Hi all,
I'm working with *oriento *(Node.js driver) to write requests like this
batch :
db
* //Create the first Vertex*
.let('firstVertex', function(s){
s
.create('vertex', 'MyFirstVertexClass')
})
* //Get the second Vertex*
.let('secondVertex', function(s){
s
.select()
.from('MySecondVertexClass')
.where({
uuid : '1234-5678-1234'
})
})
* //Connect first Vertex -> second Vertex : IS_LINKED_TO*
.let('isLinkedToEdge', function(s){
s
.create('edge', 'IS_LINKED_TO')
.from('$firstVertex')
.to('$secondVertex')
})
.commit()
.all()
.then(function(result){
* //The code is operation OK*
})
.catch(function(err){
* //The code is operation KO*
})
.done();
Inside this batch, I would like to throw an exception if no record is
returned for $secondVertex.
Do you know any way to do that ?
Thanks a lot.
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