public static SqlSugarPagedList<TEntity> ToPagedList<TEntity>(this IEnumerable<TEntity> list, int pageIndex, int pageSize)
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{
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var total = list.Count();
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var items = list.Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList();
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return CreateSqlSugarPagedList(items, total, pageIndex, pageSize);
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}
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/// <summary>
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/// 创建 <see cref="SqlSugarPagedList{TEntity}"/> 对象
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/// </summary>
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/// <typeparam name="TEntity"></typeparam>
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/// <param name="items">分页内容的对象集合</param>
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/// <param name="total">总条数</param>
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/// <param name="pageIndex">当前页码，从1开始</param>
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/// <param name="pageSize">页码容量</param>
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/// <returns></returns>
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private static SqlSugarPagedList<TEntity> CreateSqlSugarPagedList<TEntity>(IEnumerable<TEntity> items, int total, int pageIndex, int pageSize)
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{
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var totalPages = pageSize > 0 ? (int)Math.Ceiling(total / (double)pageSize) : 0;
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return new SqlSugarPagedList<TEntity>
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{
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Page = pageIndex,
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PageSize = pageSize,
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Items = items,
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Total = total,
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TotalPages = totalPages,
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HasNextPage = pageIndex < totalPages,
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HasPrevPage = pageIndex - 1 > 0
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};
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}
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}
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