|
Server : Apache System : Linux iad1-shared-b8-43 6.6.49-grsec-jammy+ #10 SMP Thu Sep 12 23:23:08 UTC 2024 x86_64 User : dh_edsupp ( 6597262) PHP Version : 8.2.26 Disable Function : NONE Directory : /lib/python3/dist-packages/django/db/models/__pycache__/ |
Upload File : |
o
3�a�_ � @ s d dl Z d dlZd dlZd dlmZ d dlmZ d dlZd dlm Z d dl
m Z d dl m
Z
d dlmZmZmZmZmZmZ d dlmZmZmZmZmZmZm Z d d l m Z m Z m Z m!Z!m"Z" d d
l#m$Z$ d d l%m&Z&m'Z' d d l(m)Z)m*Z* d d
l+m,Z,m-Z-m.Z.m/Z/ d dl0m1Z1 d dl2m3Z3 d dl4m5Z5 d dl6m7Z7m8Z8 d dl9m:Z:m;Z;m<Z<m=Z=m>Z> d dl?m@Z@ d dlAmBZB d dlCmDZD d dlEmFZFmGZG d dlHmIZJ G dd� d�ZKeK� ZLdd� ZMd d � ZNG d d � d eO�ZPG d d!� d!�ZQG d"d#� d#�ZRG d$d%� d%ePd&�ZSd0d'd(�ZTd)d*� ZUd+d,� ZVd-d.� ZWd/eW_XdS )1� N)�
partialmethod)�chain)�apps)�settings)�checks)�NON_FIELD_ERRORS�FieldDoesNotExist�
FieldError�MultipleObjectsReturned�ObjectDoesNotExist�ValidationError)�DEFAULT_DB_ALIAS�DJANGO_VERSION_PICKLE_KEY�
DatabaseError�
connection� connections�router� transaction)� NOT_PROVIDED�ExpressionWrapper� IntegerField�Max�Value��
LOOKUP_SEP)�CheckConstraint�UniqueConstraint)�CASCADE� Collector)�ForeignObjectRel�
OneToOneField�lazy_related_operation�resolve_relation)�Coalesce)�Manager)�Options)�F�Q)�class_prepared� post_init� post_save�pre_init�pre_save)�make_model_tuple)� force_str)�
make_hashable)�capfirst�
get_text_list)� gettext_lazyc @ s e Zd Zdd� Zdd� ZdS )�Deferredc C � dS �Nz<Deferred field>� ��selfr6 r6 �7/usr/lib/python3/dist-packages/django/db/models/base.py�__repr__+ � zDeferred.__repr__c C r4 r5 r6 r7 r6 r6 r9 �__str__. r; zDeferred.__str__N)�__name__�
__module__� __qualname__r: r< r6 r6 r6 r9 r3 * s r3 c C s t | ||d|j| f d��S )z�
Create exception subclass. Used by ModelBase below.
The exception is created in a way that allows it to be pickled, assuming
that the returned exception class will be added as an attribute to the
'attached_to' class.
z%s.%s)r> r? )�typer? )�name�bases�module� attached_tor6 r6 r9 �subclass_exception5 s �rE c C s t �| � o
t| d�S )N�contribute_to_class)�inspect�isclass�hasattr)�valuer6 r6 r9 �_has_contribute_to_classC s rK c sH e Zd ZdZ� fdd�Zdd� Zdd� Zedd � �Zed
d � �Z � Z
S ) � ModelBasezMetaclass for all models.c # s� t � j}dd� |D �}|s|| |||�S |�d�}d|i}|�dd �} | d ur+| |d< |�dd �}
i } |�� D ]\} }
t|
�rD|
| | < q7|
|| < q7|| |||fi |��}t|
dd�}|
pat|dd �}t|dd �}d }t�|�}t|d d �d u r�|d u r�|s�td
||f ��n|j }|�
dt ||�� |s�|�
d t d t
d d
� |D ��p�tf||d�� |�
dt dt
dd
� |D ��p�tf||d�� |r�|js�t|d�s�|j|j_t|d�s�|j|j_|jj}|r�|r�|jr�td||jf ��| �� D ]
\} }
|�
| |
� q�t|jj|jj|jj�}dd� |D �}|�rad }dd� |D �D ]-}|jj�r/|jj �r-td| ���q|d u �r8|}�q|jj |jj u�rGtd| ���q|d u �rTtd| ��|j� |� |jj |j_ n||j_ i }t |g| �D ]7}t|d��sx�qn||k�r�|jj�s��qn|jjD ]}t |t!��r�|j"j#�r�t$||j"j%�}||t&|�< �q��qnt'� } |�(� D �]}||v�s�t|d��s�| �)|j*� �q�|jj|jj } |jj�s6| D ]}|j+|v �r�t,d|j+||j-f ��| �.|j+� �q�|jj }t&|�} | |v �r�|| }n0|�s-d|jj/ } t!|t0| d d d �}| |v �r t,d | ||j-f ��t|| ��s,|�
| |� nd }||jj1|< nI|jj1�2� } | D ]9}|j+|v�rv|j+|j*v�rv|j+| v�rvt2�3|�}!|�
|j+|!� |j4�rv| �� D ]\}}"||"k�rt|!| |< �qg�q>|jj1�)| � |jjD ]/}|j+|v �r�|jj�s�t,d|j+||j-f ���q�t2�3|�}|jj�s�d |_5|�
|j+|� �q��q�d d� |jj6D �|j_6|�r�d|
_|
|_7|S |�8� |jj�9|jj:|� |S ) Nc S s g | ] }t |t�r|�qS r6 )�
isinstancerL )�.0�br6 r6 r9 �
<listcomp>O � z%ModelBase.__new__.<locals>.<listcomp>r> �
__classcell__�Meta�abstractF�_meta� app_labelzfModel class %s.%s doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.� DoesNotExistc s �( � | ]}t |d �r|jjs|jV qdS �rU N)rI rU rT rW �rN �xr6 r6 r9 � <genexpr>� � �
��
�z$ModelBase.__new__.<locals>.<genexpr>)rD r
c s rX rY )rI rU rT r
rZ r6 r6 r9 r\ � r] �ordering�
