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WordPress

Maja B.
Maja B.
12,984 Points
Posted by Maja B.
Maja B.
12,984 Points

WordPress - Echo something just for chosen posts

Hi, is it possible in Wordpress to be inside a loop and say *If post_id is 7,10, 102 that write the following <a href=#>Read more</a>

Please see this sentence below in the code. There I need a special note but just for some posts.

Is it possible to do that? Its a loop inside a loop.

<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
    <div class="grid-container">

    <!-- Primary Column -->
        <div class="grid-4">
        <?php the_field( 'description' ); ?>

            If post_id is 7,10, 102 that write the following
            <a href=#>Read more</a>

        </div>

    <!-- Secondary Column -->
    <div class="grid-8">
        <?php the_field( 'project_images' ); ?>
   </div>

    </div>
<?php endwhile; endif; ?>

2 Answers

Andrew Shook
Andrew Shook
31,709 Points
Andrew Shook
Andrew Shook
31,709 Points

Maja, yes it is possible, but I'm not sure why you need to target these pages specifically. Could you explain the rationale behind way you need to do this?

In the mean time, you can check to see if a given post matches a post ID by using is_page, for pages only, and is_single, for everything except pages and attachments. Try this code:

<?
    // both is_page and is_single will accept an array, so we will store the special page id's in an array
    $special_pages = array(7, 10, 102);
    php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
    <div class="grid-container">

    <!-- Primary Column -->
        <div class="grid-4">
        <?php the_field( 'description' ); ?>

           <?php if( is_page($special_pages) || is_single($special_pages) ): //this is statement is only pass is the post matches 7, 10, or 102 ?>
            <a href='#'>Read more</a>
          <?php endif;?>
        </div>

    <!-- Secondary Column -->
    <div class="grid-8">
        <?php the_field( 'project_images' ); ?>
   </div>

    </div>
<?php endwhile; endif; ?>
Maja B.
Maja B.
12,984 Points
Maja B.
Maja B.
12,984 Points

Hi, the rational behind it is this: I'm making a portfolio page for my friend, a painter. The custom post items are his books. Some of these books can be bought at Amazon and elsewhere. Those will need a button that will say: Buy at Amazon or something like that. The others will not need that button. So what I need to do is to say to WordPress for the posts with an ID (or even better for the posts that have a custom filed value Buy checked as true, display the button, for others do not. Does it make sense?

Andrew Shook
Andrew Shook
31,709 Points
Andrew Shook
Andrew Shook
31,709 Points

Since you are already using Advanced Custom Fields, why don't you just make a field that will hold the url for the link. Then, check to if the field has text, and if it does print out a link. Try this:

<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
    <div class="grid-container">

    <!-- Primary Column -->
        <div class="grid-4">
        <?php the_field( 'description' ); ?>

           <?php if( get_field("book_link") ): ?>
            <a href='<?php the_field("book_link");?>'>Read more</a>
          <?php endif;?>
        </div>

    <!-- Secondary Column -->
    <div class="grid-8">
        <?php the_field( 'project_images' ); ?>
   </div>

    </div>
<?php endwhile; endif; ?>

Just replace "book_link" with whatever you name the field in ACF.

Maja B.
Maja B.
12,984 Points
Maja B.
Maja B.
12,984 Points

What an elegant solution! How come that I did not thought of it myself :))) I have quickly tested it in my code and it works. Great! Thanks!

Baruch Velez
Baruch Velez
275 Points
Baruch Velez
Baruch Velez
275 Points

The beauty of WordPress is the amount of built-in functions that make everyday problems have an easy solution. One of these functions is the get_the_excerpt() function which is a word-counted trim for posts. So if the post has more than x amount of words then it gets trimmed, and you can use the function to display the trimmed part. The following code was taken from the WP Codex.

You can use the following: 

<?php
$my_excerpt = get_the_excerpt();
if ( $my_excerpt != '' ) {
    // Some string manipulation performed
}
echo $my_excerpt; // Outputs the processed value to the page
?>

Source: http://codex.wordpress.org/Function_Reference/get_the_excerpt

Edit: You can also use wp_trim_exceprt(); explained here http://codex.wordpress.org/Function_Reference/wp_trim_excerpt

Maja B.
Maja B.
12,984 Points
Maja B.
Maja B.
12,984 Points

Hi, Baruch, I've only seen your reply today.

Thanks for directing me also to the get_the_excerpt() function.

I think I will need it very soon :)