Develop Reference

How do I hide the load more button for this jquery code

I am trying to make a website but I am very new to the jquery stuff and I added jquery load more comment into my website
My question is, I have a load more button that works the way I intended it to work however when all the data are loaded or when there is no comment I can't seem to get the load button to turn hidden
//jquery script
<script>
$(document).ready(function() {
var commentCount = 20;
var qidNow = "<?php echo $qid; ?>";
$("button").click(function() {
commentCount = commentCount + 20;
$("#comments").load("includes/load-comments.inc.php", {
commentNewCount: commentCount,
qid: qidNow
});
});
});
//load-comments page
<?PHP
require 'dbh.inc.php';
include 'function.inc.php';
$commentNewCount = $_POST["commentNewCount"];
$qid = $_POST["qid"];
$count = 0;
$sqlComment = "SELECT comment, commentTime, commenterId FROM comments WHERE commentOn = ?
LIMIT ?";
$stmtComment = mysqli_stmt_init($conn);
if (!mysqli_stmt_prepare($stmtComment, $sqlComment)) {
header("Location: ../viewtopic.php?error=sqlerror4");
exit();
} else {
//bind parameter to the placeholder
mysqli_stmt_bind_param($stmtComment, "ii", $qid, $commentNewCount);
//run parameter inside database
mysqli_stmt_execute($stmtComment);
$commentData = mysqli_stmt_get_result($stmtComment);
}
if (mysqli_num_rows($commentData) > 0) {
while ($row = mysqli_fetch_assoc($commentData)) {
$count++;
echo "<div class='individualComment'>";
echo "<div class='commentCount'> คอมเม้นที่" . $count . "</div>";
echo "<div class='actualComment'>" . $row['comment'] . "</div>";
echo "<div class='commentDateBx'>" . dateReformat($row['commentTime']) . "</div>";
echo "<div class='commenterIdBx'>ID :" . $row['commenterId'] . "</div>";
echo "</div>";
}
}else {
echo "There is no comment yet";
}