get_latest_byz'%s cannot proxy the swapped model '%s'.c S s h | ]}|j �qS r6 �rA �rN �fr6 r6 r9 � <setcomp>� s z$ModelBase.__new__.<locals>.<setcomp>c S s g | ] }t |d �r|�qS )rU )rI )rN �klsr6 r6 r9 rP � rQ zOAbstract base class containing model fields not permitted for proxy model '%s'.zAProxy model '%s' has more than one non-abstract model base class.z6Proxy model '%s' has no non-abstract model base class.zRLocal field %r in class %r clashes with field of the same name from base class %r.z%s_ptrT)� on_deleterA � auto_created� parent_linkztAuto-generated field '%s' in class %r for parent_link to base class %r clashes with declared field of the same name.c S s g | ]}t �|��qS r6 )�copy�deepcopy)rN �idxr6 r6 r9 rP 6 � );�super�__new__�pop�itemsrK �getattrr �get_containing_app_config� RuntimeError�label� add_to_classr% rE �tupler r
rT rI r^ rU r_ �proxy�swapped� TypeErrorr � local_fields�local_many_to_many�private_fields�fields�concrete_model� setup_proxy�reversedrM r � remote_fieldrg r" �modelr- �set�mro�update�__dict__rA r r= �add�
model_namer �parentsrh ri �
one_to_one�
mti_inherited�indexesrS �_prepare�register_modelrV )#�clsrA rB �attrs�kwargs� super_newr� rC � new_attrs� classcell� attr_meta�contributable_attrs�obj_name�obj� new_classrT �meta� base_metarV �
app_config�is_proxy�
new_fields� field_names�base�parent� parent_links�field�related�inherited_attributes�
parent_fields�base_key� attr_name� base_parents� new_fieldrg �� __class__r6 r9 rm J sz
������ ���
�
��
�
��
���
�
��� �
�
����
�zModelBase.__new__c C s( t |�r |�| |� d S t| ||� d S �N)rK rF �setattr)r� rA rJ r6 r6 r9 rt D s zModelBase.add_to_classc C s | j }|�| � |jr,t| jdd�| _t| jdd�| _|jjr,|j}|jj}t t
| |� | j du rBd| j d�
dd� |jD ��f | _ tj�|j�}|rQt| d |� |jsqtd
d� |jD ��retd | j ��t� }d|_| �d |� | j jD ]
}|js|� | � qut j | d
� dS )z7Create some methods once self._meta has been populated.T)�is_nextFNz%s(%s)�, c s � � | ]}|j V qd S r� r` ra r6 r6 r9 r\ _ � � z%ModelBase._prepare.<locals>.<genexpr>�get_absolute_urlc s s � | ]}|j d kV qdS )�objectsNr` ra r6 r6 r9 r\ f � � zOModel %s must specify a custom Manager, because it has a field named 'objects'.r� )�sender) rU r� �order_with_respect_tor � _get_next_or_previous_in_order�get_next_in_order�get_previous_in_orderr� r� r! � make_foreign_order_accessors�__doc__r= �joinr| r �ABSOLUTE_URL_OVERRIDES�get� label_lowerr� �managers�any�
ValueErrorr$ rf rt r� rA �set_name_with_modelr( �send)r� �opts�wrt�remote�get_absolute_url_override�manager�indexr6 r6 r9 r� J s:
" ��
�zModelBase._preparec C � | j jS r� )rU � base_manager�r� r6 r6 r9 �
_base_managerx � zModelBase._base_managerc C r� r� )rU �default_managerr� r6 r6 r9 �_default_manager| r� zModelBase._default_manager) r= r> r? r� rm rt r� �propertyr� r� rR r6 r6 r� r9 rL H s {.
rL c @ s e Zd Zddd�ZdS )� ModelStateFieldsCacheDescriptorNc C s |d u r| S i }|_ |S r� )� fields_cache)r8 �instancer� �resr6 r6 r9 �__get__� s
z'ModelStateFieldsCacheDescriptor.__get__r� )r= r> r? r� r6 r6 r6 r9 r� � s r� c @ s e Zd ZdZdZdZe� ZdS )�
ModelStatezStore model instance state.NT)r= r> r? r� �db�addingr� r� r6 r6 r6 r9 r� � s
r� c sh e Zd Z� fdd�Zedd� �Zdd� Zdd� Zd d
� Zd d � Z d
d� Z
dd� Z dd� Z dtdd�Z
dd� Zee
e�Zdd� Zdudd�Zd d � Z dvd d �Zd!e_ dwd"d#�Zd!e_d$d%� Z dxd&d'�Zd(d)� Zd*d+� Zd,d-� Zdyd.d/�Z d!e _d0d1� Z d2d3� Z d4d5� Z d6d7� Z d8d9� Z!dtd:d;�Z"dtd<d=�Z#d>d?� Z$d@dA� Z%dBdC� Z&dDdE� Z'dzdFdG�Z(dtdHdI�Z)edJdK� �Z*edLdM� �Z+edNdO� �Z,edPdQ� �Z-edRdS� �Z.edTdU� �Z/edVdW� �Z0edXdY� �Z1edZd[� �Z2ed\d]� �Z3ed^d_� �Z4ed`da� �Z5edbdc� �Z6eddde� �Z7edfdg� �Z8edhdi� �Z9edjdk� �Z:edldm� �Z;edndo� �Z<edpdq� �Z=edrds� �Z>� Z?S ){�Modelc sf | j }| j}t}t}|jrtd��tj|||d� t� | _ t
|�t
|j �kr*t d��|sHt
|j �}t||�D ]\}} ||u r?q6|| | j|� q6n"t
|j�}t||�D ]\}} ||u r[qR|| | j|� |�| jd � qR|D ]t} d}
| j|vr{| jd u r{ql|r�t| jt�r�z
|�| j�} d}
W n9 ty� z|�| j�}W n
ty� | �� }Y nw Y nw z|�| j�}W n ty� | �� }Y nw | �� }|
r�| |ur�|| | j| � ql||ur�|| | j|� ql|�r%|j} t|�D ],}
z |
| v s�|�|
��r
||
|u�r|| |
||
� ||
= W q� t t f�y Y q�w |D ]
}td|j |f ��t � � � t!j|| d� d S )Nz'Abstract models cannot be instantiated.)r� �argsr� z'Number of args exceeds number of fieldsFTz,%s() got an unexpected keyword argument '%s')r� r� )"r� rU r� �DEFERREDrT rx r+ r� r� �_state�len�concrete_fields�
IndexError�iter�zip�attnamer| rn rA �columnrM r� r �KeyError� get_default�_property_namesru � get_field�AttributeErrorr r= rl �__init__r) )r8 r� r� r� r� �_setattr� _DEFERRED� fields_iter�valr� �is_related_object�rel_obj�property_names�prop�kwargr� r6 r9 r� � s�
�
��� ��� ��
zModel.__init__c sP t |�t | jj�krt|��� �fdd�| jjD �}| |� }d|j_||j_|S )Nc s" g | ]
}|j � v r
t��nt�qS r6 )r� �nextr� ra �r� � values_iterr6 r9 rP � s ��z!Model.from_db.<locals>.<listcomp>F)r� rU r� r� r� r� r� )r� r� r� �values�newr6 r� r9 �from_db� s �z
Model.from_dbc C s d| j j| f S )Nz<%s: %s>)r� r= r7 r6 r6 r9 r: s zModel.__repr__c C s d| j j| jf S )Nz%s object (%s))r� r= �pkr7 r6 r6 r9 r< s z
Model.__str__c C sB t |t�stS | jj|jjkrdS | j}|d u r | |u S ||jkS �NF)rM r� �NotImplementedrU r} r� )r8 �other�my_pkr6 r6 r9 �__eq__ s
z Model.__eq__c C s | j d u r td��t| j �S )Nz8Model instances without primary key value are unhashable)r� rx �hashr7 r6 r6 r9 �__hash__ s
zModel.__hash__c C s. | � � }tj|t< | jj| jjf}t|f|fS r� )� __getstate__�django� __version__r rU rV � object_name�model_unpickle)r8 �data�class_idr6 r6 r9 �
__reduce__ s
zModel.__reduce__c C s� | j �� }t�|d �|d< |d j�� |d _g }|�� D ]\}}t|t�r0|�|t|�f� q |rC||d< |D ] \}}|�|� q9|S )z0Hook to allow choosing the attributes to pickle.r� �_memoryview_attrs) r� rh r� ro rM �
memoryview�append�bytesrn )r8 �stater �attrrJ r6 r6 r9 r # s
� zModel.__getstate__c C s| |� t�}|r|tjkrtjd|tjf tdd� ntjdtdd� d|v r6|�d�D ]
\}}t|�||< q+| j �
|� d S )NzQPickled model instance's Django version %s does not match the current version %s.� )�
stacklevelz9Pickled model instance's Django version is not specified.r ) r� r r r �warnings�warn�RuntimeWarningrn r r� r� )r8 r �pickled_versionr rJ r6 r6 r9 � __setstate__4 s(
����zModel.__setstate__Nc C s |p| j }t| |jj�S r� )rU rp r� r� )r8 r� r6 r6 r9 � _get_pk_valJ s
zModel._get_pk_valc C sD | j j�� D ]}|r|| j jkrt| |jj|� qt| | j jj|�S r� )rU r� r� r� r� � target_fieldr� )r8 rJ rg r6 r6 r9 � _set_pk_valN s
�zModel._set_pk_valc s � fdd�� j jD �S )zU
Return a set containing names of deferred fields for this instance.
c s h | ] }|j � jvr|j �qS r6 )r� r� ra r7 r6 r9 rc Z s
�z,Model.get_deferred_fields.<locals>.<setcomp>)rU r� r7 r6 r7 r9 �get_deferred_fieldsV s
�zModel.get_deferred_fieldsc s\ |du ri | _ n*t| dd�}|D ]}||v r ||= |�|� q|s#dS tdd� |D ��r2tdt ��d| i}| jjj||d�j | j
d �}| � � � |durVt |�}|j
|� }n� rh� fd
d �| jjD �}|j
|� }|�� }|� � }| jjD ] }|j|v r|qtt| |jt||j�� |jr�|�| �r�|�| � qt| jjD ] }|�| �r�|�| � q�|jj| j_dS ) aU
Reload field values from the database.
By default, the reloading happens from the database this instance was
loaded from, or by the read router if this instance wasn't loaded from
any database. The using parameter will override the default.
Fields can be used to specify which fields to reload. The fields
should be an iterable of field attnames. If fields is None, then
all non-deferred fields are reloaded.
When accessing deferred fields of an instance, the deferred loading
of the field will call this method.
N�_prefetched_objects_cacher6 c s s � | ]}t |v V qd S r� r ra r6 r6 r9 r\ x � � z(Model.refresh_from_db.<locals>.<genexpr>zRFound "%s" in fields argument. Relations and transforms are not allowed in fields.r� )�hints�r� c s g | ]
}|j � vr|j �qS r6 )r� ra ��deferred_fieldsr6 r9 rP � s
�z)Model.refresh_from_db.<locals>.<listcomp>)r rp �remover� r� r r� r� �
db_manager�filterr� r �list�onlyrU r� r� r� r� � is_relation� is_cached�delete_cached_value�related_objectsr� r� ) r8 �usingr| �prefetched_objects_cacher� r �db_instance_qs� db_instance�non_loaded_fieldsr6 r r9 �refresh_from_db_ sN
���
�
�zModel.refresh_from_dbc C s: z| j �|�}W n ty t| |� Y S w t| |j�S )a�
Return the value of the field name for this instance. If the field is
a foreign key, return the id value instead of the object. If there's
no Field object with this name on the model, return the model
attribute's value.
