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update

28810
2020-04-16 03:00:01 +08:00
parent 26b5cd4e89
commit 001cc6b76c
5 changed files with 158 additions and 65 deletions
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180
DbContext.md

@@ -16,12 +16,12 @@ FreeSql.DbContext 实现类似 EFCore 使用习惯，跟踪对象状态，最终
0、通用方法，为啥是0？？？ 0、通用方法，为啥是0？？？
``` ```
using (var ctx = fsql.CreateDbContext()) { using (var ctx = fsql.CreateDbContext()) {
//var db1 = ctx.Set<Song>(); //var db1 = ctx.Set<Song>();
//var db2 = ctx.Set<Tag>(); //var db2 = ctx.Set<Tag>();
var item = new Song { }; var item = new Song { };
ctx.Add(item); ctx.Add(item);
ctx.SaveChanges(); ctx.SaveChanges();
} }
``` ```
@@ -32,44 +32,108 @@ using (var ctx = fsql.CreateDbContext()) {
```csharp ```csharp
public class SongContext : DbContext { public class SongContext : DbContext {
public DbSet<Song> Songs { get; set; } public DbSet<Song> Songs { get; set; }
public DbSet<Song> Tags { get; set; } public DbSet<Tag> Tags { get; set; }
protected override void OnConfiguring(DbContextOptionsBuilder builder) { protected override void OnConfiguring(DbContextOptionsBuilder builder) {
builder.UseFreeSql(dbcontext_01.Startup.Fsql); builder.UseFreeSql(GlobalVar.fsql);
} //这里直接指定一个静态的 IFreeSql 对象即可，切勿重新 Build()
}
//每个 DbContext 只触发一次
protected override void OnModelCreating(ICodeFirst codefirst)
{
codefirst.Entity<Song>(eb =>
{
eb.ToTable("tb_song");
eb.Ignore(a => a.Field1);
eb.Property(a => a.Title).HasColumnType("varchar(50)").IsRequired();
eb.Property(a => a.Url).HasMaxLength(100);
eb.Property(a => a.RowVersion).IsRowVersion();
eb.Property(a => a.CreateTime).HasDefaultValueSql("current_timestamp");
eb.HasKey(a => a.Id);
eb.HasIndex(a => new { a.Id, a.Title }).IsUnique().HasName("idx_xxx11");
//一对多、多对一
eb.HasOne(a => a.Type).HasForeignKey(a => a.TypeId).WithMany(a => a.Songs);
//多对多
eb.HasMany(a => a.Tags).WithMany(a => a.Songs, typeof(Song_tag));
});
codefirst.Entity<SongType>(eb =>
{
eb.HasMany(a => a.Songs).WithOne(a => a.Type).HasForeignKey(a => a.TypeId);
eb.HasData(new[]
{
new SongType
{
Id = 1,
Name = "流行",
Songs = new List<Song>(new[]
{
new Song{ Title = "真的爱你" },
new Song{ Title = "爱你一万年" },
})
},
new SongType
{
Id = 2,
Name = "乡村",
Songs = new List<Song>(new[]
{
new Song{ Title = "乡里乡亲" },
})
},
});
});
codefirst.SyncStructure<SongType>();
codefirst.SyncStructure<Song>();
}
} }
public class SongType
{
public int Id { get; set; }
public string Name { get; set; }
public class Song { public List<Song> Songs { get; set; }
[Column(IsIdentity = true)]
public int Id { get; set; }
public DateTime? Create_time { get; set; }
public bool? Is_deleted { get; set; }
public string Title { get; set; }
public string Url { get; set; }
public virtual ICollection<Tag> Tags { get; set; }
} }
public class Song_tag { public class Song
public int Song_id { get; set; } {
public virtual Song Song { get; set; } [Column(IsIdentity = true)]
public int Id { get; set; }
public string Title { get; set; }
public string Url { get; set; }
public DateTime CreateTime { get; set; }
public int Tag_id { get; set; } public int TypeId { get; set; }
public virtual Tag Tag { get; set; } public SongType Type { get; set; }
public List<Tag> Tags { get; set; }
public int Field1 { get; set; }
public long RowVersion { get; set; }
} }
public class Song_tag
{
public int Song_id { get; set; }
public Song Song { get; set; }
public class Tag { public int Tag_id { get; set; }
[Column(IsIdentity = true)] public Tag Tag { get; set; }
public int Id { get; set; } }
public int? Parent_id { get; set; } public class Tag
public virtual Tag Parent { get; set; } {
[Column(IsIdentity = true)]
public int Id { get; set; }
public decimal? Ddd { get; set; } public string Name { get; set; }
public string Name { get; set; }
public virtual ICollection<Song> Songs { get; set; } public List<Song> Songs { get; set; }
public virtual ICollection<Tag> Tags { get; set; }
} }
``` ```
@@ -80,30 +144,30 @@ long id = 0;
using (var ctx = new SongContext()) { using (var ctx = new SongContext()) {
var song = new Song { }; var song = new Song { };
await ctx.Songs.AddAsync(song); await ctx.Songs.AddAsync(song);
id = song.Id; id = song.Id;
var adds = Enumerable.Range(0, 100) var adds = Enumerable.Range(0, 100)
