Using Node.js with Caché - InterSystems Documentation

update()
Example 1: Unlock one node
mydata.unlock(
{global: "Customer", subscripts: [1]},
function(error, result) { // callback code }
);
Result:
Operation successful if no error reported.
Example 2: Unlock all locked nodes
mydata.unlock(
function(error, result) { // callback code }
);
Result:
Operation successful if no error reported.
4.19 update()
The update() method writes the contents of a JSON object to the Caché database.
• The update("array") method performs the opposite task to that performed by the retrieve method. In other words
the update method takes an array of global nodes, each expressed as a single JSON object and writes them back to the
Caché database.
• The update("object") method performs the opposite task to that performed by the retrieve method. In other words
it writes the contents of a structured JSON object back to the Caché database.
Synchronous
Asynchronous
Parameters
var result = mydata.update(node, type);
mydata.update(node, type, callback_function);
• node — the global node to be accessed.
• type — a literal string specifying the type of data to be accessed. Options are:
– "array"
– "object"
• callback_function — a function of the form function(error, result){} used to return results
asynchronously (see “Synchronous vs. Asynchronous cache.node Methods”).
Example 1 (type = “array”): Create or update a record for a customer
mydata.update(
[
{ global: "Customer",
subscripts: [1],
data: "Chris Munt"
}
Using Node.js with Caché 33