How to display ACF fields with category posts

[Bart van Maanen]

I'm trying to get custom fields - made with Advanced Custom Fields plugin - show up properly on the front and. I would like to use category posts, i.e. Films (ID = 4). On the end of those post I like to have the credits of the film displayed., so only text with some css.

Most tutorials use a custom post type, so I was looking for some code using functions.php only.

Hoping to have found that in Jef Cohan's post I adapted his code like this:

//* Maak Advanced Custom Fields zichtbaar voor categorie Films

add_action ('genesis_entry_content', 'acf_film_credits' );

function acf_film_credits() {
	if ( ! ( is_single() && in_category('4') ) ) {
		return;
	}
	// else
	
	// These are the custom field keys defined in the ACF dashboard
	$metas_film = array(
		'titel', 
		'productie', 
		'regie', 
		'camera', 
		'muziek', 
		'producent'
		'cast');
	
	// If ANY of these fields is filled in, 
	// then we'll proceed and start the div.
	$has_meta = false; // init
	foreach ($metas_film as $test ) {
		if ( get_field($test) ) {
			$has_meta = true;
			continue; // Just need one meta field filled to create the div.
		}
	}

	if ( $has_meta ) {
		echo '<div class="film-credits">';
		echo '<h4> the_title(); </h4>';
		foreach ( $metas_film as $meta_film ) {
			$$meta_films = get_field($meta_film);
			if ( $$meta_film ) {
				$f_object = get_field_object($meta_film);
				$label = $f_object['label'];
				echo '<div class="' . $meta_film . '"><span class="label">' . 
				$label . ':</span> ' . 
				'<span class="value">' . $$meta_film . '</span></div>';
			}
		}
		echo '</div><!-- /.film_credits -->';
	}
}

But adding it to functions.php returned an 500 error and the site went down. Question 1: what went wrong here?

Besides this I have seen Bill Ericson's post about using the get_post_meta function instead of the get_field function from ACF. Makes sense too.

So, Question 2 : what code for displaying and styling these fields can help me out?

Thanks for your attention, Bart

[Genesis Developer]

in_category() is not a conditional function. So you are getting the 500 error. It would be is_category('4'). Try once.

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[Brad Dalton]

I'd find new code because that code has multiple errors plus it doesn't do what it says it does correctly.

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[Bart van Maanen]

Thanks @ Genesis Developer and @ Brad Dalton.

@ Brad Dalton: Do you have any suggestions for code or a tutorial that might help me along? Except hiring you? 🙂

[Brad Dalton]

Hi Bart

Yes. This is an example of how to print a custom field value

add_action( 'genesis_entry_content', 'cf' );
function cf() {
if ( ! is_single() && in_category( 'category-4' ) ) 
		return;
$cf = get_post_meta( get_the_ID(), 'title', true );
if( ! empty( $cf ) ) {
echo '<div class="cf-title">'. $cf .'</div>';
    }
}

You can use this code as a starting point.

The code prints the value for a custom field named title

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[Bart van Maanen]

Hi Brad,
Great, thanks, this code works fine.

add_action( 'genesis_entry_content', 'credits' );
function credits() {
if ( ! is_single() && in_category( 'films' ) ) 
		return;
$credits = get_post_meta( get_the_ID(), 'titel', true );
if( ! empty( $credits ) ) {
echo '<div class="credits-titel">'. $credits .'</div>';
	}
}

I was able to style the title in the css as well.

But as I have 7 ACF fields I would like to minimize the code and would like them in an array of some kind (with foreach ?). Or can I duplicate the section after "return;" for each field? I has to be conditional because sometimes fields are left blank.

And then style the lot of them like in a content box.

[Brad Dalton]

Yes, you can use get_post_meta for each field

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[Bart van Maanen]

Thanks Brad, you mean like this:

add_action( 'genesis_entry_content', 'credits' );
function credits() {
if ( ! is_single() && in_category( 'films' ) ) 
		return;
$credits = get_post_meta( get_the_ID(), 'titel', true );
$credits = get_post_meta( get_the_ID(), 'productie', true );
$credits = get_post_meta( get_the_ID(), 'regie', true );
if( ! empty( $credits ) ) {
echo '<div class="credits-titel">'. $credits .'</div>';
echo '<div class="credits-productie"> . $credits .'</div>';
echo '<div class="credits-regie"> . $credits .'</div>';
    }
}

[Brad Dalton]

Use unique variables for each field.

