CodeSmith生成数据库视图实体类

CodeSmith生成数据库视图实体类



打开开始--所有程序---CodeSmith Professional 5.0.1.4983--CodeSmith Explorer

新建立到所要操作数据库的连接名称自定义为DB

打开开始--所有程序---CodeSmith Professional 5.0.1.4983--CodeSmith Studio

新建立一个模板文件BusinessObjctForView.cst(模板文件可以Build和运行)

新建立一个文件ViewUtility.cs(数据库字段到VS2005数据类型映射,命名空间和上面的命名空间保持一致)

COPY下面的代码然后点tools/build/run就完成了数据表实体类文件的生成

注意由模板BusinessObjctForView.cst生成的"数据表名.cs"实体类文件所属命名空间Common.Model和调用的(ViewUtility.cs)类文件的所属命名空间Common.Data的存在与否.在VS2005的工程中必须存在或者按您的需求自行更改。



BusinessObjctForView.cst代码如下:

<%@ CodeTemplate Language="C#" ResponseEncoding="UTF-8" TargetLanguage="T-SQL" Description="生成更新视图的存储过程." %>
<%@ Assembly Name="SchemaExplorer" %>
<%@ Import Namespace="SchemaExplorer" %>
<%@ Property Name="SourceTable" Type="SchemaExplorer.ViewSchema" Category="Context" Description="存储过程操作的视图名称." %>
<%@ Assembly Src="ViewUtility.cs" %>
<%@ Import Namespace="Common.Data" %>
<script runat="template">
ViewUtility rule=new ViewUtility();
</script>
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;

namespace Common.Model
{
/// <summary>
/// 读取数据库对应的视图 '<%= SourceTable.Name %>'
/// </summary>
[Serializable]
public class <%= SourceTable.Name %>
{
#region Private Member
<% for (int i = 0; i < SourceTable.Columns.Count; i++) { %>
private <%= rule.GetCSharpVariableType(SourceTable.Columns[i]) %> _<%= SourceTable.Columns[i].Name %>;
<% } %>
#endregion

#region Constructor
public <%= SourceTable.Name %>() {}

public <%= SourceTable.Name %>(
<% for (int i = 0; i < SourceTable.Columns.Count-1; i++) { %>
<%= rule.GetCSharpVariableType(SourceTable.Columns[i]) %> <%= SourceTable.Columns[i].Name %>,
<% } %>
<%= rule.GetCSharpVariableType(SourceTable.Columns[SourceTable.Columns.Count-1]) %> <%= SourceTable.Columns[SourceTable.Columns.Count-1].Name %>
)
{
<% for (int i = 0; i < SourceTable.Columns.Count; i++) { %>
_<%= SourceTable.Columns[i].Name %> = <%= SourceTable.Columns[i].Name %>;
<% } %>
}
#endregion

#region Public Properties
<% for (int i = 0; i < SourceTable.Columns.Count; i++) { %>
public <%= rule.GetCSharpVariableType(SourceTable.Columns[i]) %> <%= rule.GetCamelCaseName(SourceTable.Columns[i].Name) %>
{
get { return _<%= SourceTable.Columns[i].Name %>; }
set { _<%= SourceTable.Columns[i].Name %> = value; }
}
<% } %>
#endregion
}
}

ViewUtility.cs代码如下:

using System;
using System.Text;
using CodeSmith.Engine;
using SchemaExplorer;
using System.ComponentModel;
using System.Data;

namespace Common.Data
{
//// <summary>
/// CodeSmith生成SQL Server视图的实体类脚本
/// </summary>
public class ViewUtility
{

//get Columns info by TableName
public ViewColumnSchemaCollection GetColumnCollectionByTable(ViewSchema table)
{
ViewColumnSchemaCollection columns = new ViewColumnSchemaCollection(table.Columns);
return columns;
}

//Get camelcase name,such as Customer,
public string GetCamelCaseName(string str)
{
return str.Substring(0,1).ToUpper()+str.Substring(1);
}

//Get ,user,private const String USER_FIELD = "User"
public string GetMemberConstantDeclarationStatement(ColumnSchema column)
{
return GetMemberConstantDeclarationStatement("public const String ",column);
}

//such as public const String USER_TABLE = "User"
public string GetTableConstantDeclarationStatement(ViewSchema table)
{
return GetMemberConstantDeclarationStatement("public const String ",table);
}
//suck as USER_TABLE
public string GetUpperStatement(ViewSchema table)
{
return table.Name.ToUpper()+"_TABLE";
}
//suck as USER_FIELD
public string GetUpperStatement(ColumnSchema column)
{
return column.Name.ToUpper()+"_FIELD";
}

// such as USER_TABLE = "User"
public string GetMemberConstantDeclarationStatement(string protectionLevel, ViewSchema table)
{
return protectionLevel+GetUpperStatement(table)+" = "+GetCamelCaseName(table.Name)+"";
}

//such as USERID_FIELD = "Userid"
public string GetMemberConstantDeclarationStatement(string protectionLevel,ColumnSchema column)
{
return protectionLevel+GetUpperStatement(column)+" = "+GetCamelCaseName(column.Name)+"";
}

public string GetCSharpVariableType(ViewColumnSchema column)
{
switch(column.DataType)
{
case DbType.AnsiString: return "string";
case DbType.AnsiStringFixedLength: return "string";
case DbType.Binary: return "byte[]";
case DbType.Boolean: return "bool";
case DbType.Byte: return "int";
case DbType.Currency: return "decimal";
case DbType.Date: return "DataTime";
case DbType.DateTime: return "DateTime";
case DbType.Decimal: return "decimal";
case DbType.Double: return "double";
case DbType.Guid: return "Guid";
case DbType.Int16: return "short";
case DbType.Int32: return "int";
case DbType.Int64: return "long";
case DbType.Object: return "object";
case DbType.SByte: return "sbyte";
case DbType.Single: return "float";
case DbType.String: return "string";
case DbType.StringFixedLength: return "string";
case DbType.Time: return "TimeSpan";
case DbType.UInt16: return "ushort";
case DbType.UInt32: return "uint";
case DbType.UInt64: return "ulong";
case DbType.VarNumeric: return "decimal";
}

return null;
}

public string GetCSharpBaseType(ViewColumnSchema column)
{
switch(column.DataType)
{
case DbType.AnsiString: return "System.String";
case DbType.AnsiStringFixedLength: return "System.String";
case DbType.Binary: return "System.Byte[]";
case DbType.Boolean: return "System.Boolean";
case DbType.Byte: return "System.Int32";
case DbType.Currency: return "System.Decimal";
case DbType.Date: return "System.DataTime";
case DbType.DateTime: return "System.DataTime";
case DbType.Decimal: return "System.Decimal";
case DbType.Double: return "System.Double";
case DbType.Guid: return "System.Guid";
case DbType.Int16: return "System.Int16";
case DbType.Int32: return "System.Int32";
case DbType.Int64: return "System.Int64";
case DbType.Object: return "System.Object";
case DbType.SByte: return "System.SByte";
case DbType.Single: return "System.Single";
case DbType.String: return "System.String";
case DbType.StringFixedLength: return "System.String";
case DbType.Time: return "System.TimeSpan";
case DbType.UInt16: return "System.UInt16";
case DbType.UInt32: return "System.UInt32";
case DbType.UInt64: return "System.UInt64";
case DbType.VarNumeric: return "System.Decimal";
}
return null;
}
}
}