展示未分配数量

src/views/pms/PigBatchManagementView.vue

@@ -144,12 +144,18 @@ export default {
           const penWithDetails = {
             ...pen,
             house_name: this.houseMap.get(pen.house_id) || '未知猪舍',
-            batch_number: batchMap.get(pen.pig_batch_id)?.batch_number || null // 添加这一行
+            batch_number: batchMap.get(pen.pig_batch_id)?.batch_number || null
           };
           batchMap.get(pen.pig_batch_id).pens.push(penWithDetails);
         }
       }
-      return Array.from(batchMap.values());
+      // Calculate unassigned_pig_count for each batch using currentTotalQuantity and currentTotalPigsInPens
+      const assembledBatches = Array.from(batchMap.values());
+      assembledBatches.forEach(batch => {
+        // Use currentTotalQuantity and currentTotalPigsInPens directly from the batch object
+        batch.unassigned_pig_count = (batch.currentTotalQuantity || 0) - (batch.currentTotalPigsInPens || 0);
+      });
+      return assembledBatches;
     },
     // --- 猪群操作 ---
     handleAddBatch() {