One person on the site wrote a function, but I do not know why it works. This function displays a random quote. The functions implemented the ability to download new quotes via AJAX (link New Quote), and it just does not work. Help please understand why. I myself can not understand this.
Sorry for my bad English.
The PHP
/wp-content/themes/%your_theme%/js/ajax-load-quote.php
<?php
/* uncomment the below, if you want to use native WP functions in this file */
// require_once('../../../../wp-load.php');
$array = file( $_POST['file_path'] ); // file path in $_POST, as from the js
$r = rand( 0, count($array) - 1 );
return '<p>' . $array[$r] . '</p>';
?>
The jQuery
/wp-content/themes/%your_theme%/js/ajax-load-quote.js
function ajaxQuote() {
var theQuote = jQuery.ajax({
type: 'POST',
url: ajaxParams.themeURI+'js/ajax-load-quote.php',
/* supplying the file path to the ajax loaded php as a $_POST variable */
data: { file_path: ajaxParams.filePath },
beforeSend: function() {
ajaxLoadingScreen(true,'#randomquotes');
},
success: function(data) {
jQuery('#randomquotes').find('p').remove();
jQuery('#randomquotes').prepend(data);
},
complete: function() {
ajaxLoadingScreen(false,'#randomquotes');
}
});
return theQuote;
}
/* Loading screen to be displayed during the process, optional */
function ajaxLoadingScreen(switchOn,element) {
/* show loading screen */
if (switchOn) {
jQuery(''+element).css({
'position': 'relative'
});
var appendHTML = '<div class="ajax-loading-screen appended">
<img src="'+ajaxParams.themeURI+'images/ajax-loader.gif"
alt="Loading ..." width="16" height="16" /></div>';
if( jQuery(''+element).children('.ajax-loading-screen').length === 0 ) {
jQuery(''+element).append(appendHTML);
}
jQuery(''+element).children('.ajax-loading-screen').first().css({
'display': 'block',
'visibility': 'visible',
'filter': 'alpha(opacity=100)',
'-ms-filter': '"progid:DXImageTransform.Microsoft.Alpha(Opacity=100)"',
'opacity': '1'
});
} else {
/* hide the loading screen */
jQuery(''+element).children('.ajax-loading-screen').css({
'display': '',
'visibility': '',
'filter': '',
'-ms-filter': '',
'opacity': ''
});
jQuery(''+element).css({
'position': ''
});
}
}
/* triggering the above via the click event */
jQuery('#newquotes').click( function() {
var theQuote = ajaxQuote();
return false;
});
functions.php
/wp-content/themes/%your_theme%/functions.php
function random_quote( $atts ) {
/* extracts the value of shortcode argument path */
extract( shortcode_atts( array(
'path' => get_template_directory_uri() . '/quotes.txt' // default, if not set
), $atts ) );
$array = file( $path );
$r = rand(0,count($array)-1);
$output = '<div id="randomquotes">' .
'<p>' . $array[rand(0,count($array)-1)] . '</p>' .
'</div>' .
'<a id="newquotes" class="button" href="#" title="Gimme a new one!">New Quote</a>';
/* supplying the file path to the script */
wp_localize_script(
'ajax-quote',
'ajaxParams',
array( 'filePath' => $path, 'themeURI' => get_template_directory_uri() . '/' )
);
return $output;
}
add_shortcode( 'randomquotes', 'random_quote');
/* loads the js */
function wpse72974_load_scripts() {
if ( ! is_admin() ) {
wp_register_script(
'ajax-quote', get_template_directory_uri() . '/js/ajax-load-quote.js',
array( 'jquery' ),
'1.0',
true
);
wp_enqueue_script( 'ajax-quote' );
/* supplying the theme URI to the script */
wp_localize_script(
'ajax-quote',
'ajaxParams',
array( 'themeURI' => get_template_directory_uri() . '/' )
);
}
}
add_action ( 'init', 'wpse72974_load_scripts' );
