lodash - sum of two objects by key - lodash

Similar to this question asked previously, is there an easy way to sum two objects, or an array of objects, by key in Lodash?
{ a:12, b:8, c:17 }
and
{ a:2, b:3, c:1 }
should give
{ a:14, b:11, c:18 }

You can use lodash's _.mergeWith():
var o1 = { a:12, b:8, c:17 };
var o2 = { a:2, b:3, c:1 };
var result = _.mergeWith({}, o1, o2, function(objValue, srcValue) {
return _.isNumber(objValue) ? objValue + srcValue : srcValue;
});
console.log(result);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.js"></script>
If you know that all values are numbers, or you always want to add values together, you can use _.add() as the merging customizer:
var o1 = { a:12, b:8, c:17, d: 'a' };
var o2 = { a:2, b:3, c:1, d: 'b' };
var result = _.mergeWith({}, o1, o2, _.add);
console.log(result);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.js"></script>
To merge an array of objects use spread syntax with _.mergeWith():
var arr = [{ a:12, b:8, c:17 }, { a:2, b:3, c:1 }];
var result = _.mergeWith({}, ...arr, function(objValue, srcValue) {
return _.isNumber(objValue) ? objValue + srcValue : srcValue;
});
console.log(result);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.js"></script>
Or with Array.reduce():
var arr = [{ a:12, b:8, c:17 }, { a:2, b:3, c:1 }];
var result = arr.reduce(function(r, o) {
return _.mergeWith(r, o, function(objValue, srcValue) {
return _.isNumber(objValue) ? objValue + srcValue : srcValue;
});
}, {});
console.log(result);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.js"></script>

One solution is to use assignWith and add
var o1 = { a:12, b:8, c:17 };
var o2 = { a:2, b:3, c:1 };
const combined = _.assignWith({}, o1, o2, _.add)
console.log(combined);
<script src="https://cdn.jsdelivr.net/npm/lodash#4.17.20/lodash.min.js"></script>

Related

Can't pass my data to the mounted() method

I am fairly new to Vue so excuse my stupidity!!
Can anyone tell me what I am doing wrong in my code below that is preventing me from getting my 'series_interactions_daily' variable data from inside the mounted() method please? I am console.log()'ing it but nothing shows! I can print 'series_interactions_daily' to screen in the HTML though!
<script>
import * as am4core from "#amcharts/amcharts4/core";
import * as am4charts from "#amcharts/amcharts4/charts";
import am4themes_animated from "#amcharts/amcharts4/themes/animated";
am4core.useTheme(am4themes_animated);
export default {
mounted() {
let chart = am4core.create(this.$refs.chartdiv, am4charts.XYChart);
chart.paddingRight = 20;
let dummydata = [];
let visits = 10;
for (let i = 1; i < 366; i++) {
visits += Math.round((Math.random() < 0.5 ? 1 : -1) * Math.random() * 10);
dummydata.push({ date: new Date(2018, 0, i), name: "name" + i, value: visits });
}
chart.data = dummydata;
console.log(this.series_interactions_daily);
let dateAxis = chart.xAxes.push(new am4charts.DateAxis());
dateAxis.renderer.grid.template.location = 0;
let valueAxis = chart.yAxes.push(new am4charts.ValueAxis());
valueAxis.tooltip.disabled = true;
valueAxis.renderer.minWidth = 35;
let series = chart.series.push(new am4charts.LineSeries());
series.dataFields.dateX = "date";
series.dataFields.valueY = "value";
series.tooltipText = "{valueY.value}";
chart.cursor = new am4charts.XYCursor();
let scrollbarX = new am4charts.XYChartScrollbar();
scrollbarX.series.push(series);
chart.scrollbarX = scrollbarX;
this.chart = chart;
},
beforeDestroy() {
if (this.chart) {
this.chart.dispose();
}
},
data() {
return {
campaign_id: this.$route.params.campaign_id,
campaign: [],
dateranges: [],
total_interactions: '',
average_daily_interactions: '',
series_interactions_daily: [],
}
},
methods: {
onChange(event) {
this.$router.push('?range=' + event.target.value);
this.$http.get('https://dev.local/api/portal/campaign/' + this.campaign_id + '?range=' + event.target.value)
.then(function(data){
return data.json();
}).then(function(data){
this.campaign = data.campaign;
this.dateranges = data.dateranges;
this.total_interactions = data.totalInteractions;
this.average_daily_interactions = data.averagreDailyInteractions;
this.series_interactions_daily = data.interactions_per_day.stats.interaction.daily;
});
}
},
created() {
this.$http.get('https://dev.local/api/portal/campaign/' + this.campaign_id + '?' + this.axiosParams)
.then(function(data){
return data.json();
}).then(function(data){
this.campaign = data.campaign;
this.dateranges = data.dateranges;
this.total_interactions = data.totalInteractions;
this.average_daily_interactions = data.averagreDailyInteractions;
this.series_interactions_daily = data.interactions_per_day.stats.interaction.daily;
});
},
computed: {
axiosParams() {
const params = new URLSearchParams();
if(this.$route.query.range) params.append('range', this.$route.query.range);
return params;
}
},
filters: {
},
directives: {
},
}
</script>
EDIT
OK, so I have create a method to fetchData() from mounted(){} - however I am still not getting my 'series_interactions_daily' variable data!
