I have working script that the user pletes inputs on a form and when they submit the form and the content of the form inputs are entered as a table row.
Is there any way of, I think within the JS to make each row have a unique ID and add a delete button to the last colum of each row so the user can delete an individual row.
Thanks for saving a life!!!!
HTML Form
<form id="my_form" action="table_form.php" method="post">
<div style="width:10%; float:left;">
Quantity<br />
<input name="field_1" type="text" id="field_1" size="3" />
</div>
<div style="width:20%; float:left;">
Part Number<br />
<input type="text" id="field_2" name="field_2" />
</div>
<div style="width:30%; float:left;">
Notes<br />
<input name="field_3" type="text" id="field_3" size="45" />
</div>
<div style="width:20%; float:left;">
Unit Price<br />
<input type="text" id="field_4" name="field_4" />
</div>
<div style="width:20%; float:left;">
<br />
<input type="submit" value="Add Row" />
</div>
</form>
<!--
Here we create our HTML table.
Note the ID of the table. This will be used in our javascript file
Our table only contains a header row. All other content will be added dynamically
--><? $rowid = 1; ?>
<table width="100%" id="my_table">
<tbody id="my_table_body">
<tr>
<th width="5%"><div align="left">Qty</div></th>
<th width="19%"><div align="left">Part Number</div></th>
<th width="46%"><div align="left">Notes</div></th>
<th width="15%"><div align="left">Unit Price</div></th>
<th width="15%"><div align="left">Row Total</div></th>
</tr>
</tbody>
</table>
JS
window.addEvent('domready', function(){
$('my_form').addEvent('submit', function(e){
e.stop();
this.set('send', {
onComplete: function( response ){
var data = JSON.decode(response);
inject_row( $('my_table_body'), data );
}
});
var valid_form = true;
$$('#my_form input').each(function(item){
if( item.value == '' ) valid_form = false;
});
if( valid_form ) {
this.send();
} else {
alert('Fill in all fields');
}
});
var inject_row = function( table_body, data ){
var row_str = '<tr width="100%">';
data.each( function(item, index){
row_str += '<td>'+item+'</td>';
});
row_str += '<td><input type="submit" name="deleterow" id="deleterow" value="Delete" /></td></tr>';
var newRow = htmlToElements( row_str );
newRow.inject( table_body );
}
var htmlToElements = function(str){
return new Element('div', {html: '<table><tbody>' + str + '</tbody></table>'}).getElement('tr');
}
});
PHP
<?php
/**
* If nothing is being posted to this script redirect to
* our HTML page.
*/
if( ! $_POST ){
header('Location: newquote.php');
}
// create an empty array for our results
$results = array();
/**
* Stick the values from _POST into our results array
* while also stripping out any html tags
*
* This is where you would perform any required processing
* of the form data such as server side validation or updating
* a database.
*/
foreach( $_POST as $field ){
$results[] = strip_tags( $field );
}
// Echo our results as a JSON encoded string.
echo json_encode( $results );
?>
I have working script that the user pletes inputs on a form and when they submit the form and the content of the form inputs are entered as a table row.
Is there any way of, I think within the JS to make each row have a unique ID and add a delete button to the last colum of each row so the user can delete an individual row.
Thanks for saving a life!!!!
HTML Form
<form id="my_form" action="table_form.php" method="post">
<div style="width:10%; float:left;">
Quantity<br />
<input name="field_1" type="text" id="field_1" size="3" />
</div>
<div style="width:20%; float:left;">
Part Number<br />
<input type="text" id="field_2" name="field_2" />
</div>
<div style="width:30%; float:left;">
Notes<br />
<input name="field_3" type="text" id="field_3" size="45" />
</div>
<div style="width:20%; float:left;">
Unit Price<br />
<input type="text" id="field_4" name="field_4" />
</div>
<div style="width:20%; float:left;">
<br />
<input type="submit" value="Add Row" />
</div>
</form>
<!--
Here we create our HTML table.
