I have 2 jQuery snippets 1st is toggle readonly and the 2nd is a submit form.
Toggle readonly:
$('#lock').toggle( function () {
$('#handle').attr('readonly', true).addClass('disabled');
return false;
} , function() {
$('#handle').attr('readonly', false).removeClass('disabled');
return false;
});
Submit form:
$('button').click(function() {
var handle = $('#handle').val();
var msg = $('#msg').val();
var dataString = 'handle='+ handle + '&msg=' + msg;
if(handle=='' || msg=='') {
$('.error').fadeOut(200).show();
} else {
$.ajax({
type : 'POST',
url : 'form.php',
data : dataString,
success : function(){
$('#foo').load('page.php');
}}
});
}
return false;
});
What I am trying to achieve is
if readonly = true do not reset "handle" value
otherwise reset both, so I need to get the status of the 1st snippet (toggle readonly) and allow the 2nd (form) to distinguish whether its true or false.
I tried this in success: but it didn't work.
if($('#handle').attr('readonly', true)){
$('#msg').val('');
}else{
$('#handle, #msg').val('');
Try this code instead:
if ($('#handle').is('[readonly]')) {
$('#msg').val('');
}
else {
$('#handle, #msg').val('');
}
Also for use
$('#handle').prop('readonly', true)
instead of
$('#handle').attr('readonly', true)
Related
I have this ajax call that populate the fields to a related field.
YAHOO.util.Event.onDOMReady(function() {
YAHOO.util.Event.addListener(
"parent_module_another_module_ida",
"change",
ajaxReq
);
function ajaxReq() {
var propertyId = $("#parent_module_another_module_ida").val();
if (propertyId != "") {
$.ajax({
url: "/?entryPoint=ajaxEntryPoint&module=Parent_Module&id=" + propertyId,
success: function(result) {
var res = JSON.parse(result);
$("#price").val(res['price']);
}
});
}
}
});
The fields gets auto populated but the format becomes something like 1000.000000 ive tried to modify the precision in its vardefs to 0 but its still the same i want to format the number if possible to something like this 1,000.
You will need to use toFixed function of javascript to get the required results.
Following is the modified code:
YAHOO.util.Event.onDOMReady(function() {
YAHOO.util.Event.addListener(
"parent_module_another_module_ida",
"change",
ajaxReq
);
function ajaxReq() {
var propertyId = $("#parent_module_another_module_ida").val();
if (propertyId != "") {
$.ajax({
url: "/?entryPoint=ajaxEntryPoint&module=Parent_Module&id=" + propertyId,
success: function(result) {
var res = JSON.parse(result);
price_val = res['price'].toFixed(0);
$("#price").val(price_val);
}
});
}
}
});
I am implementing a cross field validation for two fields in a form (reactive / model based approach) and do not know how should I add an error to existing Error List of a formcontrol
Form:
this.myForm = new FormGroup({
name: new FormControl('', Validators.minLength(3));
city: new FormGroup({
cityOne: new FormControl('', Validators.minLength(3)),
cityTwo: new FormControl('', Validators.minLength(3))
}, this.validateEqualCities)
});
Validator:
validateEqualCities(formGroup: FormGroup) {
return (control: AbstractControl): { [key: string]: any } => {
if (formGroup.controls['cityOne'].value && formGroup.controls['cityTwo'].value && formGroup.controls['cityOne'].value !== formGroup.controls['cityTwo'].value) {
formGroup.controls['cityOne'].setErrors({ 'equalCities': true }, { emitEvent: true });
formGroup.controls['cityTwo'].setErrors({ 'equalCities': true }, { emitEvent: true });
return { 'equalCities': false };
} else {
formGroup.controls['cityOne'].updateValueAndValidity({ onlySelf: true, emitEvent: false });
formGroup.controls['cityTwo'].updateValueAndValidity({ onlySelf: true, emitEvent: false });
}
return null;
};
}
My Problem:
If the validation fails "setErrors(..)" overrides all errors which are already there (Validators of formControls), so there is no correct state, because actually there should be 2 errors.
If I do not set errors to form controls directly and only return an error to the form, only the form is invalid and gets the error, but not its controls.
How can I achieve that both, form and controls has the real state of validation?
Thank you very much!
