Obtenez toutes les catégories et tous les messages de ces catégories

Je voulaisjuste ajouterma solution dérivée de cette question quej'avais. Celamet en cache la requêtepour les catégorieset met égalementen cache lespublications,y compris le contenu de lapublication,dans chaque catégorie. Lapremièrefois que le cacheest rempli,il y a des requêtes debase de donnéesnormales,mais unefois remplies,les catégorieset lesmessagesen cache sont servis,doncplus de requêtes debase de données.

 // Transients API all categories and all posts
$query_categories = get_transient('cached_categories');
if ( false === $query_categories){
    $args_cat = array(
        // order by category name ascending
        'orderby' => 'name',
        'order' => 'ASC',
        // get only top level categories
        'parent' => 0
    );
    // Instead of caching a WP Query I cache 'get_categories()'.
    $query_categories = get_categories($args_cat);
    // var_dump($query_categories);
    set_transient('cached_categories', $query_categories, DAY_IN_SECONDS );
}

// Full posts query
// if there are categories filled with posts
if (!empty ($query_categories) && !is_wp_error( $query_categories )) {

    foreach ($query_categories as $category) {

        // var_dump($category);
        $query_category_posts = get_transient('cached_posts_' . $category->slug );
        if ( false === $query_category_posts ){

            // Query all posts by slug inside each category
            $args_category_posts = array(
                'post_type' => 'post',
                // The category slug and category name we get from the foreach over all categories
                'category_name' => $category->slug
            );

            // Here I cache the WP_Query, though this runs for all categories.
            // Because of that the '$category->slug' is used to serve a string and not an object.
            $query_category_posts = new WP_Query($args_category_posts);         
            set_transient( 'cached_posts_' . $category->slug , $query_category_posts, DAY_IN_SECONDS );
        }

        if ($query_category_posts->have_posts()) {
            while ($query_category_posts->have_posts()) {
                $query_category_posts->the_post(); ?>
                <article class="<?php echo $category->slug ?>-article">
                    <h2 class="<?php echo $category->slug ?>-article-title">
                        <a href="<?php echo get_permalink() ?>"><?php echo get_the_title() ?></a>
                    </h2>
                    <p class="<?php echo $category->slug ?>-post-info">
                        <?php the_time('d. m. Y') ?>
                    </p>
                    <div <?php post_class() ?> >
                        <?php the_content(); ?>
                    </div>
                </article> <?php
            }
        } // end loop
    } // end foreach
wp_reset_postdata() ;
} // end if there are categories filled with posts
 

I just wanted to add my solution that derived from this question I had. This caches the query for the categories and also caches the posts, including the post content, in each category. The first time the cache is filled there are normal database queries, however once filled the cached categories and posts are served, so no more database queries.

// Transients API all categories and all posts
$query_categories = get_transient('cached_categories');
if ( false === $query_categories){
    $args_cat = array(
        // order by category name ascending
        'orderby' => 'name',
        'order' => 'ASC',
        // get only top level categories
        'parent' => 0
    );
    // Instead of caching a WP Query I cache 'get_categories()'.
    $query_categories = get_categories($args_cat);
    // var_dump($query_categories);
    set_transient('cached_categories', $query_categories, DAY_IN_SECONDS );
}

// Full posts query
// if there are categories filled with posts
if (!empty ($query_categories) && !is_wp_error( $query_categories )) {

    foreach ($query_categories as $category) {

        // var_dump($category);
        $query_category_posts = get_transient('cached_posts_' . $category->slug );
        if ( false === $query_category_posts ){

            // Query all posts by slug inside each category
            $args_category_posts = array(
                'post_type' => 'post',
                // The category slug and category name we get from the foreach over all categories
                'category_name' => $category->slug
            );

