public class BaseService<T>:IBaseService<T>,IDenpendecy where T:class
{
//当前操作数据库的实例
private BaseRepository<T, YShowDBEntities> baseRepository = new BaseRepository<T, YShowDBEntities>();
/// <summary>
/// 单表的添加一条记录
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual bool Add(T entity)
{
//调用单表的添加一条记录方法
return baseRepository.Add(entity);
}
/// <summary>
/// 单表的添加多条记录
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual bool AddRange(List<T> entities)
{
//调用单表的添加多条记录
return baseRepository.AddRange(entities);
}
/// <summary>
/// 删除
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual bool Delete(T entity)
{
//调用删除
return baseRepository.Delete(entity);
}
/// <summary>
///删除多个实体
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual bool BatchDelete(List<T> entities)
{
//调用删除多个实体
return baseRepository.BatchDelete(entities);
}
/// <summary>
///删除多个实体根据Id
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual bool BatchDeleteById(params int[] ids)
{
//调用删除多个实体根据Id
return baseRepository.BatchDeleteById(ids);
}
/// <summary>
/// 修改
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual bool Update(T entity)
{
//调用修改
return baseRepository.Update(entity);
}
/// <summary>
/// 查询返回一个集合
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual List<T> QueryList(Expression<Func<T, bool>> lambdaExpression)
{
//调用修改
return baseRepository.QueryList(lambdaExpression);
}
/// <summary>
/// 查询返回一个对象,没有返回null---根据主键查
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual T Query(Expression<Func<T, bool>> lambdaExpression)
{
//调用查询返回一个对象,没有返回null---根据主键查
return baseRepository.Query(lambdaExpression);
}
/// <summary>
///判断是否存在
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual bool Exists(Expression<Func<T, bool>> lambdaExpression)
{
//调用判断是否存在
return baseRepository.Exists(lambdaExpression);
}
/// <summary>
/// 分页查询
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public virtual List<T> QueryPageList<S>(int pageIndex, int pageSize, Expression<Func<T, bool>> whereLambda, Expression<Func<T, S>> orderbyLambda, out int count, bool isAsc = true)
{
//调用分页查询
return baseRepository.QueryPageList(pageIndex, pageSize, whereLambda, orderbyLambda,out count, isAsc);
}
}
来源:CSDN
作者:黑人问号?
链接:https://blog.csdn.net/weixin_45408840/article/details/104704421