Please help with the script function on how to make select2 plugin work in wizard jquery template it is not firing and i'm using the search box, when it clicked it jams.Thank you
$('.class').select2(); AFTER $('#form').steps();
This has helped me thanks but..
$("#form").steps({
bodyTag: "fieldset",
onStepChanging: function (event, currentIndex, newIndex)
{
// Always allow going backward even if the current step contains invalid fields!
if (currentIndex > newIndex)
{
return true;
}
// Forbid suppressing "Warning" step if the user is to young
if (newIndex === 3 && Number($("#age").val()) < 18)
{
return false;
}
var form = $(this);
// Clean up if user went backward before
if (currentIndex < newIndex)
{
// To remove error styles
$(".body:eq(" + newIndex + ") label.error", form).remove();
$(".body:eq(" + newIndex + ") .error", form).removeClass("error");
}
// Disable validation on fields that are disabled or hidden.
form.validate().settings.ignore = ":disabled,:hidden";
// Start validation; Prevent going forward if false
return form.valid();
},
onStepChanged: function (event, currentIndex, priorIndex)
{
// Suppress (skip) "Warning" step if the user is old enough.
if (currentIndex === 2 && Number($("#age").val()) >= 18)
{
$(this).steps("next");
}
// Suppress (skip) "Warning" step if the user is old enough and wants to the previous step.
if (currentIndex === 2 && priorIndex === 3)
{
$(this).steps("previous");
}
},
onFinishing: function (event, currentIndex)
{
var form = $(this);
// Disable validation on fields that are disabled.
// At this point it's recommended to do an overall check (mean ignoring only disabled fields)
form.validate().settings.ignore = ":disabled";
// Start validation; Prevent form submission if false
return form.valid();
},
onFinished: function (event, currentIndex)
{
var form = $(this);
// Submit form input
form.submit();
}
}).validate({
errorPlacement: function (error, element)
{
element.before(error);
},
rules: {
confirm: {
equalTo: "#password"
}
}
});
//IMPORTANT
var form =$("#form");
form.find("#personel_id").select2({
theme: 'bootstrap4',
});
Related
I have a very simple pug file:
for item in itemList
form(method='post', action='/change')
table
tr
td(width=100)
td(width=200)
| #{item.name}
input(type='hidden', name='field' value=item.name)
input(type='hidden', name='style' value='doublevalue')
td(width=100)
input(type='number', name='value' min=-20.0 max=80.00 step=0.01 value=+item.value)
td(width=100)
input(type='submit', value='Update')
p end
As you can see it produces a few trivial forms like this:
(Each form is one 'line' which is a simple table.)
(On the script side, it just reads each 'line' from a MySQL table, there are 10 or so of them.)
So on the www page, the user either
types in new number (say "8")
or clicks the small arrows (say Up, changing it to 7.2 in the example)
then the user must
click submit
and it sends the post.
Quite simply, I would like it to be that when the user
clicks a small arrows (say Up, changing it to 7.2 in the example)
it immediately sends a submit-post.
How do I achieve this?
(It would be fine if the send happens, any time the user types something in the field, and/or, when the user clicks the Small Up And Down Buttons. Either/both is fine.)
May be relevant:
My pug file (and all my pug files) have this sophisticated line of code as line 1:
include TOP.pug
And I have a marvellous file called TOP.pug:
html
head
style.
html {
font-family: sans-serif
}
td {
font-family: monospace
}
body
I have a solution with javascript.
// check if there are input[type="number"] to prevent errors
if (document.querySelector('input[type="number"]')) {
// add event for each of them
document.querySelectorAll('input[type="number"]').forEach(function(el) {
el.addEventListener('change', function (e) {
// on change submit the parent (closest) form
e.currentTarget.closest('form').submit()
});
});
}
Actually it is short but if you want to support Internet Explorer you have to add the polyfill script too. Internet Explorer does not support closest() with this snippet below we teach it.
