- 增加 FreeSql.Generator 实体类生成工具

Extensions/FreeSql.Generator/ConsoleApp.cs

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+using RazorEngine.Templating;
+using System;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using Console = Colorful.Console;
+
+namespace FreeSql.Generator
+{
+    class ConsoleApp
+    {
+        string ArgsRazorRaw { get; }
+        string ArgsRazor { get; }
+        bool[] ArgsNameOptions { get; }
+        string ArgsNameSpace { get; }
+        DataType ArgsDbType { get; }
+        string ArgsConnectionString { get; }
+        string ArgsFileName { get; }
+        string ArgsOutput { get; }
+
+        public ConsoleApp(string[] args, ManualResetEvent wait)
+        {
+            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+            var gb2312 = Encoding.GetEncoding("GB2312");
+            if (gb2312 != null)
+            {
+                try
+                {
+                    Console.OutputEncoding = gb2312;
+                    Console.InputEncoding = gb2312;
+                }
+                catch { }
+            }
+
+            //var ntjson = Assembly.LoadFile(@"C:\Users\28810\Desktop\testfreesql\bin\Debug\netcoreapp2.2\publish\testfreesql.dll");
+
+            //using (var gen = new Generator(new GeneratorOptions()))
+            //{
+            //    gen.TraceLog = log => Console.WriteFormatted(log + "\r\n", Color.DarkGray);
+            //    gen.Build(ArgsOutput, new[] { typeof(ojbk.Entities.AuthRole) }, false);
+            //}
+
+            var version = "v" + string.Join(".", typeof(ConsoleApp).Assembly.GetName().Version.ToString().Split('.').Where((a, b) => b <= 2));
+            Console.WriteAscii(" FreeSql", Color.Violet);
+            Console.WriteFormatted(@"
+  # Github # {0} {1}
+", Color.SlateGray,
+new Colorful.Formatter("https://github.com/2881099/FreeSql", Color.DeepSkyBlue),
+new Colorful.Formatter("v" + string.Join(".", typeof(ConsoleApp).Assembly.GetName().Version.ToString().Split('.').Where((a, b) => b <= 2)), Color.SlateGray));
+
+            ArgsOutput = Directory.GetCurrentDirectory();
+            ArgsFileName = "{name}.cs";
+            string args0 = args[0].Trim().ToLower();
+            if (args[0] == "?" || args0 == "--help" || args0 == "-help")
+            {
+
+                Console.WriteFormatted(@"
+    {0}
+
+    更新工具：dotnet tool update -g FreeSql.Generator
+
+
+  # 快速开始 #
+
+  > {1} {2} 1 {3} 0,0,0,0 {4} MyProject {5} ""MySql,Data Source=127.0.0.1;...""
+
+     -Razor 1                  * 选择模板：实体类+特性
+     
+     -Razor 2                  * 选择模板：实体类+特性+导航属性
+     
+     -Razor ""d:\diy.cshtml""    * 自定义模板文件
+     
+     -NameOptions              * 总共4个布尔值，分别对应：
+                               # 首字母大写
+                               # 首字母大写,其他小写
+                               # 全部小写
+                               # 下划线转驼峰
+                               
+     -NameSpace                * 命名空间
+     
+     -DB ""{6},Data Source=127.0.0.1;Port=3306;User ID=root;Password=root;Initial Catalog=数据库;Charset=utf8;SslMode=none;Max pool size=2""
+     
+     -DB ""{7},Data Source=.;Integrated Security=True;Initial Catalog=数据库;Pooling=true;Max Pool Size=2""
+     
+     -DB ""{8},Host=192.168.164.10;Port=5432;Username=postgres;Password=123456;Database=数据库;Pooling=true;Maximum Pool Size=2""
+     
+     -DB ""{9},user id=user1;password=123456;data source=//127.0.0.1:1521/XE;Pooling=true;Max Pool Size=2""
+     
+     -DB ""{10},Driver={DM8 ODBC DRIVER};Server=127.0.0.1:5236;Persist Security Info=False;Trusted_Connection=Yes;UID=USER1;PWD=123456789;Max pool size=2""
+                               {10} 是国产达梦数据库，需要使用 ODBC 连接
+
+     -FileName                 文件名，默认：{name}.cs
+
+     -Output                   保存路径，默认为当前 shell 所在目录
+                               {11}
+
+", Color.SlateGray,
+new Colorful.Formatter("使用 FreeSql 快速生成数据库的实体类", Color.SlateGray),
+new Colorful.Formatter("FreeSql.Generator", Color.White),
+new Colorful.Formatter("-Razor", Color.ForestGreen),
+new Colorful.Formatter("-NameOptions", Color.ForestGreen),
+new Colorful.Formatter("-NameSpace", Color.ForestGreen),
+new Colorful.Formatter("-DB", Color.ForestGreen),
+new Colorful.Formatter("MySql", Color.Yellow),
+new Colorful.Formatter("SqlServer", Color.Yellow),
+new Colorful.Formatter("PostgreSQL", Color.Yellow),
+new Colorful.Formatter("Oracle", Color.Yellow),
+new Colorful.Formatter("OdbcDameng", Color.Yellow),
+new Colorful.Formatter("推荐在实体类目录创建 gen.bat，双击它重新所有实体类", Color.ForestGreen)
+);
+                wait.Set();
+                return;
+            }
+            for (int a = 0; a < args.Length; a++)
+            {
+                switch (args[a])
+                {
+                    case "-Razor":
+                        ArgsRazorRaw = args[a + 1].Trim();
+                        switch (ArgsRazorRaw)
+                        {
+                            case "1": ArgsRazor = RazorContentManager.实体类_特性_cshtml; break;
+                            case "2": ArgsRazor = RazorContentManager.实体类_特性_导航属性_cshtml; break;
+                            default: ArgsRazor = File.ReadAllText(args[a + 1]); break;
+                        }
+                        a++;
+                        break;
+
+                    case "-NameOptions":