Used to serialize a field's value (in the serializer, or form output,
for example). Normally, you would just access the attribute directly
and not use this method.
)rU r� r rp r� )r8 �
field_namer� r6 r6 r9 �serializable_value� s � zModel.serializable_valueFc
C s$ | j dd� |ptj| j| d�}|r|s|rtd��| �� }|durZ|s&dS t|�}t� }| jj D ]}|j
sH|� |j � |j |j
krH|� |j
� q1|�|�}|rYtdd�|� ��n-|s�|r�|| jjkr�t� }| jj D ]}|j
s{t|d�s{|� |j
� qk|�|�} | r�t| �}| j||||d � dS )
aa
Save the current instance. Override this in a subclass if you want to
control the saving process.
The 'force_insert' and 'force_update' parameters can be used to insist
that the "save" must be an SQL insert or update (or equivalent for
non-SQL backends), respectively. Normally, they should not be set.
�save)�operation_name�r� z6Cannot force both insert and updating in model saving.Nz_The following fields do not exist in this model, are m2m fields, or are non-concrete fields: %sr� �through)r+ � force_insert� force_update�
update_fields)� _prepare_related_fields_for_saver � db_for_writer� r� r � frozensetr� rU r� � primary_keyr� rA r� �
differencer� r� r� rI � save_base)
r8 r7 r8 r+ r9 r! r� r� �non_model_fields�
loaded_fieldsr6 r6 r9 r3 � sH
�
��� �
�z
Model.saveTc C s |p t j| j| d�}|r|s|rJ �|du s|sJ �| j }}|jjr'|jj}|j}|js7tj|| |||d� |j rBt
j |dd�} nt
j |d�} | � d}
|sV| �
|||�}
| �|||p]|
|||�} W d � n1 slw Y || j_d| j_|js�tj|| | |||d� dS dS )av
Handle the parts of saving which should be done only once per save,
yet need to be done in raw saves, too. This includes some sanity
checks and signal sending.
The 'raw' argument is telling save_base not to save any parent
models and not to do any changes to the values before save. This
is used by fixture loading.
r5 N)r� r� �rawr+ r9 F)r+ � savepoint�r+ )r� r� �createdr9 rB r+ )r r; r� rU rv r} rf r, r� r� r �atomic�mark_for_rollback_on_error�
_save_parents� _save_tabler� r� r� r* ) r8 rB r7 r8 r+ r9 r� �originr� �context_manager�parent_inserted�updatedr6 r6 r9 r? � s@
�
� �
��zModel.save_basec
C s� |j }d}|j�� D ]Q\}}|r/t| |j jj�du r/t| |j�dur/t| |j jjt| |j�� | j|||d�}| j||||d�} | sDd}|r[t| |j| � |j �� |�
| �r[|� | � q
|S )z3Save all the parents of cls using values from self.FN)r� r+ r9 )r� r+ r9 r7 T) rU r� ro rp r� r� r� rH rI r r( r) )
r8 r� r+ r9 r� �insertedr� r� rL rM r6 r6 r9 rH s& �
�zModel._save_parentsc s� |j � dd� � jD �}�r�fdd�|D �}��� �}|du r-� j���}t�� jj|� |du} | s;|s7�r;td��d}
�sQ|sQ�jj rQ� jj
rQ� jj
t urQd}| r�|s�|j �
|�} ��fdd�|D �} �ph|}
��| ||| �|
�}
|r{|
s{td ���r�|
s�td
��|
s� jr�� j}|���}|j �
|�jdi |��jtttd �td � t� d
�td��d�d �_� j}| s�� fdd�|D �}� j}��|j |||��}|r�t |d |�D ] \}}t�|j|� q�|
S )zp
Do the heavy-lifting involved in saving. Update or insert the data
for a single table.
c S s g | ]}|j s|�qS r6 �r= ra r6 r6 r9 rP = rk z%Model._save_table.<locals>.<listcomp>c s$ g | ]}|j � v s|j� v r|�qS r6 )rA r� ra )r9 r6 r9 rP @ s �Nz5Cannot force an update in save() with no primary key.FTc s. g | ]}|d � rt �|j�n|��d�f�qS r� )rp r� r, ra )rB r8 r6 r9 rP W s &�z&Forced update did not affect any rows.z0Save with update_fields did not affect any rows.�_order� )� output_fieldr )� _order__maxrS c s g | ] }|� j ur|�qS r6 )�
auto_fieldra )r� r6 r9 rP n rQ r6 ) rU �local_concrete_fieldsr r� �get_pk_value_on_saver� r� r� r� r� �defaultr r� r+ �
_do_updater r� � get_filter_kwargs_for_objectr$ � aggregater# r r r r rP �db_returning_fields�
_do_insertr� )r8 rB r� r7 r8 r+ r9 �non_pks�pk_val�pk_setrM �base_qsr� �
forced_updater� � filter_argsr| �returning_fields�resultsrJ r6 )r� rB r8 r9 r9 rI 6 sp
���� ��
���zModel._save_tablec C sX |j |d�}|s|dup|�� S | jjr%|s%|�� o$|�|�dkp$|�� S |�|�dkS )z�
Try to update the model. Return True if the model was updated (if an
update query was done and a matching row was found in the DB).
r Nr )r$ �existsrU �select_on_save�_update)r8 r` r+ r^ r� r9 ra �filteredr6 r6 r9 rX w s � zModel._do_updatec C s |j | g||||d�S )z�
Do an INSERT. If returning_fields is defined then this method should
return the newly created data for the model.