Note the ID of the table. This will be used in our javascript file
Our table only contains a header row. All other content will be added dynamically
--><? $rowid = 1; ?>
<table width="100%" id="my_table">
<tbody id="my_table_body">
<tr>
<th width="5%"><div align="left">Qty</div></th>
<th width="19%"><div align="left">Part Number</div></th>
<th width="46%"><div align="left">Notes</div></th>
<th width="15%"><div align="left">Unit Price</div></th>
<th width="15%"><div align="left">Row Total</div></th>
</tr>
</tbody>
</table>
JS
window.addEvent('domready', function(){
$('my_form').addEvent('submit', function(e){
e.stop();
this.set('send', {
onComplete: function( response ){
var data = JSON.decode(response);
inject_row( $('my_table_body'), data );
}
});
var valid_form = true;
$$('#my_form input').each(function(item){
if( item.value == '' ) valid_form = false;
});
if( valid_form ) {
this.send();
} else {
alert('Fill in all fields');
}
});
var inject_row = function( table_body, data ){
var row_str = '<tr width="100%">';
data.each( function(item, index){
row_str += '<td>'+item+'</td>';
});
row_str += '<td><input type="submit" name="deleterow" id="deleterow" value="Delete" /></td></tr>';
var newRow = htmlToElements( row_str );
newRow.inject( table_body );
}
var htmlToElements = function(str){
return new Element('div', {html: '<table><tbody>' + str + '</tbody></table>'}).getElement('tr');
}
});
PHP
<?php
/**
* If nothing is being posted to this script redirect to
* our HTML page.
*/
if( ! $_POST ){
header('Location: newquote.php');
}
// create an empty array for our results
$results = array();
/**
* Stick the values from _POST into our results array
* while also stripping out any html tags
*
* This is where you would perform any required processing
* of the form data such as server side validation or updating
* a database.
*/
foreach( $_POST as $field ){
$results[] = strip_tags( $field );
}
// Echo our results as a JSON encoded string.
echo json_encode( $results );
?>
- 1 "add a delete button to the last colum of each row so the user can delete an individual row" - Do you store the data server-side? Where does this delete operation take place? Server-side? Client-side? Both? – VolkerK Commented Jul 28, 2009 at 16:10
- Nope nothing is stored SS - and the operation would take place CS. Adding a delete button is pretty straight forward it is giving the row a unique id so the user can only delete the corresponding row when the delete button is pressed. Thanks for looking. – Bifter Commented Jul 28, 2009 at 16:15
- 1 Bifter, you don't need any IDs. When a button is pressed, simply traverse up the DOM to the nearest TR element and "delete" it... – James Commented Jul 28, 2009 at 17:28
- Hi J-P thanks for answering, JS is notmy strong suit - could you possibly showme within my code above? – Bifter Commented Jul 28, 2009 at 17:35
- just place a link like <a href="#" class="remove"> within a TD, then do $$("a.remove").addEvent("click", function(e) { new Event(e).stop(); this.getParent().dispose(); }); If within a div thats a child of a td, obviously do this.getParent().getParent().dispose(); to target the TR. – Dimitar Christoff Commented Jul 28, 2009 at 17:42
3 Answers
Reset to default 2I agree with J-P, it sounds like you don't need an unique id here.
Since the question is tagged "jquery" I suggest using the live event binding, e.g.
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis./ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready( function() {
$(".deleterow").live("click", function() {
$(this).parents("tr:first").remove();
});
});
function foo(id) {
$("#"+id).append('<tr><td>'+(new Date()).getSeconds()+'</td><td>x</td><button class="deleterow">delete</button></td></tr>');
}
</script>
</head>
<body>
<table id="t1">
<tr><td>a</td><td>A</td><td><button class="deleterow">delete</button></td></tr>
<tr><td>b</td><td>B</td><td><button class="deleterow">delete</button></td></tr>
<tr><td>c</td><td>C</td><td><button class="deleterow">delete</button></td></tr>
</table>
<button onclick="foo('t1')">add</button>
</body>
</html>
The function passed to $(document).ready() is invoked when ...well, as the name states, when the document (dom) is ready.
$(".deleterow").live("click", ... : Whenever a click event occurs on an element with the css class "deleterow" the function passed as second parameter is invoked. In this case
function() {
$(this).parents("tr:first").remove();
}
When the function is invoked the this-context is the element where the event occurred. parents("tr:first") returns the first/"nearest" tr element in the ancestor-axis of the current element. remove() is probably self-explaining...
edit: ok, now that the jquery tag is gone....
http://www.jaycarlson/blog/2009/04/06/live-events-in-mootools/ shows a live-event binding for mootools. Using that the "new" solution is quite similar to the jquery script
window.addEvent('domready', function() {
// add an onclick handler for all current and future button elements
// within the table id=t1
$('t1').addLiveEvent('click', 'button', function(e){
// a button in t1 has been clicked, this=button element
// get the "nearest" tr in the parent/ancestor-axis
// and remove it
$(this).getParent("tr").dispose();
});
});
This should be unique enough for this project:
var newDate = new Date;
var id = newDate.getTime();
Then it would just be a matter of adding it the row in your loop and linking it to your delete button.
I always use the php function uniqid(). It generates a unique id based on the time in microseconds. PHP Documentation.
You could loop through your results in PHP and add the result from uniqid() to each result before using json_encode().