EntityFramework4的POCO模板生成FunctionImport返回空的服务端调用代码

if(edmFunction.ReturnParameter==null)

<#

//*********************************************************

//

//Copyright(c)Microsoft.Allrightsreserved.

//ThiscodeislicensedundertheMicrosoftPublicLicense.

//THISCODEISPROVIDED*ASIS*WITHOUTWARRANTYOF

//ANYKIND,EITHEREXPRESSORIMPLIED,INCLUDINGANY

//IMPLIEDWARRANTIESOFFITNESSFORAPARTICULAR

//PURPOSE,MERCHANTABILITY,ORNON-INFRINGEMENT.

//

//*********************************************************

#>

<#@templatelanguage="C#"debug="false"hostspecific="true"#>

<#@includefile="EF.Utility.CS.ttinclude"#><#@

outputextension=".cs"#><#

CodeGenerationToolscode=newCodeGenerationTools(this);

MetadataToolsef=newMetadataTools(this);

MetadataLoaderloader=newMetadataLoader(this);

CodeRegionregion=newCodeRegion(this);

stringinputFile=@"model.edmx";

EdmItemCollectionItemCollection=loader.CreateEdmItemCollection(inputFile);

stringnamespaceName=code.VsNamespaceSuggestion();

EntityContainercontainer=ItemCollection.GetItems<EntityContainer>().FirstOrDefault();

if(container==null)

{

return"//NoEntityContainerexistsinthemodel,sonocodewasgenerated";

}

#>

//------------------------------------------------------------------------------

//<auto-generated>

//Thiscodewasgeneratedfromatemplate.

//

//Changestothisfilemaycauseincorrectbehaviorandwillbelostif

//thecodeisregenerated.

//</auto-generated>

//------------------------------------------------------------------------------

usingSystem;

usingSystem.Data.Objects;

usingSystem.Data.EntityClient;

<#

if(!String.IsNullOrEmpty(namespaceName))

{

#>

namespace<#=code.EscapeNamespace(namespaceName)#>

{

<#

PushIndent(CodeRegion.GetIndent(1));

}

#>

<#=Accessibility.ForType(container)#>partialclass<#=code.Escape(container)#>:ObjectContext

{

publicconststringConnectionString="name=<#=container.Name#>";

publicconststringContainerName="<#=container.Name#>";

#regionConstructors

public<#=code.Escape(container)#>()

:base(ConnectionString,ContainerName)

{

<#

WriteLazyLoadingEnabled(container);

#>

}

public<#=code.Escape(container)#>(stringconnectionString)

:base(connectionString,ContainerName)

{

<#

WriteLazyLoadingEnabled(container);

#>

}

public<#=code.Escape(container)#>(EntityConnectionconnection)

:base(connection,ContainerName)

{

<#

WriteLazyLoadingEnabled(container);

#>

}

#endregion

<#

region.Begin("ObjectSetProperties",2);

foreach(EntitySetentitySetincontainer.BaseEntitySets.OfType<EntitySet>())

{

#>

<#=Accessibility.ForReadOnlyProperty(entitySet)#>ObjectSet<<#=code.Escape(entitySet.ElementType)#>><#=code.Escape(entitySet)#>

{

get{return<#=code.FieldName(entitySet)#>??(<#=code.FieldName(entitySet)#>=CreateObjectSet<<#=code.Escape(entitySet.ElementType)#>>("<#=entitySet.Name#>"));}

}

privateObjectSet<<#=code.Escape(entitySet.ElementType)#>><#=code.FieldName(entitySet)#>;

<#

}

region.End();

region.Begin("FunctionImports");

foreach(EdmFunctionedmFunctionincontainer.FunctionImports)

{

varparameters=FunctionImportParameter.Create(edmFunction.Parameters,code,ef);

stringparamList=String.Join(",",parameters.Select(p=>p.FunctionParameterType+""+p.FunctionParameterName).ToArray());

stringreturnTypeElement="int";

if(edmFunction.ReturnParameter==null)

{

#>

<#=Accessibility.ForMethod(edmFunction)#>void<#=code.Escape(edmFunction)#>(<#=paramList#>)

{

<#

}

else

{

returnTypeElement=code.Escape(ef.GetElementType(edmFunction.ReturnParameter.TypeUsage));

#>

<#=Accessibility.ForMethod(edmFunction)#>ObjectResult<<#=returnTypeElement#>><#=code.Escape(edmFunction)#>(<#=paramList#>)

{

<#

}

foreach(varparameterinparameters)

{

if(!parameter.NeedsLocalVariable)

{

continue;

}

#>

ObjectParameter<#=parameter.LocalVariableName#>;

if(<#=parameter.IsNullableOfT?parameter.FunctionParameterName+".HasValue":parameter.FunctionParameterName+"!=null"#>)

{

<#=parameter.LocalVariableName#>=newObjectParameter("<#=parameter.EsqlParameterName#>",<#=parameter.FunctionParameterName#>);

}

else

{

<#=parameter.LocalVariableName#>=newObjectParameter("<#=parameter.EsqlParameterName#>",typeof(<#=parameter.RawClrTypeName#>));

}

<#

}

if(edmFunction.ReturnParameter==null)

{

#>

base.ExecuteFunction("<#=edmFunction.Name#>"<#=code.StringBefore(",",String.Join(",",parameters.Select(p=>p.ExecuteParameterName).ToArray()))#>);

}

<#

}

else

{

#>

returnbase.ExecuteFunction<<#=returnTypeElement#>>("<#=edmFunction.Name#>"<#=code.StringBefore(",",String.Join(",",parameters.Select(p=>p.ExecuteParameterName).ToArray()))#>);

}

<#

}

}

region.End();

#>

}

<#

if(!String.IsNullOrEmpty(namespaceName))

{

PopIndent();

#>

}

<#

}

#>

<#+

privatevoidWriteLazyLoadingEnabled(EntityContainercontainer)

{

stringlazyLoadingAttributeValue=null;

stringlazyLoadingAttributeName=MetadataConstants.EDM_ANNOTATION_09_02+":LazyLoadingEnabled";

if(MetadataTools.TryGetStringMetadataPropertySetting(container,lazyLoadingAttributeName,outlazyLoadingAttributeValue))

{

boolisLazyLoading=false;

if(bool.TryParse(lazyLoadingAttributeValue,outisLazyLoading))

{

#>

this.ContextOptions.LazyLoadingEnabled=<#=isLazyLoading.ToString().ToLowerInvariant()#>;

<#+

}

}

}

#>

publicpartialclassEntities:ObjectContext

{

publicvoidChangeForumID(stringthread,Nullable<int>forum)

{

ObjectParameterthreadParameter;

if(thread!=null)

{

threadParameter=newObjectParameter("Thread",thread);

}

else

{

threadParameter=newObjectParameter("Thread",typeof(string));

}

ObjectParameterforumParameter;

if(forum.HasValue)

{

forumParameter=newObjectParameter("Forum",forum);

}

else

{

forumParameter=newObjectParameter("Forum",typeof(int));

}

base.ExecuteFunction("ChangeForumID",threadParameter,forumParameter);

}