)r| rc r+ rB )�_insert)r8 r� r+ r| rc rB r6 r6 r9 r\ � s �zModel._do_insertc C s� | j jD ]O}|jrS|�| �rSt| |jd �}|sq|jd u r0|jjs'|j� |� t
d||jf ��t| |j �|j v rAt
| |j |j� t||jj �t| |j �krS|� | � qd S )NzH%s() prohibited to prevent data loss due to unsaved related object '%s'.)rU r� r' r( rp rA r� r� �multipler) r� r� � empty_valuesr� r )r8 r4 r� r� r6 r6 r9 r: � s&
��
��z&Model._prepare_related_fields_for_savec C sZ |p t j| j| d�}| jd us J d| jj| jjjf ��t|d�}|j| g|d� |� � S )Nr5 zC%s object can't be deleted because its %s attribute is set to None.rD )� keep_parents)
r r; r� r� rU r r� r �collect�delete)r8 r+ rl � collectorr6 r6 r9 rn � s ��
z Model.deletec C s2 t | |j�}tt|j��}t|�t|�|�dd�S )NT)� strings_only)rp r� �dictr/ � flatchoicesr. r� )r8 r� rJ � choices_dictr6 r6 r9 �_get_FIELD_display� s zModel._get_FIELD_displayc K s� | j std��|r dnd}|rdnd}t| |j�}td i d|j|f |i��}|td i |j|d| | j i��B }| jj�| j j
�j d i |��� |�� d||jf d | �}z|d
W S t
yk | �d | jjj ��w )
Nz8get_next/get_previous cannot be used on unsaved objects.�gt�lt� �-�%s__%szpk__%sz%s%sz%spkr z!%s matching query does not exist.r6 )r� r� rp r� r' rA r� r� r+ r� r� r$ �order_byr� rW rU r ) r8 r� r� r� �op�order�param�q�qsr6 r6 r9 � _get_next_or_previous_by_FIELD� s "$�
�z$Model._get_next_or_previous_by_FIELDc C s� d| }t | |�sR|r
dnd}|rdnd}| jj}|�| �}| jjjdi |��jdi d| | jj�d�jdi | jjj | ji��i���
|�d d� � � }t | ||� t
| |�S ) Nz__%s_order_cacheru rv rP z-_orderz
_order__%srQ r6 )rI rU r� rY r� r� r$ r� r� rA rz r� r� rp )r8 r� � cachenamer{ r| � order_fieldrb r� r6 r6 r9 r� � s"
�� ��
z$Model._get_next_or_previous_in_orderc C s( | j d u r td| ��t| |j�� j�S )Nz9Unsaved model instance %r cannot be used in an ORM query.)r� r� rp r� �get_related_fieldr� )r8 r� r6 r6 r9 �prepare_database_save� s
zModel.prepare_database_savec C r4 )aI
Hook for doing any extra model-wide validation after clean() has been
called on every field by self.clean_fields. Any ValidationError raised
by this method will not be associated with a particular field; it will
have a special-case association with the field defined by NON_FIELD_ERRORS.
Nr6 r7 r6 r6 r9 �clean� s z Model.cleanc C sX | j |d�\}}| �|�}| �|�}|�� D ]
\}}|�|g ��|� q|r*t|��dS )zh
Check unique constraints on the model and raise ValidationError if any
failed.
��excludeN)�_get_unique_checks�_perform_unique_checks�_perform_date_checksro �
setdefault�extendr )r8 r� �
unique_checks� date_checks�errors� date_errors�k�vr6 r6 r9 �validate_unique� s
�zModel.validate_uniquec s� � du rg � g }| j | jjfg}| j | jjfg}| j�� D ] }|jjr,|�||jjf� |jjr9|�||jjf� q |D ] \}}|D ]}t� fdd�|D ��sX|�|t|�f� qBq<|D ] \}} | D ]}
t� fdd�|
jD ��sx|�||
jf� qbq\g } | j | jj fg} | j�� D ] }| �||jj f� q�| D ]R\}}
|
D ]K}|j
}|� v r�q�|j r�|�||ff� |j r�|j � vr�| �|d||j f� |j
r�|j
� vr�| �|d||j
f� |jr�|j� vr�| �|d||jf� q�q�|| fS )a{
Return a list of checks to perform. Since validate_unique() could be
called from a ModelForm, some fields may have been excluded; we can't
perform a unique check on a model that is missing fields involved
in that check. Fields that did not validate should also be excluded,
but they need to be passed in via the exclude argument.
Nc 3 � � | ]}|� v V qd S r� r6 �rN rA r� r6 r9 r\ & r z+Model._get_unique_checks.<locals>.<genexpr>c 3 r� r� r6 r� r� r6 r9 r\ , r �date�year�month)r� rU �unique_together�total_unique_constraints�get_parent_listr
r� ru r| ry rA �unique�unique_for_date�unique_for_year�unique_for_month)r8 r� r� �unique_togethers� constraints� parent_class� model_classr� �check�model_constraints�
constraintr� �fields_with_classr| rb rA r6 r� r9 r� sZ
�� �� �� �� zModel._get_unique_checksc C s� i }|D ]v\}}i }|D ])}| j �|�}t| |j�}|d u s&|dkr'tjjr'q |jr/| jj s/q ||t
|�< q t |�t |�kr?q|j j
di |��} | �|j �}
| jj s\|
d ur\| j|
d�} | �� rzt |�dkrk|d } nt} |�| g ��| �||�� q|S )Nrw r rQ r r6 )rU r� rp r� r �features�!interprets_empty_strings_as_nullsr= r� r� �strr� r� r$ r r� re r r� r
�unique_error_message) r8 r� r� r� � unique_check�
lookup_kwargsr1 rb � lookup_valuer �model_class_pk�keyr6 r6 r9 r� H s2
�z Model._perform_unique_checksc
C s� i }|D ]i\}}}}i }t | |�}|d u rq|dkr0|j|d| < |j|d| < |j|d| < n t ||�|d||f < t | |�||< |jjdi |��} | jjs[| jd ur[| j | jd�} | �
� rm|� |g �� | �
|||�� q|S )Nr� z%s__dayz %s__monthz%s__yearry r r6 )rp �dayr� r� r� r$ r� r� r� r� re r� r
�date_error_message)
r8 r� r� r� � lookup_typer� �
unique_forr� r� r r6 r6 r9 r� u s*
��zModel._perform_date_checksc
C sL | j }|�|�}t|jd d| t|j�||t|j�|t|�|�j�d�d�S )Nr� )r� r� r� r� � field_label�
date_field�date_field_label��message�code�params)rU r� r �error_messagesr0 � verbose_name)r8 r� r1 r� r� r� r6 r6 r9 r� � s
��zModel.date_error_messagec s� |j � | |t� j�|d�}t|�dkr+� �|d �}t|j�|d< t|jd d|d�S � fdd�|D �}t|td ��|d
< ttd �d |d�S )
N)r� r� r� r� rQ r r� r� r� c s g | ]
}t � �|�j��qS r6 )r0 r� r� ra �r� r6 r9 rP � � z.Model.unique_error_message.<locals>.<listcomp>�and� field_labelsz9%(model_name)s with this %(field_labels)s already exists.r� ) rU r0 r� r� r� r r� r1 �_)r8 r� r� r� r� r� r6 r� r9 r� � s* � ��zModel.unique_error_messagec
C s i }|du r g }nt |�}z| j|d� W n ty, } z |�|�}W Y d}~nd}~ww z| �� W n tyJ } z |�|�}W Y d}~nd}~ww |r|D ]}|tkr^||vr^|�|� qOz| j|d� W n ty~ } z |�|�}W Y d}~nd}~ww |r�t|��dS )z�
Call clean_fields(), clean(), and validate_unique() on the model.
