/// <summary>
/// Updates a generic MongoEntity which is in Modified state
/// </summary>
public void GenericUpdate(MongoContext ctx, MongoEntity ent, MongoEntity origEnt)
{
var updatesChanges = new List <UpdateDefinition <T> >();
var updatesCollAdd = new List <UpdateDefinition <T> >();
var updatesCollDel = new List <UpdateDefinition <T> >();
var diffs = origEnt.Compare(ent).ToList();
foreach (var diff in diffs)
{
if (diff.NewPropertyValue == null && diff.OldPropertyValue == null)
{
foreach (var x in diff.CollectionElementsToAdd)
{
updatesCollAdd.Add(Builders <T> .Update.Push(diff.PropertyFullPath, x));
}
foreach (var x in diff.CollectionElementsToRemove)
{
updatesCollDel.Add(Builders <T> .Update.Pull(diff.PropertyFullPath, x));
}
}
else
{
updatesChanges.Add(Builders <T> .Update.Set(diff.PropertyFullPath, diff.NewPropertyValue));
}
}
// do field updates
if (updatesChanges.Count > 0)
{
if (ctx.Debug)
{
Debug.WriteLine($"Record Updates {updatesChanges.Count}");
foreach (var x in updatesChanges)
{
Debug.WriteLine($"\t{x.ToString()}");
}
}
var filter = Builders <T> .Filter.Eq((t) => t.Id, ent.Id);
var update = Builders <T> .Update.Combine(updatesChanges);
Collection.UpdateMany(filter, update);
}
// do collection add
if (updatesCollAdd.Count > 0)
{
if (ctx.Debug)
{
Debug.WriteLine($"Coll Add {updatesCollAdd.Count}");
}
foreach (var x in updatesCollAdd)
{
if (ctx.Debug)
{
Debug.WriteLine($"\t{x.ToString()}");
}
var filter = Builders <T> .Filter.Eq((y) => y.Id, ent.Id);
Collection.UpdateOne(filter, x);
}
}
// do collection del
if (updatesCollDel.Count > 0)
{
if (ctx.Debug)
{
Debug.WriteLine($"Coll Del {updatesCollDel.Count}");
}
foreach (var x in updatesCollDel)
{
if (ctx.Debug)
{
Debug.WriteLine($"\t{x.ToString()}");
}
var filter = Builders <T> .Filter.Eq((y) => y.Id, ent.Id);
Collection.UpdateOne(filter, x);
}
}
}
