static Expression PushExpression(Expression that, Expression field, BsonValue value)
{
if (value.BsonType == BsonType.Document)
{
var d = value.AsBsonDocument;
if (d.Contains("$each"))
{
return(PushEachExpression(that, field, d));
}
}
value.ValidateNames();
return(Expression.Call(that, GetMethod("Push"), Data, field, Expression.Constant(value, typeof(BsonValue))));
}
UpdateCompiler Set(BsonDocument document, string name, BsonValue value)
{
value.ValidateNames();
var r = document.EnsurePath(name);
if (r.Document != null)
{
r.Document[r.Key] = value;
}
else if (!r.Array.InsertOutOfRange(r.Index, () => value))
{
r.Array[r.Index] = value;
}
return(this);
}
static Expression AddToSetExpression(Expression that, Expression field, BsonValue value)
{
bool addEach = false;
if (value.BsonType == BsonType.Document)
{
var d = value.AsBsonDocument;
if (d.ElementCount == 1)
{
var e = d.ElementAt(0);
if (e.Name == "$each")
{
addEach = true;
value = e.Value;
}
}
}
value.ValidateNames();
return(Expression.Call(that, GetMethod("AddToSet"), Data, field, Expression.Constant(value, typeof(BsonValue)), Expression.Constant(addEach, typeof(bool))));
}
UpdateCompiler Min(BsonDocument document, string name, BsonValue value)
{
value.ValidateNames();
var r = document.EnsurePath(name);
if (r.Document != null)
{
BsonValue old;
if (!r.Document.TryGetValue(r.Key, out old) || value.CompareTo(old) < 0)
{
r.Document[r.Key] = value;
}
}
else if (!r.Array.InsertOutOfRange(r.Index, () => value))
{
if (value.CompareTo(r.Array[r.Index]) < 0)
{
r.Array[r.Index] = value;
}
}
return(this);
}