// polyfills for matches() and closest()
if (!Element.prototype.matches)
Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector;
if (!Element.prototype.closest) {
Element.prototype.closest = function(s) {
var el = this;
do {
if (el.matches(s)) return el;
el = el.parentElement || el.parentNode;
} while (el !== null && el.nodeType === 1);
return null;
};
}
Ajax form submit to node.js
If you are interested in an ajax solution I put some code below just to blow your mind ;-) It should work instantly, I use it on one of my sites. You could use jQuery and save lines of code but I like it pure. (The ajax function and polyfills are utils so paste it anywhere)
HTML (example)
<form>
<input type="hidden" name="field" value="field1">
<input type="hidden" name="style" value="style1">
<input type="number" name="value">
<input type="submit" value="update">
</form>
<form>
<input type="hidden" name="field" value="field2">
<input type="hidden" name="style" value="style2">
<input type="number" name="value">
<input type="submit" value="update">
</form>
Javascript: event listener and prepare ajax call (note the callbacks).
// check if there are forms to prevent errors
if (document.querySelector('form')) {
// add submit event for each form
document.querySelectorAll('form').forEach(function (el) {
el.addEventListener('submit', function (e) {
e.currentTarget.preventDefault();
submitData(e.currentTarget);
});
});
}
// check if there are input[type="number"] to prevent errors
if (document.querySelector('input[type="number"]')) {
// add change event for each of them
document.querySelectorAll('input[type="number"]').forEach(function (el) {
el.addEventListener('change', function (e) {
submitData(e.currentTarget.closest('form'));
});
});
}
// collect form data and send it
function submitData(form) {
// send data through (global) ajax function
ajax({
url: '/change',
method: 'POST',
data: {
field: form.querySelector('input[name="field"]').value,
style: form.querySelector('input[name="style"]').value,
value: form.querySelector('input[name="value"]').value,
},
// callback on success
success: function (response) {
// HERE COMES THE RESPONSE
console.log(response);
// error is defined in (node.js res.json({error: ...}))
if (response.error) {
// make something red
form.style.border = '1px solid red';
}
if (!response.error) {
// everything ok, make it green
form.style.border = '1px solid green';
}
// remove above styling
setTimeout(function () {
form.style.border = 'none';
}, 1000);
},
// callback on error
error: function (error) {
console.log('server error occurred: ' + error)
}
});
}
As told javascript utils (paste it anywhere like a library)
// reusable ajax function
function ajax(obj) {
let a = {};
a.url = '';
a.method = 'GET';
a.data = null;
a.dataString = '';
a.async = true;
a.postHeaders = [
['Content-type', 'application/x-www-form-urlencoded'],
['X-Requested-With', 'XMLHttpRequest']
];
a.getHeaders = [
['X-Requested-With', 'XMLHttpRequest']
];
a = Object.assign(a, obj);
a.method = a.method.toUpperCase();
if (typeof a.data === 'string')
a.dataString = encodeURIComponent(a.data);
else
for (let item in a.data) a.dataString += item + '=' + encodeURIComponent(a.data[item]) + '&';
let xhReq = new XMLHttpRequest();
if (window.ActiveXObject) xhReq = new ActiveXObject('Microsoft.XMLHTTP');
if (a.method == 'GET') {
if (typeof a.data !== 'undefined' && a.data !== null) a.url = a.url + '?' + a.dataString;
xhReq.open(a.method, a.url, a.async);
for (let x = 0; x < a.getHeaders.length; x++) xhReq.setRequestHeader(a.getHeaders[x][0], a.getHeaders[x][1]);
xhReq.send(null);
}
else {
xhReq.open(a.method, a.url, a.async);
for (let x = 0; x < a.postHeaders.length; x++) xhReq.setRequestHeader(a.postHeaders[x][0], a.postHeaders[x][1]);
xhReq.send(a.dataString);
}
xhReq.onreadystatechange = function () {
if (xhReq.readyState == 4) {
let response;
try {
response = JSON.parse(xhReq.responseText)
} catch (e) {
response = xhReq.responseText;
}
//console.log(response);
if (xhReq.status == 200) {
obj.success(response);
}
else {
obj.error(response);
}
}
}
}
// (one more) polyfill for Object.assign
if (typeof Object.assign !== 'function') {
// Must be writable: true, enumerable: false, configurable: true
Object.defineProperty(Object, 'assign', {
value: function assign(target, varArgs) {
// .length of function is 2
if (target === null || target === undefined) {
throw new TypeError('Cannot convert undefined or null to object');
}
var to = Object(target);
for (var index = 1; index < arguments.length; index++) {
var nextSource = arguments[index];
if (nextSource !== null && nextSource !== undefined) {
for (var nextKey in nextSource) {
// Avoid bugs when hasOwnProperty is shadowed
if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
to[nextKey] = nextSource[nextKey];
}
}
}
}
return to;
},
writable: true,
configurable: true
});
}
// polyfills for matches() and closest()
if (!Element.prototype.matches)
Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector;
if (!Element.prototype.closest) {
Element.prototype.closest = function (s) {
var el = this;
do {
if (el.matches(s)) return el;
el = el.parentElement || el.parentNode;
} while (el !== null && el.nodeType === 1);
return null;
};
}
In node.js (e.g. express route)
// the route in node.js
app.post('/change', (req, res) => {
// your logic here
let field = req.body.field;
let style = req.body.style;
let value = req.body.value;
// ...
