private void itemControlAddRelationshipRequest(ItemControl sender, ItemType itemType)
{
var bottomControls = sender.Item.Relationships.Select(relationship => _allItemControls[relationship]).ToList();
double mostBottom = bottomControls.Count > 0
? bottomControls.Max(itemControl => itemControl.Item.Top + itemControl.ActualHeight)
: sender.Item.Top + sender.ActualHeight;
var command = new AddRelationshipCommand(_project, sender.Item, itemType, sender.Item.Left + sender.ActualWidth * 2 / 3, mostBottom + 15);
_project.PerformCommand(command);
var relationshipControl = _allItemControls[command.NewRelationship];
displayRelationship(sender, relationshipControl);
}
///-------------------------------------------------------------------------------------------------
/// <summary>
/// An IHyperstore extension method that creates a relationship.
/// </summary>
/// <exception cref="SessionRequiredException">
/// Thrown when a Session Required error condition occurs.
/// </exception>
/// <param name="store">
/// The store to act on.
/// </param>
/// <param name="schema">
/// The schema.
/// </param>
/// <param name="start">
/// The start.
/// </param>
/// <param name="end">
/// The end.
/// </param>
/// <param name="id">
/// (Optional) the identifier.
/// </param>
/// <returns>
/// The new relationship.
/// </returns>
///-------------------------------------------------------------------------------------------------
public static IModelRelationship CreateRelationship(this IHyperstore store, ISchemaRelationship schema, IModelElement start, IModelElement end, Identity id = null)
{
Contract.Requires(store != null, "store");
Contract.Requires(schema != null, "schema");
Contract.Requires(start != null, "start");
Contract.Requires(end != null, "end");
if (Session.Current == null)
{
throw new SessionRequiredException();
}
var domain = start.DomainModel;
var cmd = new AddRelationshipCommand(schema, start, end, id);
Session.Current.Execute(cmd);
return(cmd.Relationship);
}
public override bool Equals(object o)
{
if (this == o)
{
return(true);
}
if (o == null || this.GetType() != o.GetType())
{
return(false);
}
if (!base.Equals(o))
{
return(false);
}
AddRelationshipCommand that = ( AddRelationshipCommand )o;
return(StartNodeConflict == that.StartNodeConflict && EndNodeConflict == that.EndNodeConflict);
}
///-------------------------------------------------------------------------------------------------
/// <summary>
/// An IDomainModel extension method that creates a relationship.
/// </summary>
/// <exception cref="SessionRequiredException">
/// Thrown when a Session Required error condition occurs.
/// </exception>
/// <param name="domain">
/// the domain model.
/// </param>
/// <param name="schema">
/// The schema.
/// </param>
/// <param name="startId">
/// The start identifier.
/// </param>
/// <param name="endId">
/// The end identifier.
/// </param>
/// <param name="id">
/// (Optional) the identifier.
/// </param>
/// <returns>
/// The new relationship.
/// </returns>
///-------------------------------------------------------------------------------------------------
public static IModelRelationship CreateRelationship(this IDomainModel domain, ISchemaRelationship schema, Identity startId, Identity endId, Identity id = null)
{
Contract.Requires(domain != null, "domain");
Contract.Requires(schema != null, "schema");
Contract.Requires(startId != null, "startId");
Contract.Requires(endId != null, "endId");
if (Session.Current == null)
{
throw new SessionRequiredException();
}
var start = domain.GetElement(startId);
if (start == null)
{
throw new InvalidElementException(startId);
}
var cmd = new AddRelationshipCommand(schema, start, endId, id);
Session.Current.Execute(cmd);
return(cmd.Relationship);
}