$(document).ready(function(){
$('td#crop').click(function() {
$('img').each(function(){
$('this').attr(id);
alert(id);
});
})
});
I am trying to get the the value of the id of each image I click on but this is not working,Please help
this should not be a string, and you need to save the value returned by .attr().
$(document).ready(function() {
$('#crop').click(function() {
$('img').each(function() {
var id = $(this).attr(id);
alert(id);
});
});
});
Other cleanup:
Added a missing semicolon (though that wasn't enough to break the code).
Changed over-specifed selector 'td#crop' to '#crop', since there can be (at most) one element with a particular ID.
Related
I'm using Ajax Autocomplete for Jquery (https://www.devbridge.com/sourcery/components/jquery-autocomplete/) with DataTables to search on a specific column.
Using onSearchComplete and onSelect from Autocomplete I can filter both the input and the table together as the user is typing (onSearchComplete) and when they select an entry (onSelect):
$("#scoreboard_site_name_filter").autocomplete({
serviceUrl: "/wiki/extensions/CFBHA/models/_mSiteNames.php",
onSearchComplete: function(suggestion) {
update_scoreboard_by_site_name_filter(suggestion);
},
onSelect: function(suggestion) {
update_scoreboard_by_site_name_filter(suggestion);
}
});
function update_scoreboard_by_site_name_filter(suggestion) {
var colname = "site_name:name";
if (scoreboard.column(colname).search() !== suggestion) {
scoreboard.column(colname).search(suggestion).draw();
}
};
However, when the input is deleted, then the DataTable is left filtered on the last input because neither event is fired in that case.
I've tried the keyup and change events on the input itself to pass an empty string to the DataTable search:
$("#scoreboard_site_name_filter").on("keyup change", function() {
var suggestion = "";
update_scoreboard_by_site_name_filter(suggestion);
});
If I place it before the autocomplete then it has no affect and if I place it after then of course I lose the ability to filter the table as I type because it fires after the autocomplete.
How can I detect when the input has been deleted and then re-filter the table on an empty string (i.e., clear that filter)?
OK, I was overthinking it . . .
I removed the onSearchComplete event and just went with the input event on the input itself and everything is working great.
I left the onSelect for the Autocomplete and am now properly passing suggestion.value instead of suggestion.
Here's the proper code for anyone interested:
$("#scoreboard_site_name_filter").on("keyup change", function() {
update_scoreboard_by_site_name_filter(this.value);
});
$("#scoreboard_site_name_filter").autocomplete({
serviceUrl: "/wiki/extensions/CFBHA/models/_mSiteNames.php",
onSelect: function(suggestion) {
update_scoreboard_by_site_name_filter(suggestion.value);
}
});
function update_scoreboard_by_site_name_filter(suggestion) {
var colname = "site_name:name";
if (scoreboard.column(colname).search() !== suggestion) {
scoreboard.column(colname).search(suggestion).draw();
}
};
Additionally I updated the code to make the search regex if the suggestion is actually selected (clicked on or entered on) and to add a class to the input as an indicator that the table is now filtered on that exact search term:
$("#scoreboard_site_name_filter").on("input", function() {
update_scoreboard_by_site_name_filter(this.value, false);
});
$("#scoreboard_site_name_filter").autocomplete({
serviceUrl: "/wiki/extensions/CFBHA/models/_mSiteNames.php",
onSelect: function(suggestion) {
update_scoreboard_by_site_name_filter(suggestion.value, true);
}
});
function update_scoreboard_by_site_name_filter(suggestion, selected) {
var colname = "site_name:name";
if (!selected) {
scoreboard.column(colname).search(suggestion).draw();
$("#scoreboard_site_name_filter").removeClass("autocomplete-input-selected");
} else {
scoreboard.column(colname).search("^" + suggestion + "$", true, false).draw();
$("#scoreboard_site_name_filter").addClass("autocomplete-input-selected");
};
};
I working on a little snippet, a live search with MySQL.