// response result
res.json({
databaseError: false, // or true
additionalStuff: 'message, markup and other things ...',
});
});
Context: I have a list of posts with tags, categories from wordpress api. I display these posts with Vue and using computed with a search box to filter the result based on titre, description, tags, and categories
Problem: I am trying to update a computed list when user click on a list of tag available. I add the get and set for computed data like this:
var vm = new Vue({
el: '#blogs',
data: {
search: '',
posts: [],
filterPosts: []
},
beforeMount: function() {
// It should call the data and update
callData();
},
computed: {
filterPosts: {
get: function() {
var self = this;
return self.posts.filter(function(post){
var query = self.search.toLowerCase();
var title = post.title.toLowerCase();
var content = post.content.toLowerCase();
var date = post.date.toLowerCase();
var categories = '';
post.categories.forEach(function(category) {
categories += category.name.toLowerCase();
});
var tags = '';
post.tags.forEach(function(tag){
tags += tag.name.toLowerCase();
});
return title.indexOf(query) !== -1 ||content.indexOf(query) !== -1 || date.indexOf(query) !== -1 || categories.indexOf(query) !== -1 || tags.indexOf(query) !== -1;
});
},
set: function (newValue) {
console.log(newValue);
this.filterPosts = Object.assign({}, newValue);
}
}
},
methods: {
filterByTag: function(tag, event) {
event.preventDefault();
var self = this;
self.filterPosts = self.posts.filter(function(post){
var tags = '';
post.tags.forEach(function(tag){
tags += tag.name.toLowerCase();
});
return tags.indexOf(tag.toLowerCase()) !== -1;
});
}
}
}); // Vue instance
The console.log always output new data based on the function I wrote on methods but Vue didn't re-render the view. I think I didn't do the right way or thought like Vue. Could you please give some insight?
Edit 1
Add full code.
I tried to add filterPosts in data but I received this error from Vue: The computed property "filterPosts" is already defined in data.
Your setter is actually not setting anything, it only logs the new value. You need to store it somewhere.
For example you can store it in the component's data:
data: {
value: 'foo',
},
computed: {
otherValue: {
get() { /*...*/ },
set(newVal) { this.value = newVal },
},
},
But this is definitely not the only possibility, if you use Vuex, the setter can dispatch an action that will then make the computed value get updated. The component will eventually catch the update and show the new value.
computed: {
value: {
get() {
return this.$store.getters.externalData;
},
set(newVal) {
return this.$store.dispatch('modifyingAction', newVal);
},
},
},
The bottomline is you have to trigger a data change in the setter, otherwise your component will not be updated nor will it trigger any rerender.
EDIT (The original answer was updated with full code):
The answer is that unless you want to manually change the list filteredPosts without altering posts, you don't need a get and set function for your computed variable. The behaviour you want can be acheived with this:
const vm = new Vue({
data() {
return {
search: '',
posts: [],
// these should probably be props, or you won't be able to edit the list easily. The result is the same anyway.
};
},
computed: {
filteredPosts() {
return this.posts.filter(function(post) {
... // do the filtering
});
},
},
template: "<ul><li v-for='post in filteredPosts'>{{ post.content }}</li></ul>",
});
This way, if you change the posts or the search variable in data, filteredPosts will get recomputed, and a re-render will be triggered.
After going around and around, I found a solution, I think it may be the right way with Vue now: Update the computed data through its dependencies properties or data.
