private static PropertyInfo GetPrincipalNavigationProperty(OeEdmModelMetadataProvider metadataProvider,
EntityTypeInfo principalInfo, EntityTypeInfo dependentInfo, PropertyInfo dependentNavigationProperty)
{
PropertyInfo inverseProperty = metadataProvider.GetInverseProperty(dependentNavigationProperty);
if (inverseProperty != null)
{
return(inverseProperty);
}
foreach (PropertyInfo clrProperty in metadataProvider.GetProperties(principalInfo.ClrType))
{
if (clrProperty.PropertyType == dependentInfo.ClrType ||
Parsers.OeExpressionHelper.GetCollectionItemTypeOrNull(clrProperty.PropertyType) == dependentInfo.ClrType)
{
inverseProperty = metadataProvider.GetInverseProperty(clrProperty);
if (inverseProperty == null || inverseProperty == dependentNavigationProperty)
{
return(clrProperty);
}
}
}
return(null);
}
private static PropertyInfo GetPartnerProperty(OeEdmModelMetadataProvider metadataProvider, Type itemType, Type itemType2)
{
PropertyInfo partnerProperty = null;
PropertyInfo otherSideProperty = null;
foreach (PropertyInfo propertyInfo in itemType2.GetProperties())
{
if (Parsers.OeExpressionHelper.IsPrimitiveType(propertyInfo.PropertyType))
{
continue;
}
if (propertyInfo.PropertyType == itemType)
{
if (partnerProperty == null)
{
partnerProperty = propertyInfo;
}
else
{
if (otherSideProperty != null)
{
return(null);
}
if (metadataProvider.GetInverseProperty(partnerProperty) == null)
{
otherSideProperty = propertyInfo;
}
else if (metadataProvider.GetInverseProperty(propertyInfo) == null)
{
otherSideProperty = partnerProperty;
partnerProperty = propertyInfo;
}
else
{
return(null);
}
}
}
else
{
if (Parsers.OeExpressionHelper.GetCollectionItemType(propertyInfo.PropertyType) == null)
{
if (otherSideProperty != null)
{
return(null);
}
otherSideProperty = propertyInfo;
}
else
{
return(null);
}
}
}
return(partnerProperty);
}
