Javascript confirm delete - php

Am creating a simple cms and i have the following
<input type="submit" value="delete" title="Delete Aricle(s)" id="delete_btn" onclick="delete_confirm()" />
<tbody>
<?php foreach ($articles as $article): ?>
<tr>
<td align="center">
<input id="article_id"name="article[]" type="checkbox" value="<?php echo $article->id; ?>" /></td>
<td align="center"><?php echo anchor('admin/articles/edit/'.$article->id,$article->title); ?></td>
<td align="center"><?php echo $article->author; ?></td>
<td align="center"><?php echo $article->category; ?></td>
<td align="center"><?php published($article->post_status); ?></td>
<td align="center"><?php featured($article->featured); ?></td>
<td align="center"><?php echo $article->views; ?></td>
<td align="center"><?php echo $article->post_date; ?></td>
</tr>
<?php endforeach;?>
</tbody>
The above code is wrapped in a form tag
This my javascript code
function delete_confirm() {
var msg = confirm('Are you sure you want to delete the selected article(s)');
if(msg == false) {
return false;
}
}
This is delete function in my controller
function articles_delete() {
//Load Model
$this->load->model("article_model");
//Assign article id to variable
$checkbox = $_POST['article'];
//loop through selected checkbox
for($i = 0; $i < count($checkbox); $i++) {
//Call delete method of the article model
$this->article_model->delete($checkbox[$i]);
}
$this->session->set_flashdata("message","Article(s) Deleted");
redirect("admin/articles","refresh");
}
But when cancel is clicked in the confirm dialog the form still is still submited and the selected article deleted.
Please advice on what to do

Try changing
<input type="submit" value="delete" title="Delete Aricle(s)" id="delete_btn" onclick="delete_confirm()" />
to
<input type="submit" value="delete" title="Delete Aricle(s)" id="delete_btn" onclick="return delete_confirm();" />
You're running the delete_confirm() function inside of the onclick function. you need to return false from the onclick() function itself.

try onSubmit instead of onClick.

What you'll want to do is something like this:
<form onsubmit="return delete_confirm();" ...>
<input ...>
</form>
When the form is submitted via the type="submit"-button, your delete_confirm()-function is called. If it returns true, the form is submitted. If it returns false, it's not.

Try using AJAX to call the PHP script from within Javascript.
This means set the input button type to button <input type="button" /> and change the onclick such that if cancel is pressed, return false (like what you did) or if OK is pressed, run the AJAX script and redirect the page if required...
You could write the AJAX server-side (PHP) script in a seperate file, and send in the paramters using $_GET.

delete_confirm() must always return false in your case.

You want the delete confirm function to be your onsubmit attribute of the form. Having it on the input element is not enough.

Maybe try to use:
Delete

Related

Pass Two values when a Submit button is clicked -PHP

This table is displaying details about my workload table per row. And when I click my "pre-View_attend" submit button I want to get the "WorkloadID" and "subjectID" of that workload row where the submit button was clicked.
Currently I have a hidden field containing the subject ID which is "subjectID_hidden", and when I try to get the "WorkloadID" and "subjectID" by using isset.
It seems that I can't accurately get the exact subject ID of the row where I've clicked the "pre-View_attend" submit button.
<tbody style="font-size:20px; text-align:center;">
<tr>
<td><?php echo $row["subjectName"]; ?></td>
<td><?php echo $row["className"]; ?></td>
<td><?php echo $row["RoomNumber"]; ?></td>
<td><?php echo $Sched_Days.'<br>'.$FST.' To '.$FET;?></td>
<td><button style="font-size:15px;" type="button" id="<?php echo $row["WorkloadID"]; ?>" class="btn btn-primary view_StudentList">View Student List</button></td>
<td><button style="font-size:15px;" type="submit" name="gettingAttendance" value="<?php echo $row["WorkloadID"]; ?>" class="btn btn-primary">Take Attendance</button></td>
<td><button style="font-size:15px;" type="submit" name="pre-View_attend" value="<?php echo $row["WorkloadID"]; ?>" class="btn btn-primary">View Attendance</button></td>
<input type="hidden" name="subjectID_hidden" value="<?php echo $row["subjectID"]; ?>">
</tr>
<?php } mysqli_close($connect);?>
</tbody>
/*
I'm getting the workload ID accurately, but the subject ID is incorrect.
I believe I'm getting the last subject ID that my query produced
*/
<?php
if(isset($_POST['pre-View_attend']))
{ $FWID=$_POST['pre-View_attend'];
$FSJID=$_POST['subjectID_hidden'];
echo"Workload ID: $FWID SubjectID: $FSJID";
}
?>
You get the last value because you have a bunch of hidden fields with the same name.
You could name them subjectID_hidden[<?=$row['WorkloadID'];?>] to get an array to then get the subjectID by WorkloadID:
$subjectID = $_POST["subjectID_hidden"][$_POST["pre-View_attend"]];
You need to query the table for something unique to the row you want to retrieve information from. This unqiue data should already be existing on the page, encoded into the button/form.
Example;
<?php
if(isset($_POST['pre-View_attend'])) {
global $db;
$select = "select * from mytable where unique='$unique'";
$connect = mysqli_query($db, $select);
while($row=mysqli_fetch_array($connect)) {
$myfirstVariable = $row['myfirstVariable'];
$mysecondVariable = $row['mysecondVariable'];
$show = "$myfirstVariable $mysecondVariable";
}
}
?>
Then you can call $show when you want in the HTML.
p.s. there are quite a few errors in your html like;
<input type="hidden" name="subjectID_hidden" value="<?php echo $row["subjectID"]; ?>">
should be
<input type="hidden" name="subjectID_hidden" value="<?php echo $row["subjectID"]; ?>" />
self closing at the end with forwards slash.

