serialize Ext.data.JsonStore content - serialization

How do you serialize the JsonStore content? I tried Ext.encode(store.data.items), but it throws an exception "too many recursions".

Here's a quick function that should work
function(store) {
if(typeof(store) != 'object') { return ''; }
var dataArray = [];
var encodedData = '';
var data = store.data.items;
Ext.each(data, function(item, index, array) {
dataArray.push(item.data);
});
return Ext.encode(dataArray);
},

Here's another option that uses the each() function on the store itself.
function getEncodedStoreItems(storeName) {
var encodedData = "";
if (typeof storeName !== "undefined") {
var store = Ext.data.StoreManager.lookup(storeName);
if (store != null) {
var data = [];
store.each(function(item, index, count) {
data.push(item.data);
});
encodedData = Ext.encode(data);
}
}
return encodedData;
}

Related

How to avoid duplicated headlines from news api?

I am using a news api where I am often getting many duplicate headlines. How can I adapt my code to avoid this?
final response = await http.get(url);
final jsonData = jsonDecode(response.body);
if (jsonData[Strings.status] == Strings.ok) {
jsonData[Strings.articles].forEach((element) {
if (element[Strings.urlToImg] != null &&
element[SharedStrings.description] != null) {
ArticleModel articleModel = ArticleModel(
title: element[SharedStrings.title],
author: element[Strings.author],
description: element[SharedStrings.description],
url: element[Strings.urlText],
urlToImage: element[Strings.urlToImg],
content: element[Strings.content], //context
);
news.add(articleModel);
getNews() async {
News newsClass = News();
await newsClass.getNews();
articles = newsClass.news;
setState(() => _loading = false);
}
before the line
news.add(articleModel);
Add this:
var isDuplicated = false;
for (var new in news) {
if (new.title == articleModel.title) {
isDuplicated = true;
}
}
if (!isDuplicated) {
// Now you can add it
news.add(articleModel);
}

Override a javascript function in Odoo 11?

I want to inherit function add_product of models.Order.
Here is the original function
/point_of_sale/static/src/js/models.js
add_product: function(product, options){
if(this._printed){
this.destroy();
return this.pos.get_order().add_product(product, options);
}
this.assert_editable();
options = options || {};
var attr = JSON.parse(JSON.stringify(product));
attr.pos = this.pos;
attr.order = this;
var line = new exports.Orderline({}, {pos: this.pos, order: this, product: product});
if(options.quantity !== undefined){
line.set_quantity(options.quantity);
}
if(options.price !== undefined){
line.set_unit_price(options.price);
}
//To substract from the unit price the included taxes mapped by the fiscal position
this.fix_tax_included_price(line);
if(options.discount !== undefined){
line.set_discount(options.discount);
}
if(options.extras !== undefined){
for (var prop in options.extras) {
line[prop] = options.extras[prop];
}
}
var to_merge_orderline;
for (var i = 0; i < this.orderlines.length; i++) {
if(this.orderlines.at(i).can_be_merged_with(line) && options.merge !== false){
to_merge_orderline = this.orderlines.at(i);
}
}
if (to_merge_orderline){
to_merge_orderline.merge(line);
} else {
this.orderlines.add(line);
}
this.select_orderline(this.get_last_orderline());
if(line.has_product_lot){
this.display_lot_popup();
}
},
I need to add one more condidtion like,
if(options.is_promo !== undefined){
line.set_promo(options.is_promo);
}
},
So in my custom module, I tried this,
var _super_order = models.Order.prototype;
models.Order = models.Order.extend({
add_product: function(product, options){
if(options.is_promo !== undefined){
line.set_promo(options.is_promo);
}
_super_order.add_product.apply(this,arguments);
},
But it throws an error, line is not defined.
How can i do it?

