Load more without refreshing page [Wordpress] - php

I am using a WordPress plugin to load single post without refreshing the page, you can find it here: https://wordpress.org/plugins/read-more-without-refresh/
The plugin works perfectly fine when i use it's shortcode, it does exactly what i need it to do but here is the problem, I like to use it on all my post and this means i have to edit over 1000 post. Because i have some rules that i need to apply and there are some contents between the opening and closing shortcode elements , it gets tricky to use "do_shortcode"
Here is the shortcode: [read more="Click here to Read More" less="Read Less"] My Hidden Paragraphs Here [/read]
Here is what i want it to do: I need the plugin to apply the shortcode on all posts, after first 150 words and if the post has less than 150 words, it should do nothing.
Is there anyway i can do this? with php code or the already existing shortcode

You could probably use the_content filter but I haven't tested to see if it renders the shortcode or not.
function my_the_content_filter( $content ) {
if ( is_single() ) {
$word_count = str_word_count( strip_tags( $content ), 2 );
if( count( $word_count ) >= 150 ) {
$word = array_slice( $word_count, 150, 1, true );
$word_pos = key( $word );
$content = substr_replace( $content, '[read more="Click here to Read More" less="Read Less"]', $word_pos, 0 );
$content .= '[/read]';
}
}
return $content;
}
add_filter( 'the_content', 'my_the_content_filter' );

Related

Limit excerpt by characters in Wordpress

Right so this seems to have been asked a few times but I cannot seem to find definitive working answer.
Currently I am trying to limit my post title and post excerpt on my WP website.
I have managed to trim the titles by character using
function custom_trim_my_title( $title ) {
if ( strlen( $title ) >= 72 && ! is_singular() ) {
$title = substr( $title, 0, 72 ) . '...';
return $title;
}
return $title;
}
add_filter( 'the_title', 'custom_trim_my_title' );
And that seems to be working okay but I can't seem to get it to work for the excerpt.
I was using this word count:
function custom_excerpt_length( $length ) {
return 20;
}
add_filter( 'excerpt_length', 'custom_excerpt_length', 999 );
But the longer words still made it look messy so I need a character count and have tried this:
add_filter('the_excerpt','excerpt_char_limit');
function excerpt_char_limit($e){
return substr($e,0,50);
}
But it doesn't seem to work.
Any help would be great.
Try using
add_filter('the_excerpt','excerpt_char_limit',999);
instead. It is just in case if some other filter prevents your filter. (999 means executing later than other filters)

