Generating JSON Object - javascript

I'm trying to parse the rows in a table that I generate using Javascript by adding items to a cart and then create a json object when the user hits save order of all the items and pass it to a php script using $.post in jQuery.
The only trouble I'm having is understanding JSON objects and how to push more items onto the object. I get an error in firebug telling me that devices[i] is undefined. Not really sure how else to accomplish this. I thought it was really just an array.
function Save()
{
var devices = new Object();
var i = 0;
$("#device_tbl tr:gt(0)").each(function(){
var manufid = $(this).find("td").eq(0).find(".manuf_id").html();
var modelid = $(this).find("td").eq(1).find(".model_id").html();
var condition = $(this).find("td").eq(2).find("select").val();
var carrier = $(this).find("td").eq(3).find("select").val();
var imei = $(this).find("td").eq(4).find("input").val();
var price = $(this).find("td").eq(5).html();
alert(manufid+"\n"+modelid+"\n"+carrier+"\n"+imei+"\n"+price);
devices[i].manufid = manufid;
devices[i].modelid = modelid;
devices[i].carrier = carrier;
devices[i].imei = imei;
devices[i].price = price;
i++;
});
document.write(devices); //just for debugging
$("#final").show();
}

You currently have devices declared as an object, but you're treating it like an array.
You need to declare it as an array of objects.
function Save()
{
var devices = new Array();
var i = 0;
$("#device_tbl tr:gt(0)").each(function(){
var manufid = $(this).find("td").eq(0).find(".manuf_id").html();
var modelid = $(this).find("td").eq(1).find(".model_id").html();
var condition = $(this).find("td").eq(2).find("select").val();
var carrier = $(this).find("td").eq(3).find("select").val();
var imei = $(this).find("td").eq(4).find("input").val();
var price = $(this).find("td").eq(5).html();
alert(manufid+"\n"+modelid+"\n"+carrier+"\n"+imei+"\n"+price);
devices[i] = new Object();
devices[i].manufid = manufid;
devices[i].modelid = modelid;
devices[i].carrier = carrier;
devices[i].imei = imei;
devices[i].price = price;
i++;
});
document.write(devices); //just for debugging
$("#final").show();
}
or something like that.
(Updated to show it in your code)

Related

How do I use two variables in my function?

So I have multiple script. One script retrieves data from a Googlesheet and parses it as JSON. The other one uses this to output it to HTML.
My first:
function getStatistics() {
var sheet = SpreadsheetApp.openById("ID");
var rowsData = sheet.getRange("A:A").getValues();
var result = JSON.stringify(rowsData);
var funcNumber = 1;
return result;
}
This retrieves the data from a spreadsheet in column A.
The second script, here I want to use both 'Result' and 'Funcnumber' in my function.
function onSuccess(data, funcNumber) {
var dataJson = JSON.parse(data);
var newColumn = document.createElement("div");
newColumn.className = "column";
for(var i = 0; i < dataJson.length; i++) {
if (dataJson[i] != "") {
var div = document.getElementById('cont-' + funcNumber);
var newDiv = document.createElement("div");
newDiv.innerHTML = dataJson[i];
newColumn.appendChild(newDiv);
}
}
div.appendChild(newColumn);
}
Using the Json result to PARSE the HTML works. But retrieving 'funcNumber' from the function not. Then finally I call the first function with this line:
google.script.run.withSuccessHandler(onSuccess).getStatistics();
Does anybody know how to use both result and funcNumber in my second function?
function getStatistics() {
var ss = SpreadsheetApp.openById("ID");
const sheet = ss.getSheetByName('Sheet1');
let result = {data:JSON.stringify(sheet.getRange(1,1,sheet.getLastRow(),1).getValues()),funcNumber:1}
return result;
}
function onSuccess(obj) {
var dataJson = JSON.parse(obj.data).flat();
var newColumn = document.createElement("div");
newColumn.className = "column";
for (var i = 0; i < dataJson.length; i++) {
if (dataJson[i] != "") {
var div = document.getElementById('cont-' + obj.funcNumber);
var newDiv = document.createElement("div");
newDiv.innerHTML = dataJson[i];
newColumn.appendChild(newDiv);
}
}
div.appendChild(newColumn);
}
A single column or row is still a 2d array
Following is the way to make the call in Google script to return the value for the 2nd parameter.
google.script.run
.withSuccessHandler(onSuccess)
.withUserObject(funcNumber)
.getStatistics()
WithUserObject() needs to be called after the withSuccessHandler.
See the documentation below on Google script
withUserObject(object)
Sets an object to pass as a second parameter to the success and failure handlers. This "user object" — not to be confused with the User class — lets the callback functions respond to the context in which the client contacted the server. Because user objects are not sent to the server, they are not subject to the restrictions on parameters and return values for server calls. User objects cannot, however, be objects constructed with the new operator.