why if (isset($_POST['accept'])) not working?

i have small problem and i don't see any mistakes in my code and server also don't returns any errors but clouse if (isset($_POST['accept'])) doesn't recognize that button was clicked.And is it some way to get value of button id?Please Help.
include '../../config.php';
db_connect();
$zapytanie = "SELECT * FROM messages ORDER BY message_id DESC";
$r = mysql_query ($zapytanie) or die(mysql_error());
$war="L".$_SESSION['lekarz_id'];
echo $war;
if (isset($_POST['accept']))
{
echo "something";
}
else{
while ($row = mysql_fetch_array ($r))
{
if($war == $row['message_recipient'] AND !$row['message_title']=='LP' ){
echo $war;
print "<table border=2 width=98% align=center>
<tr><td><font size=1><p align=left>Od: {$row['message_recipient']}</td> <td><p align=right>Wysłana: {$row['date_of_posting']}</align></font></td></tr>
<tr><td><p align=left><font size=1>Do:{$row['message_sender']}</td><td><b><p align=right>Temat:{$row['message_title']}</align></b></td></tr>
<tr><td colspan=2><br /> {$row['message_text']}</align></font></td></tr>
</table><hr />";
}
else if($war == $row['message_recipient'] AND $row['message_title']=='LP'){
echo "
<form>
<table border=2 width=80%>
<tr>
<td>Od:Wysłana: {$row['date_of_posting']}</td>
<td><p align=center>Wysłana: {$row['date_of_posting']}</align></font></td>
</tr>
<tr>
<td><p align=center><font size=5>Do:{$row['message_sender']}</td><td><b><p align=right>Temat:{$row['message_title']}</align></b>
</td>
</tr>
<tr>
<td ><br /> <font size=5>{$row['message_text']}</align></font>
</td>
</tr>
<tr>";
$id = $row['message_sender'];
$id=substr($id, -1);
print'
<td>
<form action="messages.php" method="post">
<input type="submit" name="accept" value="accept" id=.{$id}./>
</form>
</td>
<td> </td>
</tr>
</table>
</form><hr />
';
}
}
db_close($db);
}
?>
You didn't explicitly set the form action to POST. As a result your form values willbe sent via GET.
Change:
<form>
to
<form method="POST">
Or look for for your value in the $_GET superglobal.
if (isset($_GET['accept']))
You also have a form embedded within a second form. Removing the outer form would also solve your problem.
Check for $_REQUEST['accept']. This combines $_GET, $_POST and $_COOKIE. It will contain the form value regardless of submission method.
http://www.php.net/manual/en/reserved.variables.request.php
I also have to mention, that it's not a good idea to use submit button value to send parameter. What if you need to write "Accept" instead of "accept" on your button?
if ($_POST['accept']=='accept') will fail for such button. Better practice is to use hidden field with name="accept" (<input type="hidden" name="accept" value="any_value" />) and let submit button to do what it has to do - to submit form.
Also it makes your form reusable
phpfidle

