correction doublons index Ajax + découplage slug categories couleurs

category.php

@@ -10,10 +10,10 @@ if ( ! is_user_logged_in() ) $excluded_ids[] = 9; // Vie du labo
 // Parent category slug for color theming
 if ($category->parent) {
     $parent_cat = get_category($category->parent);
-    $context['parent_slug'] = $parent_cat->slug;
+    $context['parent_slug'] = thalim_category_color_slug($parent_cat->term_id, $parent_cat->slug);
     $context['active_rubrique'] = $parent_cat->term_id;
 } else {
-    $context['parent_slug'] = $category->slug;
+    $context['parent_slug'] = thalim_category_color_slug($category->term_id, $category->slug);
     $context['active_rubrique'] = $category->term_id;
 }
 
@@ -227,6 +227,12 @@ if (!$is_direct && !empty($children)) {
 } else {
     $context['is_parent'] = false;
     $context['is_direct'] = $is_direct;
+
+    // Épinglés sortis du flux principal (et exclus de la pagination AJAX par thalim_load_more_posts),
+    // affichés dans un bloc dédié en tête. Garde l'initial et l'AJAX sur le même univers : sinon la
+    // fenêtre de pagination se décale et le post de la couture est dupliqué.
+    $pinned_ids = thalim_get_active_pinned_ids( $category->term_id );
+
     $query_args = array_merge([
         'post_type'               => 'post',
         'tax_query'               => [[
@@ -241,8 +247,23 @@ if (!$is_direct && !empty($children)) {
         'lang'                    => '',
         'thalim_event_date_order' => true,
     ], $extra_query_args);
-    $posts = $sort_with_pinned( Timber::get_posts($query_args) );
+    if ( $pinned_ids ) {
-    $context['cards'] = thalim_get_cards_data($posts);
+        $query_args['post__not_in'] = $pinned_ids;
+    }
+    $posts = Timber::get_posts($query_args);
+
+    // Pinned posts, respecting the active axe/date filters (so a pin outside the filter doesn't show).
+    $pinned_posts = $pinned_ids ? Timber::get_posts( array_merge([
+        'post_type'      => 'post',
+        'post_status'    => 'publish',
+        'post__in'       => $pinned_ids,
+        'orderby'        => 'post__in',
+        'posts_per_page' => -1,
+        'lang'           => '',
+    ], $extra_query_args ) ) : [];
+
+    $context['cards']        = thalim_get_cards_data($pinned_posts) + thalim_get_cards_data($posts);
+    $context['pinned_posts'] = $pinned_posts;
     $context['posts']        = $posts;
 }
 

functions.php

@@ -125,6 +125,24 @@ function thalim_cat_name( $cat, string $lang = null ): string {
     return ( $en !== '' && $en !== false ) ? $en : $fallback;
 }
 
+/**
+ * Clé couleur stable d'une catégorie racine, indexée sur le term_id (immuable)
+ * plutôt que sur le slug (que l'admin peut régénérer en renommant la catégorie).
+ * Renvoie la clé canonique attendue par les classes CSS .gradient--{clé} /
+ * .category--{clé} (_postcard.scss, _single.scss, _category.scss).
+ * Fallback sur le slug live pour toute racine hors des 5 rubriques connues.
+ */
+function thalim_category_color_slug( $root_term_id, $fallback_slug = '' ) {
+    $map = [
+        1 => 'le-laboratoire',
+        3 => 'manifestations-scientifiques',
+        4 => 'publications-et-productions',
+        5 => 'mediation-scientifique',
+        6 => 'ressources',
+    ];
+    return $map[ (int) $root_term_id ] ?? $fallback_slug;
+}
+
 // Register bilingual and en_url as Twig filters
 add_filter( 'timber/twig', function ( $twig ) {
     $twig->addFilter( new \Twig\TwigFilter( 'bilingual', 'thalim_bilingual' ) );
@@ -910,6 +928,41 @@ add_filter( 'login_redirect', function( $redirect_to, $requested, $user ) {
     return $redirect_to;
 }, 10, 3 );
 
+// Return the IDs of posts currently pinned ("épinglé dans la catégorie") in a given category.
+// A pin is active if epingler_dans_la_categorie == 1 AND date_de_fin_depinglage is empty/0000-00-00/future.
+// Shared by category.php (pull them out of the main flow) and the AJAX handler (exclude them from
+// pagination) so both sides stay in sync — a mismatch shifts the page boundary and dupes posts.
+function thalim_get_active_pinned_ids( $category_id ) {
+    if ( ! $category_id ) return [];
+    $today = date( 'Y-m-d' );
+    $pinned_query = new WP_Query([
+        'post_type'      => 'post',
+        'post_status'    => 'publish',
+        'posts_per_page' => -1,
+        'fields'         => 'ids',
+        'no_found_rows'  => true,
+        'lang'           => '',
+        'tax_query'      => [[
+            'taxonomy'         => 'category',
+            'field'            => 'term_id',
+            'terms'            => [ $category_id ],
+            'include_children' => false,
+        ]],
+        'meta_query'     => [[
+            'key'   => 'epingler_dans_la_categorie',
+            'value' => '1',
+        ]],
+    ]);
+    $pinned_ids = [];
+    foreach ( $pinned_query->posts as $pid ) {
+        $fin = get_post_meta( $pid, 'date_de_fin_depinglage', true );
+        if ( empty( $fin ) || $fin === '0000-00-00' || $fin >= $today ) {
+            $pinned_ids[] = $pid;
+        }
+    }
+    return $pinned_ids;
+}
+
 // AJAX handler for infinite scroll on category pages
 function thalim_load_more_posts() {
     check_ajax_referer('load_more_posts', 'nonce');
@@ -930,6 +983,7 @@ function thalim_load_more_posts() {
 
