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* Update the search template with a card grid * Move all query modifications to a separate file * Limit the post types included in searches * Rename the query modification for all levels
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| <?php | ||
| /** | ||
| * Set up query modifications. | ||
| */ | ||
|
|
||
| namespace WordPressdotorg\Theme\Learn_2024\Query; | ||
|
|
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| add_action( 'pre_get_posts', __NAMESPACE__ . '\modify_archive_queries' ); | ||
| add_action( 'pre_get_posts', __NAMESPACE__ . '\modify_level_query' ); | ||
| add_action( 'pre_get_posts', __NAMESPACE__ . '\modify_search_query' ); | ||
|
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||
|
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| /** | ||
| * Modify the query by adding meta query for language if set. | ||
| * | ||
| * @param WP_Query $query The query object. | ||
| */ | ||
| function modify_archive_queries( $query ) { | ||
| // Ensure this code runs only for the main query on archive pages and search results. | ||
| if ( ! is_admin() && $query->is_main_query() && ( $query->is_archive() || $query->is_search() ) ) { | ||
| if ( isset( $_GET['language'] ) && is_array( $_GET['language'] ) ) { | ||
| $languages = array_map( 'sanitize_text_field', $_GET['language'] ); | ||
|
|
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| $meta_query = array( 'relation' => 'OR' ); | ||
|
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| $meta_query[] = array( | ||
| 'key' => 'language', | ||
| 'value' => $languages, | ||
| 'compare' => 'IN', | ||
| ); | ||
|
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| // If 'en_US' is included, include posts with no language defined | ||
| // as this is the default value for the meta field. | ||
| if ( in_array( 'en_US', $languages ) ) { | ||
| $meta_query[] = array( | ||
| 'key' => 'language', | ||
| 'compare' => 'NOT EXISTS', | ||
| ); | ||
| } | ||
|
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| $query->set( 'meta_query', $meta_query ); | ||
| } | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Modify the main query. | ||
| * If the 'all' level filter is set in the query, remove it to return all posts. | ||
| * | ||
| * @param WP_Query $query The main query. | ||
| * @return WP_Query | ||
| */ | ||
| function modify_level_query( $query ) { | ||
| if ( is_admin() || ! $query->is_main_query() ) { | ||
| return; | ||
| } | ||
|
|
||
| $level = $query->get( 'wporg_lesson_level' ); | ||
|
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| if ( 'all' === $level ) { | ||
| $query->set( 'wporg_lesson_level', '' ); | ||
| } | ||
|
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| return $query; | ||
| } | ||
|
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| /** | ||
| * Get a list of the searchable Learn post types. | ||
| * | ||
| * @return array The searchable post types. | ||
| */ | ||
| function get_searchable_post_types() { | ||
| return array( 'course', 'lesson', 'quiz', 'meeting', 'page', 'post', 'lesson-plan' ); | ||
| } | ||
|
|
||
| /** | ||
| * Modify the search query to filter to only Learn post types if no post type is set. | ||
| * | ||
| * @param WP_Query $query The search query. | ||
| */ | ||
| function modify_search_query( $query ) { | ||
| if ( is_admin() || ! $query->is_search() ) { | ||
| return; | ||
| } | ||
|
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| if ( isset( $query->query_vars['post_type'] ) ) { | ||
| return $query; | ||
| } | ||
|
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| $query->set( 'post_type', get_searchable_post_types() ); | ||
|
|
||
| return $query; | ||
| } |
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