CodeSmith6.5 Update

<%@ CodeTemplate Language="C#" TargetLanguage="C#" Debug="False" Description="Template description here." %>
<%@ Property Name="SourceTable" Type="SchemaExplorer.TableSchema"  Category="Context"  Optional="True" Description="the table name"   %>
<%@ Assembly Name="SchemaExplorer" %>
<%@ Import Namespace="SchemaExplorer" %>
<%@ Assembly Name="CodeSmith.BaseTemplates" %>
<%@ Import Namespace="CodeSmith.BaseTemplates" %>
<%@ Assembly Name="CodeSmith.CustomProperties" %>
<%@ Import Namespace="CodeSmith.CustomProperties" %>
<%@ Property Name="ConnectionTypeName" Type="ConnectionType" Category="数据源连接类型" %>

<script runat="template">
public enum ConnectionType
{
    SqlHelper,
    MySqlHelper,
    OleDbHelper
}
public string GetParameterTypeName()
{
    switch(ConnectionTypeName)
    {
        case ConnectionType.SqlHelper:return "SqlParameter";
        case ConnectionType.MySqlHelper:return "MySqlParameter";
        case ConnectionType.OleDbHelper:return "OleDbParameter";
        default:return "SqlParameter";
    }
}
</script>
public bool Update(Model.<%=this.SourceTable.Name.Substring(0,1).ToUpper() %><%=this.SourceTable.Name.Substring(1) %>Model model)
{
    StringBuilder commandText=new StringBuilder();
    <%  string cols=string.Empty;
        foreach(ColumnSchema col in this.SourceTable.Columns)
        {
            cols+=col.Name+",";
        }
        cols=cols.Remove(cols.Length-1);
        string[] strParamNames=cols.Split(',');
    %>
    commandText.Append("update <%=this.SourceTable.Name %> set ");
    <%
    for(int i=0;i<strParamNames.Length-1;i++)
    {%>
    commandText.Append("<%=strParamNames[i] %>=@<%=strParamNames[i] %>,");
    <%}%>
    commandText.Append("<%=strParamNames[strParamNames.Length-1] %>=@<%=strParamNames[strParamNames.Length-1] %>");
    commandText.Append(" where <%=strParamNames[0] %>=@<%=strParamNames[0] %>");
    <%=GetParameterTypeName() %>[] commandParameters = {
            <%
            for(int i=0;i<strParamNames.Length-1;i++)
            {%>
            new <%=GetParameterTypeName() %>("@<%=strParamNames[i] %>", model.<%=strParamNames[i].Substring(0,1).ToUpper() %><%=strParamNames[i].Substring(1) %>),
            <%}%>
            new <%=GetParameterTypeName() %>("@<%=strParamNames[strParamNames.Length-1] %>", model.<%=strParamNames[strParamNames.Length-1].Substring(0,1).ToUpper() %><%=strParamNames[strParamNames.Length-1].Substring(1) %>)
            };

    int rows=DBUtility.<%=ConnectionTypeName %>.ExecuteNonQuery(commandText.ToString(),commandParameters);
    if (rows > 0)
    {
        return true;
    }
    else
    {
        return false;
    }
}
原文地址:https://www.cnblogs.com/xinzheng/p/4488177.html