Dependent dropdown not working correctly

this is my first time on this site so I'll cut to chase.
I've been working on a fixed assets control web system using PHP, AJAX, jquery and MySQL as database (the project structure was made by following the tutorial from this website: https://www.itechempires.com/2016/07/pdo-crud-operations-using-php-bootstrap/ ), where such items are registered along with the categories to which each asset belongs, the transactions made by the users within the company and the reports generated by each transaction.
Currently I'm stuck with the dropdowns since I tried anything I could to make them work but without the results I've been looking for, which is:
in a modal there's a form where an asset is going to be added with its related information, two of those details are categories and subcategories which are handled by dependent dropdowns, the dropdown regarding to subcategories will be displayed once a category is selected.
The code snippets will be up for review which will be focused on the ones related to the dropdowns:
Tables
grupo (group or category)
id_grp (group id,autoincremented, not visible by the user)
codigo_grp (code)
nombre_grp (name)
subgeupo (subgroup or subcategory)
id_sgrp (subgroup id, autoincremented, not visible by the user)
codigo_sgrp (code)
nombre_sgrp (name)
vidaUtil_sgrp (useful life)
id_grp (group id, foreign key)
libAF.php: Contains all queries for crud operations
/*
* Get group's id and name
*
* #return $id_grp, $nombre_grp
* */
public function populateSelGrp()
{
$query = $this->db->prepare("SELECT id_grp, nombre_grp FROM grupo");
$query->execute();
$data = array();
while ($row = $query->fetch(PDO::FETCH_ASSOC)) {
$data[] = $row;
}
return $data;
}
/*
* Get sub-group's id and name
*
* #return $id_grp, $nombre_grp
* */
public function populateSelSgrp($id_grp)
{
$query = $this->db->prepare("SELECT * FROM subgrupo WHERE id_grp = :id_grp");
$query->bindParam("id_grp", $id_grp, PDO::PARAM_STR);
$query->execute();
$data = array();
while ($row = $query->fetch(PDO::FETCH_ASSOC)) {
$data[] = $row;
}
return $data;
}
populateSelGrp.php: loads the categories on to the parent dropdown
<?php
require 'libAF.php';
$data = "";
$object = new CRUD();
$grupos = $object->populateSelGrp();
$data .= '<select id="select_grp" class="form-control" onchange="populateSelSgrp()">';
$data .= '<option value="0" disabled selected>Escoja grupo</option>';
if (count($grupos) > 0) {
foreach ($grupos as $grupo) {
$data .= '<option id="selected_grp" value="' . $grupo['id_grp'] . '"> ' . $grupo['nombre_grp'] . '</option>';
}
}
else
{
$data .= '<option>No hay opciones disponibles</option>';
}
$data .= '</select>';
echo $data;
?>
populateSelSgrp.php: loads the subcategories on to the child dropdown
<?php
require 'libAF.php';
if (isset($_POST['id_grp']) && isset($_POST['id_grp']) != "") {
$id_grp = $_POST['id_grp'];
$data = "";
$object = new CRUD();
$subgrupos = $object->populateSelSgrp($id_grp);
$data .= '<label for="select_sgrp">Sub-grupo</label>';
$data .= '<select id="select_sgrp" class="form-control">';
$data .= '<option value="0" disabled selected>Escoja sub-grupo</option>';
if (count($subgrupos) > 0) {
foreach ($subgrupos as $subgrupo) {
$data .= '<option value="' . $subgrupo['id_sgrp'] . '"> ' . $subgrupo['nombre_sgrp'] . '</option>';
}
}
else
{
$data .= '<option>No hay opciones disponibles</option>';
}
$data .= '</select>';
echo $data;
}
?>
scptAF.js: Contains the scripts needed to make the inputs work
function populateSelGrp(){
$.get("ajax/activoFijo/populateSelGrp.php", {
},
function (data, status) {
//load options to dropdown list
$(".option_grp").html(data);
}
);
}
function populateSelSgrp(id_grp){
$.ajax({
url: "ajax/activoFijo/populateSelSgrp.php",
method: "POST",
data:{id_grp: id_grp},
success:function(data){
$(".option_sgrp").html(data);
}
})
}
activos.php (assets): visible page where the user adds, removes or updates an asset.
<div class="form-group">
<label for="select_grp">Grupo</label>
<div class="option_grp"></div>
</div>
<div class="form-group">
<div class="option_sgrp"></div>
</div>

I finally found a solution for this mess, was a little code I had to add to the javaScript file to send the id to the second dropdown. Although I finally fixed my problem, I'd like to see other suggestions on how to tackle this problem.
Here's my snippet
scptAF.js
function populateSelGrp() {
$.get("ajax/activoFijo/populateSelGrp.php", {
},
function (data, status) {
//load options to dropdown list
$(".option_grp").html(data);
}
);
}
function changeGrpId(){
var id_grp = document.getElementById("select_grp").value;
populateSelSgrp(id_grp);
}
function populateSelSgrp(id_grp) {
$.ajax({
url: "ajax/activoFijo/populateSelSgrp.php",
method: "POST",
data:{id_grp: id_grp},
success:function(data){
$(".option_sgrp").html(data);
}
})
}

