I have been trying to write a protractor test that selects an item from a custom dropdown menu. The only problem is that when it tries to click an element other than the last one in the list it hangs and timesout. When I remove the click() method invocation it seems to work fine. Since all these calls are done asynchronously I also don't see a way of stopping the loop when it finds the element. My code looks like this:
var it = null;
for(var i = 1; i <= totalNumberOfAccounts; i++) {
var listItemLocator = '//div[#id="payment-accounts"]/div/ul/li[' + i + ']/label/div/div[2]/div[2]/span[2]';
var item = browser.driver.findElement(protractor.By.xpath(listItemLocator));
item.getText().then(function(value) {
if(value === accountNumber) {
it = item;
}
console.log(value);
})
.then(function clickOption() {
console.log('Clicking...');
if (it) {
console.log('Clicking desired item');
it.click();
console.log('Clicked..');
}
})
}
I also tried this approach:
this.selectRichSelectOption = function (selector, item) {
var selectList = browser.driver.findElement(selector);
selectList.click();
var desiredOption = '';
var i = 1;
selectList.findElements(protractor.By.tagName('li'))
.then(function findMatchingOption(options) {
console.log(options);
options.some(function (option) {
console.log('Option:');
console.log(option);
var listItemLocator = '//div[#id="payment-accounts"]/div/ul/li[' + i + ']/label/div/div[2]/div[2]/span[2]';
console.log(listItemLocator);
var element = option.findElement(protractor.By.xpath('//label/div/div[2]/div[2]/span[2]'));
console.log('Element:');
console.log(element);
i++;
element.getText().then(function (value) {
console.log('Value: ' + value);
console.log('Item:');
console.log(item);
if (item === value) {
console.log('Found option..');
desiredOption = option;
return true;
}
return false;
});
});
})
.then(function clickOption() {
console.log('Click option');
console.log(desiredOption);
if (desiredOption) {
console.log('About to click..');
desiredOption.click();
}
});
};
The result of this one is even more strange. Now all of a sudden the getText() method invocation returns an empty String. But when I try to retrieve the e.g. the class attribute I get the correct value back. Where did the Text value go?
Can somebody please help me out?
This seems to be an issue with page load. After you select, the page does not load completely.
Try using a browser.sleep(timeInMs);
try using node 8+'s async functions such as await. I went through this headache and it was solved by awaiting for certain things to appear or have certain attributes.
await browser.wait(EC.presenceOf(element(by.xpath('path leading to element based off attribute'))))
Good luck
Related
i have a partial view "_SearchPanel" that has year list dropdown, a classes multiselect control, (some other drop downs - ommitted) and a search button.
I want that when i change selection in year list drop down, only my classes list is refreshed/updated, and not the whole partial view on page.
So i use a JsonResult action in my controller (as opposed to the first time load)
public JsonResult BindClasses(int yearId)
{
ClassRepository repClass = new ClassRepository("name=ge");
YearRepository repYear = new YearRepository("name=ge");
var dataClass = repClass.GetClassesByYear(yearId);
var groupedClassOptions = dataClass.GroupBy(x => x.grade).Select(x => new OptionGroupVM()
{
GroupName = "Grade " + x.Key.ToString(),
Options = x.Select(y => new OptionVM()
{
Value = y.classID.ToString(),
Text = y.classname
})
});
return Json(groupedClassOptions);
}
My javascript
var dropDownYear = $('#ddlYear');
dropDownYear.change(function(){
$("#classList").load(url, {yearId: $(this).val()}, function(result){
setOptions($('#classList'), #Html.Raw(Json.Encode(new List<int>(){})), result);
});
});
now the problem is this result is not considered as an object as was the first time (onpageload) here:
jQuery(function ($) {
setOptions($('#classList'), #Html.Raw(Json.Encode(Model.SelectedClasses)), #Html.Raw(Json.Encode(Model.ClassOptions)));
}
How do i correct/cast it to be considered as Model.ClassOptions(type: GroupOptionsVM List) object instead of a Json
What I have tried
var url = '#Url.Action("BindClasses", "Maps")';
var dropDownYear = $('#ddlYear');
dropDownYear.change(function(){
$("#classList").load(url, {yearId: $(this).val()}, function(result){
#{var x = new List<OptionGroupVM>();}
x = result;
setOptions($('#classList'), #Html.Raw(Json.Encode(new List<int>(){})), x);
});
});
this gives me some syntax errors!!
