private IDictionary <string, Relationship> GenerateRelationships(object instance, IResourceMapping mapping)
{
var relationNames = mapping.GetRelationNames().ToList();
if (!relationNames.Any())
{
return(null);
}
var relationships = new Dictionary <string, Relationship>();
foreach (var relationName in relationNames)
{
var relationTypeName = _configuration.ResourceConfigurations[mapping.GetResourceTypeOfRelation(relationName)]?.TypeName;
if (relationTypeName == null)
{
throw new JsonApiException(CausedBy.Server, $"Resource type for relation {relationName} is not configured");
}
var value = mapping.GetRelationValue(instance, relationName);
if (value == null)
{
return(null);
}
if (value is Guid)
{
relationships.Add(relationName, new Relationship(relationTypeName, (Guid)value));
}
else if (value is IEnumerable <Guid> )
{
relationships.Add(relationName, new Relationship(relationTypeName, (IEnumerable <Guid>)value));
}
}
return(relationships);
}