+                        ArgsNameOptions = args[a + 1].Split(',').Select(opt => opt == "1").ToArray();
+                        if (ArgsNameOptions.Length != 4) throw new ArgumentException("-NameOptions 参数错误，格式为：0,0,0,0");
+                        a++;
+                        break;
+                    case "-NameSpace":
+                        ArgsNameSpace = args[a + 1];
+                        a++;
+                        break;
+                    case "-DB":
+                        var dbargs = args[a + 1].Split(',', 2);
+                        if (dbargs.Length != 2) throw new ArgumentException("-DB 参数错误，格式为：MySql,ConnectionString");
+                        switch (dbargs[0].Trim().ToLower())
+                        {
+                            case "mysql": ArgsDbType = DataType.MySql; break;
+                            case "sqlserver": ArgsDbType = DataType.SqlServer; break;
+                            case "postgresql": ArgsDbType = DataType.PostgreSQL; break;
+                            case "oracle": ArgsDbType = DataType.Oracle; break;
+                            case "odbcdameng": ArgsDbType = DataType.OdbcDameng; break;
+                            default: throw new ArgumentException($"-DB 参数错误，不支持的类型：{dbargs[0]}");
+                        }
+                        ArgsConnectionString = dbargs[1].Trim();
+                        if (string.IsNullOrEmpty(ArgsConnectionString)) throw new ArgumentException($"-DB 参数错误，未提供 ConnectionString");
+                        a++;
+                        break;
+                    case "-FileName":
+                        ArgsFileName = args[a + 1];
+                        a++;
+                        break;
+                    case "-Output":
+                        ArgsOutput = args[a + 1];
+                        a++;
+                        break;
+                }
+            }
+
+            ArgsOutput = ArgsOutput.Trim().TrimEnd('/', '\\');
+            ArgsOutput += ArgsOutput.Contains("\\") ? "\\" : "/";
+            if (!Directory.Exists(ArgsOutput))
+                Directory.CreateDirectory(ArgsOutput);
+
+            RazorEngine.Engine.Razor = RazorEngineService.Create(new RazorEngine.Configuration.TemplateServiceConfiguration
+            {
+                EncodedStringFactory = new RazorEngine.Text.RawStringFactory() // Raw string encoding.
+            });
+            var razorId = Guid.NewGuid().ToString("N");
+            RazorEngine.Engine.Razor.Compile(ArgsRazor, razorId);
+
+            var outputCounter = 0;
+            using (IFreeSql fsql = new FreeSql.FreeSqlBuilder()
+                .UseConnectionString(ArgsDbType, ArgsConnectionString)
+                .UseAutoSyncStructure(false)
+                .UseMonitorCommand(cmd => Console.WriteFormatted(cmd.CommandText + "\r\n", Color.SlateGray))
+                .Build())
+            {
+                var tables = fsql.DbFirst.GetTablesByDatabase();
+                var outputTables = tables;
+
+                
+                //开始生成操作
+                foreach (var table in outputTables)
+                {
+                    var sw = new StringWriter();
+                    var model = new RazorModel(fsql, ArgsNameSpace, ArgsNameOptions, tables, table);
+                    RazorEngine.Engine.Razor.Run(razorId, sw, null, model);
+
+                    StringBuilder plus = new StringBuilder();
+                    plus.AppendLine("//------------------------------------------------------------------------------");
+                    plus.AppendLine("// <auto-generated>");
+                    plus.AppendLine("//     此代码由工具 FreeSql.Generator 生成。");
+                    plus.AppendLine("//     运行时版本:" + Environment.Version.ToString());
+                    plus.AppendLine("//     Website: https://github.com/2881099/FreeSql");
+                    plus.AppendLine("//     对此文件的更改可能会导致不正确的行为，并且如果");
+                    plus.AppendLine("//     重新生成代码，这些更改将会丢失。");
+                    plus.AppendLine("// </auto-generated>");
+                    plus.AppendLine("//------------------------------------------------------------------------------");
+                    plus.Append(sw.ToString());
+                    plus.AppendLine();
+
+                    var outputFile = $"{ArgsOutput}{ArgsFileName.Replace("{name}", model.GetCsName(table.Name))}";
+                    File.WriteAllText(outputFile, plus.ToString());
+                    Console.WriteFormatted(" OUT -> " + outputFile + "\r\n", Color.DeepSkyBlue);
+                    ++outputCounter;
+                }
+            }
+
+            var rebuildBat = ArgsOutput + "__重新生成.bat";
+            if (File.Exists(rebuildBat) == false)
+            {
+                File.WriteAllText(rebuildBat, @$"
+FreeSql.Generator -Razor {ArgsRazorRaw} - NameOptions {string.Join(",", ArgsNameOptions.Select(a => a ? 1 : 0))} -NameSpace {ArgsNameSpace} -DB ""{ArgsDbType},{ArgsConnectionString}""
+"); 
+                Console.WriteFormatted(" OUT -> " + rebuildBat + "    (以后) 双击它重新生成实体\r\n", Color.Magenta);
+                ++outputCounter;
+            }
+
+            Console.WriteFormatted($"\r\n[{DateTime.Now.ToString("MM-dd HH:mm:ss")}] 生成完毕，总共生成了 {outputCounter} 个文件，目录：\"{ArgsOutput}\"\r\n", Color.DarkGreen);
+
+            Console.ReadKey();
+            wait.Set();
+        }
+    }
+}
+