The set method didn't work for this case so I add an activeTag in data, when I click on a tag, it will change the activeTag and notify the computed filterPost recheck and re-render. Please tell me if we have another way to update the computed data.
var vm = new Vue({
el: '#blogs',
data: {
search: '',
posts: [],
tags: [],
activeTag: ''
},
beforeMount: function() {
// It should call the data and update
callData();
},
computed: {
filterPosts: {
get: function() {
var self = this;
return self.posts.filter(function(post){
var query = self.search.toLowerCase();
var title = post.title.toLowerCase();
var content = post.content.toLowerCase();
var date = post.date.toLowerCase();
var categories = '';
post.categories.forEach(function(category) {
categories += category.name.toLowerCase();
});
var tags = '';
post.tags.forEach(function(tag){
tags += tag.name.toLowerCase();
});
var activeTag = self.activeTag;
if (activeTag !== '') {
return tags.indexOf(activeTag.toLowerCase()) !== -1;
}else{
return title.indexOf(query) !== -1 ||content.indexOf(query) !== -1 || date.indexOf(query) !== -1 || categories.indexOf(query) !== -1 || tags.indexOf(query) !== -1;
}
});
},
set: function (newValue) {
console.log(newValue);
}
}
},
methods: {
filterByTag: function(tag, event) {
event.preventDefault();
var self = this;
self.activeTag = tag;
}
}
}); // Vue instance
Try something like:
data: {
myValue: 'OK'
},
computed: {
filterPosts: {
get: function () {
return this.myValue + ' is OK'
}
set: function (newValue) {
this.myValue = newValue
}
}
}
More:
https://v2.vuejs.org/v2/guide/computed.html#Computed-Setter
I would like to switch to an iframe using pure phantom.js code
Here is my first attempt
var page = new WebPage();
var url = 'http://www.theurltofectch'
page.open(url, function (status) {
if ('success' !== status) {
console.log("Error");
} else {
page.switchToFrame("thenameoftheiframe");
console.log(page.content);
phantom.exit();
}
});
It produces only the source code of the main page. Any idea ?
Notice that the iframe domain is different from the main page domain.
Please give this a try I believe it may be an async issues meaning the iframe is not present when trying to access it. I received the below snippet from another post.
var page = require('webpage').create(),
testindex = 0,
loadInProgress = false;
page.onConsoleMessage = function(msg) {
console.log(msg);
};
page.onLoadStarted = function() {
loadInProgress = true;
console.log("load started");
};
page.onLoadFinished = function() {
loadInProgress = false;
console.log("load finished");
};
/*
page.onNavigationRequested = function(url, type, willNavigate, main) {
console.log('Trying to navigate to: ' + url);
console.log('Caused by: ' + type);
console.log('Will actually navigate: ' + willNavigate);
console.log('Sent from the page\'s main frame: ' + main);
};
*/
/*
The steps array represents a finite set of steps in order to perform the unit test
*/
var steps = [
function() {
//Load Login Page
page.open("https://www.yourpage.com");
},
function() {
//access your iframe here
page.evaluate(function() {
});
},
function() {
//any other step you want
page.evaluate(function() {
});
},
function() {
// Output content of page to stdout after form has been submitted
page.evaluate(function() {
//console.log(document.querySelectorAll('html')[0].outerHTML);
});
//render a test image to see if login passed
page.render('test.png');
}
];
interval = setInterval(function() {
if (!loadInProgress && typeof steps[testindex] === "function") {
console.log("step " + (testindex + 1));
steps[testindex]();
testindex++;
}
if (typeof steps[testindex] !== "function") {
console.log("test complete!");
phantom.exit();
}
}, 50);
replace
console.log(page.content);
with
console.log(page.frameContent);
Should return the contents of the frame phantomjs switched to.
If the iframe is from another domain you may need to add the --web-security=no option like this:
phantomjs --web-security=no myscript.js
As an additional information, what xMythicx said could be true. Some iframes are rendered via Javascript after page finishes loading. If the iframe contents are empty, then you will need to wait for all resources to finish loading, before you start grabbing stuff from the page. But this is another issue, if you need an answer on this, I suggest you ask a new question about it, and I will answer there.
Had the same problem for iframes and
phantomjs --web-security=no
helped in my case :]
I want to capture the event of a user pressing enter on an input of type="text" when they are filling out a form. This is done all over the web, yet the answer eludes me.
