public ActionResult Create(PredicateCreateModel model)
{
if (model == null)
{
return(View(model));
}
if (ModelState.IsValid)
{
PredicateManager predicateManager = new PredicateManager();
Predicate newPredicate = new Predicate();
newPredicate.Name = model.Name;
newPredicate.Description = model.Name;
//get parent
var parent = predicateManager.Get(model.ParentId);
newPredicate.Parent = parent;
predicateManager.Create(newPredicate);
return(RedirectToAction("Index"));
}
else
{
return(View(model));
}
}
public ActionResult Edit(PredicateCreateModel model)
{
if (model == null)
{
return(View(model));
}
PredicateManager predicateManager = new PredicateManager();
var predicate = predicateManager.Get(model.Id);
if (predicate != null)
{
try
{
predicate.Name = model.Name;
predicate.Description = model.Description;
//get parent
var parent = predicateManager.Get(model.ParentId);
predicate.Parent = parent;
predicateManager.Update(predicate);
return(RedirectToAction("Index"));
}
catch (Exception ex)
{
ModelState.AddModelError("", "Ein Fehler ist aufgetreten. " + ex.Message);
}
}
LoadSelectionOfParentPredicates();
ModelState.AddModelError("", "Das Prädikat konnte nicht aktualisiert werden.");
return(View(model));
}
public ActionResult Delete(long id)
{
if (id > 0)
{
InteractionManager interactionManager = new InteractionManager();
SubjectManager subjectManager = new SubjectManager();
PredicateManager predicateManager = new PredicateManager();
//get all interaction with this predicate
var interactions = interactionManager.GetAll().Where(i => i.Predicate.Id.Equals(id));
// delete the interactions
foreach (var interaction in interactions)
{
interactionManager.Delete(interaction);
}
// delete the predictae
var predicate = predicateManager.Get(id);
if (predicate != null)
{
predicateManager.Delete(predicate);
}
}
return(RedirectToAction("Index"));
}
//Finds a collection of entities with the specified query.
public virtual async Task <IEnumerable <TEntity> > Where(Expression <Func <TEntity, bool> > query)
{
string name = query.Parameters[0].Name;
TEntity entity = (TEntity)Activator.CreateInstance(query.Parameters[0].Type);
Expression <Func <TEntity, bool> > newQuery = PredicateManager.Rewrite(query, "e");
return(await client.Cypher
.Match("(e:" + entity.Label + ")")
.Where(newQuery)
.Return(e => e.As <TEntity>())
.ResultsAsync);
}
public ActionResult CheckPredicate(string name, string initName)
{
PredicateManager predicateManager = new PredicateManager();
string defaultstring = "";
if (!String.IsNullOrEmpty(initName))
{
defaultstring = initName;
}
if (predicateManager.GetAll().Any(n => n.Name != null && n.Name.Equals(name) && !n.Name.Equals(initName)))
{
return(Json(false, JsonRequestBehavior.AllowGet));
}
return(Json(true, JsonRequestBehavior.AllowGet));
}
public virtual async Task <IEnumerable <TEntity2> > GetRelated <TEntity2, TRelationship>(Expression <Func <TEntity, bool> > query1, Expression <Func <TEntity2, bool> > query2, TRelationship relationship)
where TEntity2 : Neo4jEntity, new()
where TRelationship : Neo4jRelationship, new()
{
string name1 = query1.Parameters[0].Name;
TEntity entity1 = (TEntity)Activator.CreateInstance(query1.Parameters[0].Type);
string name2 = query2.Parameters[0].Name;
TEntity2 entity2 = (TEntity2)Activator.CreateInstance(query2.Parameters[0].Type);
Expression <Func <TEntity2, bool> > newQuery = PredicateManager.Rewrite(query2, "e");
return(await client.Cypher
.Match("(" + name1 + ":" + entity1.Label + ")-[:" + relationship.Name + "]->(" + name2 + ":" + entity2.Label + ")")
.Where(query1)
.AndWhere(query2)
.Return(e => e.As <TEntity2>())
.ResultsAsync);
}
public ActionResult Edit(long id)
{
LoadSelectionOfParentPredicates();
PredicateManager predicateManager = new PredicateManager();
var predicate = predicateManager.Get(id);
if (predicate != null)
{
PredicateCreateModel model = new PredicateCreateModel();
model.Id = predicate.Id;
model.Name = predicate.Name;
model.Description = predicate.Description;
model.ParentId = predicate.Parent != null ? predicate.Parent.Id : 0;
return(View(model));
}
return(Redirect("Create"));
}