UPDATE
[Referring to the previous question Stephen linked in comments]
Since i had to do it for two dropdown lists with slight difference i had created setOptions function in my script
function setOptions(listBox, selected, groups) {
// Generate options
createGroupedOptions(listBox, selected, groups);
// Attach plug-in
listBox.multiselect({ enableClickableOptGroups: true, onChange: function(){
var selectedClassItems = this.$select.val();
} });
}
function createGroupedOptions(element, selected, groups) {
for (var i = 0; i < groups.length; i++) {
var group = groups[i];
var groupElement = $('<optgroup></optgroup>').attr('label', group.GroupName);
for (var j = 0; j < group.Options.length; j++) {
var option = group.Options[j];
var optionElement = $('<option></option>').val(option.Value).text(option.Text);
if (selected) {
if (selected.toString().indexOf(option.Value) >= 0) {
optionElement.attr('selected', 'selected')
}
} else {
if (option.IsSelected) {
optionElement.attr('selected', 'selected')
}
}
$(groupElement).append(optionElement);
}
$(element).append(groupElement);
}
}
CALLING setOptions function
setOptions($('#classList'), #Html.Raw(Json.Encode(Model.SelectedClasses)), #Html.Raw(Json.Encode(Model.ClassOptions)));
setOptions($('#indicatorList'), #Html.Raw(Json.Encode(Model.SelectedIndicators)), #Html.Raw(Json.Encode(Model.IndicatorOptions)));
Your returning json, so using .load() makes no sense (you would typically use that when the method your calling returns a partial view).
Change your script to create the <optgroup> and <option> elements based on your data your method returns
var url = '#Url.Action("BindClasses", "Maps")';
var dropDownYear = $('#ddlYear');
dropDownYear.change(function() {
$.post(url, { yearId: $(this).val() }, function(data) {
$.each(data, function(index, item) {
var group = item.GroupName;
// use the above to build your <optgroup> element
$.each(item.Options, function(index, item) {
var value = item.Value;
var text = item.Text;
// use the above to build your <option> elements and append to the <optgroup> element
});
// append the <optgroup> to the <select id="classList"> element
});
});
});
Note the details of the code for generating the elements are in the answer to your previous question
You are trying to mix client side code (jQuery) with server side code (.NET) and it won't work. #Html.Raw and JsonEncode are server side methods. You can't use them after the page loads.
In essence, you need to either use jQuery for all of your page interaction and manage the state of the page on the client side or use full MVC (postback) and do everything on the server.
There are technically other options but I just wanted to address the fundamental issue with what you have tried so far.
I have scoured the other question/answer for this and implemented everything and I still cannot access the values of the object. Here's the code I am using:
function apply_voucher(voucher) {
var dates = $.parseJSON($("[name='dates']").val());
var voucher_yes_no = new Array();
var voucher_reduction = new Array();
if(voucher.length > 0)
{
$.each(dates, function(room_id, these_dates) {
$.post('/multiroom/check_voucher/'+voucher+'/'+room_id, function(result) {
if(result.result == 'ok') {
voucher_yes_no.push('yes');
voucher_reduction.push(result.voucher_reduction);
} else {
voucher_yes_no.push('no');
}
}, 'json');
});
// check if there are any yes's in the array
if('yes' in voucher_yes_no) {
console.log("no yes's");
} else {
console.log(voucher_reduction);
console.log(typeof voucher_reduction);
for (var prop in voucher_reduction) {
console.log(prop);
console.log(voucher_reduction[prop]);
if (voucher_reduction.hasOwnProperty(prop)) {
console.log("prop: " + prop + " value: " + voucher_reduction[prop]);
}
}
}
}
}
Apologies for the constant console logging - I'm just trying to track everything to make sure it's all doing what it should. The console output I get from this is below:
...which shows the object containing one value, "1.01" and my console.log of the typeof it to make sure it is actually an object (as I thought I was going mad at one point). After this there is nothing from inside the for-in loop. I have tried jquery's $.each() also to no avail. I can't understand why nothing I'm trying is working!
It does not work because the Ajax call is asynchronous!
You are reading the values BEFORE it is populated!