Example:

add_action( 'genesis_entry_content', 'credits' );
function credits() {
if ( ! is_single() && in_category( 'films' ) ) 
		return;
$title = get_post_meta( get_the_ID(), 'title', true );
$product = get_post_meta( get_the_ID(), 'product', true );
echo '<div class="credits-titel">'. $title .'</div>';
echo '<div class="credits-productie">' . $product .'</div>';
}

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[Bart van Maanen]

Sorry, missed your example, so my code was BS.
But can I leave out the empty statement as in your example?

if( ! empty( $credits ) ) {

[Brad Dalton]

You'll also need a check for each field:

if ( $credits-titel ) {
echo '<div class="credits-titel">'. $credits-titel .'</div>';
}

---

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[Bart van Maanen]

Allright, so the complete code per field to repeat is:

$titel = get_post_meta( get_the_ID(), 'titel', true );
if( ! empty( $titel ) ) {
echo '<div class="credits-titel">'. $titel .'</div>';

[Brad Dalton]

Yes however you also need to close the bracket

$titel = get_post_meta( get_the_ID(), 'titel', true );
if( ! empty( $titel ) ) {
echo '<div class="credits-titel">'. $titel .'</div>';
}

---

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[Bart van Maanen]

I've now tried to add the second field with bracket closed, like this:

add_action( 'genesis_entry_content', 'credits' );
function credits() {
if ( ! is_single() && in_category( 'films' ) ) 
		return;
$titel = get_post_meta( get_the_ID(), 'titel', true );
if( ! empty( $titel ) ) {
echo '<div class="credits-titel">'. $titel .'</div>';
}
$productie = get_post_meta( get_the_ID(), 'productie', true );
if( ! empty( $productie ) ) {
echo '<div class="credits-productie"> . $productie .'</div>';
}
}

Doing so I get a blank screen! In my code editor the last </div> changes color as in error?

This is an post I would like to have the credits on, now created with a Genesis content box: http://www.mokumfilm.nl/de-matthaus-missie-van-reinbert-de-leeuw/

You can see the title showing up below the social buttons.

[Brad Dalton]

Try this:

add_action( 'genesis_entry_content', 'credits' );
function credits() {
if ( ! is_single() && in_category( 'films' ) ) 
		return;
$titel = get_post_meta( get_the_ID(), 'titel', true );
if( ! empty( $titel ) ) {
echo '<div class="credits-titel">'. $titel .'</div>';
}
$productie = get_post_meta( get_the_ID(), 'productie', true );
if( ! empty( $productie ) ) {
echo '<div class="credits-productie">' . $productie .'</div>';
}
}

---

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[Bart van Maanen]

This reply has been marked as private.

[Bart van Maanen]

Hi Brad, above code seems to do the trick now. I have succesfully added the second and third field. Don't know why they didn't show up after refreshing the page. Visiting another page it popped up.

I am now wondering what the name of the div is or how to create it for styling it as a contentbox? Using .credits in style.css returns nothing.

Thanks for all your help. I really appreciate it.
Bart

[Brad Dalton]

Use exactly the same as you have printed in the PHP code for each field

.credits-titel

You could name the divs all the same if you want to style them all the same

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[Brad Dalton]

You could also code it like this:

add_action( 'genesis_entry_content', 'custom_field_credits' );
function custom_field_credits() {

if ( ! is_single() && in_category( 'films' ) ) 
		return;

    $title = genesis_get_custom_field( 'title' );
    $product = genesis_get_custom_field( 'product' );
	
if ( $title ) {
	printf( '<div class="credits">%s</div>', $title );
    }

if ( $product ) {
	printf( '<div class="credits">%s</div>', $product );
    }
}

---

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[Bart van Maanen]

Great thanks, is there an advantage using this?

Could that be wrapped in an content box with some margin and padding like over here: http://www.mokumfilm.nl/de-matthaus-missie-van-reinbert-de-leeuw/

In a way to get the title in <h4> and other info as regular text? I now have the title in <h4> in functions.php, but adding css for background-color gives white space in between title an text.

[Author]

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