How to display author name only on posts from specific categories

[swann83]

Hi,

I'm using Magazine Pro theme. I've customized the post info so I have [post_date], [post_comments] and [post_edit] in all categories and posts. Now I'm looking for a way to also display [post_author] in all posts from specific categories. And I want it to be displayed just in the default output of single posts – like this: [post_author], [post_date], [post_comments] and [post_edit] –, not in the homepage.

Thanks,

Swann

[Brad Dalton]

Try this https://my.studiopress.com/documentation/snippets/entry-header-html5/customize-the-entry-header/

You can use conditional tags to control which pages the code executes.

---

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[swann83]

Yes, thank you.

This is exactly my customization in my theme’s functions.php file:

add_filter( 'genesis_post_info', 'post_info_filter' );
function post_info_filter($post_info) {
$post_info = '[post_date] [post_comments] [post_edit]';
return $post_info;
}

I've tried to add this ("f1" is the category whose posts I want the author name to be displayed in) but it doesn't work:

add_filter( 'genesis_post_info', 'post_info_filter' );
if ( is_category('f1') ) {
$post_info = '[post_author] [post_date] [post_comments] [post_edit]';
return $post_info;
}

I'm not sure I'm good enough to use conditional tags but anyway I don't know if it could work for my purpose (I want author name not to be displayed in the homepage, above excerpts, but just in the single post).

Thanks.

[Brad Dalton]

Try in_category which is different to is_category

https://codex.wordpress.org/Conditional_Tags#A_Category_Page

---

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[swann83]

Unfortunately, it doesn't work:

add_filter( 'genesis_post_info', 'post_info_filter' );
if ( in_category('f1') ) {
$post_info = '[post_author] [post_date] [post_comments] [post_edit]';
return $post_info;
}

Any idea what I'm doing wrong here?

Thanks.

[Brad Dalton]

That should add the author on posts in category f1.

However, it may not work if you have a plugin active which uses the same hook ( Like Genesis Simple Edits ) or other conflicting code.

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[swann83]

I have Simple Hooks, that is very important for my site. Is it creating conflicts? How can I solve them?

[Brad Dalton]

Based on my testing, this code works:

add_filter( 'genesis_post_info', 'post_info_filter' );
function post_info_filter( $post_info ) {
if ( in_category('f1') ) {
$post_info = '[post_author]';
return $post_info;
    }
}

---

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[swann83]

Ok, it works only if I declare it once. If I use both of these codes then an error occurs: Cannot redeclare post_info_filter() (previously declared in....

add_filter( 'genesis_post_info', 'post_info_filter' );
function post_info_filter($post_info) {
$post_info = '[post_date] [post_comments] [post_edit]';
return $post_info;
}

add_filter( 'genesis_post_info', 'post_info_filter' );
function post_info_filter($post_info) {

if ( in_category('f1') ) {
$post_info = '[post_author] [post_date] [post_comments] [post_edit]';
return $post_info;
}

}

As I said I need [post_date] + [post_comments] + [post_edit] to be displayed in all categories and posts, by default, and also [post_author] in all posts from only two categories (F1 and News). And by the way, I need that info (post author) to be displayed just in the default output of single posts, not visible below the excerpts in the homepage.

Thanks,

Swann

[Brad Dalton]

You can use a else if statement.

Example :

if (condition) {
    code to be executed if condition is true;
} else {
    code to be executed if condition is false;
}

Or like this :

if (condition) {
    code to be executed if this condition is true;
} elseif (condition) {
    code to be executed if this condition is true;
} else {
    code to be executed if all conditions are false;
}

Or a ternary operator examples

---

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[swann83]

Great! It works.

What can I do to keep only author name from being displayed in excerpts in the homepage? I want to display it just in the single post view.

Thanks,

Swann

[Brad Dalton]

Link to your site please.

---

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[swann83]

https://www.ilveggente.it/

[Brad Dalton]

Use this 2nd method https://www.studiopress.community/topic/how-to-display-author-name-only-on-posts-from-specific-categories/#post-222998

---

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[swann83]

Sorry, how do I do that? The first method seems to be fine.

add_filter( 'genesis_post_info', 'post_info_filter' );
function post_info_filter($post_info) {

if ( in_category( array( 10,2640,4678,7084 ) )  ) {
$post_info = 'di <em>[post_author]</em> <br/> [post_date] [post_comments] [post_edit]';
return $post_info;
} else {
$post_info = '[post_date] [post_comments] [post_edit]';
return $post_info;
}

}

I just want the author name not to be visible in the homepage.

Thanks.

[Brad Dalton]

I wrote this for you https://wpsites.net/web-design/conditional-post-info/

You should be at a stage where you can work out the conditionals and use the following method :

if (condition) {
    code to be executed if this condition is true;
} elseif (condition) {
    code to be executed if this condition is true;
} else {
    code to be executed if all conditions are false;
}

Some work on this is required at your end.

---

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[swann83]

Thank you, braddalton. I appreciate it.

I'm sorry my English isn't good enough. I haven't been able to make it quite clear that I have very limited technical knowledge. I'm fairly satisfied with the current configuration, but it would be best if I could display the entry meta with authors name on single posts only (from those categories) and the standard entry meta without authors name (only date, comments and edit) in the entry header, including front and blog pages.

Thanks,

Swann

[Brad Dalton]

See here https://www.studiopress.community/topic/how-to-display-author-name-only-on-posts-from-specific-categories/#post-223011

---

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[swann83]

Ok, I wrote this and it works.

add_filter( 'genesis_post_info', 'post_info_filter' );
function post_info_filter($post_info) {
if ( in_category( array( 10,2640,4678,7084 ) ) AND ( is_single() ) ) {
$post_info = 'di <em>[post_author]</em> <br/> [post_date] [post_comments] [post_edit]';
} else {
$post_info = '[post_date] [post_comments] [post_edit]';
}
return $post_info;
}

Thank you so much for your time, braddalton.

Swann.

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