Move the code in and watch it magically start working since it will run after you actually populate the Array!
function apply_voucher(voucher) {
var room_id = "169";
var dates = $.parseJSON($("[name='dates']").val());
var voucher_reduction = new Array();
$.post('/multiroom/check_voucher/'+voucher+'/'+room_id, function(result) {
if(result.result == 'ok') {
voucher_reduction.push(result.voucher_reduction);
}
console.log(voucher_reduction);
console.log(typeof voucher_reduction);
for (var prop in voucher_reduction) {
console.log(prop);
console.log(voucher_reduction[prop]);
if (voucher_reduction.hasOwnProperty(prop)) {
console.log("prop: " + prop + " value: " + voucher_reduction[prop]);
}
}
}, 'json');
}
From what it looks like, you plan on making that Ajax call in a loop. For this you need to wait for all of the requests to be done. You need to use when() and then(). It is answered in another question: https://stackoverflow.com/a/9865124/14104
Just to say for future viewers that changing the way I did this to use proper deferred objects and promises, which blew my head up for a while, but I got there! Thanks for all the help, particularly #epascarello for pointing me in the right direction :) As soon as I started doing it this way the arrays began behaving like arrays again as well, hooray!
Here's the final code:
function apply_voucher(voucher) {
var booking_id = $("[name='booking_id']").val();
var dates = $.parseJSON($("[name='dates']").val());
if(voucher.length > 0) {
var data = []; // the ids coming back from serviceA
var deferredA = blah(data, voucher, dates); // has to add the ids to data
deferredA.done(function() { // if blah successful...
var voucher_yes_no = data[0];
var voucher_reduction = data[1];
if(voucher_yes_no.indexOf("yes") !== -1)
{
console.log("at least one yes!");
// change value of voucher_reduction field
var reduction_total = 0;
for(var i = 0; i < voucher_reduction.length; i++) {
reduction_total += voucher_reduction[i];
}
console.log(reduction_total);
}
else
{
console.log("there are no yes's");
}
});
}
}
function blah(data, voucher, dates) {
var dfd = $.Deferred();
var voucher_yes_no = new Array();
var voucher_reduction = new Array();
var cycles = 0;
var dates_length = 0;
for(var prop in dates) {
++dates_length;
}
$.each(dates, function(room_id, these_dates) {
$.post('/multiroom/check_voucher/'+voucher+'/'+room_id, function(result) {
if(result.result == 'ok') {
voucher_reduction.push(result.voucher_reduction);
voucher_yes_no.push('yes');
} else {
voucher_yes_no.push('no');
}
++cycles;
if(cycles == dates_length) {
data.push(voucher_yes_no);
data.push(voucher_reduction);
dfd.resolve();
}
}, 'json');
});
return dfd.promise();
}
Can you show how voucher_reduction is defined?
I am wondering where the second line of the debug output comes from, the one starting with '0'.
in this line:
console.log(vouncher_reduction[prop]);
^
The name of the variable is wrong (then) and probably that is breaking your code.
I think there are no problem with your loop.
But perhaps with your object.
Are you sure what properties has enumerable ?
Try to execute this to check :
Object.getOwnPropertyDescriptor(voucher_reduction,'0');
If it return undefined, the property was not exist.
What I have is simple CRUD operation. Items are listed on page, when user clicks button add, modal pops up, user enters data, and data is saved and should automatically (without refresh)be added to the list on page.
Service:
getAllIncluding: function(controllerAction, including) {
var query = breeze.EntityQuery.from(controllerAction).expand(including);
return manager.executeQuery(query).fail(getFailed);
},
addExerciseAndCategories: function(data, initialValues) {
var addedExercise = manager.createEntity("Exercise", initialValues);
_.forEach(data, function(item) {
manager.createEntity("ExerciseAndCategory", { ExerciseId: addedExercise._backingStore.ExerciseId, CategoryId: item.CategoryId });
});
saveChanges().fail(addFailed);
function addFailed() {
removeItem(items, item);
}
},
Controller:
$scope.getAllExercisesAndCategories = function() {
adminCrudService.getAllIncluding("ExercisesAndCategories", "Exercise,ExerciseCategory")
.then(querySucceeded)
.fail(queryFailed);
};
function querySucceeded(data) {
$scope.queryItems = adminCrudService.querySucceeded(data);
var exerciseIds = _($scope.queryItems).pluck('ExerciseId').uniq().valueOf();
$scope.exerciseAndCategories = [];
var createItem = function (id, exercise) {
return {
ExerciseId: id,
Exercise : exercise,
ExerciseCategories: []
};
};
// cycle through ids
_.forEach(exerciseIds, function (id) {
// get all the queryItems that match
var temp = _.where($scope.queryItems, {
'ExerciseId': id
});
// go to the next if nothing was found.
