/// <summary>
/// 单表数据删除
/// </summary>
/// <returns>删除条目数</returns>
public async Task <int> DeleteAsync()
{
return(await SqlHelper.ExecuteAsync(
DC.Conn,
DC.SqlProvider.GetSQL <M>(UiMethodEnum.DeleteAsync)[0],
DC.GetParameters()));
}
/// <summary>
/// 单表单值查询
/// </summary>
/// <typeparam name="V">int/long/decimal/...</typeparam>
public async Task <V> QuerySingleValueAsync <V>()
{
return(await SqlHelper.ExecuteScalarAsync <V>(
DC.Conn,
DC.SqlProvider.GetSQL <M>(UiMethodEnum.QuerySingleValueAsync)[0],
DC.GetParameters()));
}
public async Task <List <VM> > QueryListAsync <VM>(Expression <Func <VM> > func)
{
SelectMHandle(func);
return((await SqlHelper.QueryAsync <VM>(
DC.Conn,
DC.SqlProvider.GetSQL <VM>(UiMethodEnum.JoinQueryListAsync)[0],
DC.GetParameters())).ToList());
}
/// <summary>
/// 单表单条数据查询
/// </summary>
/// <typeparam name="VM">ViewModel</typeparam>
public async Task <VM> QueryFirstOrDefaultAsync <VM>(Expression <Func <VM> > func)
{
SelectMHandle(func);
return(await SqlHelper.QueryFirstOrDefaultAsync <VM>(
DC.Conn,
DC.SqlProvider.GetSQL <VM>(UiMethodEnum.JoinQueryFirstOrDefaultAsync)[0],
DC.GetParameters()));
}
/// <summary>
/// 多表单条数据查询
/// </summary>
public async Task <M> QueryFirstOrDefaultAsync <M>()
{
SelectMHandle <M>();
return(await SqlHelper.QueryFirstOrDefaultAsync <M>(
DC.Conn,
DC.SqlProvider.GetSQL <M>(UiMethodEnum.JoinQueryFirstOrDefaultAsync)[0],
DC.GetParameters()));
}
/// <summary>
/// 插入单条数据
/// </summary>
/// <returns>插入条目数</returns>
public async Task <int> CreateAsync(M m)
{
DC.GetProperties(m);
return(await SqlHelper.ExecuteAsync(
DC.Conn,
DC.SqlProvider.GetSQL <M>(UiMethodEnum.CreateAsync)[0],
DC.GetParameters()));
}
/// <summary>
/// 批量插入数据
/// </summary>
/// <returns>插入条目数</returns>
public async Task <int> CreateBatchAsync(IEnumerable <M> mList)
{
await DC.GetProperties(mList);
return(await SqlHelper.ExecuteAsync(
DC.Conn,
DC.SqlProvider.GetSQL <M>(UiMethodEnum.CreateBatchAsync)[0],
DC.GetParameters()));
}
/// <summary>
/// 批量插入数据
/// </summary>
/// <returns>插入条目数</returns>
public async Task <int> CreateBatchAsync(IEnumerable <M> mList)
{
return(await DC.BDH.StepProcess(mList, 15, async list =>
{
DC.ResetConditions();
DC.GetProperties(list);
return await SqlHelper.ExecuteAsync(
DC.Conn,
DC.SqlProvider.GetSQL <M>(UiMethodEnum.CreateBatchAsync)[0],
DC.GetParameters());
}));
}
/// <summary>
/// 多表分页查询
/// </summary>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">每页条数</param>
public async Task <PagingList <M> > QueryPagingListAsync <M>(int pageIndex, int pageSize)
{
var result = new PagingList <M>();
result.PageIndex = pageIndex;
result.PageSize = pageSize;
var paras = DC.GetParameters();
var sql = DC.SqlProvider.GetSQL <M>(UiMethodEnum.JoinQueryPagingListAsync, result.PageIndex, result.PageSize);
result.TotalCount = await SqlHelper.ExecuteScalarAsync <long>(DC.Conn, sql[0], paras);
result.Data = (await SqlHelper.QueryAsync <M>(DC.Conn, sql[1], paras)).ToList();
return(result);
}
/// <summary>
/// 单表分页查询
/// </summary>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">每页条数</param>
public async Task <PagingList <M> > QueryPagingListAsync <M>(PagingQueryOption option)
{
SelectMHandle <M>();
OrderByOptionHandle(option);
var result = new PagingList <M>();
result.PageIndex = option.PageIndex;
result.PageSize = option.PageSize;
var paras = DC.GetParameters();
var sql = DC.SqlProvider.GetSQL <M>(UiMethodEnum.JoinQueryPagingListAsync, result.PageIndex, result.PageSize);
result.TotalCount = await SqlHelper.ExecuteScalarAsync <long>(DC.Conn, sql[0], paras);
result.Data = (await SqlHelper.QueryAsync <M>(DC.Conn, sql[1], paras)).ToList();
return(result);
}
/// <summary>
/// 查询是否存在符合条件的数据
/// </summary>
public async Task <bool> ExistAsync()
{
var count = await SqlHelper.ExecuteScalarAsync <long>(
DC.Conn,
DC.SqlProvider.GetSQL <M>(UiMethodEnum.ExistAsync)[0],
DC.GetParameters());
if (count > 0)
{
return(true);
}
else
{
return(false);
}
}