using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using NewLife.Collections;
using NewLife.Log;
using NewLife.Reflection;
using XCode.DataAccessLayer;
namespace XCode.Code
{
/// <summary>实体类生成器</summary>
public class EntityBuilder : ClassBuilder
{
#region 属性
/// <summary>连接名</summary>
public String ConnName { get; set; }
/// <summary>泛型实体类。泛型参数名TEntity</summary>
public Boolean GenericType { get; set; }
/// <summary>业务类。</summary>
public Boolean Business { get; set; }
/// <summary>所有表类型名。用于扩展属性</summary>
public IList<IDataTable> AllTables { get; set; } = new List<IDataTable>();
#endregion
#region 构造
/// <summary>实例化</summary>
public EntityBuilder()
{
Usings.Add("XCode");
Usings.Add("XCode.Configuration");
Usings.Add("XCode.DataAccessLayer");
Pure = false;
}
#endregion
#region 静态快速
/// <summary>为Xml模型文件生成实体类</summary>
/// <param name="xmlFile">模型文件</param>
/// <param name="output">输出目录</param>
/// <param name="nameSpace">命名空间</param>
/// <param name="connName">连接名</param>
/// <param name="chineseFileName">中文文件名</param>
/// <param name="ignoreNameCase">忽略表名、字段名大小写（true 当前表名与类名称相同时，则自动省略该属性，反之 false）</param>
public static Int32 Build(String xmlFile = null, String output = null, String nameSpace = null, String connName = null, Boolean? chineseFileName = null, Boolean? ignoreNameCase = null)
{
if (xmlFile.IsNullOrEmpty())
{
var di = ".".GetBasePath().AsDirectory();
//XTrace.WriteLine("未指定模型文件，准备从目录中查找第一个xml文件 {0}", di.FullName);
// 选当前目录第一个
xmlFile = di.GetFiles("*.xml", SearchOption.TopDirectoryOnly).FirstOrDefault()?.FullName;
}
if (xmlFile.IsNullOrEmpty()) throw new Exception("找不到任何模型文件！");
xmlFile = xmlFile.GetBasePath();
if (!File.Exists(xmlFile)) throw new FileNotFoundException("指定模型文件不存在！", xmlFile);
// 导入模型
var xml = File.ReadAllText(xmlFile);
var atts = new NullableDictionary<String, String>(StringComparer.OrdinalIgnoreCase)
{
["xmlns"] = "http://www.newlifex.com/Model2020.xsd",
["xmlns:xs"] = "http://www.w3.org/2001/XMLSchema-instance",
["xs:schemaLocation"] = "http://www.newlifex.com http://www.newlifex.com/Model2020.xsd"
};
// 导入模型
var tables = ModelHelper.FromXml(xml, DAL.CreateTable, atts);
if (tables.Count == 0) return 0;
// 输出
if (!output.IsNullOrEmpty())
atts["Output"] = output;
else
output = atts["Output"];
if (output.IsNullOrEmpty()) output = Path.GetDirectoryName(xmlFile);
// 命名空间
if (!nameSpace.IsNullOrEmpty())
atts["NameSpace"] = nameSpace;
else
nameSpace = atts["NameSpace"];
if (nameSpace.IsNullOrEmpty()) nameSpace = Path.GetFileNameWithoutExtension(xmlFile);
// 连接名
if (!connName.IsNullOrEmpty())
atts["ConnName"] = connName;
else
connName = atts["ConnName"];
if (connName.IsNullOrEmpty() && !nameSpace.IsNullOrEmpty()) connName = nameSpace.Split(".").LastOrDefault(e => !e.EqualIgnoreCase("Entity"));
// 基类
var baseClass = "";
if (!baseClass.IsNullOrEmpty())
atts["BaseClass"] = baseClass;
else
baseClass = atts["BaseClass"];
// 中文文件名
if (chineseFileName != null)
{
atts["ChineseFileName"] = chineseFileName.Value ? "True" : "False";
}
else
{
chineseFileName = atts["ChineseFileName"].ToBoolean(true);
}
// 忽略表名/字段名称大小写
if (ignoreNameCase != null)
{
atts["IgnoreNameCase"] = ignoreNameCase.Value ? "True" : "False";
}
else
{
var str = atts["IgnoreNameCase"];
if (str.IsNullOrEmpty()) str = atts["NameIgnoreCase"];
ignoreNameCase = str.ToBoolean();
}
//XTrace.WriteLine("代码生成源：{0}", xmlFile);
var rs = BuildTables(tables, output, nameSpace, connName, baseClass, chineseFileName.Value, ignoreNameCase.Value);
// 确保输出空特性
if (atts["Output"].IsNullOrEmpty()) atts["Output"] = "";
if (atts["NameSpace"].IsNullOrEmpty()) atts["NameSpace"] = "";
if (atts["ConnName"].IsNullOrEmpty()) atts["ConnName"] = "";
if (atts["BaseClass"].IsNullOrEmpty()) atts["BaseClass"] = "Entity";
if (atts["IgnoreNameCase"].IsNullOrEmpty()) atts["IgnoreNameCase"] = true + "";
atts.Remove("NameIgnoreCase");