if (!temp.length) return;
// create a new (clean) item
var newItem = createItem(temp[0].ExerciseId, temp[0].Exercise);
// loop through the queryItems that matched
_.forEach(temp, function (i) {
// if the category has not been added , add it.
if (_.indexOf(newItem.ExerciseCategories, i.ExerciseCategory) < 0) {
newItem.ExerciseCategories.push(i.ExerciseCategory);
}
});
// Add the item to the collection
$scope.items.push(newItem);
});
$scope.$apply();
}
Here is how I add new data from controller:
adminCrudService.addExerciseAndCategories($scope.selectedCategories, { Name: $scope.NewName, Description: $scope.NewDesc });
So my question is, why list isn't updated in real time (when I hit save I must refresh page).
EDIT
Here is my querySuceeded
querySucceeded: function (data) {
items = [];
data.results.forEach(function(item) {
items.push(item);
});
return items;
}
EDIT 2
I believe I've narrowed my problem !
So PW Kad lost two hours with me trying to help me to fix this thing (ad I thank him very very very much for that), but unfortunately with no success. We mostly tried to fix my service, so when I returned to my PC, I've again tried to fix it. I believe my service is fine. (I've made some changes as Kad suggested in his answer).
I believe problem is in controller, I've logged $scope.items, and when I add new item they don't change, after that I've logged $scope.queryItems, and I've noticed that they change after adding new item (without refresh ofc.). So probably problem will be solved by somehow $watching $scope.queryItems after loading initial data, but at the moment I'm not quite sure how to do this.
Alright, I am going to post an answer that should guide you on how to tackle your issue. The issue does not appear to be with Breeze, nor with Angular, but the manner in which you have married the two up. I say this because it is important to understand what you are doing in order to understand the debug process.
Creating an entity adds it to the cache with an entityState of isAdded - that is a true statement, don't think otherwise.
Now for your code...
You don't have to chain your query execution with a promise, but in your case you are returning the data to your controller, and then passing it right back into some function in your service, which wasn't listed in your question. I added a function to replicate what yours probably looks like.
getAllIncluding: function(controllerAction, including) {
var query = breeze.EntityQuery.from(controllerAction).expand(including);
return manager.executeQuery(query).then(querySucceeded).fail(getFailed);
function querySucceeded(data) {
return data.results;
}
},
Now in your controller simply handle the results -
$scope.getAllExercisesAndCategories = function() {
adminCrudService.getAllIncluding("ExercisesAndCategories", "Exercise,ExerciseCategory")
.then(querySucceeded)
.fail(queryFailed);
};
function querySucceeded(data) {
// Set your object directly to the data.results, because that is what we are returning from the service
$scope.queryItems = data;
$scope.exerciseAndCategories = [];
Last, let's add the properties we create the entity and see if that gives Angular a chance to bind up properly -
_.forEach(data, function(item) {
var e = manager.createEntity("ExerciseAndCategory");
e.Exercise = addedExercise; e.Category: item.Category;
});
So I've managed to solve my problem ! Not sure if this is right solution but it works now.
I've moved everything to my service, which now looks like this:
function addCategoriesToExercise(tempdata) {
var dataToReturn = [];
var exerciseIds = _(tempdata).pluck('ExerciseId').uniq().valueOf();
var createItem = function (id, exercise) {
return {
ExerciseId: id,
Exercise: exercise,
ExerciseCategories: []
};
};
// cycle through ids
_.forEach(exerciseIds, function (id) {
// get all the queryItems that match
var temp = _.where(tempdata, {
'ExerciseId': id
});
// go to the next if nothing was found.
if (!temp.length) return;
// create a new (clean) item
var newItem = createItem(temp[0].ExerciseId, temp[0].Exercise);
// loop through the queryItems that matched
_.forEach(temp, function (i) {
// if the category has not been added , add it.