Including bootstrap and js in php

I need a fresh pair of eyes to look at this!
I took code directly from one of of my old fiddles https://jsfiddle.net/RachGal/fs9u6mwe/1/ to display photos in a college galley site. However it only shows one. When i include bootstrap and the function in my php it doesn't seem to read it! Why could this be?
My php looks like this
<?php
echo "<html><head><meta charset='utf-8'>";
echo "<script type='text/javascript' src='scripts/bootstrap.js'></script>";
echo"<link rel='stylesheet' type='text/css' href='css/style.css'>";
include "scripts/show.php";
echo" <title>Gallery Display</title></head><body>";
echo "<header>";
echo "<h1>The Ultimate Gallery Compiler</h1>";
echo "<div id='menu'><a class='head' href='index.html'>Upload Photo</a> <a class='head' href='gallery.html'>Browse Gallery</a></div>";
echo "</header>";
echo "<div id='content'>";
echo "<h2>Browse Gallery</h2>";
$subfolder = $_POST["category"];
if ($subfolder == "0"){
echo("Please <a href='gallery.html'>go back</a> and select a category");
echo "</div><br><br>";
echo "<footer>";
echo "<p class='foot'>© Copyright 2015-2016 MMA2 Rachel Gallen, Ysabel Pheifer and Rebecca Merrigan.</p>";
echo "</footer>";
exit();
}
$countcontents = file_get_contents("categories.txt"); //read file to get count
$countarray = explode('*', $countcontents); //get count of each category into an array
$categories = array("fashion", "music", "sports", "technology", "animals", "health", "other");
//output title according to if the gallery has images in it or not
for($i=0; $i< count($countarray); $i++)
{
if ($subfolder == $categories[$i]){
if (intval($countarray[$i]) == 0) {
echo "<h3>No images have been uploaded for the " .$subfolder. " category yet</h3>";
}
else
{
echo "<h3>Here are the images for the " .$subfolder. " category</h3>";
echo "<p>There are ".$countarray[$i]." photos in this category</p><br>";
}
}
}
$folder = "images/".$subfolder."/";
// Open the appropriate subfolder, and display its contents.
// http://php.net/manual/en/function.opendir.php
// also referenced https://www.youtube.com/watch?v=nGLi4ykt__0
if ($dir = opendir($folder)) {
$images = array();
while (false !== ($file = readdir($dir))) {
if ($file != "." && $file != "..") {
$images[] = $file;
}
}
closedir($dir);
}
echo '<div id="slider">';
echo "<ul id='slides'>";
foreach($images as $image) {
echo '<li class="slide"><img src="';
echo $folder.$image;
echo '" alt=""/></img></li>';
}
echo "</ul>";
echo '</div>';
echo "<p>&nbsp</p><a href='gallery.html'>Reselect</a>";
echo "</div>";
echo "<footer>
<p class='foot'>© Copyright 2015-2016 MMA2 Rachel Gallen, Ysabel Pheifer and Rebecca Merrigan.</p>
</footer>";
echo "</body></html>";
?>
Any help would be appreciated!
by the way the javascript is
//Reference https://jsfiddle.net/RachGal/fs9u6mwe/1/
$(document).ready(function() {
//INDEX IMAGES SLIDER
$(function slider() {
//configuration
var width = 360;
var speed = 1000;
var pause = 3000;
var current = 1;
//cache DOM
var $slider = $('#slider');
var $slides = $slider.find('#slides');
var $slide = $slides.find('.slide');
setInterval(function() {
//move image the defined width and speed to the left
$slides.animate({
'margin-left': '-=' + width
}, speed, function() {
//count number of slides and loop back to first from last
current++;
if (current === $slide.length) {
current = 1;
$slides.css('margin-left', 0);
}
});
}, pause);
});
}
);

You have not included jQuery in your pages, you are using jQuery in your script but it is not loaded at all.
A nice way to find these things out is using the developer bar by pressing F12 when using chrome, then at network you can see which files were loaded and in console if there were any javascript errors.