Now i think it could be nice to store/save which searchword the user, did the search on.
Example:
User search on
My new book
Then i want to store that to my databse.
The problem is with my script right now, where i trig the ajax on keyup. Then it will store.
M My My N My Ne My New .... and so on..
and so on, how can i come around this and only store the hole line ..?
$(function() {
$("#searchword").keyup(function(){
var text = $(this).val();
if (text != ' ') {
$('#result').html(" ");
$.ajax({
type: 'post',
url: 'livesearch.php',
data: { 'search': text },
success: function(dataReturn) {
$('#result').html(dataReturn);
}
});
}
});
});
I've created a storeText(txt,time) function that will take your text as first param and time to wait before sending ajax as second param. You can change the second parameter as per your need. Add your ajax call in the function below my comment and you're good to go.
$(function() {
$("#searchword").keyup(function(){
var text = $(this).val();
if (text != ' ') {
//THIS IS WHERE YOU CAN MODIFY THE TIME
storeText(text,1000);
$('#result').html(" ");
$.ajax({
type: 'post',
url: 'livesearch.php',
data: { 'search': text },
success: function(dataReturn) {
$('#result').html(dataReturn);
}
});
}
});
});
var timer;
function storeText(txt,time){
clearTimeout(timer);
timer = setTimeout(function(){
//ADD YOUR SAVE QUERY AJAX HERE
},time);
}
Here's a JSFiddle to see it in action: https://jsfiddle.net/3n2L2v6g/
Try typing anything in the text box, it waits 1000ms before executing the code where your ajax would be.
I don't want to use an <input type=submit /> button to submit a form and I am instead using an <a> element. This is due to styling requirements. So I have this code:
myButton.addEvent('click', function() {
document.id('myForm').submit();
});
However, I have also written a class that improves and implements the placeholder attribute on inputs and textareas:
var FDPlaceholderText = new Class({
Implements: Events,
initialize: function() {
var _self = this;
var forms = document.getElements('form');
forms.each(function(form) { // All forms
var performInit = false;
var i = 0;
var ph = [];
form.getElements('input, textarea').each(function(el) { // Get form inputs and textareas
if (el.getProperty('placeholder') != null) { // Check for placeholder attribute
performInit = true;
ph[i] = _self.initPlaceholder(el); // Assign the placeholder replacement to the elements
}
i ++;
});
if (performInit) {
_self.clearOnSubmit(form, ph);
}
});
},
clearOnSubmit: function(form, ph) {
form.addEvent('submit', function(e) {
ph.each(function(el) {
if (el.value == el.defaultValue) {
el.value = '';
}
});
});
},
initPlaceholder: function(el) {
el.defaultValue = el.getProperty('placeholder');
el.value = el.getProperty('placeholder');
el.addEvents({
'focus': function() {
if (el.value == el.defaultValue) el.value = '';
},
'blur': function() {
if(el.value.clean() == ''){
el.value = el.defaultValue;
}
}
});
return el;
}
});
window.addEvent('domready', function() {
new FDPlaceholderText();
});
The above class works great if a form is submitted using an actual <input type=submit /> button: it listens for a submit and clears the inputs values if they are still the default ones therefore validating that they are essentially empty.
However, it seems that because I am submitting one of my forms by listening to a click event on an <a> tag the form.addEvent('submit', function(e) { isn't getting fired.
Any help is appreciated.
well you can change the click handler to fireEvent() instead of call the .submit() directly:
myButton.addEvent('click', function() {
document.id('myForm').fireEvent('submit');
});
keep in mind a couple of things (or more).
placeholder values to elements that lack placeholder= attribute is pointless
if you detect placeholder support, do so once and not on every element, it won't change suddenly midway through the loop. you can go something like var supportsPlaceholder = !!('placeholder' in document.createElement('input')); - remember, there is no need to do anything if the browser supports it and currently, near enough 60% do.
you can otherwise do !supportsPlaceholder && el.get('placeholder') && self.initPlaceholder(el); - which avoids checking attributes when no need
when the form is being submitted you really need to clear placeholder= values in older browser or validation for 'required' etc will fail. if validation still fails, you have to reinstate the placeholder, so you need a more flexible event pattern
avoid using direct references to object properties like el.value - use the accessors like el.get('value') instead (for 1.12 it's getProperty)
for more complex examples of how to deal with this in mootools, see my repo here: https://github.com/DimitarChristoff/mooPlaceholder
This is because the submit() method is not from MooTools but a native one.