// 更新xsd
atts["xmlns"] = atts["xmlns"].Replace("ModelSchema", "Model2020");
atts["xs:schemaLocation"] = atts["xs:schemaLocation"].Replace("ModelSchema", "Model2020");
// 保存模型文件
var xml2 = ModelHelper.ToXml(tables, atts);
if (xml != xml2) File.WriteAllText(xmlFile, xml2);
return rs;
}
/// <summary>为Xml模型文件生成实体类</summary>
/// <param name="tables">模型文件</param>
/// <param name="output">输出目录</param>
/// <param name="nameSpace">命名空间</param>
/// <param name="connName">连接名</param>
/// <param name="baseClass">基类</param>
/// <param name="chineseFileName">是否中文名称</param>
/// <param name="ignoreNameCase">忽略表名、字段名大小写（true 当前表名与类名称相同时，则自动省略该属性，反之 false）</param>
public static Int32 BuildTables(IList<IDataTable> tables, String output = null, String nameSpace = null, String connName = null, String baseClass = null, Boolean chineseFileName = true, Boolean ignoreNameCase = true)
{
if (tables == null || tables.Count == 0) return 0;
output = output.GetBasePath();
// 连接名
if (connName.IsNullOrEmpty() && !nameSpace.IsNullOrEmpty() && nameSpace.Contains(".")) connName = nameSpace.Substring(nameSpace.LastIndexOf(".") + 1);
//XTrace.WriteLine("代码生成：{0} 输出：{1} 命名空间：{2} 连接名：{3} 基类：{4}", tables.Count, output, nameSpace, connName, baseClass);
var count = 0;
foreach (var item in tables)
{
var builder = new EntityBuilder
{
Table = item,
AllTables = tables,
GenericType = item.Properties["RenderGenEntity"].ToBoolean()
};
// 命名空间
var str = item.Properties["Namespace"];
if (str.IsNullOrEmpty()) str = nameSpace;
builder.Namespace = str;
// 连接名
str = item.ConnName;
if (str.IsNullOrEmpty()) str = connName;
builder.ConnName = str;
// 基类
str = item.Properties["BaseClass"];
if (str.IsNullOrEmpty()) str = baseClass;
builder.BaseClass = str;
// 名称忽略大小写(默认忽略)
if (item.IgnoreNameCase.IsNullOrEmpty() && !ignoreNameCase) item.IgnoreNameCase = ignoreNameCase + "";
item.Properties.Remove("NameIgnoreCase");
if (Debug) builder.Log = XTrace.Log;
builder.Execute();
// 输出目录
str = item.Properties["Output"];
str = str.IsNullOrEmpty() ? output : str.GetBasePath();
builder.Output = str;
builder.Save(null, true, chineseFileName);
builder.Business = true;
builder.Execute();
builder.Save(null, false, chineseFileName);
count++;
}
return count;
}
#endregion
#region 基础
/// <summary>执行生成</summary>
public override void Execute()
{
// 增加常用命名空间
if (Business) AddNameSpace();
base.Execute();
}
/// <summary>实体类头部</summary>
protected override void BuildClassHeader()
{
// 泛型实体类增加默认实例
if (GenericType && Business)
{
WriteLine("/// <summary>{0}</summary>", Table.DisplayName);
WriteLine("[Serializable]");
WriteLine("[ModelCheckMode(ModelCheckModes.CheckTableWhenFirstUse)]");
WriteLine("public class {0} : {0}<{0}> {{ }}", Table.Name);
WriteLine();
}
base.BuildClassHeader();
}
/// <summary>获取类名</summary>
/// <returns></returns>
protected override String GetClassName()
{
// 类名
var name = base.GetClassName();
if (GenericType) name += "<TEntity>";
return name;
}
/// <summary>获取基类</summary>
/// <returns></returns>
protected override String GetBaseClass()
{
// 数据类的基类只有接口，业务类基类则比较复杂
if (!Business) return "I" + Table.Name;
var name = BaseClass;
if (name.IsNullOrEmpty()) name = "Entity";
if (GenericType)
name = "{0}<TEntity> where TEntity : {1}<TEntity>, new()".F(name, Table.Name);
else
name = "{0}<{1}>".F(name, Table.Name);
return name;
//return base.GetBaseClass();
}
/// <summary>保存</summary>
/// <param name="ext"></param>
/// <param name="overwrite"></param>
/// <param name="chineseFileName"></param>
public override String Save(String ext = null, Boolean overwrite = true, Boolean chineseFileName = true)
{
if (ext.IsNullOrEmpty() && Business)
{
ext = ".Biz.cs";
//overwrite = false;
}
return base.Save(ext, overwrite, chineseFileName);
}
/// <summary>生成尾部</summary>
protected override void OnExecuted()
{
// 类接口
WriteLine("}");
if (!Business)
{
WriteLine();