Is POST information from jquery $.post sent in parent page

I have a parent page which has a drop down list in it. using the onchange event, data is posted to a second page using $.post(). This page uses the posted variables to output mysql data with a checkbox for each line. This page output is then inserted into the parent page using jquery $('#DIV name').html(output).show();
The user can then see the mysql table rows with corresponding checkboxes. They then select the checkboxes they want and say delete. Delete is a form submit button.
My question is, when they click delete how do I take the form data from the second page and post it with that of the parent page so that I can then use $_POST[] to get the checkbox info and delete the selected table rows?
example of the parent page code is:
javascript/jquery
<script type="text/javascript">
function get(row){ //row being processed, defined in onchange="get(x)"
('getpeopleinjobs.php',{ //data posted to external page
postvarposition: form["position"+row].value, //variable equal to input box, sent to external page
postvarjob: form["job"+row].value, //variable equal to input box, sent to external page
postvarperson: form["person"+row].value, //variable equal to drop down list, sent to external page
postrow: row}, //variable equal row being processed, sent to external page
function(output){
$('#training'+row).html(output).show(); //display external results in row div
//popupWindow = window.open('t4.php?variable1Name=Vicki&variable2Name=Maulline','popUpWindow','height=400,width=1000,left=10,top=10,resizable=yes,scrollbars=yes,toolbar=no,menubar=no,location=no,directories=no,status=yes')
});
}
</script>
Form data is
<tr>
<td>
<?PHP echo $i; ?>
</td>
<td>
<input type=text NAME="position<?PHP echo $i; ?>" id="position<?PHP echo $i; ?>" style="border: 1px solid #2608c3;color:red; width=200px" value="<? echo mysql_result($resultpositionjob,$r,0);?>">
</td>
<td>
<input type=text NAME="job<?PHP echo $i; ?>" id="job<?PHP echo $i; ?>" style="border: 1px solid #2608c3;color:red; width=200px" value="<? echo mysql_result($resultpositionjob,$r,1);?>">
</td>
<td>
<SELECT NAME="person<?PHP echo $i; ?>" id="person<?PHP echo $i; ?>" style="border: 1px solid #2608c3;color:red; width=200px" onchange="get(<? echo $i; ?>);">
<OPTION VALUE=0 >
<?=$optionpeople?>
</SELECT>
</td>
<td onclick="train(<? echo $i; ?>);" style="color:grey; cursor: pointer;">
<div id="training<?PHP echo $i; ?>"><font color=grey size=2></div>
</td>
<td>
</td>
</tr>
<?PHP
$i++;
$r++;
}
?>
The second page or page called by jquery, the output is:
echo
"
<table border=0 width=400>
<tr>
<td width=20>
</td>
<td width=150>
<b>Position<b>
</td>
<td>
<b>Job<b>
</td>
</tr>
";
while($line = mysql_fetch_array($result))
{
echo "
<tr>
<td>
";
?>
<input type=checkbox name="delete[]" id="delete[]" value="<?php echo $rows['id']; ?>">
<?PHP
echo "
</td>
<td>
";
echo $line['position'];
echo "
</td>
<td>
";
echo $line['job'];
echo "
</td>
</tr>
";
}
?>
<tr>
<td>
<input type=submit name="update" id="update" value="Update">
</td>
</tr>
</table>
<?PHP
}
To repeat I want the table checkbox element from the second page posted with the form data of the parent page.
Is this possible as my testing hasnt given me any luck.
Am I doing something wrong or do I need to modify the jquery code?
Thanks as always for the assistance.
There is no second page. Really - you're loading HTML content from the second page, but it's being inserted into the parent page. All content, from your browsers perspective, is in the same page. The fields should be included as long as they're inside the DOM inside the element. Use the developer tools for your browser or Firebug for Firefox to make sure that the content is placed within the form element in the DOM. The developer tools should also be able to show you exactly which variables are submitted to the server when the form is submitted.
The 'action' parameter of 'form' will indicate where the content gets submitted (and it seems you've left that part out of your HTML, so it's impossible to say if you've left out or just not included it in the paste.