WP archive with custom field filter

Hope someone can help.
I'm currently building a directory, and have used ACF to populate some data. I am now working toward building a filter for the options selected within one of my ACF groups, The field group is called 'Member Directory' the field I'm specifically targeting is: 'wha_service_offered'.
There are four checkbox values within this:
supplier : Supplier
manufacturer : Manufacturer
installer : Installer
consultant : Consultant
I have used checkbox as more than one option may apply to a member.
I have set up functions.php with the following:
// Filter Services
add_action('pre_get_posts', 'my_pre_get_posts');
function my_pre_get_posts( $query )
{
// validate
if( is_admin() )
{
return $query;
}
// allow the url to alter the query
// eg: http://www.website.com/members?wha_service_offered=installer
// eg: http://www.website.com/members?wha_service_offered=consultant
if( isset($_GET['wha_service_offered']) )
{
$query->set('meta_key', 'wha_service_offered');
$query->set('meta_value', $_GET['wha_service_offered']);
}
// always return
return $query;
}
And within my archive-members.php
php
<div id="search-services">
<?php
$field = get_field_object('wha_service_offered');
$values = isset($_GET['wha_service_offered']) ? explode(',', $_GET['wha_service_offered']) : array();
?>
<ul>
<?php foreach( $field['choices'] as $choice_value => $choice_label ): ?>
<li>
<input type="checkbox" value="<?php echo $choice_value; ?>" <?php if( in_array($choice_value, $values) ): ?>checked="checked"<?php endif; ?> /> <?php echo $choice_label; ?></li>
</li>
<?php endforeach; ?>
</ul>
</div>
javascript
<script type="text/javascript">
(function($) {
$('#search-services').on('change', 'input[type="checkbox"]', function(){
// vars
var $ul = $(this).closest('ul'),
vals = [];
$ul.find('input:checked').each(function(){
vals.push( $(this).val() );
});
vals = vals.join(",");
window.location.replace('<?php echo home_url('members'); ?>?wha_service_offered=' + vals);
console.log( vals );
});
})(jQuery);
</script>
When the filter is used it simply returns a blank page.
I would be grateful if anyone could point out where I have made an error.
Thanks.
--
So debug returns:
Declaration of Custom_Nav_Walker::start_el() should be compatible with
Walker_Nav_Menu::start_el(&$output, $item, $depth = 0, $args = Array, $id = 0) in
/Applications/MAMP/htdocs/website.com/wp-content/themes/wha/functions.php on line 169
Warning: Cannot modify header information - headers already sent by (output started at
/Applications/MAMP/htdocs/website.com/wp-content/themes/wha/functions.php:169) in
/Applications/MAMP/htdocs/website.com/wp-includes/pluggable.php on line 1179
The offending item is:
class Custom_Nav_Walker extends Walker_Nav_Menu {
function check_current($classes) {
return preg_match('/(current[-_])/', $classes);
}
function start_el(&$output, $item, $depth, $args) {
global $wp_query;
$indent = ($depth) ? str_repeat("\t", $depth) : '';
$slug = sanitize_title($item->title);
$id = apply_filters('nav_menu_item_id', 'menu-' . $slug, $item, $args);
$id = strlen($id) ? '' . esc_attr( $id ) . '' : '';
$class_names = $value = '';
$classes = empty($item->classes) ? array() : (array) $item->classes;
$classes = array_filter($classes, array(&$this, 'check_current'));
if ($custom_classes = get_post_meta($item->ID, '_menu_item_classes', true)) {
foreach ($custom_classes as $custom_class) {
$classes[] = $custom_class;
}
}
$class_names = join(' ', apply_filters('nav_menu_css_class', array_filter($classes), $item, $args));
$class_names = $class_names ? ' class="' . $id . ' ' . esc_attr($class_names) . '"' : ' class="' . $id . '"';
$output .= $indent . '<li' . $class_names . '>';
$attributes = ! empty($item->attr_title) ? ' title="' . esc_attr($item->attr_title) .'"' : '';
$attributes .= ! empty($item->target) ? ' target="' . esc_attr($item->target ) .'"' : '';
$attributes .= ! empty($item->xfn) ? ' rel="' . esc_attr($item->xfn ) .'"' : '';
$attributes .= ! empty($item->url) ? ' href="' . esc_attr($item->url ) .'"' : '';
$item_output = $args->before;
$item_output .= '<a'. $attributes .'>';
$item_output .= $args->link_before . apply_filters('the_title', $item->title, $item->ID) . $args->link_after;
$item_output .= '</a>';
$item_output .= $args->after;
$output .= apply_filters('walker_nav_menu_start_el', $item_output, $item, $depth, $args);
}
}
I'm not understanding why the walker nav would affect the filter?
--
Corrected line 169 error by amending the following from:
function start_el(&$output, $item, $depth, $args) {
To
function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0) {}
I now have the following errors:
Notice: Undefined index: choices in /Applications/MAMP/htdocs/website.com/wp-content/themes/wha/archive-members.php on line 54
Warning: Invalid argument supplied for foreach() in /Applications/MAMP/htdocs/website.com/wp-content/themes/wha/archive-members.php on line 54
Which relates to:
<?php foreach( $field['choices'] as $choice_value => $choice_label ): ?>

