129 lines
3.7 KiB
C#
129 lines
3.7 KiB
C#
using Nirvana.Common;
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using SqlSugar;
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using System;
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using System.Collections.Generic;
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using System.Linq.Expressions;
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using System.Text;
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namespace Nirvana.Data
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{
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public interface IRepository<T> where T : class
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{
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#region 单模型 CRUD 操作
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/// <summary>
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/// 增加一条记录
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/// </summary>
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/// <param name="entity">实体模型</param>
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/// <returns></returns>
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object Add(T entity);
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/// <summary>
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/// 更新一条记录
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/// </summary>
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/// <param name="entity">实体模型</param>
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/// <returns></returns>
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bool Update(T entity);
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/// <summary>
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/// 通过Lamda表达式获取实体
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/// </summary>
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/// <param name="predicate">Lamda表达式（p=>p.Id==Id）</param>
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/// <returns></returns>
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T GetModel(Expression<Func<T, bool>> predicate);
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#endregion
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#region 多模型 操作
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/// <summary>
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/// 增加多条记录，同一模型
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/// </summary>
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/// <param name="TModels">实体模型集合</param>
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/// <returns></returns>
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bool AddList(List<T> TModels);
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/// <summary>
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/// 更新多条记录，同一模型
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/// </summary>
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/// <param name="TModels">实体模型集合</param>
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/// <returns></returns>
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bool UpdateList(List<T> TModels);
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#endregion
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#region 删除操作
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/// <summary>
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/// 通过Lamda表达式，删除一条或多条记录
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/// </summary>
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/// <param name="predicate"></param>
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/// <returns></returns>
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bool Delete(Expression<Func<T, bool>> predicate);
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#endregion
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#region 获取多条数据操作
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/// <summary>
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/// Lamda返回IQueryable集合，延时加载数据
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/// </summary>
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/// <param name="predicate"></param>
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/// <returns></returns>
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List<T> GetListAsync(Expression<Func<T, bool>> predicate);
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#endregion
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#region 验证是否存在
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/// <summary>
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/// 验证当前条件是否存在相同项
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/// </summary>
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bool IsExist(Expression<Func<T, bool>> predicate);
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#endregion
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#region 分页操作
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/// <summary>
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/// 对IQueryable对象进行分页逻辑处理，过滤、查询项、排序对IQueryable操作
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/// </summary>
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/// <param name="pageIndex">当前页码</param>
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/// <param name="pageSize">每页数量</param>
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/// <param name="whereLambda">条件拉姆达表达式</param>
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/// <param name="isAsc">true=正序 false=倒叙</param>
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/// <param name="orderBy">排序拉姆达表达式</param>
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/// <returns></returns>
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PageData<T> GetPageList(int pageIndex, int pageSize,
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Expression<Func<T, bool>> whereLambda, params MutilOrderExpress<T>[] orderBy);
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/// <summary>
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/// 对IQueryable对象进行分页逻辑处理，过滤、查询项、排序对IQueryable操作
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/// </summary>
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/// <param name="pageIndex">当前页码</param>
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/// <param name="pageSize">每页数量</param>
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/// <param name="strwhere">sql拼接条件</param>
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/// <param name="strorder">sql排序自定义</param>
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/// <returns></returns>
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PageData<T> GetPageList(int pageIndex, int pageSize, string strwhere, string strorder);
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#endregion
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}
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public class MutilOrderExpress<T>
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{
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public MutilOrderExpress(Expression<Func<T, object>> expression, OrderByType? orderby)
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{
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this.Expression = expression;
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this.OrderBy = orderby;
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}
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public Expression<Func<T, object>> Expression { get; set; }
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public OrderByType? OrderBy { get; set; }
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}
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}
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