if (_.indexOf(newItem.ExerciseCategories, i.ExerciseCategory) < 0) {
newItem.ExerciseCategories.push(i.ExerciseCategory);
}
});
// Add the item to the collection
dataToReturn.push(newItem);
});
return dataToReturn;
}
addExerciseAndCategories: function (data, initialValues) {
newItems = [];
var addedExercise = manager.createEntity("Exercise", initialValues);
_.forEach(data, function (item) {
var entity = manager.createEntity("ExerciseAndCategory", { ExerciseId: addedExercise._backingStore.ExerciseId, CategoryId: item.CategoryId });
items.push(entity);
newItems.push(entity);
});
saveChanges().fail(addFailed);
var itemsToAdd = addCategoriesToExercise(newItems);
_.forEach(itemsToAdd, function (item) {
exerciseAndCategories.push(item);
});
function addFailed() {
removeItem(items, item);
}
}
getAllExercisesAndCategories: function () {
var query = breeze.EntityQuery.from("ExercisesAndCategories").expand("Exercise,ExerciseCategory");
return manager.executeQuery(query).then(getSuceeded).fail(getFailed);
},
function getSuceeded(data) {
items = [];
data.results.forEach(function (item) {
items.push(item);
});
exerciseAndCategories = addCategoriesToExercise(items);
return exerciseAndCategories;
}
And in controller I have only this:
$scope.getAllExercisesAndCategories = function () {
adminExerciseService.getAllExercisesAndCategories()
.then(querySucceeded)
.fail(queryFailed);
};
function querySucceeded(data) {
$scope.items = data;
$scope.$apply();
}
Sorry for the lack of description in title, it's difficult to explain.
So I have a simple signup page and I made a bunch of functions in my code that check things such as the username length, make sure the passwords match, etc..
The problem is, if there is more than one error in the users input, it only displays one error at the bottom.
HEre is the JSfiddle: http://jsfiddle.net/LCBradley3k/xqcJS/19/
Javascript:
$('#join').on('click', function () {
var correct = true;
$('input[type="text"], input[type="password"]').each(function (indx) {
var $currentField = $(this);
if ($currentField.val() === '') {
$currentField.addClass('empty');
correct = false;
$currentField.one('keydown', function () {
$currentField.removeClass('empty');
});
} else {
$currentField.removeClass('empty');
}
});
function userLength() {
var x = $('input[name="user"]').val();
if (x.length < 6) {
$('#answer').html('Less than six characters.');
$('input[name="user"]').addClass('empty');
return false;
} else {
return true;
}
}
function passwordCheck() {
var x = $('input[name="password"]').val();
var y = $('input[name="passwordcheck"]').val();
if (x === y) {
return true;
} else {
$('#answer').html('Two different passwords');
$('input[name="password"], input[name="passwordcheck"]').addClass('empty');
return false;
}
}
function validateForm() {
var x = $('input[name="email"]').val();
if (x.indexOf('#') !== -1 && x.lastIndexOf(".") !== -1) {
return true;
} else {
$('#answer').html('Not a valid email');
$('input[name="email"]').addClass('empty');
return false;
}
}
if (correct) {
if (userLength()) {
if (passwordCheck()) {
if (validateForm()) {
$('#answer').html('Thank You!');
setTimeout(function () {
$('.inputs').hide("slide", {
direction: "up"
}, 1000);
}, 2000);
}
}
}
} else {
$('#answer').html('Please fill highlighted fields.');
}
});
You can see that all of them edit the #('#answer') div with .html(). But only one is displayed when there is more than one error. Once that error is fixed and the button is pressed, it will then display the next error. I want them all to be displayed in a list.
I created a fiddle that may be of some help. The idea is to create an array with the errors in it like so:
var errors = [];
errors.push("Error 1");
errors.push("Error 2");
As you step through the validation, every time an error is encountered you simply push the error string onto the array. When you get to the end of the validation you need to compile these errors into html like that can be appended to your $('#answer') element. In this case the items are compiled into an unordered list. You can change this to fit your needs.
var content = "<ul>";
for(var a = 0, len = errors.length; a < len; a++) {
content += "<li>" + errors[a] + "</li>";
}
content += "</ul>";
$('#answer').html(content);
The html is built dynamically and stored in the variable content. content is then appended to your html element that displays the errors (in your case answer).
You have 2 issues with doing what you want.
First, you are only continuing your checks if the first one passes, due to your nested if statements.
Second, you are replacing the #answer html with the message, which means even if you do each check, you will only see the results of the last one.
A simple fix would be to un-nest your if statements, and keep a variable that tracks the overall pass state. Secondly, instead of using .html(), use .append(), but make sure to clear out #answer before starting your checks.
correct &= checkFilled();
correct &= userLength();
correct &= passwordCheck();
correct &= validateForm();
if (correct) {
// ...