     $query_args = [
         'post_type'               => 'post',
+        'post_status'             => 'publish', // admin-ajax => is_admin() true: sans ça WP ajoute future/draft/pending et décale la pagination vs le front
         'posts_per_page'          => 12,
         'paged'                   => $page,
         'orderby'                 => 'date',
@@ -1005,33 +1059,10 @@ function thalim_load_more_posts() {
         $query_args['thalim_event_date_filter'] = ['from' => $date_from, 'to' => $date_to];
     }
 
-    // Exclude pinned posts on category pages to avoid duplicates (they already appear at the top)
+    // Exclude pinned posts on category pages to avoid duplicates (they already appear at the top,
+    // pulled out of the main flow by category.php). Must mirror category.php exactly.
     if ($category) {
-        $today = date( 'Y-m-d' );
+        $pinned_ids = thalim_get_active_pinned_ids( $category );
-        $pinned_query = new WP_Query([
-            'post_type'      => 'post',
-            'posts_per_page' => -1,
-            'fields'         => 'ids',
-            'no_found_rows'  => true,
-            'lang'           => '',
-            'tax_query'      => [[
-                'taxonomy'         => 'category',
-                'field'            => 'term_id',
-                'terms'            => [$category],
-                'include_children' => false,
-            ]],
-            'meta_query'     => [[
-                'key'   => 'epingler_dans_la_categorie',
-                'value' => '1',
-            ]],
-        ]);
-        $pinned_ids = [];
-        foreach ( $pinned_query->posts as $pid ) {
-            $fin = get_post_meta( $pid, 'date_de_fin_depinglage', true );
-            if ( empty( $fin ) || $fin === '0000-00-00' || $fin >= $today ) {
-                $pinned_ids[] = $pid;
-            }
-        }
         if ( ! empty( $pinned_ids ) ) {
             $query_args['post__not_in'] = $pinned_ids;
         }
@@ -1192,6 +1223,7 @@ function thalim_load_more_agenda() {
 
     $query_args = [
         'post_type'               => 'post',
+        'post_status'             => 'publish', // admin-ajax => is_admin() true: sans ça WP ajoute future/draft/pending et décale la pagination vs le front
         'posts_per_page'          => 12,
         'paged'                   => $page,
         'orderby'                 => 'date',
@@ -1292,7 +1324,7 @@ add_filter('posts_orderby', function ($orderby, $query) {
          . " WHEN thalim_ed.meta_value " . sprintf($valid, 'thalim_ed.meta_value', 'thalim_ed.meta_value') . " THEN thalim_ed.meta_value"
          . " WHEN thalim_dt.meta_value " . sprintf($valid, 'thalim_dt.meta_value', 'thalim_dt.meta_value') . " THEN thalim_dt.meta_value"
          . " ELSE {$wpdb->posts}.post_date"
-         . " END DESC";
+         . " END DESC, {$wpdb->posts}.ID DESC"; // tiebreaker déterministe: sans lui, les dates ex-æquo paginent de façon instable entre les requêtes séparées (initial vs AJAX)
 }, 10, 2);
 
 // Event date range filter: uses same CASE logic as ordering so date_de_debut/datetime take priority over post_date.

inc/post-card-helpers.php

@@ -99,7 +99,7 @@ function thalim_get_card_data($post_id) {
         } else {
             $root = $cat;
         }
-        $data['parent_slug']        = $root->slug;
+        $data['parent_slug']        = thalim_category_color_slug($root->term_id, $root->slug);
         $data['card_category_name'] = thalim_cat_name($cat);
         $data['card_category_url']  = get_category_link($cat->term_id);
         break;
@@ -132,7 +132,7 @@ function thalim_get_card_data($post_id) {
                     if (in_array($cat->term_id, $excluded_ids)) continue;
                     $ancestor_ids = get_ancestors($cat->term_id, 'category');
                     $root = !empty($ancestor_ids) ? get_category(end($ancestor_ids)) : $cat;
-                    $data['parent_slug'] = $root->slug;
+                    $data['parent_slug'] = thalim_category_color_slug($root->term_id, $root->slug);
                     break;
                 }
             }

inc/single-helpers.php

@@ -144,12 +144,12 @@ function thalim_get_single_data($post_id) {
         $ancestor_ids = get_ancestors($cat->term_id, 'category');
         if (!empty($ancestor_ids)) {
             $root = get_category(end($ancestor_ids));
-            $data['parent_slug'] = $root->slug;
+            $data['parent_slug'] = thalim_category_color_slug($root->term_id, $root->slug);
             $data['parent_name'] = $root->name;
             $data['parent_link'] = get_category_link($root->term_id);
             $data['category_name'] = $cat->name;
         } else {
-            $data['parent_slug'] = $cat->slug;
+            $data['parent_slug'] = thalim_category_color_slug($cat->term_id, $cat->slug);
             $data['parent_name'] = $cat->name;
             $data['parent_link'] = get_category_link($cat->term_id);
             $data['category_name'] = $lang === 'en' ? 'Other' : 'Autre';

templates/category.twig

@@ -85,6 +85,9 @@
                 {% else %}
                     <section class="subcategory-section">
                         <div class="post-grid" id="post-grid">
+                            {% for post in pinned_posts %}
+                                {% include 'partials/post-card.twig' with { post: post, card: cards[post.ID], show_category: true, type_only: true } %}
+                            {% endfor %}
                             {% for post in posts %}
                                 {% include 'partials/post-card.twig' with { post: post, card: cards[post.ID], show_category: true, type_only: true } %}
                             {% endfor %}