<script>
import * as am4core from "#amcharts/amcharts4/core";
import * as am4charts from "#amcharts/amcharts4/charts";
import am4themes_animated from "#amcharts/amcharts4/themes/animated";
am4core.useTheme(am4themes_animated);
export default {
mounted() {
this.fetchData();
let chart = am4core.create(this.$refs.chartdiv, am4charts.XYChart);
chart.paddingRight = 20;
let dummydata = [];
let visits = 10;
for (let i = 1; i < 366; i++) {
visits += Math.round((Math.random() < 0.5 ? 1 : -1) * Math.random() * 10);
dummydata.push({ date: new Date(2018, 0, i), name: "name" + i, value: visits });
}
chart.data = dummydata;
console.log(this.series_interactions_daily);
let dateAxis = chart.xAxes.push(new am4charts.DateAxis());
dateAxis.renderer.grid.template.location = 0;
let valueAxis = chart.yAxes.push(new am4charts.ValueAxis());
valueAxis.tooltip.disabled = true;
valueAxis.renderer.minWidth = 35;
let series = chart.series.push(new am4charts.LineSeries());
series.dataFields.dateX = "date";
series.dataFields.valueY = "value";
series.tooltipText = "{valueY.value}";
chart.cursor = new am4charts.XYCursor();
let scrollbarX = new am4charts.XYChartScrollbar();
scrollbarX.series.push(series);
chart.scrollbarX = scrollbarX;
this.chart = chart;
},
beforeDestroy() {
if (this.chart) {
this.chart.dispose();
}
},
data() {
return {
campaign_id: this.$route.params.campaign_id,
campaign: [],
dateranges: [],
total_interactions: '',
average_daily_interactions: '',
series_interactions_daily: [],
}
},
methods: {
fetchData() {
this.$http.get('https://dev.local/api/portal/campaign/' + this.campaign_id + '?' + this.axiosParams)
.then(function(data){
return data.json();
}).then(function(data){
this.campaign = data.campaign;
this.dateranges = data.dateranges;
this.total_interactions = data.totalInteractions;
this.average_daily_interactions = data.averagreDailyInteractions;
this.series_interactions_daily = data.interactions_per_day.stats.interaction.daily;
});
},
onChange(event) {
this.$router.push('?range=' + event.target.value);
this.$http.get('https://connie.laravel/api/portal/campaign/' + this.campaign_id + '?range=' + event.target.value)
.then(function(data){
return data.json();
}).then(function(data){
this.campaign = data.campaign;
this.dateranges = data.dateranges;
this.total_interactions = data.totalInteractions;
this.average_daily_interactions = data.averagreDailyInteractions;
this.series_interactions_daily = data.interactions_per_day.stats.interaction.daily;
});
}
},
created() {
},
computed: {
axiosParams() {
const params = new URLSearchParams();
if(this.$route.query.range) params.append('range', this.$route.query.range);
return params;
}
},
filters: {
},
directives: {
},
}
</script>
Any help appreciated.
Thanks,
K...
In fetchData, return the promise returned by the async $http call:
fetchData() {
return this.$http.get(...)
...
}
Now you can register a callback on that promise in mounted:
mounted() {
this.fetchData().then(result => {
...
});
}
Or just await it with async/await:
async mounted() {
await this.fetchData();
...
// Now everything will be ready
}
As #tao mentioned in comments, note that the await would delay any code that comes after it. If you don't have anything else to do in the hook anyway that's no problem but it's something to understand.

ASP.NET CORE MVC With Google Charts - No Data

Trying to implement Google Chart with ASP.Net CORE MVC.