Extensions/FreeSql.Generator/FreeSql.Generator.csproj

@@ -0,0 +1,33 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <IsPackable>true</IsPackable>
+    <PackAsTool>true</PackAsTool>
+    <Authors>2881099</Authors>
+    <Company>2881099</Company>
+    <Product>FreeSql123</Product>
+    <Description>使用 FreeSql 快速生成数据库的实体类； dotnet tool install -g FreeSql.Generator</Description>
+    <PackageProjectUrl>https://github.com/2881099/FreeSql</PackageProjectUrl>
+    <RepositoryUrl>https://github.com/2881099/FreeSql</RepositoryUrl>
+    <Version>0.12.16</Version>
+    <PackageTags>FreeSql DbFirst 实体生成器</PackageTags>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Colorful.Console" Version="1.2.9" />
+    <PackageReference Include="RazorEngine.NetCore" Version="2.2.4" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.7.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\Providers\FreeSql.Provider.MySqlConnector\FreeSql.Provider.MySqlConnector.csproj" />
+    <ProjectReference Include="..\..\Providers\FreeSql.Provider.Odbc\FreeSql.Provider.Odbc.csproj" />
+    <ProjectReference Include="..\..\Providers\FreeSql.Provider.Oracle\FreeSql.Provider.Oracle.csproj" />
+    <ProjectReference Include="..\..\Providers\FreeSql.Provider.PostgreSQL\FreeSql.Provider.PostgreSQL.csproj" />
+    <ProjectReference Include="..\..\Providers\FreeSql.Provider.SqlServer\FreeSql.Provider.SqlServer.csproj" />
+  </ItemGroup>
+
+</Project>

Extensions/FreeSql.Generator/Program.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading;
+
+namespace FreeSql.Generator
+{
+    public class Program
+    {
+        static void Main(string[] args)
+        {
+            if (args != null && args.Length == 0) args = new[] { "?" };
+            ManualResetEvent wait = new ManualResetEvent(false);
+            new Thread(() => {
+                Thread.CurrentThread.Join(TimeSpan.FromSeconds(1));
+                ConsoleApp app = new ConsoleApp(args, wait);
+            }).Start();
+            wait.WaitOne();
+            return;
+        }
+    }
+}