JS - jQuery Dynamic add remove Input Fields

I have a form where I add Input fields ( groups ) dynamically.
It is quite a complex form, and a PART can be seen here : FIDDLE
The actual error i get on the consul is :
Error: uncaught exception: query function not defined for Select2 s2id_autogen1
When I have fields already in the form ( the first two for example ) the EDIT and REMOVE button will work just fine .
My problem is that the REMOVE button ( styled input field ) is not working for the dynamically ADDED fields ( actually "appended" by JS and populated from PHP )
NOTE on code: I know the code is a mess :-(. It was inherited and will be cleaned soon.
it was copied and pasted from the HTML output.
The ADD , REMOVE and EDIT are actually styled like buttons ( too long and irrelevant to paste )
The actual source is PHP and it is spanning over multiple files ( so is the JS ) , and thus a bit too complicated to show here .
UPDATE : The code as per popular request :-)
public function show_field_repeater( $field, $meta ) {
global $post;
// Get Plugin Path
$plugin_path = $this->SelfPath;
$this->show_field_begin( $field, $meta );
$class = '';
if ($field['sortable'])
$class = " repeater-sortable";
echo "<div class='at-repeat".$class."' id='{$field['id']}'>";
$c = 0;
$meta = get_post_meta($post->ID,$field['id'],true);
if (count($meta) > 0 && is_array($meta) ){
foreach ($meta as $me){
//for labling toggles
$mmm = isset($me[$field['fields'][0]['id']])? $me[$field['fields'][0]['id']]: "";
echo '<div class="at-repater-block at-repater-block-'.$c.$field['id'].'"><h3>'.$mmm.'
<span class="at-re-remove">
<input id="remove-'.$c.$field['id'].'" class="buttom button-primary" type="submitkb" value="Remove '.$field['name'].'" accesskey="x" name="removek">
</span>';
echo '<script>
jQuery(document).ready(function() {
jQuery("#remove-'.$c.$field['id'].'").on(\'click\', function() {
var answer = confirm("Are you sure you want to delete this field ??")
if(!answer){
event.preventDefault();
}
jQuery(".at-repater-block-'.$c.$field['id'].'").remove();
});
});
</script>';
echo '<span class="at-re-toggle">
<input id="edit-'.$field['id'].'" class="buttom button-primary" type="" value="Edit '.$field['name'].'" accesskey="p" name="editk"></h3>
</span>
<span style="display: none;">
<table class="repeate-box wp-list-table widefat fixed posts" >';
if ($field['inline']){
echo '<tr class="post-1 type-post status-publish format-standard hentry category-uncategorized alternate iedit author-self" VALIGN="top">';
}
foreach ($field['fields'] as $f){
//reset var $id for repeater
$id = '';
$id = $field['id'].'['.$c.']['.$f['id'].']';
$m = isset($me[$f['id']]) ? $me[$f['id']]: '';
$m = ( $m !== '' ) ? $m : $f['std'];
if ('image' != $f['type'] && $f['type'] != 'repeater')
$m = is_array( $m) ? array_map( 'esc_attr', $m ) : esc_attr( $m);
//set new id for field in array format
$f['id'] = $id;
if (!$field['inline']){
echo '<tr>';
}
call_user_func ( array( &$this, 'show_field_' . $f['type'] ), $f, $m);
if (!$field['inline']){
echo '</tr>';
}
}
if ($field['inline']){
echo '</tr>';
}
echo '</table></span>
<span class="at-re-toggle"><img src="';
if ($this->_Local_images){
echo $plugin_path.'/images/edit.png';
}else{
echo 'http://i.imgur.com/ka0E2.png';
}
echo '" alt="Edit" title="Edit"/></span>
<img src="';
if ($this->_Local_images){
echo $plugin_path.'/images/remove.png';
}else{
echo 'http://i.imgur.com/g8Duj.png';
}
echo '" alt="'.__('Remove','mmb').'" title="'.__('Remove','mmb').'"></div>';