Been at it for two days, but I can not figure out my mistake. I don't get an error, and I can see the array in the console, but no data.
VIEWMODEL
public class ZipCodes
{
public string ZipCode { get; set; }
public int ZipCount { get; set; }
}
CONTROLLER
public ActionResult IncidentsByZipCode()
{
var incidentsByZipCode = (from o in _context.Incident
group o by o.ZipCode into g
orderby g.Count() descending
select new
{
ZipCode = g.Key,
ZipCount = g.Count()
}).ToList();
return Json(incidentsByZipCode);
}
VIEW
function IncidentsByZipCode() {
$.ajax({
type: 'GET',
url: '#Url.Action("IncidentsByZipCode", "Controller")',
success: function (response) {
console.log(response);
var data = new google.visualization.DataTable();
data.addColumn('string', 'ZipCode');
data.addColumn('number', 'ZipCount');
for (var i = 0; i < response.result.length; i++) {
data.addRow([response.result[i].ZipCode, response.result[i].ZipCount]);
}
var chart = new google.visualization.ColumnChart(document.getElementById('incidentsByZipCode'));
chart.draw(data,
{
title: "",
position: "top",
fontsize: "14px",
chartArea: { width: '100%' },
});
},
error: function () {
alert("Error loading data!");
}
});
}
Because the api you use is not Column Chart, the data cannot be added and rendered correctly. According to the official example, you need to make some changes.
Here is the ajax code.
<script>
//Generate random colors
function bg() {
var r = Math.floor(Math.random() * 256);
var g = Math.floor(Math.random() * 256);
var b = Math.floor(Math.random() * 256);
return "rgb(" + r + ',' + g + ',' + b + ")";
}
function IncidentsByZipCode() {
$.ajax({
type: 'GET',
url: '#Url.Action("IncidentsByZipCode","home")',
success: function (response) {
google.charts.load('current', { packages: ['corechart'] });
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
var obj = [
["Element", "Density", { role: "style" }],
];
$.each(response, function (index, value) {
obj.push([value.zipCode, value.zipCount, bg()])
})
var data = google.visualization.arrayToDataTable(obj);//This is method of Column Chart
var view = new google.visualization.DataView(data);
view.setColumns([0, 1,
{
calc: "stringify",
sourceColumn: 1,
type: "string",
role: "annotation"
},
2]);
var chart = new google.visualization.ColumnChart(document.getElementById('incidentsByZipCode'));
chart.draw(data,
{
title: "",
position: "top",
fontsize: "14px",
chartArea: { width: '100%' },
});
}
},
error: function () {
alert("Error loading data!");
}
});
}
IncidentsByZipCode()
This is the controller.
public ActionResult IncidentsByZipCode()
{
//var incidentsByZipCode = (from o in _context.Incident
// group o by o.ZipCode into g
// orderby g.Count() descending
// select new
// {
// ZipCode = g.Key,
// ZipCount = g.Count()
// }).ToList();
var incidentsByZipCode = new List<ZipCodes>
{
new ZipCodes{ ZipCode="code1", ZipCount=3},
new ZipCodes{ZipCode="code2",ZipCount=4},
new ZipCodes{ZipCode="code3",ZipCount=2},
new ZipCodes{ZipCode="code4",ZipCount=9},
};
return Json(incidentsByZipCode);
}
Result, and you can also refer to this document
.

Dynamically addTrack to offerer from answerer onnegotiationneeded in webrtc

Is there anyway to notify offerer that non-existing track before just added to get the new stream from the answerer from the code below?
For my current issue now here is that the offerer can add new non-existing track and onnegotiationneeded will be fired and will also be able to createOffer and update media successfully, but when answerer do same process onnegotiationneeded fired normally also from the answerer but no media will be exchanged just because offerer do not have any new track on his end!
I use replaceOrAddTrack(remotePartiID, track, TrackKind) in adding and replacing of tracks
Only the replace works with either ends if it has same track kind from initial connection
_cfg = {
sdpConstraints: {
mandatory: {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true,
VoiceActivityDetection: true,
IceRestart: true
},
optional: []
}
...