BuildInterface();
}
var ns = Namespace;
if (!ns.IsNullOrEmpty())
{
Writer.Write("}");
}
}
/// <summary>增加常用命名空间</summary>
protected virtual void AddNameSpace()
{
var us = Usings;
if (!Pure && !us.Contains("System.Web"))
{
us.Add("System.IO");
us.Add("System.Linq");
us.Add("System.Reflection");
us.Add("System.Text");
us.Add("System.Threading.Tasks");
us.Add("System.Web");
us.Add("System.Web.Script.Serialization");
us.Add("System.Xml.Serialization");
us.Add("System.Runtime.Serialization");
us.Add("NewLife");
us.Add("NewLife.Data");
us.Add("NewLife.Model");
us.Add("NewLife.Log");
us.Add("NewLife.Reflection");
us.Add("NewLife.Threading");
us.Add("NewLife.Web");
us.Add("XCode.Cache");
us.Add("XCode.Membership");
}
}
#endregion
#region 数据类
/// <summary>实体类头部</summary>
protected override void BuildAttribute()
{
if (Business)
{
WriteLine("/// <summary>{0}</summary>", Table.Description);
return;
}
base.BuildAttribute();
var dt = Table;
foreach (var item in dt.Indexes)
{
WriteLine("[BindIndex(\"{0}\", {1}, \"{2}\")]", item.Name, item.Unique.ToString().ToLower(), item.Columns.Join());
}
var cn = dt.Properties["ConnName"];
if (cn.IsNullOrEmpty()) cn = ConnName;
WriteLine("[BindTable(\"{0}\", Description = \"{1}\", ConnName = \"{2}\", DbType = DatabaseType.{3})]", dt.TableName, dt.Description, cn, dt.DbType);
}
/// <summary>生成每一项</summary>
protected override void BuildItem(IDataColumn column)
{
var dc = column;
var type = dc.Properties["Type"];
if (type.IsNullOrEmpty()) type = dc.DataType?.Name;
// 字段
WriteLine("private {0} _{1};", type, dc.Name);
// 注释
var des = dc.Description;
WriteLine("/// <summary>{0}</summary>", des);
// 附加特性
if (dc.Properties.TryGetValue("Attribute", out var att))
WriteLine("[{0}]", att.Replace("{name}", dc.Name));
if (!Pure)
{
var dis = dc.DisplayName;
if (!dis.IsNullOrEmpty()) WriteLine("[DisplayName(\"{0}\")]", dis);
if (!des.IsNullOrEmpty()) WriteLine("[Description(\"{0}\")]", des);
}
WriteLine("[DataObjectField({0}, {1}, {2}, {3})]", dc.PrimaryKey.ToString().ToLower(), dc.Identity.ToString().ToLower(), dc.Nullable.ToString().ToLower(), dc.Length);
// 支持生成带精度的特性
if (!dc.ItemType.IsNullOrEmpty())
WriteLine("[BindColumn(\"{0}\", \"{1}\", \"{2}\", ItemType = \"{3}\")]", dc.ColumnName, dc.Description, dc.RawType, dc.ItemType);
else if (dc.Precision > 0 || dc.Scale > 0)
WriteLine("[BindColumn(\"{0}\", \"{1}\", \"{2}\", Precision = {3}, Scale = {4})]", dc.ColumnName, dc.Description, dc.RawType, dc.Precision, dc.Scale);
else
WriteLine("[BindColumn(\"{0}\", \"{1}\", \"{2}\"{3})]", dc.ColumnName, dc.Description, dc.RawType, dc.Master ? ", Master = true" : "");
if (Interface)
WriteLine("{0} {1} {{ get; set; }}", type, dc.Name);
else
WriteLine("public {0} {1} {{ get => _{1}; set {{ if (OnPropertyChanging(\"{1}\", value)) {{ _{1} = value; OnPropertyChanged(\"{1}\"); }} }} }}", type, dc.Name);
}
/// <summary>生成主体</summary>
protected override void BuildItems()
{
if (Business)
BuildBiz();
else
{
base.BuildItems();
WriteLine();
BuildIndex();
WriteLine();
BuildFieldName();
}
}
private void BuildIndex()
{
WriteLine("#region 获取/设置 字段值");
WriteLine("/// <summary>获取/设置 字段值</summary>");
WriteLine("/// <param name=\"name\">字段名</param>");
WriteLine("/// <returns></returns>");
WriteLine("public override Object this[String name]");
WriteLine("{");
// get
{
WriteLine("get");
WriteLine("{");
{
WriteLine("switch (name)");
WriteLine("{");
foreach (var dc in Table.Columns)
{
WriteLine("case \"{0}\": return _{0};", dc.Name);
}
WriteLine("default: return base[name];");
WriteLine("}");
}
WriteLine("}");
}
// set
WriteLine("set");
WriteLine("{");
{
WriteLine("switch (name)");
WriteLine("{");
var conv = typeof(Convert);
foreach (var dc in Table.Columns)
{
var type = dc.Properties["Type"];
if (type.IsNullOrEmpty()) type = dc.DataType?.Name;
if (!type.IsNullOrEmpty())
{
if (!type.Contains("."))