You can capture the errors object as it is before you assign the errors, modify it, and write the entire object back.
validateEqualCities(formGroup: FormGroup) {
return (control: AbstractControl): { [key: string]: any } => {
if (formGroup.controls['cityOne'].value && formGroup.controls['cityTwo'].value && formGroup.controls['cityOne'].value !== formGroup.controls['cityTwo'].value) {
let errors = formGroup.controls['cityOne'].errors ? formGroup.controls['cityOne'].errors : {};
errors['equalCities'] = false;
formGroup.controls['cityOne'].setErrors(errors, { emitEvent: true });
errors = formGroup.controls['cityTwo'].errors ? formGroup.controls['cityTwo'].errors : {};
errors['equalCities'] = false;
formGroup.controls['cityTwo'].setErrors(errors, { emitEvent: true });
return { 'equalCities': false };
<...>
Here's a Plunker with a working demo: http://plnkr.co/edit/XTeH1ifQTJSoMvBEvE0d?p=preview
I have created view model
var catalog = ko.observableArray();
$.ajax({
type: "GET",
url: "http://localhost:8080/ticket-service/rest/ticket/list",
success: function(msg) {
catalog.push.apply(catalog, $.map(msg, function(data) {
return new Ticket(data)
}));
return catalog;
},
error: function(msg) {
console.log(msg)
}
});
and the model
function Ticket(data) {
this.ticketId = ko.observable(data.ticketId);
this.ticketNo = ko.observable(data.ticketNo);
this.ticketTitle = ko.observable(data.ticketTitle);
this.longDescription = ko.observable(data.longDescription);
this.createdBy = ko.observable(data.createdBy);
this.createdOn= ko.observable(data.createdOn);
this.assignTo = ko.observable(data.assignTo);
this.priority = ko.observable(data.priority);
this.dueDate = ko.observable(data.dueDate);
this.status = ko.observable(data.status);
this.projectId = ko.observable(data.projectId);
}
with at the end viewmodel like this
return {
ticket: newTicket,
searchTerm: searchTerm,
catalog: filteredCatalog,
newTicket: newTicket,
addTicket: addTicket,
delTicket: delTicket
};
})();
console.log(vm);
ko.applyBindings(vm);
produce list,add, and delete form.The question is how can i use knockout mapping that can list from get methode.
you need to do something like this
Demonstrated taking a single entity from your code .
view:
Output Preview :
<pre data-bind="text:ko.toJSON($data,null,2)"></pre>
viewModel:
function Ticket(data) {
this.ticketId = ko.observable(data.ticketId);
}
var mapping = {
create: function (options) {
return new Ticket(options.data);
}
};
var ViewModel = function () {
var self = this;
self.catalog = ko.observableArray();
var data = [{
'ticketId': 1
}, {
'ticketId': 2
}]
//under ajax call do the same but pass 'msg' in place of data
self.catalog(ko.mapping.fromJS(data, mapping)())
console.log(self.catalog()); // check console for output
};
ko.applyBindings(new ViewModel());
sample working fiddle here
Heres the jsfiddle, jsfiddle.net/kqreJ
So I was using .bind no problem for this function but then I loaded more updates to the page and found out that .bind doesn't work for content imported to the page but just for content already on the page! Great!
So I switched it up to .delegate which is pretty cool but now I can't figure out how to .bind .unbind my function the way it was???
Function using .bind which worked perfect... except didn't work on ajax content.. :(
$('.open').bind("mouseup",function(event) {
var $this = $(this), handler = arguments.callee;
$this.unbind('mouseup', handler);
var id = $(this).attr("id");
var create = 'nope';
var regex = /\d+$/,
statusId = $('#maindiv .open').toArray().map(function(e){
return parseInt(e.id.match(regex));
});
var divsToCreate = [ parseInt(id) ];
$.each(divsToCreate, function(i,e)
{
if ( $.inArray(e, statusId) == -1 ) {
create = 'yup';
}
});
if( create == 'yup' ) {
if(id) {
$.ajax({
type: "POST",
url: "../includes/open.php",
data: "post="+ id,
cache: false,
success: function(html) {
$('.open').html(html);
$this.click(handler);
}
});
}
}
});
New function using .delegate that is not binded and creates multiple instances?
$('#maindiv').delegate("span.open", "mouseup",function(event) {
var $this = $(this), handler = arguments.callee;
$this.unbind('mouseup', handler);
var id = $(this).attr("id");
var create = 'nope';
var regex = /\d+$/,
statusId = $('#maindiv .open').toArray().map(function(e){
return parseInt(e.id.match(regex));
});
var divsToCreate = [ parseInt(id) ];
$.each(divsToCreate, function(i,e)
{
if ( $.inArray(e, statusId) == -1 ) {
create = 'yup';
}
});
if( create == 'yup' ) {
if(id) {
$.ajax({
type: "POST",
url: "../includes/open.php",
data: "post="+ id,
cache: false,
success: function(html) {
$('.open').html(html);
$this.click(handler);
}
});
}
}
});
I've spent hours trying to figure this out because I like learning how to do it myself but I had to break down and ask for help... getting frustrated!