};
var channels_wrap = (function() {
return {
...
init: function() {
_cfg.defaultChannel.on('message', (message) => {
if (_cfg.enableLog) {
console.log('Client received message:', message);
}
if (message.type === 'newparticipant') {
var partID = message.from;
var partData = message.fromData;
// Open a new communication channel to the new participant
_cfg.offerChannels[partID] = this.openSignalingChannel(partID);
// Wait for answers (to offers) from the new participant
_cfg.offerChannels[partID].on('message', (msg) => {
if (msg.dest === _cfg.myID) {
if (msg.type === 'reoffer') {
if (_cfg.opc.hasOwnProperty(msg.from)) {
console.log('reoffering')
_cfg.opc[msg.from].negotiationNeeded();
}
} else
if (msg.type === 'answer') {
_cfg.opc[msg.from].peer.setRemoteDescription(new RTCSessionDescription(msg.snDescription),
handlers_wrap.setRemoteDescriptionSuccess,
handlers_wrap.setRemoteDescriptionError);
} else if (msg.type === 'candidate') {
var candidate = new RTCIceCandidate({
sdpMLineIndex: msg.label,
candidate: msg.candidate
});
if (_cfg.enableLog) {
console.log('got ice candidate from ' + msg.from);
}
_cfg.opc[msg.from].peer.addIceCandidate(candidate, handlers_wrap.addIceCandidateSuccess, handlers_wrap.addIceCandidateError);
}
}
});
// Send an offer to the new participant
dialogs_wrap.createOffer(partID, partData);
} else if (message.type === 'bye') {
handlers_wrap.hangup(message.from, message.fromData);
}
});
},
initPrivateChannel: function() {
// Open a private channel (namespace = _cfg.myID) to receive offers
_cfg.privateAnswerChannel = this.openSignalingChannel(_cfg.myID);
// Wait for offers or ice candidates
_cfg.privateAnswerChannel.on('message', (message) => {
if (message.dest === _cfg.myID) {
if (message.type === 'offer') {
var to = message.from;
dialogs_wrap.createAnswer(message.snDescription, _cfg.privateAnswerChannel, to, message.fromData);
} else if (message.type === 'candidate') {
var candidate = new RTCIceCandidate({
sdpMLineIndex: message.label,
candidate: message.candidate
});
_cfg.apc[message.from].peer.addIceCandidate(candidate, handlers_wrap.addIceCandidateSuccess, handlers_wrap.addIceCandidateError);
}
}
});
}
};
})();
var tracks_wrap = (function() {
return {
getParticipants: function(partID = null) {
var participants = {};
if (partID) {
if (_cfg.opc.hasOwnProperty(partID)) {
participants[partID] = {
ID: partID,
type: 'opc'
};
} else
if (_cfg.apc.hasOwnProperty(partID)) {
participants[partID] = {
ID: partID,
type: 'apc'
};
}
} else {
for (let key in _cfg.opc) {
participants[key] = {
ID: key,
type: 'opc'
};
}
for (let key in _cfg.apc) {
participants[key] = {
ID: key,
type: 'apc'
};
}
}
return participants;
},
replaceOrAddTrack: function(remotePartiID, track, TrackKind) {
if (!TrackKind) {
return;
}
var participants = this.getParticipants(remotePartiID);
for (var partiID in participants) {
var peer = null;
if (participants[partiID].type === 'apc' && _cfg.apc.hasOwnProperty(partiID)) {
peer = _cfg.apc[partiID].peer;
} else if (participants[partiID].type === 'opc' && _cfg.opc.hasOwnProperty(partiID)) {
peer = _cfg.opc[partiID].peer;
} else {
continue;
}
var foundTrack = null;
peer.getSenders().forEach(function(rtpSender) {
if (rtpSender.track && TrackKind === rtpSender.track.kind) {
foundTrack = true;
rtpSender.replaceTrack(track);
}
});
if (!foundTrack) {
peer.addTrack(track, _cfg.localStream); //This work only if it is offerrer that add track but not working with answerer even if i tell the offerer to send offer again
}
}
}
};
})();
var dialogs_wrap = (function() {
return {
/**
*
* Send an offer to peer with id partID and metadata as partData
*
*/
createOffer: function(partID, partData) {
if (_cfg.enableLog) {
console.log('Creating offer for peer ' + partID, partData);
}
var opcPeer = new RTCPeerConnection(_cfg.pcConfig, _cfg.peerSetup);
_cfg.opc[partID] = {};
