protected override void OnDefineRules()
{
// Example of simple Fluent rules
Property <string>(vm => vm.Code).Is.Required().Otherwise("Code is required.");
Property <string>(vm => vm.Code).Is.Valid(ViewModelInstance.CodeIsUnique()).Otherwise("Code already exist.");
Property <string>(vm => vm.Code).Has.MaxLength(3).Otherwise("Code length must not eceed 3 characters.");
// NOTE : Above rules can be defined in one sentence like below, if you want them to share the same error message
//Property(vm => vm.Code).Is.Required().And.Has.MaxLength(3).Otherwise("Code is required and its length must not eceed 3 characters.");
Property <int>(vm => vm.Age).Is.BetweenValues(1, 50).Otherwise("Age must be between 1 and 50.");
Property <Country>(vm => vm.Country).Is.EqualTo(Database.GetCountry(4)).Otherwise("Country other than Madagascar is not allowed.");
// Example of more complex Fluent rules
Property <DateTime>(vm => vm.DateOfBirth)
.Is.GreaterThan(new DateTime(1990, 01, 01))
.Otherwise("Date of Birth must be after 1990");
Property <DateTime>(vm => vm.DateOfBirth)
.Is.LessThanOrEqualTo(vm => vm.DateOfHire)
.Otherwise("Date of Birth must preced the Date of Hire");
Property <DateTime>(vm => vm.DateOfHire)
.Is.BetweenPoperties(vm => vm.DateOfBirth, vm => vm.DateOfDeath)
.Otherwise("Date of Hire must be between Date of Birth and Date of Death.");
}
private void BindToModelInstance(EAV.Model.IModelContainer container, EAV.Model.IModelSubject subject, EAV.Model.IModelInstance parentInstance, EAV.Model.IModelInstance instance, ViewModelInstance viewParentInstance, ViewModelInstance viewInstance)
{
if (instance == null && viewInstance == null)
{
return;
}
if (instance != null && viewInstance == null)
{
if (instance.ObjectState == ObjectState.New)
{
if (parentInstance != null)
{
parentInstance.ChildInstances.Remove(instance as IModelChildInstance);
}
else
{
subject.Instances.Remove(instance as IModelRootInstance);
}
}
else
{
instance.MarkDeleted();
}
return;
}
else if (instance == null && viewInstance != null)
{
if (parentInstance != null)
{
instance = new ModelChildInstance()
{
Container = container, InstanceID = viewInstance.InstanceID, ParentInstance = parentInstance
};
}
else
{
instance = new ModelRootInstance()
{
Container = container, InstanceID = viewInstance.InstanceID, Subject = subject
};
}
}
foreach (ModelAttribute attribute in container.Attributes)
{
BindToModelValue(attribute, instance, instance.Values.SingleOrDefault(it => it.AttributeID == attribute.AttributeID), viewInstance.Values.SingleOrDefault(it => it.AttributeID == attribute.AttributeID));
}
foreach (IModelContainer childContainer in container.ChildContainers)
{
var dataInstanceSubset = childContainer.Instances.Where(it => it.ParentInstanceID == instance.InstanceID);
var viewInstanceSubset = viewInstance.ChildContainers.Where(it => it.ContainerID == childContainer.ContainerID).SelectMany(it => it.Instances).Where(it => it.ParentInstanceID == viewInstance.InstanceID);
var dataInstances = dataInstanceSubset.GroupJoin(viewInstanceSubset, left => left.InstanceID, right => right.InstanceID, (left, right) => new { ModelInstance = left, ViewInstance = right.FirstOrDefault() }).ToArray();
var viewInstances = viewInstanceSubset.GroupJoin(dataInstanceSubset, left => left.InstanceID, right => right.InstanceID, (left, right) => new { ModelInstance = right.FirstOrDefault(), ViewInstance = left }).ToArray();
foreach (var item in dataInstances.Union(viewInstances))
{
BindToModelInstance(childContainer, subject, instance, item.ModelInstance, viewInstance, item.ViewInstance);
}
}
}
