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分组聚合查询

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28810
2018-12-27 19:16:49 +08:00
parent ee4e0ab5da
commit c35c69cf20
38 changed files with 553 additions and 501 deletions
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13
FreeSql/Interface/Curd/ISelect/ISelect1.cs
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@ -12,6 +12,13 @@ namespace FreeSql {
/// <param name="select">选择列</param>
/// <returns></returns>
List<TReturn> ToList<TReturn>(Expression<Func<T1, TReturn>> select);
/// <summary>
/// 返回即将执行的SQL语句
/// </summary>
/// <typeparam name="TReturn">返回类型</typeparam>
/// <param name="select">选择列</param>
/// <returns></returns>
string ToSql<TReturn>(Expression<Func<T1, TReturn>> select);
/// <summary>
/// 求和
@ -190,11 +197,11 @@ namespace FreeSql {
ISelect<T1> Where<T2, T3, T4, T5>(Expression<Func<T1, T2, T3, T4, T5, bool>> exp) where T2 : class where T3 : class where T4 : class where T5 : class;
/// <summary>
/// 按选择的列分组，GroupBy(a => a.Name) | GroupBy(a => new{a.Name,a.Time}) | GroupBy(a => new[]{"name","time"})
/// 按选择的列分组，GroupBy(a => a.Name) | GroupBy(a => new{a.Name,a.Time})
/// </summary>
/// <param name="columns"></param>
/// <param name="key"></param>
/// <returns></returns>
ISelect<T1> GroupBy<TKey>(Expression<Func<T1, TKey>> columns);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, TKey>> exp);
/// <summary>
/// 按列排序，OrderBy(a => a.Time)

2
FreeSql/Interface/Curd/ISelect/ISelect10.cs
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@ -15,7 +15,7 @@ namespace FreeSql {
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> GroupBy(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, object>> columns);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TKey>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> OrderBy<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TMember>> column);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TMember>> column);

23
FreeSql/Interface/Curd/ISelect/ISelect2.cs
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@ -1,23 +0,0 @@
using System;
using System.Collections.Generic;
using System.Linq.Expressions;
namespace FreeSql {
public interface ISelect<T1, T2> : ISelect0<ISelect<T1, T2>, T1> where T1 : class where T2 : class {
List<TReturn> ToList<TReturn>(Expression<Func<T1, T2, TReturn>> select);
TMember Sum<TMember>(Expression<Func<T1, T2, TMember>> column);
TMember Min<TMember>(Expression<Func<T1, T2, TMember>> column);
TMember Max<TMember>(Expression<Func<T1, T2, TMember>> column);
TMember Avg<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);
ISelect<T1, T2> GroupBy(Expression<Func<T1, T2, object>> columns);
ISelect<T1, T2> OrderBy<TMember>(Expression<Func<T1, T2, TMember>> column);
ISelect<T1, T2> OrderByDescending<TMember>(Expression<Func<T1, T2, TMember>> column);
}
}

2
FreeSql/Interface/Curd/ISelect/ISelect3.cs
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@ -15,7 +15,7 @@ namespace FreeSql {
ISelect<T1, T2, T3> Where(Expression<Func<T1, T2, T3, bool>> exp);
ISelect<T1, T2, T3> WhereIf(bool condition, Expression<Func<T1, T2, T3, bool>> exp);
ISelect<T1, T2, T3> GroupBy(Expression<Func<T1, T2, T3, object>> columns);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, T2, T3, TKey>> exp);
ISelect<T1, T2, T3> OrderBy<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
ISelect<T1, T2, T3> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, TMember>> column);

2
FreeSql/Interface/Curd/ISelect/ISelect4.cs
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@ -15,7 +15,7 @@ namespace FreeSql {
ISelect<T1, T2, T3, T4> Where(Expression<Func<T1, T2, T3, T4, bool>> exp);
ISelect<T1, T2, T3, T4> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, bool>> exp);
ISelect<T1, T2, T3, T4> GroupBy(Expression<Func<T1, T2, T3, T4, object>> columns);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, T2, T3, T4, TKey>> exp);
ISelect<T1, T2, T3, T4> OrderBy<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
ISelect<T1, T2, T3, T4> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);