_cfg.opc[partID].peer = opcPeer;
_cfg.opc[partID].peer.onicecandidate = handlers_wrap.handleIceCandidateAnswer(_cfg.offerChannels[partID], partID, partData);
_cfg.opc[partID].peer.ontrack = handlers_wrap.handleRemoteStreamAdded(partID, partData);
_cfg.opc[partID].peer.onremovetrack = handlers_wrap.handleRemoteStreamRemoved(partID, partData);
_cfg.localStream.getTracks().forEach(track => _cfg.opc[partID].peer.addTrack(track, _cfg.localStream));
try {
_cfg.sendChannel[partID] = _cfg.opc[partID].peer.createDataChannel("sendDataChannel", {
reliable: false
});
_cfg.sendChannel[partID].onmessage = handlers_wrap.handleMessage;
if (_cfg.enableLog) {
console.log('Created send data channel');
}
} catch (e) {
alert('Failed to create data channel. \n You need supported RtpDataChannel enabled browser');
console.log('createDataChannel() failed with exception: ', e.message);
}
_cfg.sendChannel[partID].onopen = handlers_wrap.handleSendChannelStateChange(partID);
_cfg.sendChannel[partID].onclose = handlers_wrap.handleSendChannelStateChange(partID);
var onSuccess = (partID, partData) => {
var channel = _cfg.offerChannels[partID];
if (_cfg.enableLog) {
console.log('Sending offering');
}
channel.emit('message', {
snDescription: _cfg.opc[partID].peer.localDescription,
from: _cfg.myID,
fromData: _cfg.myData,
type: 'offer',
dest: partID,
destData: partData
});
}
_cfg.opc[partID].negotiationNeeded = () => {
_cfg.opc[partID].peer.createOffer(_cfg.sdpConstraints).then(offer => {
offer.sdp = sdp_wrap.SDPController(offer.sdp);
return _cfg.opc[partID].peer.setLocalDescription(offer)
})
.then(() => onSuccess(partID, partData)).catch(handlers_wrap.handleCreateOfferError);
}
_cfg.opc[partID].peer.onnegotiationneeded = () => {
_cfg.opc[partID].negotiationNeeded();
}
},
createAnswer: function(snDescription, cnl, to, toData) {
if (_cfg.enableLog) {
console.log('Creating answer for peer ' + to);
}
if (!_cfg.apc.hasOwnProperty(to)) {
var apcPeer = new RTCPeerConnection(_cfg.pcConfig, _cfg.peerSetup);
//apcPeer.setConfiguration(_cfg.pcConfig);
_cfg.apc[to] = {};
_cfg.apc[to].peer = apcPeer;
_cfg.apc[to].peer.onicecandidate = handlers_wrap.handleIceCandidateAnswer(cnl, to, toData);
_cfg.apc[to].peer.ontrack = handlers_wrap.handleRemoteStreamAdded(to, toData);
_cfg.apc[to].peer.onremovetrack = handlers_wrap.handleRemoteStreamRemoved(to, toData);
_cfg.localStream.getTracks().forEach(track => _cfg.apc[to].peer.addTrack(track, _cfg.localStream));
_cfg.apc[to].peer.ondatachannel = handlers_wrap.gotReceiveChannel(to);
}
_cfg.apc[to].peer.setRemoteDescription(new RTCSessionDescription(snDescription), handlers_wrap.setRemoteDescriptionSuccess, handlers_wrap.setRemoteDescriptionError);
var onSuccess = (channel) => {
if (_cfg.enableLog) {
console.log('Sending answering');
}
channel.emit('message', {
snDescription: _cfg.apc[to].peer.localDescription,
from: _cfg.myID,
fromData: _cfg.myData,
type: 'answer',
dest: to,
destData: toData
});
}
_cfg.apc[to].peer.createAnswer().then(function(answer) {
answer.sdp = sdp_wrap.SDPController(answer.sdp);
return _cfg.apc[to].peer.setLocalDescription(answer);
})
.then(() => onSuccess(cnl))
.catch(handlers_wrap.handleCreateAnswerError);
var negotiationNeeded = false;
_cfg.apc[to].peer.onnegotiationneeded = (ev) => {
if (!negotiationNeeded) {
negotiationNeeded = true;
return;
}
//So i tried to create this to tell the offerer to do offer again, offerer do resend offer but nothing seem to happen
cnl.emit('message', {
from: _cfg.myID,
fromData: _cfg.myData,
type: 'reoffer',
dest: to,
destData: toData
});
}
}
};
})();

Trello API add base64 data image as an attachement

I'd like to send base64 image as an attachment to a trello card through the API
POST /1/cards/[card id or shortlink]/attachments
There's a file field but it does not specify how should look the data there.