Maybe you can use a <button type="submit"> for your styling requirements instead.
I want to run JavaScript function just after user select a value using autocomplete textbox bootstrap Typeahead.
I'm searching for something like selected event.
$('.typeahead').on('typeahead:selected', function(evt, item) {
// do what you want with the item here
})
$('.typeahead').typeahead({
updater: function(item) {
// do what you want with the item here
return item;
}
})
For an explanation of the way typeahead works for what you want to do here, taking the following code example:
HTML input field:
<input type="text" id="my-input-field" value="" />
JavaScript code block:
$('#my-input-field').typeahead({
source: function (query, process) {
return $.get('json-page.json', { query: query }, function (data) {
return process(data.options);
});
},
updater: function(item) {
myOwnFunction(item);
var $fld = $('#my-input-field');
return item;
}
})
Explanation:
Your input field is set as a typeahead field with the first line: $('#my-input-field').typeahead(
When text is entered, it fires the source: option to fetch the JSON list and display it to the user.
If a user clicks an item (or selects it with the cursor keys and enter), it then runs the updater: option. Note that it hasn't yet updated the text field with the selected value.
You can grab the selected item using the item variable and do what you want with it, e.g. myOwnFunction(item).
I've included an example of creating a reference to the input field itself $fld, in case you want to do something with it. Note that you can't reference the field using $(this).
You must then include the line return item; within the updater: option so the input field is actually updated with the item variable.
first time i've posted an answer on here (plenty of times I've found an answer here though), so here's my contribution, hope it helps. You should be able to detect a change - try this:
function bob(result) {
alert('hi bob, you typed: '+ result);
}
$('#myTypeAhead').change(function(){
var result = $(this).val()
//call your function here
bob(result);
});
According to their documentation, the proper way of handling selected event is by using this event handler:
$('#selector').on('typeahead:select', function(evt, item) {
console.log(evt)
console.log(item)
// Your Code Here
})
What worked for me is below:
$('#someinput').typeahead({
source: ['test1', 'test2'],
afterSelect: function (item) {
// do what is needed with item
//and then, for example ,focus on some other control
$("#someelementID").focus();
}
});
I created an extension that includes that feature.
https://github.com/tcrosen/twitter-bootstrap-typeahead
source: function (query, process) {
return $.get(
url,
{ query: query },
function (data) {
limit: 10,
data = $.parseJSON(data);
return process(data);
}
);
},
afterSelect: function(item) {
$("#divId").val(item.id);
$("#divId").val(item.name);
}
Fully working example with some tricks. Assuming you are searching for trademarks and you want to get the selected trademark Id.
In your view MVC,
#Html.TextBoxFor(model => model.TrademarkName, new { id = "txtTrademarkName", #class = "form-control",
autocomplete = "off", dataprovide = "typeahead" })
#Html.HiddenFor(model => model.TrademarkId, new { id = "hdnTrademarkId" })
Html
<input type="text" id="txtTrademarkName" autocomplete="off" dataprovide="typeahead" class="form-control" value="" maxlength="100" />
<input type="hidden" id="hdnTrademarkId" />
In your JQuery,
$(document).ready(function () {
var trademarksHashMap = {};
var lastTrademarkNameChosen = "";
$("#txtTrademarkName").typeahead({
source: function (queryValue, process) {
// Although you receive queryValue,
// but the value is not accurate in case of cutting (Ctrl + X) the text from the text box.