Extensions/FreeSql.Generator/RazorContentManager.cs

@@ -0,0 +1,246 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace FreeSql.Generator
+{
+    class RazorContentManager
+    {
+        public static string 实体类_特性_cshtml =
+        #region 长内容
+            @"@using FreeSql.DatabaseModel;@{
+var gen = Model as RazorModel;
+
+Func<string, string> GetAttributeString = attr => {
+	if (string.IsNullOrEmpty(attr)) return null;
+	return string.Concat("", "", attr.Trim('[', ']'));
+};
+Func<DbColumnInfo, string> GetDefaultValue = col => {
+    if (col.CsType == typeof(string)) return "" = string.Empty;"";
+    return """";
+};
+}@{
+switch (gen.fsql.Ado.DataType) {
+	case FreeSql.DataType.PostgreSQL:
+@:using System;
+@:using System.Collections;
+@:using System.Collections.Generic;
+@:using System.Linq;
+@:using System.Reflection;
+@:using System.Threading.Tasks;
+@:using Newtonsoft.Json;
+@:using FreeSql.DataAnnotations;
+@:using System.Net;
+@:using Newtonsoft.Json.Linq;
+@:using System.Net.NetworkInformation;
+@:using NpgsqlTypes;
+@:using Npgsql.LegacyPostgis;
+		break;
+	case FreeSql.DataType.SqlServer:
+	case FreeSql.DataType.MySql:
+	default:
+@:using System;
+@:using System.Collections;
+@:using System.Collections.Generic;
+@:using System.Linq;
+@:using System.Reflection;
+@:using System.Threading.Tasks;
+@:using Newtonsoft.Json;
+@:using FreeSql.DataAnnotations;
+		break;
+}
+}
+namespace @gen.NameSpace {
+
+@if (string.IsNullOrEmpty(gen.table.Comment) == false) {
+	@:/// <summary>
+	@:/// @gen.table.Comment.Replace(""\r\n"", ""\n"").Replace(""\n"", ""\r\n		/// "")
+	@:/// </summary>
+}
+	[JsonObject(MemberSerialization.OptIn)@GetAttributeString(gen.GetTableAttribute())]
+	public partial class @gen.GetCsName(gen.FullTableName) {
+
+	@foreach (var col in gen.columns) {
+
+		if (string.IsNullOrEmpty(col.Coment) == false) {
+		@:/// <summary>
+		@:/// @col.Coment.Replace(""\r\n"", ""\n"").Replace(""\n"", ""\r\n		/// "")
+		@:/// </summary>
+		}
+		@:@(""[JsonProperty"" + GetAttributeString(gen.GetColumnAttribute(col)) + ""]"")
+		@:public @gen.GetCsType(col) @gen.GetCsName(col.Name) { get; set; }@GetDefaultValue(col)
+@:
+	}
+	}
+@gen.GetMySqlEnumSetDefine()
+}";
+        #endregion
+
+        public static string 实体类_特性_导航属性_cshtml =
+        #region 长内容 
+            @"@using FreeSql.DatabaseModel;@{
+
+var isLazying = true; //延时加载
+var isOneToMany = true; //一对多，集合属性
+var isManyToMany = true; //多对多，集合属性
+
+var gen = Model as RazorModel;
+var fks = gen.table.Foreigns;
+
+Func<string, string> GetAttributeString = attr => {
+	if (string.IsNullOrEmpty(attr)) return null;
+	return string.Concat("", "", attr.Trim('[', ']'));
+};
+
+Func<DbForeignInfo, string> GetFkObjectName = fkx => {
+	var eqfks = fks.Where(fk22a => fk22a.ReferencedTable.Name == fkx.ReferencedTable.Name);
+	if (eqfks.Count() == 1) return fkx.ReferencedTable.Name;
+	var fkretname = fkx.Columns[0].Name;
+	if (fkretname.EndsWith(fkx.ReferencedColumns[0].Name, StringComparison.CurrentCultureIgnoreCase)) fkretname = fkretname.Substring(0, fkretname.Length - fkx.ReferencedColumns[0].Name.Length).TrimEnd('_');