Refs: https://developers.trello.com/advanced-reference/card#post-1-cards-card-id-or-shortlink-attachments
Any idea?
Short answer: Trello's API only works to attach binary data via multipart/form-data. Examples below.
Long answer:
The Trello API to add attachments and images is frustratingly under-documented. They do have a coffeescript Client.js for those of us using Javascript to simplify all the basic operations: https://trello.com/1/client.coffee
Using the vanilla Client.js file I have been able to attach links and text files. While the CURL example shows pulling a binary file in from a hard drive, that doesn't work for those of us completely on a server or client where we don't have permissions to create a file.
From a LOT of trial and error, I've determined all binary data (images, documents, etc.) must be attached using multipart/form-data. Here is a jQuery snippet that will take a URL to an item, get it into memory, and then send it to Trello.
var opts = {'key': 'YOUR TRELLO KEY', 'token': 'YOUR TRELLO TOKEN'};
var xhr = new XMLHttpRequest();
xhr.open('get', params); // params is a URL to a file to grab
xhr.responseType = 'blob'; // Use blob to get the file's mimetype
xhr.onload = function() {
var fileReader = new FileReader();
fileReader.onload = function() {
var filename = (params.split('/').pop().split('#')[0].split('?')[0]) || params || '?'; // Removes # or ? after filename
var file = new File([this.result], filename);
var form = new FormData(); // this is the formdata Trello needs
form.append("file", file);
$.each(['key', 'token'], function(iter, item) {
form.append(item, opts.data[item] || 'ERROR! Missing "' + item + '"');
});
$.extend(opts, {
method: "POST",
data: form,
cache: false,
contentType: false,
processData: false
});
return $.ajax(opts);
};
fileReader.readAsArrayBuffer(xhr.response); // Use filereader on blob to get content
};
xhr.send();
I have submitted a new coffeescript for Trello developer support to consider uploading to replace Client.js. It adds a "Trello.upload(url)" that does this work.
I've also attached here for convenience in JS form.
// Generated by CoffeeScript 1.12.4
(function() {
var opts={"version":1,"apiEndpoint":"https://api.trello.com","authEndpoint":"https://trello.com"};
var deferred, isFunction, isReady, ready, waitUntil, wrapper,
slice = [].slice;
wrapper = function(window, jQuery, opts) {
var $, Trello, apiEndpoint, authEndpoint, authorizeURL, baseURL, collection, fn, fn1, i, intentEndpoint, j, key, len, len1, localStorage, location, parseRestArgs, readStorage, ref, ref1, storagePrefix, token, type, version, writeStorage;
$ = jQuery;
key = opts.key, token = opts.token, apiEndpoint = opts.apiEndpoint, authEndpoint = opts.authEndpoint, intentEndpoint = opts.intentEndpoint, version = opts.version;
baseURL = apiEndpoint + "/" + version + "/";
location = window.location;
Trello = {
version: function() {
return version;
},
key: function() {
return key;
},
setKey: function(newKey) {
key = newKey;
},
token: function() {
return token;
},
setToken: function(newToken) {
token = newToken;
},
rest: function() {
var args, error, method, params, path, ref, success;
method = arguments[0], args = 2 <= arguments.length ? slice.call(arguments, 1) : [];
ref = parseRestArgs(args), path = ref[0], params = ref[1], success = ref[2], error = ref[3];
opts = {
url: "" + baseURL + path,
type: method,
data: {},
dataType: "json",
success: success,
error: error
};
if (!$.support.cors) {
opts.dataType = "jsonp";
if (method !== "GET") {
opts.type = "GET";
$.extend(opts.data, {
_method: method
});
}
}
if (key) {
opts.data.key = key;
}
if (token) {
opts.data.token = token;
}
if (params != null) {
$.extend(opts.data, params);
}
if (method === 'UPLOAD' && typeof (params) === "string" && params.length > 5) {
var xhr = new XMLHttpRequest();
xhr.open('get', params);
xhr.responseType = 'blob'; // Use blob to get the mimetype
xhr.onload = function() {
var fileReader = new FileReader();
fileReader.onload = function() {
var filename = (params.split('/').pop().split('#')[0].split('?')[0]) || params || '?'; // Removes # or ? after filename
var file = new File([this.result], filename);
var form = new FormData();
form.append("file", file);
$.each(['key', 'token'], function(iter, item) {
