public BsonValue Execute(DbEngine engine, StringScanner s)
{
var col = this.ReadCollection(engine, s);
var query = this.ReadQuery(s);
return engine.Delete(col, query);
}
public BsonValue Execute(DbEngine engine, StringScanner s)
{
var col = this.ReadCollection(engine, s);
var query = this.ReadQuery(s);
return(engine.Delete(col, query));
}
public void Delete_Node_Should_Remove_Its_Relations()
{
const string RelationLabel = "Left";
const string FromNodeLabel = "Primitive";
const string ToNodeLabel = "Primitive1";
var engine = new DbEngine();
var nodeFrom = engine.AddNode(FromNodeLabel);
var nodeTo = engine.AddNode(ToNodeLabel);
var relation = engine.AddRelation(nodeFrom, nodeTo, RelationLabel);
engine.SaveChanges();
Thread.Sleep(ConsistencyDelayMs);
engine.Delete(nodeFrom);
engine.SaveChanges();
Thread.Sleep(ConsistencyDelayMs);
var query = new Query(engine);
var nodes = query.Match(new NodeDescription(ToNodeLabel));
query.Execute();
var node = nodes.Nodes.First();
node.PullInRelations();
Assert.AreEqual(node.InRelations.Count, 0);
}
public void Delete_Node()
{
const string Label = "Primitive";
var engine = new DbEngine();
var node = engine.AddNode(Label);
engine.SaveChanges();
Thread.Sleep(ConsistencyDelayMs);
engine.Delete(node);
engine.SaveChanges();
Thread.Sleep(ConsistencyDelayMs);
var query = new Query(engine);
var foundNodes = query.Match(new NodeDescription(Label));
query.Execute();
Assert.AreEqual(foundNodes.Nodes.Count, 0);
}
public void Delete_Relation()
{
const string RelationLabel = "Left";
const string NodeFromLabel = "Primitive";
const string NodeToLabel = "Primitive1";
var engine = new DbEngine();
var nodeFrom = engine.AddNode(NodeFromLabel);
var nodeTo = engine.AddNode(NodeToLabel);
var relation = engine.AddRelation(nodeFrom, nodeTo, RelationLabel);
engine.SaveChanges();
Thread.Sleep(ConsistencyDelayMs);
engine.Delete(relation);
engine.SaveChanges();
Thread.Sleep(ConsistencyDelayMs);
var query = new Query(engine);
var nodes = query.Match(new NodeDescription(NodeFromLabel));
query.Execute();
var node = nodes.Nodes.First();
node.PullOutRelations();
var query1 = new Query(engine);
var nodes1 = query1.Match(new NodeDescription(NodeToLabel));
query1.Execute();
var node1 = nodes1.Nodes.First();
node1.PullInRelations();
Assert.AreEqual(node.OutRelations.Count, 0);
Assert.AreEqual(node1.InRelations.Count, 0);
}
public void Delete()
{
Db.Delete(this);
}