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update

2881099
2023-03-03 16:06:20 +08:00
parent c5336cb512
commit fbf101103b
2 changed files with 28 additions and 10 deletions
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17
Greed-Loading.md

@@ -77,17 +77,26 @@ new List<Song>(new[] { song1, song2, song3 })
//v3.2.605+ //v3.2.605+
``` ```
## Sub queryable ToList ## Subtable: ToList
> v3.2.650+ > v3.2.650+
```csharp ```csharp
fsql.Select<Song>().ToList(a => new fsql.Select<Topic>().ToList(a => new
{ {
all = a, all = a,
list1 = fsql.Select<Tag>().ToList(), list1 = fsql.Select<T2>().ToList(),
list2 = fsql.Select<SongTag>().Where(b => b.SongId == a.Id).ToList() list2 = fsql.Select<T2>().Where(b => b.TopicId == a.Id).ToList()
}); });
fsql.Select<Topic>()
.GroupBy(a => new { a.Author })
.WithTempQuery(a => new { Author = a.Key.Author, Count = a.Count() })
.ToList(a => new {
a.Author, a.Count,
list1 = fsql.Select<T2>().ToList(),
list2 = fsql.Select<T2>().Where(b => b.Author == a.Author).ToList()
});
``` ```
## Comparison of the Two Ways of IncludeMany ## Comparison of the Two Ways of IncludeMany

21
贪婪加载.md

@@ -76,17 +76,26 @@ new List<Song>(new[] { song1, song2, song3 })
//v3.2.605+ //v3.2.605+
``` ```
## 5、子查询 ToList ## 5、子表ToList
> v3.2.650+ 以下最多执行3次 SQL
```csharp ```csharp
fsql.Select<Song>().ToList(a => new //最多执行3次 SQL
fsql.Select<Topic>().ToList(a => new
{ {
all = a, all = a,
list1 = fsql.Select<Tag>().ToList(), list1 = fsql.Select<T2>().ToList(),
list2 = fsql.Select<SongTag>().Where(b => b.SongId == a.Id).ToList() list2 = fsql.Select<T2>().Where(b => b.TopicId == a.Id).ToList()
}); });
//分组之后，最多执行3次 SQL
fsql.Select<Topic>()
.GroupBy(a => new { a.Author })
.WithTempQuery(a => new { Author = a.Key.Author, Count = a.Count() })
.ToList(a => new {
a.Author, a.Count,
list1 = fsql.Select<T2>().ToList(),
list2 = fsql.Select<T2>().Where(b => b.Author == a.Author).ToList()
});
``` ```
## 6、IncludeMany 两种方式对比 ## 6、IncludeMany 两种方式对比