form.append(item, opts.data[item] || 'ERROR! Missing "' + item + '"');
});
$.extend(opts, {
method: "POST",
data: form,
cache: false,
contentType: false,
processData: false
});
return $.ajax(opts);
};
fileReader.readAsArrayBuffer(xhr.response); // Use filereader on blob to get content
};
xhr.send();
} else {
return $.ajax(opts);
}
},
authorized: function() {
return token != null;
},
deauthorize: function() {
token = null;
writeStorage("token", token);
},
authorize: function(userOpts) {
var k, persistToken, ref, regexToken, scope, v;
opts = $.extend(true, {
type: "redirect",
persist: true,
interactive: true,
scope: {
read: true,
write: false,
account: false
},
expiration: "30days"
}, userOpts);
regexToken = /[&#]?token=([0-9a-f]{64})/;
persistToken = function() {
if (opts.persist && (token != null)) {
return writeStorage("token", token);
}
};
if (opts.persist) {
if (token == null) {
token = readStorage("token");
}
}
if (token == null) {
token = (ref = regexToken.exec(location.hash)) != null ? ref[1] : void 0;
}
if (this.authorized()) {
persistToken();
location.hash = location.hash.replace(regexToken, "");
return typeof opts.success === "function" ? opts.success() : void 0;
}
if (!opts.interactive) {
return typeof opts.error === "function" ? opts.error() : void 0;
}
scope = ((function() {
var ref1, results;
ref1 = opts.scope;
results = [];
for (k in ref1) {
v = ref1[k];
if (v) {
results.push(k);
}
}
return results;
})()).join(",");
switch (opts.type) {
case "popup":
(function() {
var authWindow, height, left, origin, receiveMessage, ref1, top, width;
waitUntil("authorized", (function(_this) {
return function(isAuthorized) {
if (isAuthorized) {
persistToken();
return typeof opts.success === "function" ? opts.success() : void 0;
} else {
return typeof opts.error === "function" ? opts.error() : void 0;
}
};
})(this));
width = 420;
height = 470;
left = window.screenX + (window.innerWidth - width) / 2;
top = window.screenY + (window.innerHeight - height) / 2;
origin = (ref1 = /^[a-z]+:\/\/[^\/]*/.exec(location)) != null ? ref1[0] : void 0;
authWindow = window.open(authorizeURL({
return_url: origin,
callback_method: "postMessage",
scope: scope,
expiration: opts.expiration,
name: opts.name
}), "trello", "width=" + width + ",height=" + height + ",left=" + left + ",top=" + top);
receiveMessage = function(event) {
var ref2;
if (event.origin !== authEndpoint || event.source !== authWindow) {
return;
}
if ((ref2 = event.source) != null) {
ref2.close();
}
if ((event.data != null) && /[0-9a-f]{64}/.test(event.data)) {
token = event.data;
} else {
token = null;
}
if (typeof window.removeEventListener === "function") {
window.removeEventListener("message", receiveMessage, false);
}
isReady("authorized", Trello.authorized());
};
return typeof window.addEventListener === "function" ? window.addEventListener("message", receiveMessage, false) : void 0;
})();
break;
default:
window.location = authorizeURL({
redirect_uri: location.href,
callback_method: "fragment",
scope: scope,
expiration: opts.expiration,
name: opts.name
});
}
},
addCard: function(options, next) {
var baseArgs, getCard;
baseArgs = {
mode: 'popup',
source: key || window.location.host
};
getCard = function(callback) {
var height, left, returnUrl, top, width;
returnUrl = function(e) {
var data;
window.removeEventListener('message', returnUrl);
try {
data = JSON.parse(e.data);
if (data.success) {
return callback(null, data.card);
} else {
return callback(new Error(data.error));
}
} catch (error1) {}
};
if (typeof window.addEventListener === "function") {
window.addEventListener('message', returnUrl, false);
}
width = 500;
height = 600;
left = window.screenX + (window.outerWidth - width) / 2;
top = window.screenY + (window.outerHeight - height) / 2;
return window.open(intentEndpoint + "/add-card?" + $.param($.extend(baseArgs, options)), "trello", "width=" + width + ",height=" + height + ",left=" + left + ",top=" + top);
};
if (next != null) {
return getCard(next);
} else if (window.Promise) {
return new Promise(function(resolve, reject) {
return getCard(function(err, card) {
if (err) {
return reject(err);
} else {
return resolve(card);
}
});
});
} else {
return getCard(function() {});
}
}
};
ref = ["GET", "PUT", "POST", "DELETE", "UPLOAD"];
fn = function(type) {
