使用CodeSmith生成DAL操作模版
<%--
Name:
Author:
Description:
--%>
<%@ CodeTemplate Language="C#" TargetLanguage="C#" ResponseEncoding="UTF-8" Src="" Inherits="" Debug="False" Description="Template description here." %>
<%@ Property Name="TableName" Type="SchemaExplorer.TableSchema" Default="" Optional="false" Category="" Description="" OnChanged="" Editor="" EditorBase="" Serializer="" %>
<%@ Property Name="NameSpace" Type="System.String" Default="Szjdw.DAL" Optional="false" Category="" Description="" OnChanged="" Editor="" EditorBase="" Serializer="" %>
<%@ Property Name="opuser" Type="System.String" Default="" Optional="False" Category="" Description="请输入您的名字" %>
<%@ Assembly Name="SchemaExplorer" %>
<%@ Import Namespace="SchemaExplorer" %>
<%@ Map Name="CSharpAlias" Src="System-CSharpAlias" Description="System to C# Type Map" %>
/*
*本代码由代码生成器自动生成，请不要更改此文件的任何代码，如需要添加方法，请新建文件,并使用partial修饰符添加附加方法。
*生成时间：<%= DateTime.Now.ToLocalTime() %>
*生成者：<%= opuser %>
*/
using System;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Collections.Generic;
using Szjdw;
using Szjdw.Model;
using Szjdw.Data.Provider;
using Szjdw.Down;
namespace Szjdw.DAL
{
///<summary>
///表<%=TableName.Name%>的实体类
///</summary>
public class <%=TableName.Name%>View
{
/// <summary>
/// 将数据插入表
/// </summary>
/// <param name="M">赋值后的实体</param>
/// <returns></returns>
public static int Insert(<%=TableName.Name%> M)
{
SqlHelper Sql = new SqlHelper(SqlExt.ConnStr);
<%for(int i=0;i<TableName.NonPrimaryKeyColumns.Count;i++) {%>
Sql.Add("@<%=GetSqlParameterStatement(TableName.NonPrimaryKeyColumns[i])%>",<%=GetSqlDBType(TableName.Columns[i].NativeType)%>M.<%= StringUtil.ToPascalCase(TableName.Columns[i].Name) %>,<%= TableName.Columns[i].Size%>);
<%}%>
return Convert.ToInt32(Sql.ExecuteScalar("<%=TableName.Name%>_Insert").ToString());
}
/// <summary>
/// 将修改过的实体修改到数据库
/// </summary>
/// <param name="M">赋值后的实体</param>
/// <returns></returns>
public static void Update(<%=TableName.Name%> M)
{
SqlHelper Sql = new SqlHelper(SqlExt.ConnStr);
<%for(int i=0;i<TableName.NonPrimaryKeyColumns.Count;i++) {%>
Sql.Add("@<%=GetSqlParameterStatement(TableName.NonPrimaryKeyColumns[i])%>",<%=GetSqlDBType(TableName.Columns[i].NativeType)%>M.<%= StringUtil.ToPascalCase(CSharpAlias[TableName.Columns[i].Name]) %>,<%= TableName.Columns[i].Size%>);
<%}%>
Sql.ExecuteNonQuery("<%=TableName.Name%>_Update");
}
/// <summary>
/// 根据ID取得实体
/// </summary>
/// <param name="id">id,即编号主键</param>
/// <returns></returns>
public static <%=TableName.Name%> GetModelByID(int id)
{
SqlHelper Sql = new SqlHelper(SqlExt.ConnStr);
<%=TableName.Name%> M = new <%=TableName.Name%>();
SqlDataReader Rs = Sql.ExecuteReader(CommandType.Text, "select <%= getColunms() %> from <%=TableName.Name%> where id=" + id.ToString(), SqlHelper.ConnClose.Yes);
if (!Rs.Read())
{
M.Id=int.MinValue;
return M;
}
<% for(int i=0;i<TableName.NonPrimaryKeyColumns.Count;i++){ %>
M.<%= StringUtil.ToPascalCase(TableName.Columns[i].Name) %>=Convert.<%=GetCSharpVariableType(TableName.Columns[i])%>(Rs["<%= TableName.Columns[i].Name %>"]);
<%}%>
Rs.Close();
Rs = null;
return M;
}
/// <summary>
/// 根据条件语句取得实体
/// </summary>
/// <param name="m_where">条件语句，不包含“where”</param>
/// <returns></returns>
public static <%=TableName.Name%> Find(string m_where)
{
SqlHelper Sql = new SqlHelper(SqlExt.ConnStr);
<%=TableName.Name%> M = new <%=TableName.Name%>();
SqlDataReader Rs = Sql.ExecuteReader(CommandType.Text, "select <%= getColunms() %> from Ws_Software where " + m_where, SqlHelper.ConnClose.Yes);
if (!Rs.Read())
{
M.Id=int.MinValue;
return M;
}
<% for(int i=0;i<TableName.NonPrimaryKeyColumns.Count;i++){ %>
M.<%= StringUtil.ToPascalCase(TableName.Columns[i].Name) %>=Convert.<%=GetCSharpVariableType(TableName.Columns[i])%>(Rs["<%= TableName.Columns[i].Name %>"]);
<%}%>
Rs.Close();
Rs = null;
return M;
}
/// <summary>
/// 根据条件语句取得符合条件的数据表
/// </summary>
/// <param name="m_where">条件语句，不包含“where”</param>
/// <returns></returns>
public static DataTable getTable(string m_where)
{
SqlHelper Sql = new SqlHelper(SqlExt.ConnStr);