I also read that when your binding and unbinding .delegate you have to put it above the ajax content? I've tried using .die() and .undelegate()... Maybe I just don't know where to place it?
Take a look at undelegate
It does to delegate what unbind does to bind.
In your case, I think it'd be something like:
$('#maindiv').undelegate("span.open", "mouseup").delegate("span.open", "mouseup" ...
Then you can drop the $this.unbind('mouseup', handler); within the function.
Firebug is giving me no error messages, but it's not working. The idea is regardless of whether the user picks an option from dropdown or if they type in something in search box, I want the alert() message defined below to alert what the value of the variable result is (e.g. {filter: Germany}). And it doesn't. I think the javascript breaks down right when a new Form instance is instantiated because I tried putting an alert in the Form variable and it was never triggered. Note that everything that pertains to this issue occurs when form.calculation() is called.
markup:
<fieldset>
<select name="filter" alter-data="dropFilter">
<option>Germany</option>
<option>Ukraine</option>
<option>Estonia</option>
</select>
<input type="text" alter-data="searchFilter" />
</fieldset>
javascript (below the body tag)
<script>
(function($){
var listview = $('#listview');
var lists = (function(){
var criteria = {
dropFilter: {
insert: function(value){
if(value)
return handleFilter("filter", value);
},
msg: "Filtering..."
},
searchFilter: {
insert: function(value){
if(value)
return handleFilter("search", value);
},
msg: "Searching..."
}
}
var handleFilter = function(key,value){
return {key: value};
}
return {
create: function(component){
var component = component.href.substring(component.href.lastIndexOf('#') + 1);
return component;
},
setDefaults: function(component){
var parameter = {};
switch(component){
case "sites":
parameter = {
'order': 'site_num',
'per_page': '20',
'url': 'sites'
}
}
return parameter;
},
getCriteria: function(criterion){
return criteria[criterion];
},
addCriteria: function(criterion, method){
criteria[criterion] = method;
}
}
})();
var Form = function(form){
var fields = [];
$(form[0].elements).each(function(){
var field = $(this);
if(typeof field.attr('alter-data') !== 'undefined') fields.push(new Field(field));
})
}
Form.prototype = {
initiate: function(){
for(field in this.fields){
this.fields[field].calculate();
}
},
isCalculable: function(){
for(field in this.fields){
if(!this.fields[field].alterData){
return false;
}
}
return true;
}
}
var Field = function(field){
this.field = field;
this.alterData = false;
this.attach("change");
this.attach("keyup");
}
Field.prototype = {
attach: function(event){
var obj = this;
if(event == "change"){
obj.field.bind("change", function(){
return obj.calculate();
})
}
if(event == "keyup"){
obj.field.bind("keyup", function(e){
return obj.calculate();
})
}
},
calculate: function(){
var obj = this,
field = obj.field,
msgClass = "msgClass",
msgList = $(document.createElement("ul")).addClass("msgClass"),
types = field.attr("alter-data").split(" "),
container = field.parent(),
messages = [];
field.next(".msgClass").remove();
for(var type in types){
var criterion = lists.getCriteria(types[type]);
if(field.val()){
var result = criterion.insert(field.val());
container.addClass("waitingMsg");
messages.push(criterion.msg);
obj.alterData = true;
alert(result);
initializeTable(result);
}
else {
return false;
obj.alterData = false;
}
}
if(messages.length){
for(msg in messages){
msgList.append("<li>" + messages[msg] + "</li");
}
}
else{
msgList.remove();
}
}
}
$('#dashboard a').click(function(){
var currentComponent = lists.create(this);
var custom = lists.setDefaults(currentComponent);
initializeTable(custom);
});
var initializeTable = function(custom){
var defaults = {};
var custom = custom || {};
var query_string = $.extend(defaults, custom);
var params = [];
$.each(query_string, function(key,value){
params += key + ': ' + value;
})
var url = custom['url'];
$.ajax({
type: 'GET',
url: '/' + url,
data: params,
dataType: 'html',
error: function(){},
beforeSend: function(){},
complete: function() {},
success: function(response) {
listview.html(response);
}
})
}
$.extend($.fn, {
calculation: function(){
var formReady = new Form($(this));
if(formReady.isCalculable) {
formReady.initiate();
}
}
})
var form = $('fieldset');
form.calculation();
})(jQuery)
Thank you for anyone who responds. I spent a lot of time trying to make this work.
The initial problem as to why the alert() was not being triggered when Form is instantiated is because, as you can see, the elements property belongs to the Form object, not fieldset object. And as you can see in the html, I place the fields as descendents of the fieldset object, not form.