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I have the following code working fine in my theme:

<!-- Modify query object -->
<?php query_posts('showposts=5&post_type=news'); ?>

<!-- Start the Loop -->
<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>

        <a href="<?php the_permalink(); ?>">
                if ( has_post_thumbnail() ) { // check if the post has a Post Thumbnail assigned to it.
                <?php the_title(); ?>

<!-- Stop The Loop -->
 <?php endwhile; else: ?>
 <p>Sorry, no posts matched your criteria.</p>
 <?php endif; ?>

<!-- Reset the Loop. -->
<?php rewind_posts(); ?>

I need to the number of posts to be based on a custom field.

I am not sure how to go about doing this.

My set-up: Page template: front-page.php

Homepage: set to the 'home' Page

Custom field: Custom field is in the 'Home' Page. I am using ACF plugin for custom fields


UPDATE: - screenshots included of my setup

Edit screen of the 'Home' Page Site settings screen Custom field setup using ACF plugin

share|improve this question
up vote 1 down vote accepted

Found an answer to my question using the ACF plugin get_field function (http://www.advancedcustomfields.com/resources/functions/get_field/) to retrieve the value of the custom field, save it as a variable and then use it as part of the query_post parameters:

<!-- Modify query object -->
$num_news = get_field("number_news", 523); // number of news items to feature
... rest of the code ...
share|improve this answer

First: Don't use query_posts

Next you need to add a custom field called 'posts_per_page' to your page.

Finally put this in your function.php while removing the query_posts call from your code.

function limit_home_query( $query ) {
    if ( is_home() && $query->is_main_query() ) {
        // Get the custom field ...
        $posts_per_page = intval(get_field('number_of_latest_news_items_to_promote_on_homepage'));
        // then get '$posts_per_page' posts...
        $query->set( 'posts_per_page', $posts_per_page );
        // ...of type 'news'
        $query->set( 'post_type', array( 'news' ) );
add_action( 'pre_get_posts', 'limit_home_query', 1 );
share|improve this answer
Thanks for your reply but I already have the custom field setup. My problem how do I use the field to control the number of posts in my query (point taken about not using query_posts but can we stick with it for now). – Abs Feb 20 '14 at 14:08
The code above should do everything you want. Please clarify what doesn't work for you. – kraftner Feb 20 '14 at 14:09
I won't be able to try the code till tonight but not sure where your code should go in relation to mine (in place of it? after it ? before it?). Also, I have other similar loops in the same template page (hence the rewind_posts), is this a problem? – Abs Feb 20 '14 at 14:25
Add the other loops to your question as this might be relevant. Also I updated my answer. – kraftner Feb 20 '14 at 14:28
Thank you, other loop exactly the same but pulling from another post type or a specific category but generally the same in terms of structure (again I won't be able to try code till tonight but I appropriate your help) – Abs Feb 20 '14 at 14:31

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