return Sql.ExecuteDataTable(CommandType.Text, "select <%= getColunms() %> from <%= TableName.Name %> where "+ m_where);
}
/// <summary>
/// 获取符合条件记录的条数
/// </summary>
/// <param name="m_where">条件语句，不包含“where”</param>
/// <returns></returns>
public static int Count(string m_where)
{
SqlHelper Sql = new SqlHelper(SqlExt.ConnStr);
return Convert.ToInt32(Sql.ExecuteScalar(CommandType.Text,"select count(1) from <%=TableName.Name%>"));
}
/// <summary>
/// 验证符合条件的记录是否存在
/// </summary>
/// <param name="m_where">条件语句，不包含“where”</param>
/// <returns></returns>
public static bool Exist(string m_where)
{
if(Count(m_where)>0)
{
return true;
}
return false;
}
/// <summary>
/// 获取符合条件记录的条数
/// </summary>
/// <param name="m_where">条件语句，不包含“where”</param>
/// <returns></returns>
public static List<<%=TableName.Name%>> GetModelList(string m_where)
{
List<<%=TableName.Name%>> Ms=new List<<%=TableName.Name%>>();
SqlHelper Sql = new SqlHelper(SqlExt.ConnStr);
DataTable dt=Sql.ExecuteDataTable(CommandType.Text, "select <%= getColunms() %> from <%= TableName.Name %> where "+m_where);
for(int i=0;i<dt.Rows.Count;i++)
{
<%=TableName.Name%> M=new <%=TableName.Name%>();
<% for(int i=0;i<TableName.NonPrimaryKeyColumns.Count;i++){ %>
M.<%= StringUtil.ToPascalCase(TableName.Columns[i].Name) %>=Convert.<%=GetCSharpVariableType(TableName.Columns[i])%>(dt.Rows[i]["<%= TableName.Columns[i].Name %>"].ToString());
<%}%>
Ms.Add(M);
}
return Ms;
}
}
}
<script runat="template">
// My methods here.
public string getColunms()
{
string returnValue="";
for(int i=0;i<TableName.NonPrimaryKeyColumns.Count;i++)
{
returnValue+=TableName.Columns[i].Name+",";
}
returnValue=returnValue.TrimEnd(',');
return returnValue;
}
public string GetSqlDBType(string type)
{
switch(type)
{
case "int": return "SqlDbType.Int,";
case "tinyint": return "SqlDbType.TinyInt,";
case "nvarchar": return "SqlDbType.NVarChar,";
case "datetime": return "SqlDbType.DateTime,";
case "char": return "SqlDbType.Char,";
case "decimal": return "SqlDbType.Decimal,";
case "float": return "SqlDbType.Float,";
case "image": return "SqlDbType.Image,";
case "money": return "SqlDbType.Money,";
case "nchar": return "SqlDbType.NChar,";
case "ntext": return "SqlDbType.NText,";
case "real": return "SqlDbType.Real,";
case "smalldatetime": return "SqlDbType.SmallDateTime,";
case "smallint": return "SqlDbType.SmallInt,";
case "smallmoney": return "SqlDbType.SmallMoney,";
case "text": return "SqlDbType.Text,";
case "timestamp": return "SqlDbType.Timestamp,";
case "udt": return "SqlDbType.Udt,";
case "uniqueidentifier": return "SqlDbType.UniqueIdentifier,";
case "varbinary": return "SqlDbType.VarBinary,";
case "varchar": return "SqlDbType.VarChar,";
case "variant": return "SqlDbType.Variant,";
case "xml": return "SqlDbType.Xml,";
default : return "";
}
}
public string GetSqlParameterStatement(ColumnSchema column)
{
return column.Name;
}
public string GetCSharpVariableType(ColumnSchema column)
{
if (column.Name.EndsWith("TypeCode")) return column.Name;
switch (column.DataType)
{
case DbType.AnsiString: return "ToString";
case DbType.AnsiStringFixedLength: return "ToString";
case DbType.Binary: return "byte[]";
case DbType.Boolean: return "ToBoolean";
case DbType.Byte: return "ToByte";
case DbType.Currency: return "ToDecimal";
case DbType.Date: return "ToDateTime";
case DbType.DateTime: return "ToDateTime";
case DbType.Decimal: return "ToDecimal";
case DbType.Double: return "ToDouble";
case DbType.Guid: return "Guid";
case DbType.Int16: return "ToInt16";
case DbType.Int32: return "ToInt32";
case DbType.Int64: return "ToInt64";
case DbType.Object: return "object";
case DbType.SByte: return "ToSByte";
case DbType.Single: return "ToDecimal";
case DbType.String: return "ToString";
case DbType.StringFixedLength: return "ToString";
case DbType.Time: return "ToDateTime";
case DbType.UInt16: return "ToUInt16";
case DbType.UInt32: return "ToUInt32";
case DbType.UInt64: return "ToUInt64";
case DbType.VarNumeric: return "ToDecimal";
default:
{
return "__UNKNOWN__" + column.NativeType;
}
}
}
</script>