public static IEnumerable <IQueryTable> GetTableChain(this IQueryTable table, IQueryTable context, GetPathErrorHandling errorHandling = GetPathErrorHandling.ThrowException)
{
return(table.GetPath(context, errorHandling));
}
public static IEnumerable <IQueryTable> GetPath(this IQueryTable queryTable, IQueryTable mappingContext, GetPathErrorHandling errorHandling = GetPathErrorHandling.ThrowException)
{
var result = GetPathRec(queryTable, mappingContext);
// if no path was found, the context table might be after the
// query table in the JOIN hirearchy. In this case it is ok
// to return a path without the context table
if (result == null)
{
var rs = GetPathRec(mappingContext, queryTable)
?.TakeUntilIncludeLast(x => x == queryTable)
.ToArray();
result = rs != null && rs[rs.Length - 1] == queryTable
? rs
: null;
}
if (result == null && errorHandling == GetPathErrorHandling.ThrowException)
{
throw new InvalidOperationException($"You cannot use {queryTable.Alias} in the context of {mappingContext.Alias}.");
}
return(result);
}
