优化导入权重测试数据

server/app/dice/model/reward_config_record/DiceRewardConfigRecord.php

@@ -37,6 +37,7 @@ use think\model\relation\HasMany;
  * @property array $result_counts 落点统计 grid_number=>出现次数
  * @property array|null $tier_counts 档位出现次数 T1=>count
  * @property float|null $platform_profit 平台赚取金额（付费抽取次数×100-玩家总收益）
+ * @property array|null $bigwin_weight 测试时 BIGWIN 档位权重快照（JSON：grid_number=>weight）
  * @property int|null $admin_id 执行测试的管理员ID
  * @property string|null $create_time 创建时间
  */
@@ -55,7 +56,7 @@ class DiceRewardConfigRecord extends BaseModel
 
     protected $table = 'dice_reward_config_record';
 
-    protected $json = ['weight_config_snapshot', 'tier_weights_snapshot', 'result_counts', 'tier_counts', 'paid_tier_weights', 'free_tier_weights'];
+    protected $json = ['weight_config_snapshot', 'tier_weights_snapshot', 'result_counts', 'tier_counts', 'paid_tier_weights', 'free_tier_weights', 'bigwin_weight'];
 
     protected $jsonAssoc = true;
 
@@ -82,4 +83,31 @@ class DiceRewardConfigRecord extends BaseModel
             ->sum('win_coin');
         return round($paidCount * 100 - $sumWinCoin, 2);
     }
+
+    /**
+     * 根据关联的 DicePlayRecordTest 统计落点次数
+     * result_counts = [grid_number => 出现次数]，只统计 roll_number 在 5-30 之间的记录
+     * @param int $recordId
+     * @return array<int,int>
+     */
+    public static function computeResultCountsFromRelated(int $recordId): array
+    {
+        $rows = DicePlayRecordTest::where('reward_config_record_id', $recordId)
+            ->where('roll_number', '>=', 5)
+            ->where('roll_number', '<=', 30)
+            ->field('roll_number, COUNT(*) AS c')
+            ->group('roll_number')
+            ->select()
+            ->toArray();
+
+        $result = [];
+        foreach ($rows as $row) {
+            $grid = (int) ($row['roll_number'] ?? 0);
+            $cnt = (int) ($row['c'] ?? 0);
+            if ($grid > 0 && $cnt > 0) {
+                $result[$grid] = $cnt;
+            }
+        }
+        return $result;
+    }
 }