2
FreeSql/Interface/Curd/ISelect/ISelect5.cs
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@ -15,7 +15,7 @@ namespace FreeSql {
ISelect<T1, T2, T3, T4, T5> Where(Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
ISelect<T1, T2, T3, T4, T5> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
ISelect<T1, T2, T3, T4, T5> GroupBy(Expression<Func<T1, T2, T3, T4, T5, object>> columns);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, T2, T3, T4, T5, TKey>> exp);
ISelect<T1, T2, T3, T4, T5> OrderBy<TMember>(Expression<Func<T1, T2, T3, T4, T5, TMember>> column);
ISelect<T1, T2, T3, T4, T5> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, T4, T5, TMember>> column);

2
FreeSql/Interface/Curd/ISelect/ISelect6.cs
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@ -15,7 +15,7 @@ namespace FreeSql {
ISelect<T1, T2, T3, T4, T5, T6> Where(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6> GroupBy(Expression<Func<T1, T2, T3, T4, T5, T6, object>> columns);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, T2, T3, T4, T5, T6, TKey>> exp);
ISelect<T1, T2, T3, T4, T5, T6> OrderBy<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, TMember>> column);
ISelect<T1, T2, T3, T4, T5, T6> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, TMember>> column);

2
FreeSql/Interface/Curd/ISelect/ISelect7.cs
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@ -15,7 +15,7 @@ namespace FreeSql {
ISelect<T1, T2, T3, T4, T5, T6, T7> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7> GroupBy(Expression<Func<T1, T2, T3, T4, T5, T6, T7, object>> columns);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TKey>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7> OrderBy<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TMember>> column);
ISelect<T1, T2, T3, T4, T5, T6, T7> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TMember>> column);

2
FreeSql/Interface/Curd/ISelect/ISelect8.cs
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@ -15,7 +15,7 @@ namespace FreeSql {
ISelect<T1, T2, T3, T4, T5, T6, T7, T8> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8> GroupBy(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, object>> columns);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TKey>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8> OrderBy<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TMember>> column);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TMember>> column);

2
FreeSql/Interface/Curd/ISelect/ISelect9.cs
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@ -15,7 +15,7 @@ namespace FreeSql {
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> GroupBy(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, object>> columns);
ISelectGrouping<TKey> GroupBy<TKey>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TKey>> exp);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> OrderBy<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TMember>> column);
ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> OrderByDescending<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TMember>> column);

7
FreeSql/Interface/Curd/ISelect/ISelectFrom.cs
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@ -23,13 +23,6 @@ namespace FreeSql {
/// <returns></returns>
ISelectFromExpression<T1> WhereIf(bool condition, Expression<Func<T1, bool>> exp);
/// <summary>
/// 按选择的列分组，GroupBy(a => a.Name) | GroupBy(a => new{a.Name,a.Time}) | GroupBy(a => new[]{"name","time"})
/// </summary>
/// <param name="columns"></param>
/// <returns></returns>
ISelectFromExpression<T1> GroupBy(Expression<Func<T1, object>> columns);
/// <summary>
/// 按列排序，OrderBy(a => a.Time)
/// </summary>

8
FreeSql/Interface/Curd/ISelect/ISelectGrouping.cs
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@ -33,6 +33,14 @@ namespace FreeSql {
/// <param name="select">选择列</param>
/// <returns></returns>
List<TReturn> ToList<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, TReturn>> select);
/// <summary>
/// 返回即将执行的SQL语句
/// </summary>
/// <typeparam name="TReturn">返回类型</typeparam>
/// <param name="select">选择列</param>
/// <returns></returns>
string ToSql<TReturn>(Expression<Func<ISelectGroupingAggregate<T1>, TReturn>> select);
}
public interface ISelectGroupingAggregate<T1> {