public static Type DetermineDbContextType(IChain chain, IContainer container)
{
var contextTypes = chain.ServiceDependencies(container).Where(x => x.CanBeCastTo <DbContext>()).ToArray();
if (contextTypes.Length == 0)
{
throw new InvalidOperationException($"Cannot determine the {nameof(DbContext)} type for {chain.Description}");
}
if (contextTypes.Length > 1)
{
throw new InvalidOperationException(
$"Cannot determine the {nameof(DbContext)} type for {chain.Description}, multiple {nameof(DbContext)} types detected: {contextTypes.Select(x => x.Name).Join(", ")}");
}
return(contextTypes.Single());
}