+	if (fkretname.EndsWith(fkx.ReferencedTable.Name, StringComparison.CurrentCultureIgnoreCase)) fkretname = fkretname.Substring(0, fkretname.Length - fkx.ReferencedTable.Name.Length).TrimEnd('_');
+	if (fkretname.StartsWith(fkx.ReferencedTable.Name, StringComparison.CurrentCultureIgnoreCase)) fkretname = fkretname.Substring(fkx.ReferencedTable.Name.Length).TrimStart('_');
+	return fkx.ReferencedTable.Name + (string.IsNullOrEmpty(fkretname) ? """" : (""_"" + fkretname));
+};
+Func<DbForeignInfo, string> GetFkObjectNameOutside = fkx => {
+	var eqfks = fkx.Table.Foreigns.Where(fk22a => fk22a.ReferencedTable.Name == fkx.ReferencedTable.Name);
+	if (eqfks.Count() == 1) return fkx.Table.Name;
+	var fkretname = fkx.Columns[0].Name;
+	if (fkretname.EndsWith(fkx.ReferencedColumns[0].Name, StringComparison.CurrentCultureIgnoreCase)) fkretname = fkretname.Substring(0, fkretname.Length - fkx.ReferencedColumns[0].Name.Length).TrimEnd('_');
+	if (fkretname.EndsWith(fkx.ReferencedTable.Name, StringComparison.CurrentCultureIgnoreCase)) fkretname = fkretname.Substring(0, fkretname.Length - fkx.ReferencedTable.Name.Length).TrimEnd('_');
+	if (fkretname.StartsWith(fkx.ReferencedTable.Name, StringComparison.CurrentCultureIgnoreCase)) fkretname = fkretname.Substring(fkx.ReferencedTable.Name.Length).TrimStart('_');
+	return fkx.Table.Name + ""s"";
+};
+}@{
+switch (gen.fsql.Ado.DataType) {
+	case FreeSql.DataType.PostgreSQL:
+@:using System;
+@:using System.Collections.Generic;
+@:using Newtonsoft.Json;
+@:using FreeSql.DataAnnotations;
+@:using System.Net;
+@:using Newtonsoft.Json.Linq;
+@:using System.Net.NetworkInformation;
+@:using NpgsqlTypes;
+@:using Npgsql.LegacyPostgis;
+		break;
+	case FreeSql.DataType.SqlServer:
+	case FreeSql.DataType.MySql:
+	default:
+@:using System;
+@:using System.Collections.Generic;
+@:using Newtonsoft.Json;
+@:using FreeSql.DataAnnotations;
+		break;
+}
+}
+namespace @gen.NameSpace {
+
+@if (string.IsNullOrEmpty(gen.table.Comment) == false) {
+	@:/// <summary>
+	@:/// @gen.table.Comment.Replace(""\r\n"", ""\n"").Replace(""\n"", ""\r\n		/// "")
+	@:/// </summary>
+}
+	[JsonObject(MemberSerialization.OptIn)@GetAttributeString(gen.GetTableAttribute())]
+	public partial class @gen.GetCsName(gen.FullTableName) {
+
+	@foreach (var col in gen.columns) {
+
+		var findfks = fks.Where(fkaa => fkaa.Columns.Where(fkaac1 => fkaac1.Name == col.Name).Any());
+		var csname = gen.GetCsName(col.Name);
+
+		if (string.IsNullOrEmpty(col.Coment) == false) {
+		@:/// <summary>
+		@:/// @col.Coment.Replace(""\r\n"", ""\n"").Replace(""\n"", ""\r\n		/// "")
+		@:/// </summary>
+		}
+		@:@(""[JsonProperty"" + GetAttributeString(gen.GetColumnAttribute(col)) + ""]"")
+		if (findfks.Any() == false) {
+		@:public @gen.GetCsType(col) @csname { get; set; }
+		} else {
+		@:public @gen.GetCsType(col) @csname { get => _@csname; set {
+			@:if (_@csname == value) return;
+			@:_@csname = value;
+			foreach (var fkcok2 in findfks) {
+			@:@GetFkObjectName(fkcok2) = null;
+			}
+		@:} }
+		@:private @gen.GetCsType(col) _@csname;
+		}
+@:
+	}
+@if (fks.Any()) {
+@:
+		@:#region 外键 => 导航属性，ManyToOne/OneToOne
+		foreach (var fk in fks) {