Moving Page/Post Titles outside the Loop in WordPress

I have a client site running on WordPress. It uses WooThemes Canvas as its base theme (with a customized child theme), and utilizes the Time.ly All-in-one-Event Calendar. It can be viewed here.
The design I came up with required me to move the page/post titles outside the main content area. I followed the instructions on this WooThemes customization document, and made modifications based on the comments so that it would also work for posts and the Time.ly event postings. The entries in my functions.php file looked like this:
add_filter( 'the_title', 'woo_custom_hide_single_post_title', 10 );
function woo_custom_hide_single_post_title ( $title ) {
if ( is_singular( array( 'post', 'ai1ec_event' ) ) && in_the_loop() ) { $title = ''; }
return $title;
} // End woo_custom_hide_single_post_title()
add_filter( 'the_title', 'woo_custom_hide_single_page_title', 10 );
function woo_custom_hide_single_page_title ( $title ) {
if ( is_page() && in_the_loop() ) { $title = ''; }
return $title;
} // End woo_custom_hide_single_page_title()
// Add Titles above Content Area on all Posts & Pages
add_action( 'woo_content_before_singular-post', 'woo_custom_add_title', 10 );
add_action( 'woo_content_before_singular-ai1ec_event', 'woo_custom_add_title', 10 );
add_action( 'woo_content_before_singular-page', 'woo_custom_add_title', 10 );
function woo_custom_add_title () {
if ( ! is_page_template(array('template-biz.php', 'template-brewpub.php')) ) {
global $post;
$title = '<h1 class="page-title">' . get_the_title( $post->ID ) . '</h1>' . "";
echo '<div id="title_container"><header class="col-full">';
echo $title;
woo_post_meta();
echo '</header></div>';
}
} // End woo_custom_add_post_title()
This produced some undesirable results, which can be seen on the DEV site I setup for this post (dev.thebrewworks.com):
Since the Time.ly event calendar also uses the_title to display it's events, in the three instances I used the calendar inside a page loop (the homepage and the two restaurant location pages), the event titles don't show up. This was confirmed by creating a Test Page (dev.thebrewworks.com/test-page), where you can see two instances of the calendar inside the loop, and one outside (in the sidebar). The two instances in the Loop have no titles, while the sidebar does.
Supressing the_title in the Loop didn't suppress the Post Meta, which still shows up in the main content area, but I want it under the title in the new DIV, so reposting woo_post_meta outside the Loop leaves me with two instances of the Post Meta.
In order to get the site live I had to make some concessions in my functions.php file:
// Hide Titles on All Posts & Pages
add_filter( 'the_title', 'woo_custom_hide_single_post_title', 10 );
function woo_custom_hide_single_post_title ( $title ) {
if ( is_singular( array( 'post', 'ai1ec_event' ) ) && in_the_loop() ) { $title = ''; }
return $title;
} // End woo_custom_hide_single_post_title()
add_filter( 'the_title', 'woo_custom_hide_single_page_title', 10 );
function woo_custom_hide_single_page_title ( $title ) {
if ( is_page() && in_the_loop() && is_page_template( array('page.php', 'template-contact.php' ) ) ) { $title = ''; }
return $title;
} // End woo_custom_hide_single_page_title()
// Add Titles above Content Area on all Posts & Pages
add_action( 'woo_content_before_singular-post', 'woo_custom_add_title', 10 );
add_action( 'woo_content_before_singular-ai1ec_event', 'woo_custom_add_title', 10 );
add_action( 'woo_content_before_singular-page', 'woo_custom_add_title', 10 );
function woo_custom_add_title () {
if ( ! is_page_template(array('template-biz.php', 'template-brewpub.php')) ) {
global $post;
$title = '<h1 class="page-title">' . get_the_title( $post->ID ) . '</h1>' . "";
echo '<div id="title_container"><header class="col-full">';
echo $title;
woo_post_meta();
echo '</header></div>';
}
} // End woo_custom_add_post_title()
// Disable Post Meta
function woo_post_meta() {}
?>
Note the changes:
I disabled the post_meta completely. Not exactly what I was looking for, but better than having it show up twice.
I modified the function that disables the page title so that it only works on pages that use certain templates (the three instances I mentioned above use the Business Template in Canvas that already suppresses the page title). This would require me to go in and add each new page template that I want to suppress the title on, though...and on top of that, it's not working. Take a look at the live site. The page title is showing up twice on static pages. Once inside the white content area and once outside in the yellow header.
I'm no PHP-developer...I'm more of an Design/HTML/CSS person. I know enough to be dangerous...how to modify existing code, etc., but not necessarily how to write my own from scratch. I have no idea if the way I came up with things is even the best/most elegant way to go about it. Now that you have all the facts, here are my questions:
In an ideal world, the Post Meta would ONLY show up on the blog entries (not on the calendar entries...no need for them there, really), and OUTSIDE the main content area underneath the page title that I moved. How can I achieve this? I'm guessing it's going to be some sort of conditional statement that removes the woo_post_meta from all instances inside the loop, and adds it to the woo_custom_add_title ONLY if it's a standard post, but how to get there I have no idea.
How can I suppress the_title that shows up at the top of the content area on ALL static pages, regardless of template, but have it not affect instances of the_title that appear elsewhere in the loop (like the calendar syndication). In my head there has to be a way to indicate that you ONLY want to disable the_title if it's in a certain div/id, etc., but again...only enough to be dangerous, unless I see it done elsewhere, I can't come up with the solution on my own.
Thanks in advance for your input.

Wordpress: How to link inline post images to the single post page

My client's landing page shows their blogroll. The first image you see on the site is the first image in their latest post. Their images are always linked to the image file by default. I've found a solution to change that default to link to none, but for past posts this isn't a good fix.
I've found this code which removes links to images from the post content:
add_filter( 'the_content', 'attachment_image_link_remove_filter' );
function attachment_image_link_remove_filter( $content ) {
$content = preg_replace( array('{<a(.*?)(wp-att|wp-content\/uploads)[^>]*><img}', '{ wp-image-[0-9]*" /></a>}'), array('<img','" />'), $content );
return $content;
}
This basically just removes the link from around the image.
I'm wondering how to, instead of removing the link entirely, link to the single post page? I think this would be a better solution because I think a lot of people probably click on that first image thinking it will take them to the single post page.
Is there a way to do this by modifying the code above in some way?
It's a bit hacky but something like this should work:
add_filter( 'the_content', 'attachment_image_link_remove_filter' );
function attachment_image_link_remove_filter( $content ) {
global $post;
$post_permalink = post_permalink($post->ID);
return preg_replace_callback( '#<a(?:.*?(?:wp-att|wp-content\/uploads)[^>]*)><img[^>]*></a>#i', function( $match ) use ( $post_permalink ) {
return preg_replace('#href="[^"]+"#', 'href="' . $post_permalink . '"', $match[0]);
}, $content );
}
It uses a callback function that then replaces the whole content of the href with post_permalink($post->ID).