            // Here I cache the WP_Query, though this runs for all categories.
            // Because of that the '$category->slug' is used to serve a string and not an object.
            $query_category_posts = new WP_Query($args_category_posts);         
            set_transient( 'cached_posts_' . $category->slug , $query_category_posts, DAY_IN_SECONDS );
        }

        if ($query_category_posts->have_posts()) {
            while ($query_category_posts->have_posts()) {
                $query_category_posts->the_post(); ?>
                <article class="<?php echo $category->slug ?>-article">
                    <h2 class="<?php echo $category->slug ?>-article-title">
                        <a href="<?php echo get_permalink() ?>"><?php echo get_the_title() ?></a>
                    </h2>
                    <p class="<?php echo $category->slug ?>-post-info">
                        <?php the_time('d. m. Y') ?>
                    </p>
                    <div <?php post_class() ?> >
                        <?php the_content(); ?>
                    </div>
                </article> <?php
            }
        } // end loop
    } // end foreach
wp_reset_postdata() ;
} // end if there are categories filled with posts

essayezmaintenant ce code

 $cat_ids=array();
foreach (get_categories() as $cat)
{
    array_push($cat_ids, $cat->cat_ID);
}
$the_query = new WP_Query(array('post_type'=>'post', array('category__and' => $cat_ids) ) );
if( $the_query->have_posts() ): 
    while ( $the_query->have_posts() ) : $the_query->the_post(); 
        echo the_title();
    endwhile;
endif; 
wp_reset_query();
 

try now this code

$cat_ids=array();
foreach (get_categories() as $cat)
{
    array_push($cat_ids, $cat->cat_ID);
}
$the_query = new WP_Query(array('post_type'=>'post', array('category__and' => $cat_ids) ) );
if( $the_query->have_posts() ): 
    while ( $the_query->have_posts() ) : $the_query->the_post(); 
        echo the_title();
    endwhile;
endif; 
wp_reset_query();

Voicima solutionpour obtenir les catégorieset lesmessages dans ces catégoriesen un seul résultat.

Monexempleestbasé sur la catégorie detaxonomie detype depublicationpersonnalisée document_categoryet letype depublicationpersonnalisé documents. Maisje suis sûr que vous comprendrez l'idée.

 $result = [];

$categories = get_terms( [
    'taxonomy' => 'document_category'
] );

foreach ( $categories as $index => $category ) {
    $args      = [
        'post_type'      => 'documents',
        'posts_per_page' => - 1,
        'public'         => true,
        'tax_query'      => [
            [
                'taxonomy'         => 'document_category',
                'field'            => 'term_id',
                'terms'            => $category->term_id,
                'include_children' => true
            ]
        ]
    ];
    $documents = get_posts( $args );

    $result[ $index ]['category']  = $category;
    $result[ $index ]['documents'] = $documents;
}

return $result;
 

Here is my solution for getting the categories and the posts within those categories as one result.

My example is based on custom post type taxonomy category document_category and the custom post type documents. But i'm sure you will get the idea.

$result = [];

$categories = get_terms( [
    'taxonomy' => 'document_category'
] );

foreach ( $categories as $index => $category ) {
    $args      = [
        'post_type'      => 'documents',
        'posts_per_page' => - 1,
        'public'         => true,
        'tax_query'      => [
            [
                'taxonomy'         => 'document_category',
                'field'            => 'term_id',
                'terms'            => $category->term_id,
                'include_children' => true
            ]
        ]
    ];
    $documents = get_posts( $args );

    $result[ $index ]['category']  = $category;
    $result[ $index ]['documents'] = $documents;
}

return $result;

Vouspouvez utiliser ceci ... Définissez lenombre demessages dont vous avezbesoin ...

J'ai égalementtoutmis dans un div,pour que vouspuissiez créer la structureet la conception que vous recherchez.

 <?php  
    $allcats = get_categories('child_of=0'); 

    foreach ($allcats as $cat) :
        $args = array(
            'posts_per_page' => 3, // set number of post per category here
            'category__in' => array($cat->term_id)
        );

        $customInCatQuery = new WP_Query($args);

        if ($customInCatQuery->have_posts()) :
            echo '<div>';
            echo '<h3>'.$cat->name.'</h3>';
            echo '<ul>';
            while ($customInCatQuery->have_posts()) : $customInCatQuery->the_post(); ?>

            <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
        <?php
            endwhile; 
            echo '</ul></div>'; 
        ?>

<?php
        else :
            echo 'No post published in:'.$cat->name;                
        endif; 
        wp_reset_query();
    endforeach; 
?>
 

J'espère que cela vous aidera.