{
}
if (!type.Contains(".") && conv.GetMethod("To" + type, new Type[] { typeof(Object) }) != null)
{
switch (type)
{
case "Int32":
WriteLine("case \"{0}\": _{0} = value.ToInt(); break;", dc.Name);
break;
case "Int64":
WriteLine("case \"{0}\": _{0} = value.ToLong(); break;", dc.Name);
break;
case "Double":
WriteLine("case \"{0}\": _{0} = value.ToDouble(); break;", dc.Name);
break;
case "Boolean":
WriteLine("case \"{0}\": _{0} = value.ToBoolean(); break;", dc.Name);
break;
case "DateTime":
WriteLine("case \"{0}\": _{0} = value.ToDateTime(); break;", dc.Name);
break;
default:
WriteLine("case \"{0}\": _{0} = Convert.To{1}(value); break;", dc.Name, type);
break;
}
}
else
{
try
{
// 特殊支持枚举
var type2 = type.GetTypeEx(false);
if (type2 != null && type2.IsEnum)
WriteLine("case \"{0}\": _{0} = ({1})value.ToInt(); break;", dc.Name, type);
else
WriteLine("case \"{0}\": _{0} = ({1})value; break;", dc.Name, type);
}
catch (Exception ex)
{
XTrace.WriteException(ex);
WriteLine("case \"{0}\": _{0} = ({1})value; break;", dc.Name, type);
}
}
}
}
WriteLine("default: base[name] = value; break;");
WriteLine("}");
}
WriteLine("}");
WriteLine("}");
WriteLine("#endregion");
}
private void BuildFieldName()
{
WriteLine("#region 字段名");
WriteLine("/// <summary>取得{0}字段信息的快捷方式</summary>", Table.DisplayName);
WriteLine("public partial class _");
WriteLine("{");
foreach (var dc in Table.Columns)
{
WriteLine("/// <summary>{0}</summary>", dc.Description);
WriteLine("public static readonly Field {0} = FindByName(\"{0}\");", dc.Name);
WriteLine();
}
WriteLine("static Field FindByName(String name) => Meta.Table.FindByName(name);");
WriteLine("}");
WriteLine();
WriteLine("/// <summary>取得{0}字段名称的快捷方式</summary>", Table.DisplayName);
WriteLine("public partial class __");
WriteLine("{");
var k = Table.Columns.Count;
foreach (var dc in Table.Columns)
{
WriteLine("/// <summary>{0}</summary>", dc.Description);
WriteLine("public const String {0} = \"{0}\";", dc.Name);
if (--k > 0) WriteLine();
}
WriteLine("}");
WriteLine("#endregion");
}
private void BuildInterface()
{
var dt = Table;
WriteLine("/// <summary>{0}接口</summary>", dt.Description);
WriteLine("public partial interface I{0}", dt.Name);
WriteLine("{");
WriteLine("#region 属性");
var k = Table.Columns.Count;
foreach (var dc in Table.Columns)
{
var type = dc.Properties["Type"];
if (type.IsNullOrEmpty()) type = dc.DataType?.Name;
WriteLine("/// <summary>{0}</summary>", dc.Description);
WriteLine("{0} {1} {{ get; set; }}", type, dc.Name);
if (--k > 0) WriteLine();
}
WriteLine("#endregion");
WriteLine();
WriteLine("#region 获取/设置 字段值");
WriteLine("/// <summary>获取/设置 字段值</summary>");
WriteLine("/// <param name=\"name\">字段名</param>");
WriteLine("/// <returns></returns>");
WriteLine("Object this[String name] { get; set; }");
WriteLine("#endregion");
WriteLine("}");
}
#endregion
#region 业务类
/// <summary>生成实体类业务部分</summary>
protected virtual void BuildBiz()
{
BuildAction();
WriteLine();
BuildExtendProperty();
WriteLine();
BuildExtendSearch();
WriteLine();
BuildSearch();
WriteLine();
BuildBusiness();
}
/// <summary>对象操作</summary>
protected virtual void BuildAction()
{
WriteLine("#region 对象操作");
// 静态构造函数
BuildCctor();
// 验证函数
WriteLine();
BuildValid();
// 初始化数据
WriteLine();
BuildInitData();
// 重写添删改
WriteLine();
BuildOverride();
WriteLine("#endregion");
}
/// <summary>生成静态构造函数</summary>
protected virtual void BuildCctor()
{
WriteLine("static {0}()", Table.Name);
WriteLine("{");
{
if (GenericType)
{
WriteLine("// 用于引发基类的静态构造函数，所有层次的泛型实体类都应该有一个");
WriteLine("var entity = new TEntity();");
WriteLine();
}
// 第一个非自增非主键整型字段，生成累加字段代码
var dc = Table.Columns.FirstOrDefault(e => !e.Identity && !e.PrimaryKey && (e.DataType == typeof(Int32) || e.DataType == typeof(Int64)));
