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## v0.4.16

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- 增加 ISelect.AsType 实现弱类型查询，配合 Select<object>().AsType(实体类型)；
- 补充 ISelect.From<T2>；
- 补充 ExpressionTree 单元测试；
- 优化 ToList(a => new Dto())，会按优先级查询 Join 实体属性；
This commit is contained in:
28810
2019-04-16 22:48:11 +08:00
parent 66ec123d8a
commit 0d2191ca85
22 changed files with 1043 additions and 117 deletions
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6
FreeSql/Interface/Curd/ISelect/ISelect0.cs
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@ -71,6 +71,12 @@ namespace FreeSql {
/// <returns></returns>
TSelect AsTable(Func<Type, string, string> tableRule);
/// <summary>
/// 动态Type，在使用 Select&lt;object&gt; 后使用本方法，指定实体类型
/// </summary>
/// <param name="entityType"></param>
/// <returns></returns>
TSelect AsType(Type entityType);
/// <summary>
/// 返回即将执行的SQL语句
/// </summary>
/// <param name="field">指定字段</param>

7
FreeSql/Interface/Curd/ISelect/ISelect1.cs
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@ -106,6 +106,13 @@ namespace FreeSql {
/// <returns></returns>
ISelect<T1> As(string alias = "a");
/// <summary>
/// 多表查询
/// </summary>
/// <typeparam name="T2"></typeparam>
/// <param name="exp"></param>
/// <returns></returns>
ISelect<T1, T2> From<T2>(Expression<Func<ISelectFromExpression<T1>, T2, ISelectFromExpression<T1>>> exp) where T2 : class;
/// <summary>
/// 多表查询
/// </summary>

40
FreeSql/Interface/Curd/ISelect/ISelect2.cs Normal file
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@ -0,0 +1,40 @@
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq.Expressions;
using System.Threading.Tasks;
namespace FreeSql {
public interface ISelect<T1, T2> : ISelect0<ISelect<T1, T2>, T1> where T1 : class where T2 : class {
bool Any(Expression<Func<T1, T2, bool>> exp);
Task<bool> AnyAsync(Expression<Func<T1, T2, bool>> exp);
DataTable ToDataTable<TReturn>(Expression<Func<T1, T2, TReturn>> select);
Task<DataTable> ToDataTableAsync<TReturn>(Expression<Func<T1, T2, TReturn>> select);
List<TReturn> ToList<TReturn>(Expression<Func<T1, T2, TReturn>> select);
Task<List<TReturn>> ToListAsync<TReturn>(Expression<Func<T1, T2, TReturn>> select);
string ToSql<TReturn>(Expression<Func<T1, T2, TReturn>> select);
TReturn ToAggregate<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, TReturn>> select);
Task<TReturn> ToAggregateAsync<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, ISelectGroupingAggregate<T2>, TReturn>> select);
TMember Sum<TMember>(Expression<Func<T1, T2, TMember>> column);
Task<TMember> SumAsync<TMember>(Expression<Func<T1, T2, TMember>> column);
TMember Min<TMember>(Expression<Func<T1, T2, TMember>> column);
Task<TMember> MinAsync<TMember>(Expression<Func<T1, T2, TMember>> column);
TMember Max<TMember>(Expression<Func<T1, T2, TMember>> column);
Task<TMember> MaxAsync<TMember>(Expression<Func<T1, T2, TMember>> column);
TMember Avg<TMember>(Expression<Func<T1, T2, TMember>> column);
Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, TMember>> column);
ISelect<T1, T2> Where(Expression<Func<T1, T2, bool>> exp);
ISelect<T1, T2> WhereIf(bool condition, Expression<Func<T1, T2, bool>> exp);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, T2, TKey>> exp);
ISelect<T1, T2> OrderBy<TMember>(Expression<Func<T1, T2, TMember>> column);
ISelect<T1, T2> OrderByDescending<TMember>(Expression<Func<T1, T2, TMember>> column);
}
}