public Page <T> FindAll <T>(PageRequest r, Criteria criteria = null, RelationshipOption rOption = null)
{
var meta = _context.GetMetaData(typeof(T));
SetDefaultSortIfNotExist(r, meta);
var query = CypherTranslator.FindAll(meta, r, criteria);
using var session = NewSession();
return(session.ReadTransaction(tx =>
{
var records = tx.Run(query.Items).ToList();
var total = tx.Run(query.Count).Single()[0].As <long>();
var loadRelationship = ShouldLoadRelationship(rOption);
var items = EntityTransform.NewInstanceList(records, meta, iNode =>
{
var entity = EntityTransform.NewInstance(iNode, meta);
if (!loadRelationship)
{
return entity;
}
FetchRelationshipByNodeId(meta, entity, tx, rOption.Depth, new Dictionary <long, object>());
return entity;
}).As <IList <T> >();
return new Page <T>(r)
{
Items = items,
TotalItems = total
};
}));
}
public T FindById <T>(long id, RelationshipOption option = null)
{
var meta = _context.GetMetaData(typeof(T));
using var session = NewSession();
return(session.ReadTransaction(tx =>
{
var nodeRecord = tx.Run(CypherTranslator.FindNodeById(meta, id)).SingleOrDefault();
if (nodeRecord == null)
{
return default;
}
var entity = EntityTransform.NewInstance(nodeRecord, meta);
if (ShouldLoadRelationship(option))
{
FetchRelationshipByNodeId(meta, entity, tx, option.Depth, new Dictionary <long, object>());
}
return entity.As <T>();
}));
}
private static bool ShouldLoadRelationship(RelationshipOption o)
{
return(o != null && o.Load);
}