Raise a ValidationError for any errors that occur.
Nr� )r% � clean_fieldsr �update_error_dictr� r r
r� )r8 r� r� r� �erA r6 r6 r9 �
full_clean� s< �� ��
����zModel.full_cleanc C s� |du rg }i }| j jD ]<}|j|v rq t| |j�}|jr#||jv r#q z
t| |j|�|| �� W q t yH } z |j
||j< W Y d}~q d}~ww |rOt |��dS )z
Clean all fields and raise a ValidationError containing a dict
of all validation errors if any occur.
N) rU r| rA rp r� �blankrk r� r� r �
error_list)r8 r� r� rb � raw_valuer� r6 r6 r9 r� � s$
���zModel.clean_fieldsc K s� g | � � �| �� �| jdi |���}| jjsu|�d�p g }|g | jdi |���| �� �| �|��7 }g | � � �| �
� �| � � �| � � �| �
� �R }|�|� |sW|�| �� � |g | �� �| �� �| �|��| �� �| �|��| �� �7 }|S )N� databasesr6 )�_check_swappable� _check_model�_check_managersrU rw r� �
_check_fields�$_check_m2m_through_same_relationship�_check_long_column_names�_check_id_field�_check_field_name_clashes�#_check_model_name_db_lookup_clashes�3_check_property_name_related_field_accessor_clashes�_check_single_primary_keyr� �_check_column_name_clashes�_check_index_together�_check_unique_together�_check_indexes�_check_ordering�_check_constraints�_check_default_pk)r� r� r� r� � clash_errorsr6 r6 r9 r� � sL $��������
������ z Model.checkc C sz | j js;| j jjr;t| j jt�r| j jjjs;t� d�s;| j j
r;| j j
j s;t j
dtj� d�d| j j
jj� d�| dd�gS g S )N�DEFAULT_AUTO_FIELDzPAuto-created primary key used when not defining a primary key type, by default 'z'.z0Configure the DEFAULT_AUTO_FIELD setting or the zh.default_auto_field attribute to point to a subclass of AutoField, e.g. 'django.db.models.BigAutoField'.z models.W042��hintr� �id)rU rT r� rf rM r r� rg r �
is_overriddenr� �!_is_default_auto_field_overriddenr �Warningr� r� r? r� r6 r6 r9 r� s4 �� �
�� �
�
�
���zModel._check_default_pkc
C s� g }| j jrLz
t�| j j� W |S ty( |�tjd| j j dd�� Y |S t yK | j j�
d�\}}|�tjd| j j||f dd�� Y |S w |S )z"Check if the swapped model exists.z-'%s' is not of the form 'app_label.app_name'.z models.E001�r� �.zF'%s' references '%s.%s', which has not been installed, or is abstract.z models.E002) rU rw r � get_modelr� r
r �Error� swappable� LookupError�split)r� r� rV r� r6 r6 r9 r� > s6 �
�� �
���� � zModel._check_swappablec C s: g }| j jr| j js| j jr|�tjd| j dd�� |S )Nz'Proxy model '%s' contains model fields.z models.E017r� )rU rv ry rz r
r r� r= �r� r� r6 r6 r9 r� Y s ��zModel._check_modelc K s, g }| j jD ]
}|�|jdi |��� q|S )zPerform all manager checks.Nr6 )rU r� r� r� )r� r� r� r� r6 r6 r9 r� f s zModel._check_managersc K sT g }| j jD ]
}|�|jdi |��� q| j jD ]}|�|jdd| i|��� q|S )zPerform all field checks.�
from_modelNr6 )rU ry r� r� rz )r� r� r� r� r6 r6 r9 r� n s zModel._check_fieldsc C s� g }g }| j j}dd� |D �}dd� |D �}|D ])}|jj| |jj|jjf}||v r<|�tjd|jjj j | dd�� q|�|� q|S )zL Check if no relationship model is used by more than one m2m field.