javascript 'object object' from localstorage

I am getting an alert saying [object] object when I execute showlogsf function
var fdata = {fidval, fweightval, feggslaidval, fgraineatenval, fwaterval};
var fidval = document.getElementById('#fid');
var fweightval = document.getElementById('#fweight');
var feggslaidval = document.getElementById('#feggslaid');
var fgraineatenval = document.getElementById('#fgraineaten');
var fwaterval = document.getElementById('#fwater');
These are the two functions that could be triggered from button click
$('#submitf').click(function (){
localStorage.setItem ("fdatak", JSON.stringify(fdata));
});
$('#showlogsf').click(function(){
var fdataload = JSON.parse(localStorage.getItem("fdatak"));
alert(fdataload);
});
});
You're pushing an object as an alert. the HTML displays this as [object Object]. You have to address the actual properties of this object, so:
$('#showlogsf').click(function(){
var fdataload = JSON.parse(localStorage.getItem("fdatak"));
alert(fdataload.fidval);
alert(fdataload.fweightval);
alert(fdataload.feggslaidval);
// etc etc...
});
EDIT: Seems like you're also saving the document element, rather than the value. I assume the fdataload.properties are actual values, you should either grab the raw HTML data or input value of this instead of the HTML element itself
I guess your fdata is an array right?.
Try this var fdata = [fidval, fweightval, feggslaidval, fgraineatenval, fwaterval];
I edited values of array as xxx.value instead of xxx
var fdata = new Array();
$('#submitf').click(function (){
var fidval = document.getElementById('fid');
var fweightval = document.getElementById('fweight');
var feggslaidval = document.getElementById('feggslaid');
var fgraineatenval = document.getElementById('fgraineaten');
var fwaterval = document.getElementById('fwater');
var fdata = [];
like this
fdata.push (fidval.value, fweightval.value, feggslaidval.value, fgraineatenval.value, fwaterval.value);
localStorage.setItem ("fdata", JSON.stringify(fdata));
});
$('#showlogsf').click(function(){
var fdataload = JSON.parse(localStorage.getItem('fdata'));
document.getElementById("flogview").innerHTML = fdataload;
});
Now it saves but I have another problem, why it is replacing data every time I click showlogsf button??

Passing array from php to javascript through ajax response

This is my first post in stackoverflow. I have always got my answers from previously posted questions. This problem has been bugging me and all the solutions I tried have not worked.
I have a js function which makes an ajax request to get weather info of town passed:
var _getWeatherInfo = function(ntown){
var town = ntown;
var url = "PHP/weather.php?town=" + town;
request1.onreadystatechange = _refreshWeatherList();
request1.open("GET", url, true);
request1.send("");
}
I am using the following php code to return the sql results stored in array:
<?php
//Connection to the database
$mysql = mysql_connect("localhost","xuvaz","x");
//Selecting Database
$db = mysql_select_db("weather");
$town = $_GET['town'];
$tarray = array();
$sql1= mysql_query("SELECT * FROM weather WHERE town='$town'");
while($row = mysql_fetch_assoc($sql1)) {
$tarray = array('town' => $row['town'],'outlook' => $row['outlook']);
}
echo json_encode($tarray);
?>
Then I have a function that is called when the request is completed:
var _refreshWeatherList = function() {
var weather_info = request1.responseText;
for(var i = 0; i < weather_info.length; i++){
var wtown = weather_info[i].town;
var woutlook = weather_info[i].outlook;
var wmin = weather_info[i].min_temp;
var wmax = weather_info[i].max_temp;
}
var wLine = new WLine(wtown, woutlook, wmin, wmax);
_weather.push(wLine);
_refreshWeatherDisplay();
}
The problem is I cant access the array values.
I can see the values as {"town":"Christchurch","outlook":"fine"} in firebug under response.
Even when I use JSON parse it gives error in the firebug , JSON.parse: unexpected end of data. If
I can just access the data my whole project would be completed.
Your PHP code is returning an object (last row from your loop) rather than an array of objects, but your JavaScript is expecting an array.
Change your PHP to the following to appand to $tarray:
while($row = mysql_fetch_assoc($sql1)) {
$tarray[] = array('town' => $row['town'],'outlook' => $row['outlook']);
}
Your JavaScript needs to wait for readyState = Loaded and JSON-decode the responseText:
var _refreshWeatherList = function() {
if(request1.readyState == 4) {
var weather_info = JSON.parse(request1.responseText);
....
}
}
If the parse is failing, trying logging it to the console to make sure the PHP isn't returning extra characters.
var _refreshWeatherList = function() {
var weather_info = eval("("+request1.responseText+")");
for(var i = 0; i < weather_info.length; i++){
var wtown = weather_info[i].town;
var woutlook = weather_info[i].outlook;
var wmin = weather_info[i].min_temp;
var wmax = weather_info[i].max_temp;
}
var wLine = new WLine(wtown, woutlook, wmin, wmax);
_weather.push(wLine);
_refreshWeatherDisplay();}
'request1.responseText' must be 'object' use eval() --! my english not well
Thank you for all your help. I found the fault. I forgot to include these two lines.
if (request1.readyState == 4) {
if (request1.status == 200){