+			var fkTableName = (fk.ReferencedTable.Schema + ""."" + fk.ReferencedTable.Name).Trim('.');
+            if (fk.ReferencedTable.Schema == ""public"" || fk.ReferencedTable.Schema == ""dbo"")
+            {
+                fkTableName = fkTableName.Replace(fk.ReferencedTable.Schema + ""."", """");
+            }
+@:
+		@:[Navigate(""@string.Join("", "", fk.Columns.Select(a => gen.GetCsName(a.Name)))"")]
+		@:public@(isLazying ? "" virtual"" : """") @gen.GetCsName(fkTableName) @GetFkObjectName(fk) { get; set; }
+		}
+@:
+		@:#endregion
+}
+@if (isOneToMany && gen.tables.Where(tmpft => tmpft.Foreigns.Where(tmpftfk => tmpftfk.ReferencedTable.Schema == gen.table.Schema && tmpftfk.ReferencedTable.Name == gen.table.Name && tmpftfk.Columns.Where(tmpcol => tmpcol.IsPrimary).Count() != tmpftfk.Columns.Count).Any()).Any()) {
+@:
+		@:#region 外键 => 导航属性，OneToMany
+	foreach (var ft in gen.tables) {
+        var ftfks = ft.Foreigns.Where(ftfk => ftfk.ReferencedTable.Schema == gen.table.Schema && ftfk.ReferencedTable.Name == gen.table.Name && ftfk.Columns.Where(tmpcol => tmpcol.IsPrimary).Count() != ftfk.Columns.Count).ToArray();
+        foreach (var fk in ftfks) {
+            var fkTableName = (ft.Schema + ""."" + ft.Name).Trim('.');
+            if (ft.Schema == ""public"" || ft.Schema == ""dbo"")
+            {
+                fkTableName = fkTableName.Replace(ft.Schema + ""."", """");
+            }
+@:
+		@:[Navigate(""@string.Join("", "", fk.Columns.Select(a => gen.GetCsName(a.Name)))"")]
+		@:public@(isLazying ? "" virtual"" : """") List<@gen.GetCsName(fkTableName)> @GetFkObjectNameOutside(fk)s { get; set; }
+		}
+	}
+@:
+		@:#endregion
+}
+@if (isManyToMany) {
+@:
+		@:#region 外键 => 导航属性，ManyToMany
+	foreach (var ft in gen.tables) {
+        if (ft != gen.table) {
+            var ftfks = ft.Foreigns.Where(ftfk => ftfk.Columns.Where(ftfkcol => ftfkcol.IsPrimary == false).Any() == false).ToArray();
+            if (ftfks.Length == 2) {
+                var fk1 = ftfks.Where(ftfk => (ftfk.ReferencedTable.Schema + ""."" + ftfk.ReferencedTable.Name).Trim('.') == gen.FullTableName).ToArray();
+                if (fk1.Length == 1) {
+                    var fk2 = ftfks.Where(ftfk => fk1.Contains(ftfk) == false).ToArray();
+
+                    var midft = ft;
+                    var leftft = gen.table;
+                    DbTableInfo rightft = null;
+                    if (fk2.Any()) {
+                        rightft = fk2[0].ReferencedTable;
+                    } else {
+                        rightft = fk1[1].ReferencedTable;
+                    }
+
+                    var fkTableName = (rightft.Schema + ""."" + rightft.Name).Trim('.');
+                    if (rightft.Schema == ""public"" || rightft.Schema == ""dbo"")
+                    {
+                        fkTableName = fkTableName.Replace(rightft.Schema + ""."", """");
+                    }
+                    var csname = rightft.Name;
+@:
+		@:public@(isLazying ? "" virtual"" : """") List<@gen.GetCsName(fkTableName)> @gen.GetCsName(csname)s { get; set; }
+				}
+			}
+		}
+	}
+@:
+		@:#endregion
+}
+	}
+@gen.GetMySqlEnumSetDefine()
+}"; 
+        #endregion
+    }
+}