This is what I have so far:
In the html file, I have a text input like so:
<input type="text" size=50 class="newlink">
In the Javascript file, I am trying to capture the the user pressing enter to effectively submit the form. I am then grabbing the text from the input and going to stash it in the database:
Template.newLink.events = {
'submit input.newLink': function () {
var url = template.find(".newLink").value;
// add to database
}
};
The submit event is emitted from forms, not single input elements.
The built in event map for meteor is documented here: http://docs.meteor.com/#eventmaps.
You'll have to listen for a keyboard event (keydown, keypress, keyup). Within the event handler, check, if it's the return/enter key (Keycode 13), and proceed on success.
Template.newLink.events = {
'keypress input.newLink': function (evt, template) {
if (evt.which === 13) {
var url = template.find(".newLink").value;
// add to database
}
}
};
You could look into how this is achieved in the todos example (client/todos.js).
It uses a generic event handler for input fields (as seen below). You can browse the rest of the code for usage.
////////// Helpers for in-place editing //////////
// Returns an event map that handles the "escape" and "return" keys and
// "blur" events on a text input (given by selector) and interprets them
// as "ok" or "cancel".
var okCancelEvents = function (selector, callbacks) {
var ok = callbacks.ok || function () {};
var cancel = callbacks.cancel || function () {};
var events = {};
events['keyup '+selector+', keydown '+selector+', focusout '+selector] =
function (evt) {
if (evt.type === "keydown" && evt.which === 27) {
// escape = cancel
cancel.call(this, evt);
} else if (evt.type === "keyup" && evt.which === 13 ||
evt.type === "focusout") {
// blur/return/enter = ok/submit if non-empty
var value = String(evt.target.value || "");
if (value)
ok.call(this, value, evt);
else
cancel.call(this, evt);
}
};
return events;
};
I used this js function once to suppress the user using the return key in the text field to submit the form data. Perhaps you could modify it to suit the capture?
function stopRKey(evt) { // Stop return key functioning in text field.
var evt = (evt) ? evt : ((event) ? event : null);
var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
if ((evt.keyCode == 13) && (node.type=="text")) { return false; }
}
document.onkeypress = stopRKey;
You can also use event.currentTarget.value
Template.newLink.events = {
'keypress input.newLink': function (evt) {
if (evt.which === 13) {
var url = event.currentTarget.value;
// add to database
}
}
};
I have the code below that shows a throbber and makes a getJSON call to an MVC action when the user changes an entry in a select. This all works great except there is a default -- select -- element in the list for which I don't want the getJSON to run.
However, I can't work out how to apply conditional logic to hooking this event. The conditional logic is shown as the if(selectedValue == -1) But the throbber still runs as I've hooked it in the first line. I've tried removing the first line that hooks the change event and use $.throbberShow(..) inline just prior to the getJSON call but for some reason this doesn't show the throbber.
Any help greatly appreciated.
$("#selectlist").throbber("change", { ajax: false, image: "images/ajax-loader-line.gif" });
$("#selectlist").change(
function () {
var selectedValue = $("#selectlist").val();
if (selectedValue != -1) {
//Tried doing $.throbberShow(...) here without success
$.getJSON("/Candidate/GetAddress", { id: selectedValue }, function (data, textStatus) {
if (textStatus == "success") {
$("#selectlist").val(data.Line1)
$("#selectlist").val(data.Line2)
$("#selectlist").val(data.Line3)
$("#selectlist").val(data.Town)
}
$.throbberHide();
});
}
}
);
It is more a hack than a solution as throbber doesn't support conditions but this should work:
$("#selectlist").throbber("change", { ajax: false, image: "images/ajax-loader-line.gif", delay: "500" });
$("#selectlist").change(
function () {
var selectedValue = $("#selectlist").val();
if (selectedValue != -1) {
$.getJSON("/Candidate/GetAddress", { id: selectedValue }, function (data, textStatus) {
if (textStatus == "success") {
$("#selectlist").val(data.Line1)
$("#selectlist").val(data.Line2)
$("#selectlist").val(data.Line3)
$("#selectlist").val(data.Town)
}
$.throbberHide();
});
} else {
$.throbberHide();
}
}
);