/// <summary>
/// Performs the REMOVE operation on a frame stream
/// </summary>
public IEnumerable <ExecutionFrame> ApplyToFrameStream(
QueryExecutor executor,
IEnumerable <ExecutionFrame> frameStream
)
{
foreach (ExecutionFrame frame in frameStream)
{
JsonValue keyResult = KeyExpression.Evaluate(executor, frame);
// get key & ref
string key;
string rev;
if (keyResult.IsJsonObject)
{
key = keyResult["_key"].AsString;
rev = keyResult["_rev"].AsString;
}
else
{
key = keyResult.AsString;
rev = null;
}
// OLD
JsonObject oldDocument = executor.DataSource.GetDocument(
CollectionName,
key
);
// remove
executor.DataSource.RemoveDocument(
CollectionName,
key,
rev,
Options
);
// update frame
yield return(frame
.AddVariable("OLD", oldDocument));
}
}
/// <summary>
/// Performs the REPLACE operation on a frame stream
/// </summary>
public IEnumerable <ExecutionFrame> ApplyToFrameStream(
QueryExecutor executor,
IEnumerable <ExecutionFrame> frameStream
)
{
foreach (ExecutionFrame frame in frameStream)
{
// get key
JsonValue keyResult = KeyExpression.Evaluate(executor, frame);
string key = keyResult.AsString;
if (keyResult.IsJsonObject)
{
key = keyResult["_key"].AsString;
}
// get document
JsonObject document = keyResult;
if (WithExpression != null)
{
document = WithExpression.Evaluate(executor, frame);
}
// OLD
JsonObject oldDocument = executor.DataSource.GetDocument(
CollectionName,
key
);
// replace & NEW
JsonObject newDocument = executor.DataSource.ReplaceDocument(
CollectionName,
key,
document,
Options
);
// update frame
yield return(frame
.AddVariable("OLD", oldDocument)
.AddVariable("NEW", newDocument));
}
}
