Forum Discussion
How to perform pre-check before calling custom run mode
I have a custom run mode that adds a value user entered into a list. However, I would like to check if this value already exists in the current list before calling the custom run mode. I don't think ...
OK, I found the answer in your VDL Language app and adapted the following code. Thank you. :-)
function checkDuplicateSetEntry(setName, value, viewModel) {
var entryExists = viewModel.scenario.entities[setName]()
.map(function (entry) {
return entry.value;
}).indexOf(value) !== -1;
if (entryExists) {
// This will stop the VDL action chain,
// so the value will not be saved to the server
throw Error('Value "' + value + '" already exists in set "'
+ setName + '".');
}
// Return value to pass onto the next VDL action
return value;
}
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