private static void DoPush(BsonDocument doc, string name, BsonValue value)
{
var arrayNode = BsonHelpers.GetDocumentValue(name, doc);
var isEach = value.IsBsonDocument && value.AsBsonDocument.First().Name == "$each";
BsonArray arrayValues;
if (isEach)
{
arrayValues = value.AsBsonDocument.First().Value.AsBsonArray;
}
else
{
arrayValues = BsonArray.Create(new BsonValue[] { value });
}
if (arrayNode == BsonNull.Value)
{
BsonHelpers.SetDocumentValue(name, doc, arrayValues, isUnset: false);
return;
}
if (!arrayNode.IsBsonArray)
{
throw new InMemoryDatabaseException($"Cannot push to element [{arrayNode.BsonType.ToString()}] '{name}', it is not an array");
}
var node = arrayNode.AsBsonArray;
node.AddRange(arrayValues);
}
private static void DoMultiply(BsonDocument doc, string name, BsonValue value)
{
var currentValue = BsonHelpers.GetDocumentValue(name, doc);
BsonValue newValue;
if (currentValue == BsonNull.Value)
{
newValue = CastTo(value.BsonType, 0);
}
else
{
newValue = BsonHelpers.Multiply(currentValue, value);
}
DoSet(doc, name, newValue);
}
private static void DoInc(BsonDocument doc, string name, BsonValue value)
{
var currentValue = BsonHelpers.GetDocumentValue(name, doc);
BsonValue newValue;
if (currentValue == BsonNull.Value)
{
newValue = value;
}
else
{
newValue = BsonHelpers.Add(currentValue, value);
}
DoSet(doc, name, newValue);
}
private static BsonValue GetDocumentValue(string name, BsonDocument doc) => BsonHelpers.GetDocumentValue(name, doc);
private static void DoSet(BsonDocument doc, string name, BsonValue value)
{
BsonHelpers.SetDocumentValue(name, doc, value, isUnset: false);
}
