public static FbValueGenerationStrategy GetValueGenerationStrategy(this IMutableProperty property)
{
var annotation = property[FbAnnotationNames.ValueGenerationStrategy];
if (annotation != null)
{
return((FbValueGenerationStrategy)annotation);
}
if (property.ValueGenerated != ValueGenerated.OnAdd ||
property.GetDefaultValue() != null ||
property.GetDefaultValueSql() != null ||
property.GetComputedColumnSql() != null)
{
return(FbValueGenerationStrategy.None);
}
var modelStrategy = property.DeclaringEntityType.Model.GetValueGenerationStrategy();
if (modelStrategy == FbValueGenerationStrategy.SequenceTrigger && IsCompatibleSequenceTrigger(property))
{
return(FbValueGenerationStrategy.SequenceTrigger);
}
if (modelStrategy == FbValueGenerationStrategy.IdentityColumn && IsCompatibleIdentityColumn(property))
{
return(FbValueGenerationStrategy.IdentityColumn);
}
return(FbValueGenerationStrategy.None);
}