Extensions/FreeSql.Generator/RazorModel.cs

@@ -0,0 +1,145 @@
+using FreeSql.DatabaseModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+public class RazorModel {
+	public RazorModel(IFreeSql fsql, string nameSpace, bool[] NameOptions, List<DbTableInfo> tables, DbTableInfo table) {
+		this.fsql = fsql;
+        this.NameSpace = nameSpace;
+        this.NameOptions = NameOptions;
+        this.tables = tables;
+		this.table = table;
+	}
+
+	public IFreeSql fsql { get; set; }
+	public bool[] NameOptions { get; set; }
+	public  List<DbTableInfo> tables { get; set; }
+	public DbTableInfo table { get; set; }
+	public List<DbColumnInfo> columns => this.table.Columns;
+	public string NameSpace { get; set; }
+    public string FullTableName => $"{(new[] { "public", "dbo" }.Contains(table.Schema) ? "" : table.Schema)}.{table.Name}".TrimStart('.');
+
+	public string GetCsName(string name) {
+		name = Regex.Replace(name.TrimStart('@', '.'), @"[^\w]", "_");
+		name = char.IsLetter(name, 0) ? name : string.Concat("_", name);
+		if (NameOptions[0]) name = UFString(name);
+		if (NameOptions[1]) name = UFString(name.ToLower());
+		if (NameOptions[2]) name = name.ToLower();
+		if (NameOptions[3]) name = string.Join("", name.Split('_').Select(a => UFString(a)));
+		return name;
+	}
+	public string UFString(string text) {
+		text = Regex.Replace(text, @"[^\w]", "_");
+		if (text.Length <= 1) return text.ToUpper();
+		else return text.Substring(0, 1).ToUpper() + text.Substring(1, text.Length - 1);
+	}
+	public string LFString(string text) {
+		text = Regex.Replace(text, @"[^\w]", "_");
+		if (text.Length <= 1) return text.ToLower();
+		else return text.Substring(0, 1).ToLower() + text.Substring(1, text.Length - 1);
+	}
+
+	public string GetCsType(DbColumnInfo col) {
+		if (fsql.Ado.DataType == FreeSql.DataType.MySql)
+			if (col.DbType == (int)MySql.Data.MySqlClient.MySqlDbType.Enum || col.DbType == (int)MySql.Data.MySqlClient.MySqlDbType.Set)
+				return $"{this.GetCsName(this.FullTableName)}{this.GetCsName(col.Name).ToUpper()}{(col.IsNullable ? "?" : "")}";
+		return fsql.DbFirst.GetCsType(col);
+	}
+
+	#region 特性
+	public string GetTableAttribute() {
+		var sb = new List<string>();
+
+		if (GetCsName(this.FullTableName) != this.FullTableName)
+			sb.Add("Name = \"" + this.FullTableName + "\"");
+
+		if (sb.Any() == false) return null;
+		return "[Table(" + string.Join(", ", sb) + ")]";
+	}
+	public string GetColumnAttribute(DbColumnInfo col) {
+		var sb = new List<string>();
+
+		if (GetCsName(col.Name) != col.Name)
+			sb.Add("Name = \"" + col.Name + "\"");
+
+		var dbinfo = fsql.CodeFirst.GetDbInfo(col.CsType);
+		if (dbinfo != null && dbinfo.Value.dbtypeFull.Replace("NOT NULL", "").Trim() != col.DbTypeTextFull)
+			sb.Add("DbType = \"" + col.DbTypeTextFull + "\"");
+		if (col.IsPrimary)
+			sb.Add("IsPrimary = true");
+		if (col.IsIdentity)
+			sb.Add("IsIdentity = true");
+
+		if (dbinfo != null && dbinfo.Value.isnullable != col.IsNullable) {
+			if (col.IsNullable && fsql.DbFirst.GetCsType(col).Contains("?") == false && col.CsType.IsValueType)
+				sb.Add("IsNullable = true");
+			if (col.IsNullable == false && fsql.DbFirst.GetCsType(col).Contains("?") == true)
+				sb.Add("IsNullable = false");
+		}
+		if (sb.Any() == false) return null;
+		return "[Column(" + string.Join(", ", sb) + ")]";
+	}
+	#endregion
+
+	#region mysql enum/set
+	public string GetMySqlEnumSetDefine() {
+		if (fsql.Ado.DataType != FreeSql.DataType.MySql) return null;
+		var sb = new StringBuilder();
+		foreach (var col in table.Columns) {
+			if (col.DbType == (int)MySql.Data.MySqlClient.MySqlDbType.Enum || col.DbType == (int)MySql.Data.MySqlClient.MySqlDbType.Set) {
+				if (col.DbType == (int)MySql.Data.MySqlClient.MySqlDbType.Set) sb.Append("\r\n\t[Flags]");
+				sb.Append($"\r\n\tpublic enum {this.GetCsName(this.FullTableName)}{this.GetCsName(col.Name).ToUpper()}");
+				if (col.DbType == (int)MySql.Data.MySqlClient.MySqlDbType.Set) sb.Append(" : long");
+				sb.Append(" {\r\n\t\t");
+
+				string slkdgjlksdjg = "";
+				int field_idx = 0;
+				int unknow_idx = 0;
+				string exp2 = string.Concat(col.DbTypeTextFull);
+				int quote_pos = -1;
+				while (true) {
+					int first_pos = quote_pos = exp2.IndexOf('\'', quote_pos + 1);
+					if (quote_pos == -1) break;
+					while (true) {
+						quote_pos = exp2.IndexOf('\'', quote_pos + 1);
+						if (quote_pos == -1) break;
+						int r_cout = 0;
+						//for (int p = 1; true; p++) {
+						//	if (exp2[quote_pos - p] == '\\') r_cout++;
+						//	else break;
+						//}
+						while (exp2[++quote_pos] == '\'') r_cout++;
+						if (r_cout % 2 == 0/* && quote_pos - first_pos > 2*/) {
+							string str2 = exp2.Substring(first_pos + 1, quote_pos - first_pos - 2).Replace("''", "'");
+							if (Regex.IsMatch(str2, @"^[\u0391-\uFFE5a-zA-Z_\$][\u0391-\uFFE5a-zA-Z_\$\d]*$"))
+								slkdgjlksdjg += ", " + str2;
+							else
+								slkdgjlksdjg += string.Format(@", 
+/// <summary>
+/// {0}
+/// </summary>
+[Description(""{0}"")]
+Unknow{1}", str2.Replace("\"", "\\\""), ++unknow_idx);
+							if (col.DbType == (int)MySql.Data.MySqlClient.MySqlDbType.Set)
+								slkdgjlksdjg += " = " + Math.Pow(2, field_idx++);
+							if (col.DbType == (int)MySql.Data.MySqlClient.MySqlDbType.Enum && field_idx++ == 0)
+								slkdgjlksdjg += " = 1";
+							break;
+						}
+					}
+					if (quote_pos == -1) break;
+				}
+				sb.Append(slkdgjlksdjg.Substring(2).TrimStart('\r', '\n', '\t'));
+				sb.Append("\r\n\t}");
+			}
+		}
+		return sb.ToString();
+	}
+	#endregion
+}
+
+