}
Fiddle: http://jsfiddle.net/jtbowden/9cFKW/
Note: I made your form filled check it's own function to work better with this method.
You can do some more fancy things, like pushing error messages on an array, and then checking the array for errors at the end and appending all of the messages, but this should get you started.
I have a very strange issue that I am running into. I am using jsTree from JQueryUI on one of my sites, and I have different implementations of it used in different .js files. One of them seems to work, which is very confusing as it uses almost identical code (only the variable names are different) to the implementation that is broken. The problem comes from the contextmenu function. The code I am using is as follows:
$(document).ready(function () {
if(typeof dryerList == 'undefined' || dryerList.length == 0) {
var dryerList = [];
$.ajax({
url:'../TrackingApp/getGrainBins.php?t=234.23423452353',
async: false,
success: function(text) {
try {
dryerList = $.parseJSON(text);
} catch (e) {
alert('ERROR: ' + e);
}
if(dryerList.length == 0) {
alert('ERROR: No fleet data received.')
}
}
});
}
$("#dryerListTree").jstree({
plugins : ['json_data', 'ui', 'themes', 'contextmenu'],
contextmenu: {items: customBinMenu},
json_data : { data: binNodes }
});
$('#dryerListTree').bind("dblclick.jstree", function (event) {
var node = $(event.target).closest("li");
var id = node[0].id;
for(i=0; i < dryerList.length; i++) {
if(id == dryerList[i].id) {
centerMap(dryerList[i].y, dryerList[i].x);
break;
}
}
});
});
function customBinMenu(node) {
if ($(node).hasClass("folder")) {
return;
}
var items = {
centerItem: {
label: "Locate",
action: function () {
// Centers map on selected bin
var id = node[0].id;
for(i=0; i < dryerList.length; i++) {
if(id == dryerList[i].id) {
centerMap(dryerList[i].y, dryerList[i].x);
break;
}
}
}
},
dashboardItem: {
label: "Dashboard",
action: function () {
// Opens dryer info window over map
var id = node[0].id;
var dryerIndex = -1;
for(i=0; i < dryerList.length; i++) {
if(id == dryerList[i].id) {
dryerIndex = i;
break;
}
}
}
}
};
return items;
}
The strange bit is, the double-click handler works just fine. When I get to the customBinMenu() function, the dryerList array is there, and dryerList[0] contains 4 of the 5 values that it should- but somehow the 'id' element has been dropped from that object. I have been looking at this for quite some time, and I can't figure out how it can drop a single element from the object without losing any other data, especially when identical code is working for a similar list. Any suggestions?
Ok, I read in your question: 'and dryerList[0] contains 4 of the 5 values that it should- but somehow the 'id' element has been dropped from that object'
So by 'element' and 'value' I assume you mean 'attribute': the node's 'id'-attribute to be precise ??
I see in your code: var id = node[0].id;
That should be: var id = node[0].getAttribute("id");
Good luck!
UPDATE 1:
Ok, if (as per your comment) var id = node[0].id; (getting id from node[0]) is ok, then if(id == dryerList[i].id) looks wrong, since you just (re-)defined id to be the value of node[0]'s id.
Actually I would not use 'id' as a var-name (in this case).
So what if you did: var idc = node[0].getAttribute("id");
and then: if(idc === dryerList[i].getAttribute("id"))
UPDATE 5: You still have some errors by the way:
You forgot a semi-colon to close the alert in:
if(dryerList.length == 0) {
alert('ERROR: No fleet data received.')
}
You should use '===' to compare with '0' on line 2 and 14
naturally in real life you would define function customBinMenu(node) before it was used in your document.ready function.
Fixed by swapping code order.
The same goes for this document.ready function where you used var dryerList before it was defined.
Fixed by: var dryerList = dryerList || []; if(dryerList.length === 0){//ajax & json code}
Could you please confirm if this fiddle, which is now valid javascript, represents your intended baseline-code that still results in your problem of the 'id'-attribute being 'undefined' in dryerList's node-collection (since the code you posted contained some simple errors that are fixed in this jsfiddle, excluding the things mentioned in update 1, since you commented that this is not the problem) ?
May I ask (since you start at document.ready), why do you (still) check if dryerList already exists?
May I ask if you could update that corrected fiddle with some demo-data for us to toy around with?