Use "do_shortcode" in a WordPress plugin is not working

I have this plugin installed on my WordPress:
http://wordpress.org/plugins/put/
I’m trying to make a plugin that uses the UI Tabs plugin inside my own plugin.
My plugin code so far:
function load_jquery(){
echo '<link rel=\'stylesheet\' id=\'jquery-ui-tabs-css\' href=\'http://ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/themes/smoothness/jquery-ui.css?ver=1.9.2\' type=\'text/css\' media=\'all\' />';
}
add_action('wp_head','load_jquery');
function print_tabs(){
echo do_shortcode('[tab name="Tab"]-[/tab]');
echo do_shortcode('[end_tabset]');
}
add_shortcode('print_tabs', 'print_tabs');
Now if I use the [print_tabs] shortcode in a new page, it should look like this:
http://img835.imageshack.us/img835/4905/workingp.png
But it’s not working, and it looks like this:
http://imageshack.us/a/img62/9772/notworkingm.png
What could be the problem here?
The problem, from what I can see in put.php in the Post UI Tabs plugin is that the shortcodes are only added during the "the_content" filter in a function called "on_the_content".
add_filter( 'the_content', array( $this, 'on_the_content' ), 7 ); // Priority 7 - before wpautop
(line 96 of put.php)
And that function looks like:
public function on_the_content( $content ) {
$this->has_tabs = (bool) apply_filters( 'put_decide_has_tabs', $this->has_tabs );
if( !$this->has_tabs )
return $content;
global $shortcode_tags;
// Backup current registered shortcodes and clear them all out
$orig_shortcode_tags = $shortcode_tags;
$shortcode_tags = array();
add_shortcode( 'tab', array( $this, 'on_tab_shortcode' ) );
add_shortcode( 'end_tabset', array( $this, 'on_tab_end_shortcode' ) );
// Do the shortcode(only the tab shortcode is registered at this point)
$content = do_shortcode( $content );
// Put the original shortcodes back
$shortcode_tags = $orig_shortcode_tags;
return $content;
}
(starting at line 118 of put.php)
So, given how this plugin is written by modifying the content with a filter which in turn adds the shortcodes when that filter is run, what you're seeing is probably happening because when you call "do_shortcode" those shortcodes don't actually exist.
What echoing do_shortcode is doing then, is just coughing up the text.
Unfortunately, because of the way the Post UI Tabs plugin is written, you may not be able to do what you're trying to do.

How to modify page title in shortcode?

How do I modify a page title for specific pages in shortcode?
The following will change the title but it executes for every page. I need more control over where it executes.
function assignPageTitle(){
return "Title goes here";
}
add_filter('wp_title', 'assignPageTitle');
Is there a way to call the above in a shortcode function? I know how to use do_shortcode() but the above is a filter.
My goal is to modify the page title based on a URL parameter. This only happens for specific pages.
Although WordPress shortcodes was not designed to do this, it can be done. The problem is shortcodes are processed AFTER the head section is sent so the solution is to process the shortcode BEFORE the head section is sent.
add_filter( 'pre_get_document_title', function( $title ) {
global $post;
if ( ! $post || ! $post->post_content ) {
return $title;
}
if ( preg_match( '#\[mc_set_title.*\]#', $post->post_content, $matches ) !== 1 ) {
return '';
}
return do_shortcode( $matches[0] );
} );
add_shortcode( 'mc_set_title', function( $atts ) {
if ( ! doing_filter( 'pre_get_document_title' ) ) {
# just remove the shortcode from post content in normal shortcode processing
return '';
}
# in filter 'pre_get_document_title' - you can use $atts and global $post to compute the title
return 'MC TITLE';
} );
The critical point is when the filter 'pre_get_document_title' is done the global $post object is set and $post->post_content is available. So, you can find the shortcodes for this post at this time.
When the shortcode is normally called it replaces itself with the empty string so it has no effect on the post_content. However, when called from the filter 'pre_get_document_title' it can compute the title from its arguments $atts and the global $post.
Taken from the WordPress Codex
Introduced in WordPress 2.5 is the Shortcode API, a simple set of
functions for creating macro codes for use in post content.
This would suggest that you can't control page titles using shortcodes as the shortcode is run inside the post content at which point the title tag has already been rendered and is then too late.
What is it exactly that you want to do? Using the Yoast SEO Plugin you can set Post and Page titles within each post if this is what you want to do?
You could create your custom plugin based on your URL parameters as so:
function assignPageTitle(){
if( $_GET['query'] == 'something' ) { return 'something'; }
elseif( $_GET['query'] == 'something-else' ) { return 'something-else'; }
else { return "Default Title"; }
}
add_filter('wp_title', 'assignPageTitle');

Categories