.Select(a => new Song { Create_time = DateTime.Now, Is_deleted = false, Title = "xxxx" + a, Url = "url222" }) .Select(a => new Song { Create_time = DateTime.Now, Is_deleted = false, Title = "xxxx" + a, Url = "url222" })
.ToList(); .ToList();
await ctx.Songs.AddRangeAsync(adds); await ctx.Songs.AddRangeAsync(adds);
for (var a = 0; a < adds.Count; a++) for (var a = 0; a < adds.Count; a++)
adds[a].Title = "dkdkdkdk" + a; adds[a].Title = "dkdkdkdk" + a;
ctx.Songs.UpdateRange(adds); ctx.Songs.UpdateRange(adds);
ctx.Songs.RemoveRange(adds.Skip(10).Take(20).ToList()); ctx.Songs.RemoveRange(adds.Skip(10).Take(20).ToList());
//ctx.Songs.Update(adds.First()); //ctx.Songs.Update(adds.First());
adds.Last().Url = "skldfjlksdjglkjjcccc"; adds.Last().Url = "skldfjlksdjglkjjcccc";
ctx.Songs.Update(adds.Last()); ctx.Songs.Update(adds.Last());
//throw new Exception("回滚"); //throw new Exception("回滚");
await ctx.SaveChangesAsync(); await ctx.SaveChangesAsync();
} }
``` ```
@@ -112,8 +176,8 @@ using (var ctx = new SongContext()) {
```csharp ```csharp
public void ConfigureServices(IServiceCollection services) public void ConfigureServices(IServiceCollection services)
{ {
services.AddSingleton<IFreeSql>(Fsql); services.AddSingleton<IFreeSql>(Fsql);
services.AddFreeDbContext<SongContext>(options => options.UseFreeSql(Fsql)); services.AddFreeDbContext<SongContext>(options => options.UseFreeSql(Fsql));
} }
``` ```
@@ -175,9 +239,9 @@ Guid Id 的情况下，执行三次命令：前两次插入合并执行，update
```csharp ```csharp
fsql.SetDbContextOptions(opt => { fsql.SetDbContextOptions(opt => {
opt.OnEntityChange = report => { opt.OnEntityChange = report => {
Console.WriteLine(report); Console.WriteLine(report);
}; };
}); });
``` ```
@@ -186,12 +250,12 @@ fsql.SetDbContextOptions(opt => {
```csharp ```csharp
var ctx = fsql.CreateDbContext(); var ctx = fsql.CreateDbContext();
ctx.Options.OnEntityChange = report => { ctx.Options.OnEntityChange = report => {
Console.WriteLine(report); Console.WriteLine(report);
}; };
var uow = fsql.CreateUnitOfWork(); var uow = fsql.CreateUnitOfWork();
uow.OnEntityChange = report => { uow.OnEntityChange = report => {
Console.WriteLine(report); Console.WriteLine(report);
}; };
``` ```
@@ -200,8 +264,8 @@ uow.OnEntityChange = report => {
```csharp ```csharp
public class EntityChangeInfo public class EntityChangeInfo
{ {
public object Object { get; set; } public object Object { get; set; }
public EntityChangeType Type { get; set; } public EntityChangeType Type { get; set; }
} }
public enum EntityChangeType { Insert, Update, Delete, SqlRaw } public enum EntityChangeType { Insert, Update, Delete, SqlRaw }
``` ```

37
FluentApi.md

@@ -2,12 +2,14 @@ FreeSql 提供使用 Fluent Api， 在外部配置实体的数据库特性，Flu
```csharp ```csharp
fsql.CodeFirst fsql.CodeFirst
.ConfigEntity<TestFluenttb1>(a => { .ConfigEntity<TestFluenttb1>(a =>
{
a.Name("xxdkdkdk1"); a.Name("xxdkdkdk1");
a.Property(b => b.Id).Name("Id22").IsIdentity(true); a.Property(b => b.Id).Name("Id22").IsIdentity(true);
a.Property(b => b.name).DbType("varchar(100)").IsNullable(true); a.Property(b => b.name).DbType("varchar(100)").IsNullable(true);
}) })
.ConfigEntity<TestFluenttb2>(a => { .ConfigEntity<TestFluenttb2>(a =>
{
a.Name("xxdkdkdk2"); a.Name("xxdkdkdk2");
a.Property(b => b.Id).Name("Id22").IsIdentity(true); a.Property(b => b.Id).Name("Id22").IsIdentity(true);
a.Property(b => b.name).DbType("varchar(100)").IsNullable(true); a.Property(b => b.name).DbType("varchar(100)").IsNullable(true);
@@ -34,7 +36,36 @@ class TestFluenttb2
参考：[《实体特性说明》](https://github.com/2881099/FreeSql/wiki/%e5%ae%9e%e4%bd%93%e7%89%b9%e6%80%a7) 参考：[《实体特性说明》](https://github.com/2881099/FreeSql/wiki/%e5%ae%9e%e4%bd%93%e7%89%b9%e6%80%a7)
> v1.1 增加扩展包 [FreeSql.Extensions.EfCoreFluentApi](https://github.com/2881099/FreeSql/tree/master/Extensions/FreeSql.Extensions.EfCoreFluentApi)，方便 EfCore 使用者过渡，使用方法接近 EfCore > FreeSql.DbContext v1.4.0+ 实现了 EfCore FluentApi 99% 相似的语法
```csharp
fsql.CodeFirst.Entity<SongType>(eb =>
{
eb.HasMany(a => a.Songs).WithOne(a => a.Type).HasForeignKey(a => a.TypeId);
eb.HasData(new[]
{
new SongType
{
Id = 1,
Name = "流行",
Songs = new List<Song>(new[]
{
new Song{ Title = "真的爱你" },
new Song{ Title = "爱你一万年" },
})
},
new SongType
{
Id = 2,
Name = "乡村",
Songs = new List<Song>(new[]
{
new Song{ Title = "乡里乡亲" },
})
},
});
});
```
## 优先级 ## 优先级