Javascript to Read/Count Sharepoint 2010 List Items

I am having a lot of trouble with this. Essentially, I am trying to count the number of times Decommission appears in a particular list column. From what I can tell, the javascript is correct, but it doesn't work. Can anyone provide some guidance? Thanks!
<script type="text/javascript">
var myItems = null;
var siteUrl = &apos;https://chartiscorp.sp.ex3.secureserver.net/&apos;
function SuperDuper()
{
var queryString = &apos;<View><Query><Where><Gt><FieldRef name="End State" /><Value Type="String">Decommission</Value></Gt></Where></Query></View>&apos;;
var myContext = new SP.ClientContext(siteUrl);
var myWeb = myContext.get_web();
var myList = myWeb.get_lists().getByTitle(&apos;System_Information&apos;);
var myQuery = new SP.CamlQuery();
myQuery.set_viewXml(queryString);
myItems = myList.getItems(myQuery);
myContext.load(myItems,&apos;Includes(End State)&apos;);
myContext.executeQueryAsynch(Function.createDelegate(this,SuperDuperSuccess),Function.createDelegate(this,SuperDuperFail));
}
function SuperDuperFail(sender, args)
{
alert(&apos;Failed &apos; + args.get_message());
}
function SuperDuperSuccess(sender, args)
{
var endStateEnumerator = myItems.getEnumerator();
var decommCount = 0;
while(endStateEnumerator.moveNext())
{
//var currentEndState = endStateEnumerator.get_current();
decommCount = decommCount + 1;
}
alert(decommCount);
}
window.onload = SuperDuper;
</script>
What is the error?
Have you tried to see the script error it is throwing?
In function SuperDuperSuccess() you can simply put
var count=0;
count=this.myItems.get_count();
No need to write while loop .
Pls try to put alert and after some line and see what is coming.

Javascript: creating dynamic variables and object names. / html5 localstorage

I'm working on a form that is saved by HTML5 local storage.
When pressing save:
function saveAll(){
var field1 = document.getElementById('field1').value;
localStorage.setItem('con_field1',field1);
var field2 = document.getElementById('field2').value;
localStorage.setItem('con_field2',field2);
var field3 = document.getElementById('field3').value;
localStorage.setItem('con_field3',field3);
var field4 = document.getElementById('field4').value;
localStorage.setItem('con_field4',field4);
var field5 = document.getElementById('field5').value;
localStorage.setItem('con_field5',field5);
var field6 = document.getElementById('field6').value;
localStorage.setItem('con_field6',field6);
}
And when loading the page (fills out the forms):
function ShowAll() {
var field1 = localStorage.getItem('con_field1');
document.conditioning.field1.value = field1;
var field2 = localStorage.getItem('con_field2');
document.conditioning.field2.value = field2;
var field3 = localStorage.getItem('con_field3');
document.conditioning.field3.value = field3;
var field4 = localStorage.getItem('con_field4');
document.conditioning.field4.value = field4;
var field5 = localStorage.getItem('con_field5');
document.conditioning.field5.value = field5;
var field6 = localStorage.getItem('con_field6');
document.conditioning.field6.value = field6;
}
This all works fine, but I want to re-write this in a more fancy and efficient way. I was thinking of something like this:
function ShowAll() {
var field = [];
for (i=0; i<6; i++) {
field[i] = localStorage.getItem(window['con_field' + i]);
document.purpose.field[i].value = window['con_field' + i]
}
}
But the browser is not enjoying this. Basically I need to create a loop that automatically changes the "field" name in to 'field1, field2, field3' etc. The window thing is working, but I'm just using it wrong.
Anyone has an idea?
Thanks a lot!
function showAll(t1,c1,d1) {
var field1 = localStorage.getItem('con_field1');
console.log(field1)
var field2 = localStorage.getItem('con_field2');
var field3 = localStorage.getItem('con_field3');
}
You should add all of your data to one object, stringify it, then add that to local storage under a single key.
When you load it, grab the one local storage item, parse it, then access the properties on the object.
e.g.
var save = function () {
var data = {
foo: 'bar'
};
localStorage.setItem('myData', JSON.stringify(data));
};
var load = function () {
var data = JSON.parse(localStorage.getItem('myData'));
var someProp = data.foo; // gives you 'bar'
};
It looks like your main problem is that the fields are indexed beginning with 1, but your loop indexes from 0.
What about this?
var field = [];
for (i = 1; i <= 6; i++)
{
field[i] = localStorage.getItem(window['con_field' + i]);
document.purpose.field[i].value = window['con_field' + i]
}
Also, I'm not 100% on this, but I think using document.getElementByID is more cross-browser compatible than using bracket notation on the window object, but it's been a while since I wrote plain vanilla JS, so don't quote me.
I would try document.purpose["field" + i].value = window['con_field' + i].

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