if (dc != null)
{
WriteLine("// 累加字段，生成 Update xx Set Count=Count+1234 Where xxx");
WriteLine("//var df = Meta.Factory.AdditionalFields;");
WriteLine("//df.Add(nameof({0}));", dc.Name);
}
var ns = new HashSet<String>(Table.Columns.Select(e => e.Name), StringComparer.OrdinalIgnoreCase);
WriteLine();
WriteLine("// 过滤器 UserModule、TimeModule、IPModule");
if (ns.Contains("CreateUserID") || ns.Contains("CreateUser") || ns.Contains("UpdateUserID") || ns.Contains("UpdateUser"))
WriteLine("Meta.Modules.Add<UserModule>();");
if (ns.Contains("CreateTime") || ns.Contains("UpdateTime"))
WriteLine("Meta.Modules.Add<TimeModule>();");
if (ns.Contains("CreateIP") || ns.Contains("UpdateIP"))
WriteLine("Meta.Modules.Add<IPModule>();");
// 唯一索引不是主键，又刚好是Master，使用单对象缓存从键
var di = Table.Indexes.FirstOrDefault(e => e.Unique && e.Columns.Length == 1 && Table.GetColumn(e.Columns[0]).Master);
if (di != null)
{
dc = Table.GetColumn(di.Columns[0]);
WriteLine();
WriteLine("// 单对象缓存");
WriteLine("var sc = Meta.SingleCache;");
WriteLine("sc.FindSlaveKeyMethod = k => Find(_.{0} == k);", dc.Name);
WriteLine("sc.GetSlaveKeyMethod = e => e.{0};", dc.Name);
}
}
WriteLine("}");
}
/// <summary>数据验证</summary>
protected virtual void BuildValid()
{
WriteLine("/// <summary>验证数据，通过抛出异常的方式提示验证失败。</summary>");
WriteLine("/// <param name=\"isNew\">是否插入</param>");
WriteLine("public override void Valid(Boolean isNew)");
WriteLine("{");
{
WriteLine("// 如果没有脏数据，则不需要进行任何处理");
WriteLine("if (!HasDirty) return;");
// 非空判断
var cs = Table.Columns.Where(e => !e.Nullable && e.DataType == typeof(String)).ToArray();
if (cs.Length > 0)
{
WriteLine();
WriteLine("// 这里验证参数范围，建议抛出参数异常，指定参数名，前端用户界面可以捕获参数异常并聚焦到对应的参数输入框");
foreach (var item in cs)
{
WriteLine("if ({0}.IsNullOrEmpty()) throw new ArgumentNullException({1}, \"{2}不能为空！\");", item.Name, NameOf(item.Name), item.DisplayName ?? item.Name);
}
}
//WriteLine();
//WriteLine("// 建议先调用基类方法，基类方法会对唯一索引的数据进行验证");
//WriteLine("base.Valid(isNew);");
WriteLine();
WriteLine("// 在新插入数据或者修改了指定字段时进行修正");
// 货币类型保留小数位数
cs = Table.Columns.Where(e => e.DataType == typeof(Decimal)).ToArray();
if (cs.Length > 0)
{
WriteLine("// 货币保留6位小数");
foreach (var item in cs)
{
WriteLine("{0} = Math.Round({0}, 6);", item.Name);
}
}
// 处理当前已登录用户信息
cs = Table.Columns.Where(e => e.DataType == typeof(Int32) && e.Name.EqualIgnoreCase("CreateUserID", "UpdateUserID")).ToArray();
if (cs.Length > 0)
{
WriteLine("// 处理当前已登录用户信息，可以由UserModule过滤器代劳");
WriteLine("/*var user = ManageProvider.User;");
WriteLine("if (user != null)");
WriteLine("{");
foreach (var item in cs)
{
if (item.Name.EqualIgnoreCase("CreateUserID"))
WriteLine("if (isNew && !Dirtys[{0}]) {1} = user.ID;", NameOf(item.Name), item.Name);
else
WriteLine("if (!Dirtys[{0}]) {1} = user.ID;", NameOf(item.Name), item.Name);
}
WriteLine("}*/");
}
var dc = Table.Columns.FirstOrDefault(e => e.Name.EqualIgnoreCase("CreateTime"));
if (dc != null) WriteLine("//if (isNew && !Dirtys[{0}]) {1} = DateTime.Now;", NameOf(dc.Name), dc.Name);
dc = Table.Columns.FirstOrDefault(e => e.Name.EqualIgnoreCase("UpdateTime"));
if (dc != null) WriteLine("//if (!Dirtys[{0}]) {1} = DateTime.Now;", NameOf(dc.Name), dc.Name);
dc = Table.Columns.FirstOrDefault(e => e.Name.EqualIgnoreCase("CreateIP"));
if (dc != null) WriteLine("//if (isNew && !Dirtys[{0}]) {1} = ManageProvider.UserHost;", NameOf(dc.Name), dc.Name);
dc = Table.Columns.FirstOrDefault(e => e.Name.EqualIgnoreCase("UpdateIP"));
if (dc != null) WriteLine("//if (!Dirtys[{0}]) {1} = ManageProvider.UserHost;", NameOf(dc.Name), dc.Name);
// 唯一索引检查唯一性
var dis = Table.Indexes.Where(e => e.Unique).ToArray();
