feat(purchase): 物料搜索分页+价格半联动+图片必填校验

inventory-backend/app/api/v1/purchase.py

@@ -74,6 +74,11 @@ def create_purchase_request():
             if field not in data or str(data.get(field, '')).strip() == '':
                 return jsonify({'code': 400, 'msg': f'缺少必填字段: {field}'}), 400
 
+        # 图片必填强校验
+        images = data.get('images')
+        if not images or (isinstance(images, list) and len(images) == 0):
+            return jsonify({'code': 400, 'msg': '请上传采购凭证/物品图片'}), 400
+
         purchase = PurchaseService.create_purchase_request(data, requester_id=user_id)
 
         return jsonify({
@@ -200,3 +205,29 @@ def auto_fill_purchase():
         return jsonify({'code': 200, 'msg': 'ok', 'data': result}), 200
     except Exception as e:
         return jsonify({'code': 500, 'msg': str(e)}), 500
+
+
+# --------------------------------------------------------
+# 7. 物料基础信息搜索（分页）
+# GET /api/v1/purchase/search-material?keyword=xxx&page=1
+# --------------------------------------------------------
+@purchase_bp.route('/search-material', methods=['GET'])
+@jwt_required()
+def search_material_for_purchase():
+    """物料基础信息搜索接口，支持分页，用于采购申请弹窗"""
+    try:
+        keyword = request.args.get('keyword', '')
+        page = request.args.get('page', 1, type=int)
+        limit = 20
+
+        result = PurchaseService.search_base_material(keyword, page, limit)
+        return jsonify({
+            'code': 200,
+            'msg': 'success',
+            'data': result['items'],
+            'total': result['total'],
+            'has_next': result['has_next']
+        }), 200
+    except Exception as e:
+        traceback.print_exc()
+        return jsonify({'code': 500, 'msg': str(e)}), 500