FreeSql.sln

@@ -66,6 +66,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FreeSql.Tests.Provider.Odbc
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "orm_vs_net40", "Examples\orm_vs_net40\orm_vs_net40.csproj", "{1674BCE3-EEB4-4003-A2A7-06F51EFAEA23}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FreeSql.Generator", "Extensions\FreeSql.Generator\FreeSql.Generator.csproj", "{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -388,6 +390,18 @@ Global
 		{1674BCE3-EEB4-4003-A2A7-06F51EFAEA23}.Release|x64.Build.0 = Release|Any CPU
 		{1674BCE3-EEB4-4003-A2A7-06F51EFAEA23}.Release|x86.ActiveCfg = Release|Any CPU
 		{1674BCE3-EEB4-4003-A2A7-06F51EFAEA23}.Release|x86.Build.0 = Release|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Debug|x64.Build.0 = Debug|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Debug|x86.Build.0 = Debug|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Release|x64.ActiveCfg = Release|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Release|x64.Build.0 = Release|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Release|x86.ActiveCfg = Release|Any CPU
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -411,6 +425,7 @@ Global
 		{3043DEF1-85DF-47AD-8D5D-327270794356} = {4A92E8A6-9A6D-41A1-9CDA-DE10899648AA}
 		{C57444BA-8BF7-4790-A864-7F237123219B} = {2A381C57-2697-427B-9F10-55DA11FD02E4}
 		{1674BCE3-EEB4-4003-A2A7-06F51EFAEA23} = {94C8A78D-AA15-47B2-A348-530CD86BFC1B}
+		{6A3A4470-7DF7-411B-AAD7-755D7A9DB5A4} = {4A92E8A6-9A6D-41A1-9CDA-DE10899648AA}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {089687FD-5D25-40AB-BA8A-A10D1E137F98}

readme.md

@@ -9,7 +9,7 @@ FreeSql 是功能强大的对象关系映射技术(O/RM)，支持 .NETCore 2.1+
 # Features
 
 - [x] 支持 CodeFirst 迁移；
-- [x] 支持 DbFirst 从数据库导入实体类；
+- [x] 支持 DbFirst 从数据库导入实体类，[安装实体类生成工具](https://github.com/2881099/FreeSql/wiki/DbFirst)；
 - [x] 大量采用 ExpressionTree 提升性能；
 - [x] 支持 深入的类型映射，比如pgsql的数组类型；
 - [x] 支持 丰富的表达式函数；
@@ -43,12 +43,6 @@ FreeSql 是功能强大的对象关系映射技术(O/RM)，支持 .NETCore 2.1+
 - 要么[FreeSql.Connection.Extensions](https://github.com/2881099/FreeSql.Connection.Extensions)，有点像Dapper的使用习惯；
 - 要么[BaseEntity](https://github.com/2881099/FreeSql/tree/master/Examples/base_entity)，我求简单现在使用的这个；
 
-> 其他下载
-
-- [FreeSql.Tools 生成器](https://github.com/2881099/FreeSql.Tools)，基于 razor 模板的生成器；
-- [Abp 中使用 FreeSql](https://github.com/gnsilence/JPGZService)，测试中．．．；
-- [FreeSql 优势.pptx](https://github.com/2881099/FreeSql/files/3305852/FreeSql.pptx)；
-
 > 学习项目
 
 - [😃 A simple and practical CMS implememted by .NET Core 2.2](https://github.com/luoyunchong/lin-cms-dotnetcore)