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>

Saving data from XMLHttpRequest Response to my IndexedDB

I have created a json file containing my Sql Server datas. With the XmlHttpRequest's GET method, I am reading json file and iterating and saving those records to my IndexedDB.. Everything is working fine.. After the end of the iteration, I wrote a code to alert the user.. But the alert message is displayed very quickly, but when I see it in the console window, the saving operation is till processing.. I want to alert the user, only after the operation is completed..
My code is,
if (window.XMLHttpRequest) {
var sFileText;
var sPath = "IDBFiles/Reservation.json";
//console.log(sPath);
var xhr = new XMLHttpRequest();
xhr.open("GET", sPath, 1);
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
if (xhr.responseText != "") {
sFileText = xhr.responseText;
//console.log(sFileText);
var val = JSON.parse(sFileText);
var i = 0;
var value = val.length;
for(var i in val)
{
var code = val[i].RTM_res_category_code;
var desc = val[i].RTM_res_category_edesc;
addReserv(code, desc);
}
if(i >= value-1) {
console.log("Reservation Load Completed... "+i);
document.getElementById("status").innerHTML = "Reservation Loading Success...";
}
}
}
}
xhr.send();
}
//Passing Parameters to Reservation
function addReserv(code, desc)
{
document.querySelector("#status").innerHTML = "Loading Reservation.. Please wait...";
var trans = db.transaction(["Reservation"], "readwrite");
var store = trans.objectStore("Reservation");
//console.log(store);
var reserv={ RTM_res_category_code : code, RTM_res_category_edesc : ''+desc+'' };
var request = store.add(reserv);
request.onerror = function(e) {
console.log(e.target.error.name);
document.querySelector("#status").innerHTML = e.target.error.name;
}
request.onsuccess = function(e) {
console.log("Reservation Saved Successfully.");
//document.querySelector("#status").innerHTML = "Reservation Loaded Successfully.";
}
}
Thanks for the question.
What you are currently doing works, but the alert comes to soon because of the async nature of the IDB.
What you should to avoid this.
1. Create your transaction only once.
2. Do all your operations in this one transaction.
3. The transaction object has an oncomplete callback you can use to notify the user.
Concrete on your example. Instead of looping over the items in the ajax callback, pass the collection to your add method and loop there
if (window.XMLHttpRequest) {
var sFileText;
var sPath = "IDBFiles/Reservation.json";
//console.log(sPath);
var xhr = new XMLHttpRequest();
xhr.open("GET", sPath, 1);
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
if (xhr.responseText != "") {
sFileText = xhr.responseText;
//console.log(sFileText);
var val = JSON.parse(sFileText);
import(val);
}
}
}
xhr.send();
}
function import(values)
{
document.querySelector("#status").innerHTML = "Loading Reservation.. Please wait...";
var trans = db.transaction(["Reservation"], "readwrite");
var store = trans.objectStore("Reservation");
var i = 0;
var value = val.length;
for(var i in val)
{
var code = val[i].RTM_res_category_code;
var desc = val[i].RTM_res_category_edesc;
var reserv={ RTM_res_category_code : code, RTM_res_category_edesc : ''+desc+'' };
var request = store.add(reserv);
request.onerror = function(e) {
console.log(e.target.error.name);
document.querySelector("#status").innerHTML = e.target.error.name;
}
request.onsuccess = function(e) {
console.log("Reservation Saved Successfully.");
//document.querySelector("#status").innerHTML = "Reservation Loaded Successfully.";
}
}
trans.oncomplete = function () {
console.log("Reservation Load Completed... "+i);
document.getElementById("status").innerHTML = "Reservation Loading Success...";
}
}

