admin: add AJAX fallback for wahl phase count; use ajax in force-zuteilung JS

includes/force-zuteilung.php

@@ -138,7 +138,21 @@ jQuery(function($){
     $(document).on("change", "#kc-force-wahl-dropdown", function(){
         var $w = $(this);
         var $phase = $w.closest("form").find("[name='phase']");
+        // try immediate refresh; if no data found, fallback to AJAX
+        var sel = $w.find('option:selected');
+        var einheiten = sel.data('einheiten') || kcWahlPhases[parseInt($w.val(),10)];
+        if (einheiten) {
             refreshPhaseSelect($w, $phase);
+        } else {
+            // AJAX fallback to ask server for anzahl_einheiten
+            $.get(ajaxurl, {action: 'kc_get_wahl', id: $w.val()}).done(function(r){
+                if (r && r.success && r.data && r.data.anzahl_einheiten) {
+                    // set data attribute so future reads find it
+                    sel.data('einheiten', parseInt(r.data.anzahl_einheiten,10));
+                }
+                refreshPhaseSelect($w, $phase);
+            }).fail(function(){ refreshPhaseSelect($w, $phase); });
+        }
     });
 
     // Initialize existing phase selects based on their selected wahl

konficastle-workshopwahl.php

@@ -1,4 +1,16 @@
 <?php
+// AJAX endpoint to return wahl details (anzahl_einheiten)
+add_action('wp_ajax_kc_get_wahl', function(){
+    global $wpdb;
+    $id = isset($_GET['id']) ? intval($_GET['id']) : 0;
+    if (!$id) {
+        wp_send_json_error('missing id');
+    }
+    $row = $wpdb->get_row($wpdb->prepare("SELECT id, COALESCE(anzahl_einheiten,1) as anzahl_einheiten FROM {$wpdb->prefix}kc_wahlen WHERE id=%d", $id));
+    if (!$row) wp_send_json_error('not found');
+    wp_send_json_success(['id'=>intval($row->id),'anzahl_einheiten'=>intval($row->anzahl_einheiten)]);
+});
+
 /**
  * Plugin Name: Workshop-Wahlen
  * Description: Workshop-Wahl-System für Konfi-Castle.com