acts_as_tree没有:include功能

最新推荐文章于 2024-07-23 13:02:42 发布
最新推荐文章于 2024-07-23 13:02:42 发布 · 118 阅读 · 0

本文探讨了在使用acts_as_tree时遇到的N+1查询问题，并提出了解决方案：通过增加has_many关联并使用include来优化查询。

很莫名，为什么acts_as_tree不提供:include接口，没有include，很容易造成n+1问题。

没办法，只好在acts_as_tree声明，后面再加上一个has_many声明，把include加上。

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ImportError Traceback (most recent call last) File D:\anaconda3\Lib\site-packages\tensorflow\python\pywrap_tensorflow.py:73 72 try: ---> 73 from tensorflow.python._pywrap_tensorflow_internal import * 74 # This try catch logic is because there is no bazel equivalent for py_extension. 75 # Externally in opensource we must enable exceptions to load the shared object 76 # by exposing the PyInit symbols with pybind. This error will only be 77 # caught internally or if someone changes the name of the target _pywrap_tensorflow_internal. 78 79 # This logic is used in other internal projects using py_extension. ImportError: DLL load failed while importing _pywrap_tensorflow_internal: 动态链接库(DLL)初始化例程失败。 During handling of the above exception, another exception occurred: ImportError Traceback (most recent call last) Cell In[12], line 5 3 import numpy as np 4 import pandas as pd ----> 5 from keras.models import Sequential, load_model 6 from tensorflow.keras import utils 7 from keras.preprocessing.sequence import pad_sequences File ~\AppData\Roaming\Python\Python311\site-packages\keras\__init__.py:7 1 """DO NOT EDIT. 2 3 This file was autogenerated. Do not edit it by hand, 4 since your modifications would be overwritten. 5 """ ----> 7 from keras import _tf_keras as _tf_keras 8 from keras import activations as activations 9 from keras import applications as applications File ~\AppData\Roaming\Python\Python311\site-packages\keras\_tf_keras\__init__.py:1 ----> 1 from keras._tf_keras import keras File ~\AppData\Roaming\Python\Python311\site-packages\keras\_tf_keras\keras\__init__.py:7 1 """DO NOT EDIT. 2 3 This file was autogenerated. Do not edit it by hand, 4 since your modifications would be overwritten. 5 """ ----> 7 from keras import activations as activations 8 from keras import applications as applications 9 from keras import callbacks as callbacks File ~\AppData\Roaming\Python\Python311\site-packages\keras\activations\__init__.py:7 1 """DO NOT EDIT. 2 3 This file was autogenerated. Do not edit it by hand, 4 since your modifications would be overwritten. 5 """ ----> 7 from keras.src.activations import deserialize as deserialize 8 from keras.src.activations import get as get 9 from keras.src.activations import serialize as serialize File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\__init__.py:1 ----> 1 from keras.src import activations 2 from keras.src import applications 3 from keras.src import backend File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\activations\__init__.py:3 1 import types ----> 3 from keras.src.activations.activations import celu 4 from keras.src.activations.activations import elu 5 from keras.src.activations.activations import exponential File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\activations\activations.py:1 ----> 1 from keras.src import backend 2 from keras.src import ops 3 from keras.src.api_export import keras_export File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\backend\__init__.py:1 ----> 1 from keras.src.backend.config import backend 3 if backend() == "torch": 4 # When using the torch backend, 5 # torch needs to be imported first, otherwise it will segfault 6 # upon import. 7 import torch File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\backend\config.py:448 445 else: 446 _NNX_ENABLED = False --> 448 set_nnx_enabled(_NNX_ENABLED) File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\backend\config.py:249, in set_nnx_enabled(value) 247 def set_nnx_enabled(value): 248 global _NNX_ENABLED --> 249 from keras.src.backend.common import global_state 251 _NNX_ENABLED = bool(value) 252 if _NNX_ENABLED: File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\backend\common\__init__.py:2 1 from keras.src.backend.common import backend_utils ----> 2 from keras.src.backend.common.dtypes import result_type 3 from keras.src.backend.common.variables import AutocastScope 4 from keras.src.backend.common.variables import Variable as KerasVariable File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\backend\common\dtypes.py:5 3 from keras.src.api_export import keras_export 4 from keras.src.backend import config ----> 5 from keras.src.backend.common.variables import standardize_dtype 7 BOOL_TYPES = ("bool",) 8 INT_TYPES = ( 9 "uint8", 10 "uint16", (...) 16 "int64", 17 ) File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\backend\common\variables.py:12 10 from keras.src.backend.common.stateless_scope import in_stateless_scope 11 from keras.src.utils.module_utils import tensorflow as tf ---> 12 from keras.src.utils.naming import auto_name 15 class Variable: 16 """Represents a backend-agnostic variable in Keras. 17 18 A `Variable` acts as a container for state. It holds a tensor value and can (...) 