2
更新日志.md

@@ -4,6 +4,8 @@
## v1.4.0-preview ## v1.4.0-preview
- 增加 FreeSql.Provider.Dameng 基于 DmProvider Ado.net 访问达梦数据库； - 增加 FreeSql.Provider.Dameng 基于 DmProvider Ado.net 访问达梦数据库；
- 增加 FreeSql.DbContext OnModelCreating 虚方法，实现在 DbContext 使用 FluentApi；
- 移除 FreeSql.Extensions.EfCoreFluentApi，功能移至 FreeSql.DbContext；
- 增加 IInsert InsertColumns/IgnoreColumns 方法重载输入 string[]；#275 - 增加 IInsert InsertColumns/IgnoreColumns 方法重载输入 string[]；#275
- 增加 DbFirst 获取字段的默认值信息； - 增加 DbFirst 获取字段的默认值信息；
- 增加 FreeSql.Generator -Match 参数只生成匹配的表； - 增加 FreeSql.Generator -Match 参数只生成匹配的表；

2
自定义特性.md

@@ -22,8 +22,6 @@ class ModelAopConfigEntity {
} }
``` ```
> v1.1 增加扩展包 [FreeSql.Extensions.EfCoreFluentApi](https://github.com/2881099/FreeSql/tree/master/Extensions/FreeSql.Extensions.EfCoreFluentApi)，方便 EfCore 使用者过渡，使用方法接近 EfCore
## 优先级 ## 优先级
数据库特性 > 实体特性 > FluentApi（配置特性） > Aop（配置特性） 数据库特性 > 实体特性 > FluentApi（配置特性） > Aop（配置特性）

2
骚操作.md

@@ -308,8 +308,6 @@ class ModelAopConfigEntity {
} }
``` ```
> [FluentApi 与 EfCore 90% 相似的扩展包](https://github.com/2881099/FreeSql/tree/master/Extensions/FreeSql.Extensions.EfCoreFluentApi)
--- ---
# 13、审计 CURD # 13、审计 CURD