private void BindToModelValue(EAV.Model.IModelAttribute attribute, EAV.Model.IModelInstance instance, EAV.Model.IModelValue value, ViewModelAttributeValue viewValue)
{
if (value == null && viewValue == null)
{
return;
}
if (value != null && viewValue == null)
{
if (value.ObjectState == ObjectState.New)
{
instance.Values.Remove(value);
}
else
{
value.MarkDeleted();
}
return;
}
else if (value == null && viewValue != null)
{
value = new ModelValue()
{
Attribute = attribute, Instance = instance, Unit = attribute.VariableUnits.HasValue ? new ModelUnit()
{
UnitID = NextUnitID
} : null
};
}
if (value.RawValue != viewValue.Value)
{
value.RawValue = viewValue.Value;
}
if (attribute.VariableUnits.HasValue)
{
if (attribute.VariableUnits.Value)
{
if (value.Unit.ObjectState == ObjectState.New && !String.Equals(value.Unit.DisplayText, viewValue.UnitText, StringComparison.InvariantCulture))
{
value.Unit.DisplayText = viewValue.UnitText;
}
}
else
{
if (value.UnitID != viewValue.UnitID)
{
value.Unit = attribute.Units.SingleOrDefault(it => it.UnitID == viewValue.UnitID);
}
}
}
}
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);
}
}
}