public IPagedGraphCollection <TAggregate> ExecuteWithPaging(IGraphSession session, IQuery <TAggregate> query, bool enlist)
{
var dataset = Execute(query);
if (!dataset.Any())
{
return(new PagedGraphGraphCollection <TAggregate>());
}
var total = dataset.First().Total;
var page = total == 0 ? 1 : query.Skip / total + 1;
var results = Map(item =>
{
var aggregate = item.Create();
if (session.Uow.Contains(aggregate))
{
aggregate = session.Uow.Get <TAggregate>(ProxyUtils.GetEntityId(aggregate));
}
else if (enlist)
{
aggregate = session.ProxyFactory.Create(aggregate, session);
}
return(aggregate);
}, dataset);
return(new PagedGraphGraphCollection <TAggregate>(session, this, query, results, (int)total, (int)page, enlist));
}
private string EnsureIdIsNotNull(object item)
{
var id = ProxyUtils.GetEntityId(item);
if (string.IsNullOrEmpty(id))
{
throw new PropertyNotSetException($"The entity identified \"{Conventions.IdPropertyName}\" cannot be null or empty", item);
}
return(id);
}
private List <object> ProxyListItems(IList <object> source)
{
var destination = new List <object>();
for (int i = 0; i < source.Count; i++)
{
var type = ProxyUtils.GetTargetType(source[i]);
var existing = _session.Uow.Get(ProxyUtils.GetEntityId(source[i]), type);
var child = existing ?? Create(type, source[i]);
destination.Add(child);
}
return(destination);
}
private object Entity(NodeMetadata metadata, PropertyInfo property, object item, object parent)
{
var propertyMetadata = _metadataFactory.Create(item);
if (propertyMetadata.IsIgnored)
{
return(item);
}
var type = ProxyUtils.GetTargetType(item);
var entity = _session.Uow.Get(ProxyUtils.GetEntityId(item), type) ?? item;
return(Create(type, entity));
}
public IEnumerable <TAggregate> Execute(IGraphSession session, IQuery <TAggregate> query)
{
var dataset = Execute(query);
var results = Map(item =>
{
var aggregate = item.Create();
if (session.Uow.Contains(aggregate))
{
aggregate = session.Uow.Get <TAggregate>(ProxyUtils.GetEntityId(aggregate));
}
return(aggregate);
}, dataset);
return(results);
}
public ICypherQuery Execute(ICypherQuery query)
{
var node = StatementFactory.Parameter(_node);
var id = StatementFactory.IdParameter(_node);
var merge = StatementFactory.Merge(_node, id);
var set = StatementFactory.Set(_node, node);
query = query
.Merge(merge)
.OnCreate()
.Set(set)
.OnMatch()
.Set(set)
.WithParam(node, _factory().ToDictionary())
.WithParam(id, ProxyUtils.GetEntityId(_node));
return(query);
}