process hidden field with jquery and calculate

I have an html table I've updated to use checkboxes to be able to delete multiple files:
<table>
<thead>
<tr>
<th>Camera Name</th>
<th>Date Created</th>
<th>Video Size</th>
<th>Video Length</th>
<th>
<button type="submit" class="deletebutton" name="delete_video" value="Delete" title="Delete the selected videos" onClick="return confirm('Are you sure you want to delete?')">Delete</button><br>
<input type="checkbox" name="radioselectall" title="Select All" />
</th>
</tr>
</thead>
<tbody>
<?php
for($i=0;$i<$num_videos;$i++)
{
//do stuff
//Note: I'm looping here to build the table from the server
?>
<tr >
<td onclick="DoNav('<?php echo $url; ?>');">
<?php echo $result_videos[$i]["camera_name"]; ?>
</td>
<td onclick="DoNav('<?php echo $url; ?>');">
<?php echo setlocalTime($result_videos[$i]["video_datetime"]); ?>
</td>
<td onclick="DoNav('<?php echo $url; ?>');">
<?php echo ByteSize($result_videos[$i]["video_size"]); ?>
</td>
<td onclick="DoNav('<?php echo $url; ?>');">
<?php echo strTime($result_videos[$i]["video_length"]); ?>
</td>
<td>
<form name="myform" action="<?php echo htmlentities($_SERVER['REQUEST_URI']); ?>" method="POST">
<input type="checkbox" name="radioselect" title="Mark this video for deletion"/>
<input type="hidden" name="video_name" value="<?php echo $result_videos[$i]["video_name"]; ?>" />
</form>
</td>
</tr>
I started with first creating some jquery code to create a select all/deselect all button in the table heading and just a test to show I can find which boxes are checked. That all works:
//selectall checkboxes - select all or deselect all if top checkbox is marked in table header
$("input[name='radioselectall']").change(function()
{
if( $(this).is(':checked') )
{
$("input[type='checkbox']","td").attr('checked',true);
}
else
{
$("input[type='checkbox']","td").attr('checked',false);
}
});
//process checkboxes - which ones are on
$(".deletebutton").click(function() {
$("input[name='radioselect']:checked").each(function(i){
alert(this.value);
});
});
So the part where I'm stuck is I don't know where to go from here. I need to pass all the video_names of all the videos selected (with the checkboxes). video_name is part of a hidden field in my form. So I need to pass that to my php function when the delete button is selected. Not really sure how to tackle this. Hope this makes sense.
Simple solution maybe:
Change your checkboxes to have a value of 1 and a name of $result_videos[$i]["video_name"]; in the table rows, make the form encapsulate the whole table.
Then on submit you can do something like:
foreach ($_POST as $key => $value) {
//Delete $key (the name) where $value == 1
}
Your approach is fine if you want to access the hidden fields through jQuery at a given point but once you submit the form and lose the DOM, the PHP processing page will have no way to relate the selected checkboxes with the hidden fields as there is no consistent naming scheme.
One approach would be to use the loop counter to suffix the two in order to pair them up:
<input type="checkbox" id="radioselect_<?= $i ?>" title="Mark this video for deletion" value="1" />
<input type="hidden" id="video_name_<?= $i ?>" value="<?php echo $result_videos[$i]["video_name"]; ?>" />
This would be good if you want to relate more than the two fields. Otherwise, you could just use the video_name as the value of the checkbox, as Ing suggested.

Displaying a view fails

On a page I insert a button that will direct the user to another view (newview.ctp)
in the controller I create a function
function newview()
{
if($this->Session->read($this->_userName))
{
$this->loadSkinForAction();
$user = $this->user->findByUsername($this->Session->read('User'));
$this->set('item',$user);
}
}
In the page as I mention I simply insert a button this way
<input type="button" value="Change Your self" onclick="window.location.assign('../users/newview')" />
The view newview.ctp looks something like this
<?php
if(isset($item))
{
echo $form->create(null,array('url' => '/users/newview/'.$item['User']['id']));
}
?>
<h1>Change your password</h1>
<table>
<tr>
<td>New password</td>
<td><?php $form->password('password',$newPassword);?></td>
</tr>
<tr>
<td>Confirm password</td>
<td><?php echo $form->password('password_',$newPasswordConfirm);?></td>
</tr>
</table>
<?php
echo "<br/>";
echo $form->end('Save');
}?>
When i click the button in the page, it doesn't show the new page but a blank page instead,
Does the page which links to the "newview()" page need to be a HTML button? Or simply a link?
If it is a link, use CakePHP's Html helper functions. Link
<?php echo $this->Html->link('Change Password', '/users/newview'); ?>

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