if (dis.Length > 0)
{
WriteLine();
WriteLine("// 检查唯一索引");
foreach (var item in dis)
{
//WriteLine("if (!_IsFromDatabase) CheckExist(isNew, {0});", Table.GetColumns(item.Columns).Select(e => "__." + e.Name).Join(", "));
WriteLine("// CheckExist(isNew, {0});", Table.GetColumns(item.Columns).Select(e => $"nameof({e.Name})").Join(", "));
}
}
}
WriteLine("}");
}
/// <summary>初始化数据</summary>
protected virtual void BuildInitData()
{
var name = GenericType ? "TEntity" : Table.Name;
WriteLine("///// <summary>首次连接数据库时初始化数据，仅用于实体类重载，用户不应该调用该方法</summary>");
WriteLine("//[EditorBrowsable(EditorBrowsableState.Never)]");
//zilo555 去掉internal
WriteLine("//protected override void InitData()");
WriteLine("//{");
WriteLine("// // InitData一般用于当数据表没有数据时添加一些默认数据，该实体类的任何第一次数据库操作都会触发该方法，默认异步调用");
WriteLine("// if (Meta.Session.Count > 0) return;");
WriteLine();
WriteLine("// if (XTrace.Debug) XTrace.WriteLine(\"开始初始化{0}[{1}]数据……\");", name, Table.DisplayName);
WriteLine();
WriteLine("// var entity = new {0}();", name);
foreach (var dc in Table.Columns)
{
switch (dc.DataType.GetTypeCode())
{
case TypeCode.Boolean:
WriteLine("// entity.{0} = true;", dc.Name);
break;
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
case TypeCode.UInt32:
case TypeCode.Int64:
case TypeCode.UInt64:
WriteLine("// entity.{0} = 0;", dc.Name);
break;
case TypeCode.Single:
case TypeCode.Double:
case TypeCode.Decimal:
WriteLine("// entity.{0} = 0.0;", dc.Name);
break;
case TypeCode.DateTime:
WriteLine("// entity.{0} = DateTime.Now;", dc.Name);
break;
case TypeCode.String:
WriteLine("// entity.{0} = \"abc\";", dc.Name);
break;
default:
break;
}
}
WriteLine("// entity.Insert();");
WriteLine();
WriteLine("// if (XTrace.Debug) XTrace.WriteLine(\"完成初始化{0}[{1}]数据！\");", name, Table.DisplayName);
WriteLine("//}");
}
/// <summary>重写添删改</summary>
protected virtual void BuildOverride()
{
WriteLine("///// <summary>已重载。基类先调用Valid(true)验证数据，然后在事务保护内调用OnInsert</summary>");
WriteLine("///// <returns></returns>");
WriteLine("//public override Int32 Insert()");
WriteLine("//{");
WriteLine("// return base.Insert();");
WriteLine("//}");
WriteLine();
WriteLine("///// <summary>已重载。在事务保护范围内处理业务，位于Valid之后</summary>");
WriteLine("///// <returns></returns>");
WriteLine("//protected override Int32 OnDelete()");
WriteLine("//{");
WriteLine("// return base.OnDelete();");
WriteLine("//}");
}
/// <summary>扩展属性</summary>
protected virtual void BuildExtendProperty()
{
WriteLine("#region 扩展属性");
foreach (var dc in Table.Columns)
{
// 找到名字映射
var dt = AllTables.FirstOrDefault(e => e.PrimaryKeys.Length == 1 && e.PrimaryKeys[0].DataType == dc.DataType && (e.Name + e.PrimaryKeys[0].Name).EqualIgnoreCase(dc.Name));
if (dt != null)
{
// 属性名
var pname = dt.Name;
// 备注
var dis = dc.DisplayName;
if (dis.IsNullOrEmpty()) dis = dt.DisplayName;
var pk = dt.PrimaryKeys[0];
WriteLine("/// <summary>{0}</summary>", dis);
WriteLine("[XmlIgnore, IgnoreDataMember]");
WriteLine("//[ScriptIgnore]");
WriteLine("public {1} {1} => Extends.Get({0}, k => {1}.FindBy{3}({2}));", NameOf(pname), dt.Name, dc.Name, pk.Name);
// 主字段
var master = dt.Master ?? dt.GetColumn("Name");
// 扩展属性有可能恰巧跟已有字段同名
if (master != null && !dt.Columns.Any(e => e.Name.EqualIgnoreCase(pname + master.Name)))
{
WriteLine();
WriteLine("/// <summary>{0}</summary>", dis);
WriteLine("[XmlIgnore, IgnoreDataMember]");
WriteLine("//[ScriptIgnore]");
if (!dis.IsNullOrEmpty()) WriteLine("[DisplayName(\"{0}\")]", dis);
WriteLine("[Map(nameof({0}), typeof({1}), \"{2}\")]", dc.Name, dt.Name, pk.Name);
if (master.DataType == typeof(String))
WriteLine("public {2} {0}{1} => {0}?.{1};", pname, master.Name, master.DataType.Name);
else