You can use this... Set the amount of posts you need...

Also I have put it all inside a div, so you can do the structure and design your looking for.

<?php  
    $allcats = get_categories('child_of=0'); 

    foreach ($allcats as $cat) :
        $args = array(
            'posts_per_page' => 3, // set number of post per category here
            'category__in' => array($cat->term_id)
        );

        $customInCatQuery = new WP_Query($args);

        if ($customInCatQuery->have_posts()) :
            echo '<div>';
            echo '<h3>'.$cat->name.'</h3>';
            echo '<ul>';
            while ($customInCatQuery->have_posts()) : $customInCatQuery->the_post(); ?>

            <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
        <?php
            endwhile; 
            echo '</ul></div>'; 
        ?>

<?php
        else :
            echo 'No post published in:'.$cat->name;                
        endif; 
        wp_reset_query();
    endforeach; 
?>

Hope this helps.

J'ai construit quelque chosepourmoi quej'utilisebeaucoup,voici le code,vouspouvez utiliser des slugs,desidentifiants ou leterme objet dans letableau $categories,si vous vouleztout obtenir les catégories que vouspouvez utiliser get_terms() ,et alimenter avec untas d'objets determe,mais attention,iln'y apas detraitementpour la hiérarchie sur ce code.

 $categories = array( 1, 'slug', 3 );
echo '<ul>';
foreach($categories as $category) {
    $term = ( is_numeric($category) || is_object($category) ? get_term( $category, 'category' ) : get_term_by( 'slug', $category, 'category' ) );
    $args = array(
        'cat' => $term->term_id
        // Add any other arguments to fit your needs
    );
    $q = new WP_Query( $args );
    if( $q->have_posts() ) {
        echo '<li><a href="' . get_term_link( $term->term_id, 'category' ) . '">' . $term->name . '</a><ul>';
        while( $q->have_posts() ) {
            $q->the_post();
            echo '<li><a href="' . get_permalink() . '">' . get_the_title() . '</a></li>';
        }
        echo '</ul></li>';
    } else {

    }
}
echo '</ul>';
 

I've build something for me that I use quite alot, here is the code, you can use slugs, ids or the term object in the $categories array, if you want to get all the categories you can use get_terms(), and feed with a bunch of term objects, but be careful, there is no treatment for hierarchy on this code.

$categories = array( 1, 'slug', 3 );
echo '<ul>';
foreach($categories as $category) {
    $term = ( is_numeric($category) || is_object($category) ? get_term( $category, 'category' ) : get_term_by( 'slug', $category, 'category' ) );
    $args = array(
        'cat' => $term->term_id
        // Add any other arguments to fit your needs
    );
    $q = new WP_Query( $args );
    if( $q->have_posts() ) {
        echo '<li><a href="' . get_term_link( $term->term_id, 'category' ) . '">' . $term->name . '</a><ul>';
        while( $q->have_posts() ) {
            $q->the_post();
            echo '<li><a href="' . get_permalink() . '">' . get_the_title() . '</a></li>';
        }
        echo '</ul></li>';
    } else {

    }
}
echo '</ul>';

Nontesté,mais l'une des approches lesplus simples quej'essaieraisest la suivante:

 <?php
    $category_ids = get_all_category_ids();
    foreach ($category_ids as $values) {
        $args = array('category' => $value);
        $posts_array = get_posts( $args );
        foreach ($posts_array as $post) : setup_postdata($post);
?> 
    <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php
        endforeach;
        wp_reset_query();
    }
?>
 

Untested, yet one of the simplest approaches I would try is the following:

<?php
    $category_ids = get_all_category_ids();
    foreach ($category_ids as $values) {
        $args = array('category' => $value);
        $posts_array = get_posts( $args );
        foreach ($posts_array as $post) : setup_postdata($post);
?> 
    <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php
        endforeach;
        wp_reset_query();
    }
?>

si vous recherchez unplugin, Répertoriez lesmessages de la catégorie pourraitfonctionnerpour vous.

Pour une requête,jetez un œil à get_posts

if you are looking for a plugin, List Category Posts might work for you.

Fore a query, take a look at get_posts