google maps api v2 map.removeOverlay() marker array issue

To start off with, I would like to say that I have been looking on the internet for a really long time and have been unable to find the answer, hence my question here.
My latest school project is to create an admin page for adding articles to a database, the articles are connected to a point on a google map. The requirement for adding the point on the map is that the user is able to click the map once and the marker is produced, if the map is clicked a second time the first marker is moved to the second location. (this is what I am struggling with.)
The problem is, as the code is now, I get the error that markersArray is undefined. If I place the var markersArray = new Array; underneath the eventListener then I get an error that there is something wrong the main.js (googles file) and markersArray[0] is undefined in the second if.
By the way, I have to use google maps API v2, even though it is old.
<script type="text/javascript">
//<![CDATA[
var map;
var markers = new Array;
function load() {
if (GBrowserIsCompatible()) {
this.counter = 0;
this.map = new GMap2(document.getElementById("map"));
this.map.addControl(new GSmallMapControl());
this.map.addControl(new GMapTypeControl());
this.map.setCenter(new GLatLng(57.668911, 15.203247), 7);
GDownloadUrl("genxml.php", function(data) {
var xml = GXml.parse(data);
var Articles = xml.documentElement.getElementsByTagName("article");
for (var i = 0; i < Articles.length; i++) {
var id = Articles[i].getAttribute("id");
var title = Articles[i].getAttribute("title");
var text = Articles[i].getAttribute("text");
var searchWord = Articles[i].getAttribute("searchWord");
var point = new GLatLng(parseFloat(Articles[i].getAttribute("lat")),
parseFloat(Articles[i].getAttribute("lng")));
var article = createMarker(point, id, title, text);
this.map.addOverlay(article);
}
});
}
var myEventListener = GEvent.bind(this.map,"click", this, function(overlay, latlng) {
if (this.counter == 0) {
if (latlng) {
var marker = new GMarker(latlng);
latlng1 = latlng;
this.map.addOverlay(marker);
this.counter++;
markers.push(marker); //This is where I get the error that markersArray is undefined.
}
}
else if (this.counter == 1) {
if (latlng){
alert (markers[0]);
this.map.removeOverlay(markers[0]);
var markers = [];
this.map.addOverlay(marker);
this.counter++;
}
}
});
}
function createMarker(point, id, title, text) {
var article = new GMarker(point);
var html = "<b>" + title + "</b> <br/>"
GEvent.addListener(article, 'click', function() {
window.location = "article.php?id=" + id;
});
return article;
}
I solved the problem. I'm not exactly sure why it worked but this is what it looks like now:
var markersArray = [];
function load() {
if (GBrowserIsCompatible()) {
this.counter = 0;
this.map = new GMap2(document.getElementById("map"));
this.map.addControl(new GSmallMapControl());
this.map.addControl(new GMapTypeControl());
this.map.setCenter(new GLatLng(57.668911, 15.203247), 7);
GDownloadUrl("genxml.php", function(data) {
var xml = GXml.parse(data);
var Articles = xml.documentElement.getElementsByTagName("article");
for (var i = 0; i < Articles.length; i++) {
var id = Articles[i].getAttribute("id");
var title = Articles[i].getAttribute("title");
var text = Articles[i].getAttribute("text");
var searchWord = Articles[i].getAttribute("searchWord");
var type = Articles[i].getAttribute("type");
var point = new GLatLng(parseFloat(Articles[i].getAttribute("lat")),
parseFloat(Articles[i].getAttribute("lng")));
var article = createMarker(point, id, title, text);
this.map.addOverlay(article);
}
});
}
var myEventListener = GEvent.bind(this.map,"click", this, function(overlay, latlng) {
var marker = new GMarker(latlng);
if (this.counter == 0) {
if (latlng) {
latlng1 = latlng;
this.map.addOverlay(marker);
markersArray.push(marker);
this.counter++;
}
}
else if (this.counter == 1) {
if (latlng){
this.map.removeOverlay(markersArray[0]);
this.map.addOverlay(marker);
this.counter++;
}
}
});
}
function createMarker(point, id, title, text) {
var article = new GMarker(point);
var html = "<b>" + title + "</b> <br/>"
GEvent.addListener(article, 'click', function() {
window.location = "article.php?id=" + id;
});
return article;
}