WriteLine("public {2} {0}{1} => {0} != null ? {0}.{1} : 0;", pname, master.Name, master.DataType.Name);
}
}
}
WriteLine("#endregion");
}
/// <summary>扩展查询</summary>
protected virtual void BuildExtendSearch()
{
WriteLine("#region 扩展查询");
// 主键
IDataColumn pk = null;
if (Table.PrimaryKeys.Length == 1)
{
pk = Table.PrimaryKeys[0];
var name = pk.CamelName();
WriteLine("/// <summary>根据{0}查找</summary>", pk.DisplayName);
WriteLine("/// <param name=\"{0}\">{1}</param>", name, pk.DisplayName);
WriteLine("/// <returns>实体对象</returns>");
WriteLine("public static {3} FindBy{0}({1} {2})", pk.Name, pk.DataType.Name, name, GenericType ? "TEntity" : Table.Name);
WriteLine("{");
{
if (pk.DataType.IsInt())
WriteLine("if ({0} <= 0) return null;", name);
else if (pk.DataType == typeof(String))
WriteLine("if ({0}.IsNullOrEmpty()) return null;", name);
WriteLine();
WriteLine("// 实体缓存");
WriteLine("if (Meta.Session.Count < 1000) return Meta.Cache.Find(e => e.{0} == {1});", pk.Name, name);
WriteLine();
WriteLine("// 单对象缓存");
WriteLine("return Meta.SingleCache[{0}];", name);
WriteLine();
WriteLine("//return Find(_.{0} == {1});", pk.Name, name);
}
WriteLine("}");
}
// 索引
foreach (var di in Table.Indexes)
{
// 跳过主键
if (di.Columns.Length == 1 && pk != null && di.Columns[0].EqualIgnoreCase(pk.Name, pk.ColumnName)) continue;
var cs = Table.GetColumns(di.Columns);
if (cs == null || cs.Length != di.Columns.Length) continue;
// 只有整数和字符串能生成查询函数
if (!cs.All(e => e.DataType.IsInt() || e.DataType == typeof(String))) continue;
WriteLine();
WriteLine("/// <summary>根据{0}查找</summary>", cs.Select(e => e.DisplayName).Join("、"));
foreach (var dc in cs)
{
WriteLine("/// <param name=\"{0}\">{1}</param>", dc.CamelName(), dc.DisplayName);
}
// 返回类型
var rt = GenericType ? "TEntity" : Table.Name;
if (!di.Unique) rt = "IList<{0}>".F(rt);
WriteLine("/// <returns>{0}</returns>", di.Unique ? "实体对象" : "实体列表");
WriteLine("public static {2} Find{3}By{0}({1})", cs.Select(e => e.Name).Join("And"), cs.Select(e => e.DataType.Name + " " + e.CamelName()).Join(", "), rt, di.Unique ? "" : "All");
WriteLine("{");
{
var exp = new StringBuilder();
var wh = new StringBuilder();
foreach (var dc in cs)
{
if (exp.Length > 0) exp.Append(" & ");
exp.AppendFormat("_.{0} == {1}", dc.Name, dc.CamelName());
if (wh.Length > 0) wh.Append(" && ");
wh.AppendFormat("e.{0} == {1}", dc.Name, dc.CamelName());
}
if (di.Unique)
{
WriteLine("// 实体缓存");
WriteLine("if (Meta.Session.Count < 1000) return Meta.Cache.Find(e => {0});", wh);
// 单对象缓存
if (cs.Length == 1 && cs[0].Master)
{
WriteLine();
WriteLine("// 单对象缓存");
WriteLine("//return Meta.SingleCache.GetItemWithSlaveKey({0}) as {1};", cs[0].CamelName(), rt);
}
WriteLine();
WriteLine("return Find({0});", exp);
}
else
{
WriteLine("// 实体缓存");
WriteLine("if (Meta.Session.Count < 1000) return Meta.Cache.FindAll(e => {0});", wh);
WriteLine();
WriteLine("return FindAll({0});", exp);
}
}
WriteLine("}");
}
WriteLine("#endregion");
}
/// <summary>高级查询</summary>
protected virtual void BuildSearch()
{
// 收集索引信息，索引中的所有字段都参与，构造一个高级查询模板
var idx = Table.Indexes ?? new List<IDataIndex>();
var cs = new List<IDataColumn>();
if (idx != null && idx.Count > 0)
{
// 索引中的所有字段，按照表字段顺序
var dcs = idx.SelectMany(e => e.Columns).Distinct().ToArray();
foreach (var dc in Table.Columns)
{
// 主键和自增，不参与
if (dc.PrimaryKey || dc.Identity) continue;
if (dc.Name.EqualIgnoreCase(dcs) || dc.ColumnName.EqualIgnoreCase(dcs)) cs.Add(dc);
}
}
var returnName = GenericType ? "TEntity" : Table.Name;
WriteLine("#region 高级查询");
if (cs.Count > 0)
{
// 时间字段
var dcTime = cs.FirstOrDefault(e => e.DataType == typeof(DateTime));
cs.Remove(dcTime);
// 可用于关键字模糊搜索的字段