// So, get the value from the input itself.
queryValue = $("#txtTrademarkName").val();
queryValue = queryValue.trim();// Trim to ignore spaces.
// If no text is entered, set the hidden value of TrademarkId to null and return.
if (queryValue.length === 0) {
$("#hdnTrademarkId").val(null);
return 0;
}
// If the entered text is the last chosen text, no need to search again.
if (lastTrademarkNameChosen === queryValue) {
return 0;
}
// Set the trademarkId to null as the entered text, doesn't match anything.
$("#hdnTrademarkId").val(null);
var url = "/areaname/controllername/SearchTrademarks";
var params = { trademarkName: queryValue };
// Your get method should return a limited set (for example: 10 records) that starts with {{queryValue}}.
// Return a list (of length 10) of object {id, text}.
return $.get(url, params, function (data) {
// Keeps the current displayed items in popup.
var trademarks = [];
// Loop through and push to the array.
$.each(data, function (i, item) {
var itemToDisplay = item.text;
trademarksHashMap[itemToDisplay] = item;
trademarks.push(itemToDisplay);
});
// Process the details and the popup will be shown with the limited set of data returned.
process(trademarks);
});
},
updater: function (itemToDisplay) {
// The user selectes a value using the mouse, now get the trademark id by the selected text.
var selectedTrademarkId = parseInt(trademarksHashMap[itemToDisplay].value);
$("#hdnTrademarkId").val(selectedTrademarkId);
// Save the last chosen text to prevent searching if the text not changed.
lastTrademarkNameChosen = itemToDisplay;
// return the text to be displayed inside the textbox.
return itemToDisplay;
}
});
});
I have a field being updated by jeditable. I want to output a warning message before submitting updates if the value is being reduced (which would result in data being lost), but not if it's being increased.
This seems a good candidate for jeditable's onsubmit function, which I can trigger happily. I can get the new value from $('input', this).val(), but how do I get the original value to which to compare it in this context?
...
Since posting the above explanation / question, I've come up with a solution of sorts. By changing the invokation in jquery.ready from
$('#foo').editable(...);
to
$('#foo').hover(function(){
var old_value = $(this).text();
$(this).editable('ajax.php', {
submitdata {'old_value':old_value}
});
});
I can use settings.submitdata.old_value in the onsubmit method.
But there surely has to be a better way? jeditable must still have the old value tucked away somewhere in order to be able to revert it. So the question becomes how can I access that from the onsubmit function?
Many thanks in advance for any suggestions.
A much easier solution would be to add this line to your submitdata variable
"submitdata": function (value, settings) {
return {
"origValue": this.revert
};
}
Here is my editable (it is using the submitEdit function):
$(function () {
$('.editable').editable(submitEdit, {
indicator: '<img src="content/images/busy.gif">',
tooltip: '#Html.Resource("Strings,edit")',
cancel: '#Html.Resource("Strings,cancel")',
submit: '#Html.Resource("Strings,ok")',
event: 'edit'
});
/* Find and trigger "edit" event on correct Jeditable instance. */
$(".edit_trigger").bind("click", function () {
$(this).parent().prev().trigger("edit");
});
});
In submitEdit origvalue is the original value before the edit
function submitEdit(value, settings) {
var edits = new Object();
var origvalue = this.revert;
var textbox = this;
var result = value;
// sb experiment
var form = $(this).parents('form:first');
// end experiment
edits["field"] = form.find('input[name="field"]').val();
edits["value"] = value;
var returned = $.ajax({
url: '#Url.Action("AjaxUpdate")',
type: "POST",
data: edits,
dataType: "json",
complete: function (xhr, textStatus) {
// sever returned error?
// ajax failed?
if (textStatus != "success") {
$(textbox).html(origvalue);
alert('Request failed');
return;
}
var obj = jQuery.parseJSON(xhr.responseText);
if (obj != null && obj.responseText != null) {
alert(obj.responseText);
$(textbox).html(origvalue);
}
}
});
return (result);
}