Created
July 19, 2016 04:15
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WordPress code to reserve some top level Permalink slugs.
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<?php | |
/** | |
* Prevent top level permalink slugs that will cause conflicts. | |
* | |
* New rewrite slugs are introduced when CPTs or Custom Taxonomies are created. | |
* This code adds a check when Pages or Posts are created, that their Permalink | |
* does not conflict with one of the reserved top level slugs you define. | |
* | |
* In the case of a bad (i.e conflicting slug), WordPress appends a "-2" to | |
* the permalink. | |
*/ | |
add_filter( 'wp_unique_post_slug_is_bad_hierarchical_slug', 'fe_prevent_slug_conflict', 10, 4 ); | |
add_filter( 'wp_unique_post_slug_is_bad_flat_slug', 'fe_prevent_slug_conflict', 10, 3 ); | |
/** | |
* Is this a top level permalink slug that conflicts with a reserved slug. | |
* | |
* @param bool $is_bad_slug Is the slug being passed in already marked as a bad slug. | |
* @param string $slug The slug to be tested for uniqueness. | |
* @param string $post_type The post type the slug is going to be assigned to. | |
* @param int $post_parent_id (optional) When the slug is for a heirarchical post type, | |
* the post ID of the parent post. | |
* @return bool Does this slug conflict with an existing slug or reserved slug. | |
*/ | |
function fe_prevent_slug_conflict( $is_bad_slug, $slug, $post_type, $post_parent_id = 0 ) { | |
$reserved_top_level_slugs = apply_filters( | |
'fe_reserved_top_level_slugs', | |
array('recipes',) | |
); | |
if ( | |
// Only check top level post slugs (i.e. not child posts). | |
0 === $post_parent_id | |
&& in_array( $slug, $reserved_top_level_slugs ) | |
) { | |
$is_bad_slug = true; | |
} | |
return $is_bad_slug; | |
} |
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