var keys = Table.Columns.Where(e => e.DataType == typeof(String) && !cs.Contains(e)).ToList();
// 注释部分
WriteLine("/// <summary>高级查询</summary>");
foreach (var dc in cs)
{
WriteLine("/// <param name=\"{0}\">{1}</param>", dc.CamelName(), dc.Description);
}
if (dcTime != null)
{
WriteLine("/// <param name=\"start\">{0}开始</param>", dcTime.DisplayName);
WriteLine("/// <param name=\"end\">{0}结束</param>", dcTime.DisplayName);
}
WriteLine("/// <param name=\"key\">关键字</param>");
WriteLine("/// <param name=\"page\">分页参数信息。可携带统计和数据权限扩展查询等信息</param>");
WriteLine("/// <returns>实体列表</returns>");
// 参数部分
var pis = cs.Join(", ", dc => $"{dc.DataType.Name} {dc.CamelName()}");
var piTime = dcTime == null ? "" : "DateTime start, DateTime end, ";
WriteLine("public static IList<{0}> Search({1}, {2}String key, PageParameter page)", returnName, pis, piTime);
WriteLine("{");
{
WriteLine("var exp = new WhereExpression();");
// 构造表达式
WriteLine();
foreach (var dc in cs)
{
if (dc.DataType.IsInt())
WriteLine("if ({0} >= 0) exp &= _.{1} == {0};", dc.CamelName(), dc.Name);
else if (dc.DataType == typeof(Boolean))
WriteLine("if ({0} != null) exp &= _.{1} == {0};", dc.CamelName(), dc.Name);
else if (dc.DataType == typeof(String))
WriteLine("if (!{0}.IsNullOrEmpty()) exp &= _.{1} == {0};", dc.CamelName(), dc.Name);
}
if (dcTime != null)
{
WriteLine("exp &= _.{0}.Between(start, end);", dcTime.Name);
}
if (keys.Count > 0)
{
WriteLine("if (!key.IsNullOrEmpty()) exp &= {0};", keys.Join(" | ", k => $"_.{k.Name}.Contains(key)"));
}
// 查询返回
WriteLine();
WriteLine("return FindAll(exp, page);");
}
WriteLine("}");
}
// 字段缓存，用于魔方前台下拉选择
{
// 主键和时间字段
var pk = Table.Columns.FirstOrDefault(e => e.Identity);
var pname = pk?.Name ?? "Id";
var dcTime = cs.FirstOrDefault(e => e.DataType == typeof(DateTime));
var tname = dcTime?.Name ?? "CreateTime";
// 遍历索引，第一个字段是字符串类型，则为其生成下拉选择
var count = 0;
foreach (var di in idx)
{
if (di.Columns == null || di.Columns.Length == 0) continue;
// 单字段唯一索引，不需要
if (di.Unique && di.Columns.Length == 1) continue;
var dc = Table.GetColumn(di.Columns[0]);
if (dc == null || dc.DataType != typeof(String) || dc.Master) continue;
var name = dc.Name;
WriteLine();
WriteLine($"// Select Count({pname}) as {pname},{name} From {Table.Name} Where {tname}>'2020-01-24 00:00:00' Group By {name} Order By {pname} Desc limit 20");
WriteLine($"static readonly FieldCache<{returnName}> _{name}Cache = new FieldCache<{returnName}>(nameof({name}))");
WriteLine("{");
{
WriteLine($"//Where = _.{tname} > DateTime.Today.AddDays(-30) & Expression.Empty");
}
WriteLine("};");
WriteLine();
WriteLine($"/// <summary>获取{dc.DisplayName}列表，字段缓存10分钟，分组统计数据最多的前20种，用于魔方前台下拉选择</summary>");
WriteLine("/// <returns></returns>");
WriteLine($"public static IDictionary<String, String> Get{name}List() => _{name}Cache.FindAllName();");
count++;
}
// 如果没有输出，则生成一个注释的模板
if (count == 0)
{
WriteLine();
WriteLine($"// Select Count({pname}) as {pname},Category From {Table.Name} Where {tname}>'2020-01-24 00:00:00' Group By Category Order By {pname} Desc limit 20");
WriteLine($"//static readonly FieldCache<{returnName}> _CategoryCache = new FieldCache<{returnName}>(nameof(Category))");
WriteLine("//{");
{
WriteLine($"//Where = _.{tname} > DateTime.Today.AddDays(-30) & Expression.Empty");
}
WriteLine("//};");
WriteLine();
WriteLine("///// <summary>获取类别列表，字段缓存10分钟，分组统计数据最多的前20种，用于魔方前台下拉选择</summary>");
WriteLine("///// <returns></returns>");
WriteLine("//public static IDictionary<String, String> GetCategoryList() => _CategoryCache.FindAllName();");
}
}
WriteLine("#endregion");
}
/// <summary>业务操作</summary>
protected virtual void BuildBusiness()
{
WriteLine("#region 业务操作");
WriteLine("#endregion");
}
#endregion
}
}
|