I'm iterating over an array, I'm using findOrCreate method to add new records and I want show all records at the end of the action... Here is what I have:
var counter = 2000
for (var i = 0; i < arr.length; i++) {
var line_array = arr[i].split(":")
var adapter_id = transponder.adapter_id
var transponder_id = transponder.id
var port = counter
var service_name = line_array[0]
var frequency = line_array[1]
var polarization = line_array[2]
var device = line_array[3]
var symbol_rate = line_array[4]
var video_id = line_array[5]
var audio_id = line_array[5]
var service_id = line_array[7]
Channel.findOrCreate({
frequency: parseInt(frequency),
symbol_rate: parseInt(symbol_rate),
service_id: parseInt(service_id)
}, {
adapter_id: adapter_id,
transponder_id: transponder_id,
port: port,
service_name: service_name,
frequency: frequency,
polarization: polarization,
device: device,
symbol_rate: symbol_rate,
video_id: video_id,
audio_id: audio_id,
service_id: service_id,
}).exec(function(err, created) {
console.log(i)
//console.log(created.service_id)
})
counter++
}
Channel.find({
transponder_id: req.param("transponder_id")
}).exec(function(err, channels) {
res.view("transponders/channel_scan", {
transponder: transponder,
channels: channels
});
})
When I run this, I don't get any errors. Nevertheless, I get empty or older records only... Not new ones. I can guess the reason behind this is Waterline queries are asynchronous, my action is executed before those queries return a value.
But the question is how will I deal with it? I've read some stuff about promises but couldn't implement. Some help would be great.
Thank you!
