Usage of typeMappingSource in SqlServerPropertyExtensions.GetValueGenerationStrategy

EF6.0

At current time I adding in my provider the support of ValueGenerationStrategy and trying to understand the implementation in exists providers :)

**SqlServerPropertyExtensions code**

https://github.com/dotnet/efcore/blob/b0eaace609c1cbc46e4c32ee732d67195fffb88a/src/EFCore.SqlServer/Extensions/SqlServerPropertyExtensions.cs#L410-L428

As I understood, parameter typeMappingSource contains the hint for work.

This parameter was added in https://github.com/dotnet/efcore/pull/23929

**Why** typeMappingSource does not passed in recursive call (line 424 )?

``` c#
return sharedTableRootProperty.GetValueGenerationStrategy(storeObject) 
```

I think, my question is addressed to @AndriySvyryd.

Thanks for answers.

	internal static SqlServerValueGenerationStrategy GetValueGenerationStrategy(
	this IReadOnlyProperty property,
	in StoreObjectIdentifier storeObject,
	ITypeMappingSource? typeMappingSource)
	{
	var annotation = property.FindAnnotation(SqlServerAnnotationNames.ValueGenerationStrategy);
	if (annotation != null)
	{
	return (SqlServerValueGenerationStrategy?)annotation.Value ?? SqlServerValueGenerationStrategy.None;
	}

	var sharedTableRootProperty = property.FindSharedStoreObjectRootProperty(storeObject);
	if (sharedTableRootProperty != null)
	{
	return sharedTableRootProperty.GetValueGenerationStrategy(storeObject)
	== SqlServerValueGenerationStrategy.IdentityColumn
	&& !property.GetContainingForeignKeys().Any(fk => !fk.IsBaseLinking())
	? SqlServerValueGenerationStrategy.IdentityColumn
	: SqlServerValueGenerationStrategy.None;

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Usage of typeMappingSource in SqlServerPropertyExtensions.GetValueGenerationStrategy #26674

dmitry-lipetsk
openedon Nov 14, 2021

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Usage of typeMappingSource in SqlServerPropertyExtensions.GetValueGenerationStrategy #26674

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dmitry-lipetskopenedon Nov 14, 2021

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