public static DataContracts.UpdateResult UpdateMany <T>(string collectionName, FilterDefinition <T> filter, UpdateDefinition <T> update, UpdateOptions updateOptions, string schemaId = "", Notification notification = null)
{
var request = new UpdateMany
{
CollectionName = collectionName,
OutputMode = JsonOutputMode.Strict,
Filter = filter.ToJson(),
Notification = notification,
Update = update.ToBsonDocument().ToJson(),
UpdateOptions = updateOptions,
SchemaId = schemaId,
CultureCode = CultureInfo.CurrentCulture.Name
};
var response = Send <UpdateOneResponse>("entities/" + collectionName + "/bulk", request, "PUT");
return(response.Result);
}
public long Update <T>(Expression <Func <T, bool> > criteria, Expression <Func <T, T> > update) where T : class
{
UpdateDefinition <T> updateDefinition = null;
var expression = (MemberInitExpression)update.Body;
foreach (var binding in expression.Bindings)
{
var name = binding.Member.Name;
object value;
var memberExpression = ((MemberAssignment)binding).Expression;
var constantExpression = memberExpression as ConstantExpression;
if (constantExpression != null)
{
value = constantExpression.Value;
}
else
{
var lambda = Expression.Lambda(memberExpression, null);
value = lambda.Compile().DynamicInvoke();
}
if (updateDefinition == null)
{
updateDefinition = Builders <T> .Update.Set(name, BsonValue.Create(value));
}
else
{
updateDefinition.Set(name, BsonValue.Create(value));
}
}
if (updateDefinition == null)
{
return(0L);
}
var result = GetCollection <T>().UpdateMany(new ExpressionFilterDefinition <T>(criteria), new BsonDocumentUpdateDefinition <T>(updateDefinition.ToBsonDocument()), new UpdateOptions {
IsUpsert = false
});
return(result.IsAcknowledged && result.IsModifiedCountAvailable ? result.ModifiedCount : 0);
}
