public override Expression VisitInclude(IncludeExpression expression, object argument)
{
Expression source = ApplyEagerLoads(_source, _resourceContext.EagerLoads, null);
foreach (ResourceFieldChainExpression chain in IncludeChainConverter.GetRelationshipChains(expression))
{
source = ProcessRelationshipChain(chain, source);
}
return(source);
}
/// <summary>
/// Inspects the included relationship chains and selects the ones that starts with the specified relationship.
/// </summary>
private IReadOnlyCollection <IReadOnlyCollection <RelationshipAttribute> > GetInclusionChainsStartingWith(RelationshipAttribute relationship)
{
IncludeExpression include = _evaluatedIncludeCache.Get() ?? IncludeExpression.Empty;
IReadOnlyCollection <ResourceFieldChainExpression> chains = IncludeChainConverter.GetRelationshipChains(include);
var inclusionChains = new List <IReadOnlyCollection <RelationshipAttribute> >();
foreach (ResourceFieldChainExpression chain in chains)
{
if (chain.Fields.First().Equals(relationship))
{
inclusionChains.Add(chain.Fields.Cast <RelationshipAttribute>().ToArray());
}
}
return(inclusionChains);
}
public override Expression VisitInclude(IncludeExpression expression, object argument)
{
var source = ApplyEagerLoads(_source, _resourceContext.EagerLoads, null);
foreach (ResourceFieldChainExpression chain in IncludeChainConverter.GetRelationshipChains(expression))
{
string path = null;
foreach (var relationship in chain.Fields.Cast <RelationshipAttribute>())
{
path = path == null ? relationship.RelationshipPath : path + "." + relationship.RelationshipPath;
var resourceContext = _resourceContextProvider.GetResourceContext(relationship.RightType);
source = ApplyEagerLoads(source, resourceContext.EagerLoads, path);
}
source = IncludeExtensionMethodCall(source, path);
}
return(source);
}