89 ``` 90 """ File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\utils\__init__.py:1 ----> 1 from keras.src.utils.audio_dataset_utils import audio_dataset_from_directory 2 from keras.src.utils.dataset_utils import split_dataset 3 from keras.src.utils.file_utils import get_file File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\utils\audio_dataset_utils.py:4 1 import numpy as np 3 from keras.src.api_export import keras_export ----> 4 from keras.src.utils import dataset_utils 5 from keras.src.utils.module_utils import tensorflow as tf 6 from keras.src.utils.module_utils import tensorflow_io as tfio File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\utils\dataset_utils.py:10 7 import numpy as np 9 from keras.src import backend ---> 10 from keras.src import tree 11 from keras.src.api_export import keras_export 12 from keras.src.utils import file_utils File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\tree\__init__.py:1 ----> 1 from keras.src.tree.tree_api import assert_same_paths 2 from keras.src.tree.tree_api import assert_same_structure 3 from keras.src.tree.tree_api import flatten File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\tree\tree_api.py:13 11 from keras.src.tree import torchtree_impl as tree_impl 12 elif optree.available: ---> 13 from keras.src.tree import optree_impl as tree_impl 14 elif dmtree.available: 15 from keras.src.tree import dmtree_impl as tree_impl File ~\AppData\Roaming\Python\Python311\site-packages\keras\src\tree\optree_impl.py:13 11 # Register backend-specific node classes 12 if backend() == "tensorflow": ---> 13 from tensorflow.python.trackable.data_structures import ListWrapper 14 from tensorflow.python.trackable.data_structures import _DictWrapper 16 try: File D:\anaconda3\Lib\site-packages\tensorflow\python\trackable\data_structures.py:26 22 except ImportError: 23 # Fall back to the build-time dependency if the system package is not available. 24 from .....third_party import wrapt # pylint: disable=relative-beyond-top-level ---> 26 from tensorflow.python.eager import def_function 27 from tensorflow.python.eager import function as defun 28 from tensorflow.python.ops import variables File D:\anaconda3\Lib\site-packages\tensorflow\python\eager\def_function.py:24 21 from tensorflow.python.eager.polymorphic_function.eager_function_run import functions_run_eagerly 23 # tf.function Classes ---> 24 from tensorflow.python.eager.polymorphic_function.polymorphic_function import Function 25 from tensorflow.python.eager.polymorphic_function.polymorphic_function import function 27 # Private attributes File D:\anaconda3\Lib\site-packages\tensorflow\python\eager\polymorphic_function\polymorphic_function.py:74 72 from google.protobuf.message import DecodeError 73 from tensorflow.core.framework import attr_value_pb2 ---> 74 from tensorflow.core.function import trace_type 75 from tensorflow.core.function.capture import capture_container 76 from tensorflow.core.function.polymorphism import function_cache File D:\anaconda3\Lib\site-packages\tensorflow\core\function\trace_type\__init__.py:28 1 # Copyright 2021 The TensorFlow Authors. All Rights Reserved. 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); (...) 13 # limitations under the License. 14 # ============================================================================== 15 """Trace-time type system for tf.function (TraceType). 16 17 Trace-time types describe things like tf.function signatures and type (...) 25 Other implementations of TraceType include tf.TypeSpec and its subclasses. 26 """ ---> 28 from tensorflow.core.function.trace_type.default_types import register_tensor_type 29 from tensorflow.core.function.trace_type.default_types import Weakref 30 from tensorflow.core.function.trace_type.serialization import deserialize File D:\anaconda3\Lib\site-packages\tensorflow\core\function\trace_type\default_types.py:26 24 from tensorflow.core.function.trace_type import serialization 25 from tensorflow.core.function.trace_type import util ---> 26 from tensorflow.python.types import trace 28 # Register the TraceType of Tensor (aka TensorSpec) to avoid cyclic dependency. 29 TENSOR = None File D:\anaconda3\Lib\site-packages\tensorflow\python\types\trace.py:34 31 from typing_extensions import Protocol 32 from typing_extensions import runtime_checkable ---> 34 from tensorflow.python.types import core 35 from tensorflow.python.util.tf_export import tf_export 36 from tensorflow.tools.docs import doc_controls File D:\anaconda3\Lib\site-packages\tensorflow\python\types\core.py:28 23 import numpy as np 25 from tensorflow.python.types import doc_typealias ---> 28 from tensorflow.python import pywrap_tensorflow # pylint: disable=unused-import, g-bad-import-order 29 from tensorflow.python.util.tf_export import tf_export 31 # pylint:disable=g-import-not-at-top File D:\anaconda3\Lib\site-packages\tensorflow\python\pywrap_tensorflow.py:88 86 sys.setdlopenflags(_default_dlopen_flags) 87 except ImportError: ---> 88 raise ImportError( 89 f'{traceback.format_exc()}' 90 f'\n\nFailed to load the native TensorFlow runtime.\n' 91 f'See https://www.tensorflow.org/install/errors ' 92 f'for some common causes and solutions.\n' 93 f'If you need help, create an issue ' 94 f'at https://github.com/tensorflow/tensorflow/issues ' 95 f'and include the entire stack trace above this error message.') 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