/// <summary>
/// Evaluates a collection of entities, and takes care of the whole CRUD operation.
/// Meaning, it checks existance in database, and if not found, its created in database.
/// If it exists in database with different info, it updates the database.
/// In other words, "syncs" the received collection of entities to the database.
/// /// </summary>
/// <param name="Entities">A list of Entities to be added / updated to the database ///</param>
public void PushToDbset(List <InstanceContent> Entities)
{
//Extract Contained Classes, and push them to the database
List <Attribute> Attributes_ToPush = Entities.Select(c => c.Attribute).ToList();
List <Instance> Instances_ToPush = Entities.Select(c => c.Instance).ToList();
List <IOTag> IOTags_ToPush = Entities.Select(c => c.IOTag).ToList();
List <PLCTag> PLCTags_ToPush = Entities.Select(c => c.PLCTag).ToList();
Attributes.PushToDbset(Attributes_ToPush);
Instances.PushToDbset(Instances_ToPush);
IOTags.PushToDbset(IOTags_ToPush);
PLCTags.PushToDbset(PLCTags_ToPush);
context.SaveChanges();
//Update the contained classes in the entities, so that they are not null or incomplete
List <InstanceContent> EntsToPush = GetListSyncFromDB(Entities);
//Find contents that as NOT in the database, and insert them
List <InstanceContent> Entities_NOTinDb = NOTInDatabase(EntsToPush);
if (Entities_NOTinDb.Count
> 0)
{
InsertList(Entities_NOTinDb);
}
//Find contents that are in the database, and update them
List <InstanceContent> Entities_inDb = InDatabase(EntsToPush);
if (Entities_inDb.Count > 0)
{
UpdateList(Entities_inDb);
}
}
public List <InstanceContent> GetListSyncFromDB(List <InstanceContent> _Entities)
{
List <InstanceContent> UpdatedList = (from Cont in _Entities
select new InstanceContent()
{
InstanceContentID = GetID(Cont.Instance.Name, Cont.Attribute.Name),
Instance = Instances.GetSyncFromDB(Cont.Instance),
InstanceID = Instances.GetID(Cont.Instance.Name),
Attribute = Attributes.GetSyncFromDB(Cont.Attribute),
AttributeID = Attributes.GetID(Cont.Attribute.Name),
PLCTag = Cont.PLCTag != null ? PLCTags.GetSyncFromDB(Cont.PLCTag) : null,
PLCTagID = Cont.PLCTag != null ? PLCTags.GetID(Cont.PLCTag.Name) : Cont.PLCTagID,
IOTag = IOTags.GetSyncFromDB(Cont.IOTag),
IOTagID = IOTags.GetID(Cont.IOTag.Name),
AssetName = Cont.AssetName
}).ToList();
return(UpdatedList);
}