return Trello[type.toLowerCase()] = function() {
return this.rest.apply(this, [type].concat(slice.call(arguments)));
};
};
for (i = 0, len = ref.length; i < len; i++) {
type = ref[i];
fn(type);
}
Trello.del = Trello["delete"];
ref1 = ["actions", "cards", "checklists", "boards", "lists", "members", "organizations", "lists"];
fn1 = function(collection) {
return Trello[collection] = {
get: function(id, params, success, error) {
return Trello.get(collection + "/" + id, params, success, error);
}
};
};
for (j = 0, len1 = ref1.length; j < len1; j++) {
collection = ref1[j];
fn1(collection);
}
window.Trello = Trello;
authorizeURL = function(args) {
var baseArgs;
baseArgs = {
response_type: "token",
key: key
};
return authEndpoint + "/" + version + "/authorize?" + $.param($.extend(baseArgs, args));
};
parseRestArgs = function(arg) {
var error, params, path, success;
path = arg[0], params = arg[1], success = arg[2], error = arg[3];
if (isFunction(params)) {
error = success;
success = params;
params = {};
}
path = path.replace(/^\/*/, "");
return [path, params, success, error];
};
localStorage = window.localStorage;
if (localStorage != null) {
storagePrefix = "trello_";
readStorage = function(key) {
return localStorage[storagePrefix + key];
};
writeStorage = function(key, value) {
if (value === null) {
return delete localStorage[storagePrefix + key];
} else {
return localStorage[storagePrefix + key] = value;
}
};
} else {
readStorage = writeStorage = function() {};
}
};
deferred = {};
ready = {};
waitUntil = function(name, fx) {
if (ready[name] != null) {
return fx(ready[name]);
} else {
return (deferred[name] != null ? deferred[name] : deferred[name] = []).push(fx);
}
};
isReady = function(name, value) {
var fx, fxs, i, len;
ready[name] = value;
if (deferred[name]) {
fxs = deferred[name];
delete deferred[name];
for (i = 0, len = fxs.length; i < len; i++) {
fx = fxs[i];
fx(value);
}
}
};
isFunction = function(val) {
return typeof val === "function";
};
wrapper(window, jQuery, opts);
}).call(this);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.3/jquery.min.js"></script>

How to join two collections in a json store?

I am working on IBM Worklight. I need to access data from two collections. Is there any solution for joining the 2 collections and get the required fields ?
JSONSTORE does not have the ability to combine collections.
However the follow blog post details one way to achieve this: https://mobilefirstplatform.ibmcloud.com/blog/2015/02/24/working-jsonstore-collections-join/
Create a collection:
var OrdersCollection = {
orders: {
searchFields: {
order_id: 'integer',
order_date: 'string'
},
additionalSearchFields: {
customer_id: 'integer'
}
}
};
var CustomerCollection = {
customers: {
searchFields: {
customer_name : 'string',
contact_name : 'string',
country : 'string'
},
additionalSearchFields : {
customer_id : 'integer'
}
}
};
Add data using additional search fields:
var data = [
{order_id : 462, order_date : '1-1-2000'},
{order_id: 608, order_date : '2-2-2001'},
{order_id: 898, order_date : '3-3-2002'}
];
var counter = 0;
var q = async.queue(function (task, callback) {
setTimeout(function () {
WL.JSONStore.get('orders').add(task.data, {additionalSearchFields: {customer_id: task.customer_id}});
callback(++counter);
},0);
},1);
for(var i = 0; i < data.length; i++){
q.push({data : data[i], customer_id: i+1}, function(counter){
console.log("Added Order Doc " + counter);
});
}
q.drain = function(){
setTimeout(function() {
console.log("Finished adding order documents");
WL.JSONStore.get("orders").findAll({filter : ["customer_id", "order_id", "order_date"]})
.then(function (res) {
ordersCollectionData = res;
document.getElementById("orders").innerHTML = JSON.stringify(res, null, "\t");
})
.fail(function (err) {
console.log("There was a problem at " + JSON.stringify(err));
});
},0);
};
Find the documents to merge:
WL.JSONStore.get('orders').findAll({filter : ['customer_id', 'order_id', 'order_date']})
.then(function (res) {
ordersCollectionData = res;
});
Merge
var shared_index = 'customer_id';
var mergedCollection = [];
mergedCollection =_.merge(customerCollectionData, ordersCollectionData, function(a, b){
if(_.isObject(a) && (a[shared_index] == b[shared_index])) {
return _.merge({}, a, b);
}
});