$c = $c + 1;
}
}
echo '<img src="';
if ($this->_Local_images){
echo $plugin_path.'/images/add.png';
}else{
echo 'http://i.imgur.com/w5Tuc.png';
}
echo '" alt="'.__('Add','mmb').'" title="'.__('Add','mmb').'" ><br/><input id="add-'.$field['id'].'" class="buttom button-primary" type="submitk" value="Add '.$field['name'].'" accesskey="q" name="addk"></div>';
//create all fields once more for js function and catch with object buffer
ob_start();
echo '<div class="at-repater-block">';
echo '<table class="wp-list-table repeater-table">';
if ($field['inline']){
echo '<tr class="post-1 type-post status-publish format-standard hentry category-uncategorized alternate iedit author-self" VALIGN="top">';
}
foreach ($field['fields'] as $f){
//reset var $id for repeater
$id = '';
$id = $field['id'].'[CurrentCounter]['.$f['id'].']';
$f['id'] = $id;
if (!$field['inline']){
echo '<tr>';
}
if ($f['type'] != 'wysiwyg')
call_user_func ( array( &$this, 'show_field_' . $f['type'] ), $f, '');
else
call_user_func ( array( &$this, 'show_field_' . $f['type'] ), $f, '',true);
if (!$field['inline']){
echo '</tr>';
}
}
$js_code2 ='<span class=\"at-re-remove\"><input id="remove-'.$c.$field['id'].'" class="buttom button-primary remove-'.$c.$field['id'].'" type="submi7" value="Removevv " accesskey="7" name="remove7"></span>';
if ($field['inline']){
echo '</tr>';
}
$js_code2 = str_replace("\n","",$js_code2);
$js_code2 = str_replace("\r","",$js_code2);
$js_code2 = str_replace("'","\"",$js_code2);
echo $js_code2;
echo '</table><img src="';
if ($this->_Local_images){
echo $plugin_path.'/images/remove.png';
}else{
echo 'http://i.imgur.com/g8Duj.png';
}
echo '" alt="'.__('Remove','mmb').'" title="'.__('Remove','mmb').'" ></div>';
$counter = 'countadd_'.$field['id'];
$js_code = ob_get_clean ();
$js_code = str_replace("\n","",$js_code);
$js_code = str_replace("\r","",$js_code);
$js_code = str_replace("'","\"",$js_code);
$js_code = str_replace("CurrentCounter","' + ".$counter." + '",$js_code);
echo '<script>
jQuery(document).ready(function() {
var '.$counter.' = '.$c.';
jQuery("#add-'.$field['id'].'").on(\'click\', function() {
'.$counter.' = '.$counter.' + 1;
jQuery(this).before(\''.$js_code.'\');
// jQuery("#'.$field['id'].'").append(\''.$js_code2.'\');
// alert(\''.$js_code2.'\');
update_repeater_fields();
});
});
</script>';
echo '<script>
jQuery(document).ready(function() {
jQuery(".remove-'.$c.$field['id'].'").on(\'click\', function() {
var answer = confirm("Are you sure you want to delete this field ??")
if(!answer){
event.preventDefault();
}
jQuery(".remove-'.$c.$field['id'].'").remove();
});
});
</script>';
echo '<br/><style>
.at-inline{line-height: 1 !important;}
.at-inline .at-field{border: 0px !important;}
.at-inline .at-label{margin: 0 0 1px !important;}
.at-inline .at-text{width: 70px;}
.at-inline .at-textarea{width: 100px; height: 75px;}
.at-repater-block{background-color: #FFFFFF;border: 1px solid;margin: 2px;}
</style>';
$this->show_field_end($field, $meta);
}

OK so as you've already been told, the live is deprecated.
Here's the fiddle of the solution: http://jsfiddle.net/y8JFb/2/
Basically give each new div that you dynamically create a unique ID based on your counter, then give data attribute to your remove counter which contains that ID.
Then you have your click handler:
$( document ).on( "click", ".at-re-remove", function( e ) {
$("#"+$(e.target).data("remove")).remove();
$(e.target).remove();
} );