c s �" � | ] }t |jjt�r|V qd S r� )rM r� r� rL ra r6 r6 r9 r\ � � � z=Model._check_m2m_through_same_relationship.<locals>.<genexpr>c s r� r� )rM r� r6 rL ra r6 r6 r9 r\ � r� zWThe model has two identical many-to-many relations through the intermediate model '%s'.z models.E003�r� r� )
rU rz r� r� r6 �through_fieldsr
r r� rs )r� r� � seen_intermediary_signaturesr| rb � signaturer6 r6 r9 r� x s&
���
z*Model._check_m2m_through_same_relationshipc sH � fdd�� j jD �}|r"|d js"� j jjdkr"tjd� dd�gS g S )z%Check if `id` field is a primary key.c s& g | ]}|j d kr|� jjkr|�qS r� )rA rU r� ra r� r6 r9 rP � s & z)Model._check_id_field.<locals>.<listcomp>r r� zP'id' can only be used as a field name if the field also sets 'primary_key=True'.z models.E004r� )rU ry r= r� rA r r� )r� r| r6 r� r9 r� � s �� zModel._check_id_fieldc
C sN g }i }| j �� D ]:}|j jD ]3}|�|j�p |�|j�p d}|r8|�tjd|j|j j |j|j j f | dd�� |||j< |||j< qq | j �� D ]}|j �
� D ] }||vr[|||j< qPqI| j jD ]C}|�|j�pp|�|j�ppd}|jdko�|o�|jdko�|j | k}|r�|s�|�tjd|j|j|j j f |dd�� |||j< |||j< qa|S )z2Forbid field shadowing in multi-table inheritance.NzYThe field '%s' from parent model '%s' clashes with the field '%s' from parent model '%s'.z models.E005r� r� z;The field '%s' clashes with the field '%s' from model '%s'.z models.E006) rU r� ry r� rA r� r
r r� r� �
get_fields)r� r� � used_fieldsr� rb �clash� id_conflictr6 r6 r9 r� � sV
����
�
�� "����
z Model._check_field_name_clashesc C s` g }g }| j jD ]%}|�� \}}|r(||v r(|�tjd|j|f d| dd�� q|�|� q|S )Nz>Field '%s' has column name '%s' that is used by another field.z$Specify a 'db_column' for the field.z models.E007r� )rU ry �get_attname_columnr
r r� rA )r� �used_column_namesr� rb r� � column_namer6 r6 r9 r� � s" ���
z Model._check_column_name_clashesc C sb g }| j }|�d�s|�d�r |�tjd| | dd�� |S t|v r/|�tjd| | dd�� |S )Nr� zgThe model name '%s' cannot start or end with an underscore as it collides with the query lookup syntax.z models.E023r� zbThe model name '%s' cannot contain double underscores as it collides with the query lookup syntax.z models.E024)r= �
startswith�endswithr
r r� r )r� r� r� r6 r6 r9 r� � s0 �������z)Model._check_model_name_db_lookup_clashesc C sT g }| j j}dd� | j jdd�D �}|D ]}||v r'|�tjd| | dd�� q|S )Nc s s( � | ]}|j r|jd ur|�� V qd S r� )r' �
related_model� get_attnamera r6 r6 r9 r\ s � �
��zLModel._check_property_name_related_field_accessor_clashes.<locals>.<genexpr>F��reversez8The property '%s' clashes with a related field accessor.z models.E025r� )rU r� � _get_fieldsr
r r� )r� r� r� �related_field_accessors�accessorr6 r6 r9 r� s$ �����z9Model._check_property_name_related_field_accessor_clashesc C s8 g }t dd� | jjD ��dkr|�tjd| dd�� |S )Nc s s � | ]}|j rd V qdS )rQ NrO ra r6 r6 r9 r\ * r� z2Model._check_single_primary_key.<locals>.<genexpr>rQ zBThe model cannot have more than one field with 'primary_key=True'.z models.E026r� )�sumrU ry r
r r� r� r6 r6 r9 r� ' s ��z Model._check_single_primary_keyc C �t t | jjttf�stjd| dd�gS tdd� | jjD ��r&tjd| dd�gS g }| jjD ] }|�| � |d�� q,|S ) z+Check the value of "index_together" option.z)'index_together' must be a list or tuple.z models.E008r� c s � � | ] }t |ttf� V qd S r� �rM ru r% �rN r| r6 r6 r9 r\ A � � z.Model._check_index_together.<locals>.<genexpr>z6All 'index_together' elements must be lists or tuples.z models.E009�index_together)
rM rU r
ru r% r r� r� r� �_check_local_fields�r� r� r| r6 r6 r9 r� 5 �$ ���� zModel._check_index_togetherc C r ) z,Check the value of "unique_together" option.z*'unique_together' must be a list or tuple.z models.E010r� c s r r� r r r6 r6 r9 r\ \ r z/Model._check_unique_together.<locals>.<genexpr>z7All 'unique_together' elements must be lists or tuples.z models.E011r� )
rM rU r� ru r% r r� r� r� r r r6 r6 r9 r� P r
z Model._check_unique_togetherc C s� g }t � }| jjD ]M}|jd dks|jd �� r'|�tjd|j | dd�� t|j�|j kr@|�tjd|j|j f | dd�� |j
rV|j D ]}|� dd � | �
|�D �� qFq |D ]y}t�|| �sbqYt| }|jjs�d
| jjv s�td d � | jjD ��r�|�tjd |j d
| dd�� |jjs�d| jjv s�tdd � | jjD ��r�|�tjd|j d| dd�� |jjs�d| jjv s�tdd � | jjD ��r�|�tjd|j d| dd�� qYdd� | jjD �}|d d� | jjD �7 }||7 }|�| �|d �� |S ) z/Check fields, names, and conditions of indexes.r r� z@The index name '%s' cannot start with an underscore or a number.z models.E033r� z8The index name '%s' cannot be longer than %d characters.z models.E034c s s � | ]}|d V qdS )r Nr6 )rN �refr6 r6 r9 r\ � s �
�z'Model._check_indexes.<locals>.<genexpr>�supports_partial_indexesc s s � | ]}|j d uV qd S r� )� condition�rN r� r6 r6 r9 r\ � r� z,%s does not support indexes with conditions.zLConditions will be ignored. Silence this warning if you don't care about it.z models.W037r� �supports_covering_indexesc s r� r� ��includer r6 r6 r9 r\ � r� z1%s does not support indexes with non-key columns.zQNon-key columns will be ignored. Silence this warning if you don't care about it.z models.W040�supports_expression_indexesc s r� r� )�contains_expressionsr r6 r6 r9 r\ � r� z+%s does not support indexes on expressions.zKAn index won't be created. Silence this warning if you don't care about it.z models.W043c S s g | ] }|j D ]\}}|�qqS r6 )�
fields_orders)rN r� r� r� r6 r6 r9 rP � s z(Model._check_indexes.<locals>.<listcomp>c S s g | ]
}|j D ]}|�qqS r6 r )rN r� r r6 r6 r9 rP � r� r� )r� rU r� rA �isdigitr
r r� r� �max_name_lengthr � expressionsr� �_get_expr_referencesr �allow_migrate_modelr r� r �required_db_featuresr� r� � display_namer r r� r ) r� r� r� �
referencesr� �
expressionr� r r| r6 r6 r9 r� k s� ���
���
�� � ����
� ����
� ����� zModel._check_indexesc C s� ddl m} i }| jjdd�D ]}|||j< t|d�r |||j< qg }|D ]R}z|| }W n tyE |�t j
d||f | dd�� Y q%w t |j |j
�r^|�t j
d |||f | d
d�� q%|| jjvrw|�t j
d ||| jjf d | d
d�� q%|S )Nr )�modelsFr� r� z*'%s' refers to the nonexistent field '%s'.z models.E012r� zV'%s' refers to a ManyToManyField '%s', but ManyToManyFields are not permitted in '%s'.z models.E013z;'%s' refers to field '%s' which is not local to model '%s'.z4This issue may be caused by multi-table inheritance.z models.E016r� )� django.dbr! rU r rA rI r� r� r
r r� rM r� �
ManyToManyRelry r )r� r| �optionr! �forward_fields_mapr� r� r1 r6 r6 r9 r � s\
� ���� ����
���� zModel._check_local_fieldsc C s� | j jr
tjd| dd�gS | j js| j jsg S t| j jttf�s)tjd| dd�gS g }| j j}dd� |D �}dd� |D �}g }g }|D ]}t |v rO|�
|� qC|�
|� qC|}|D ]W}| }d }|� t �D ]K} z | d
krp|j j }n|j �
| �}|jr�|�� d jj}nd }W qd ttfy� |d u s�|�| �d u r�|�| �d u r�|�
tjd | | d
d�� Y qdw qYdd� |D �}g }
| j } tt�dd� t| j| j�D ���} |
�|| � |
D ]}
|�
tjd |
| d
d�� q�|S )ze
Check "ordering" option -- is it a list of strings and do all fields
exist?
z?'ordering' and 'order_with_respect_to' cannot be used together.z models.E021r� zQ'ordering' must be a tuple or list (even if you want to order by only one field).z models.E014c s s& � | ]}t |t�r|d kr|V qdS )�?N)rM r� ra r6 r6 r9 r\ s �$ z(Model._check_ordering.<locals>.<genexpr>c s s* � | ]}|� d �r|dd� n|V qdS )rx rQ N)r� ra r6 r6 r9 r\ s �( Nr� ���zJ'ordering' refers to the nonexistent field, related field, or lookup '%s'.z models.E015c S s h | ]}|d kr|�qS r r6 ra r6 r6 r9 rc B s z(Model._check_ordering.<locals>.<setcomp>c s s4 � | ]}|j r
|jr|j|jfn|j�� fV qd S r� )rf �concreterA r� r� �related_query_namera r6 r6 r9 r\ J s
� "�
�) rU �_ordering_clashr r� r� r^ rM r% ru r r
r� r� r� r' �
get_path_info�to_optsr� r r� �
get_transform�
get_lookupr� r �
from_iterabler| r* r� )r� r� r| �_fields�related_fieldsrb r� �_cls�fld�part�invalid_fieldsr� � valid_fields�
invalid_fieldr6 r6 r9 r� � s� ����
� ������
����zModel._check_orderingc
C sX |sg S g }d}d}|D ],}t �|| �sq t| }|j�� }|du s&|jjr'q |du r0|}|}q ||k r8|}|}q |du r?|S | jjD ](}|� � \} }
|j
du rk|
durkt |
�|krk|� t
jd|
||f d| dd�� qC| jjD ]9}t|jjt�rzqp|jjjjD ](} | � � \} } | j
du r�| dur�t | �|kr�|� t
jd| ||f d| dd�� q�qp|S ) z�
Check that any auto-generated column names are shorter than the limits
for each database in which the model will be created.
Nz\Autogenerated column name too long for field "%s". Maximum length is "%s" for database "%s".z/Set the column name manually using 'db_column'.z models.E018r� z`Autogenerated column name too long for M2M field "%s". Maximum length is "%s" for database "%s".z\Use 'through' to create a separate model for M2M and then set column_name using 'db_column'.z models.E019)r r r �opsr r� �truncates_namesrU ry r� � db_columnr� r
r r� rz rM r� r6 r� )
r� r� r� � allowed_len�db_aliasr� r r rb r� r� �m2m�rel_namer6 r6 r9 r� \ sl
� ���� �����z Model._check_long_column_namesc c s� � t |t�r0|jD ]$}t |t�r%|\}}t|�t��V | �|�E d H q | �|�E d H q d S t |t�r@t|j�t��V d S t |d�rT|�
� D ] }| �|�E d H qId S d S )N�get_source_expressions) rM r' �childrenru r� r r r& rA rI r? )r� �expr�child�lookuprJ �src_exprr6 r6 r9 r � s �
�
�zModel._get_expr_referencesc
C s� g }|D �]n}t �|| �sqt| }|jjs6d| jjv s6tdd� | jjD ��r6|� t
j d|j d| dd�� |jj
sZd| jjv sZtd d� | jjD ��rZ|� t
j d
|j d| d d�� |jjs~d | jjv s~td
d� | jjD ��r~|� t
j d|j d| dd�� |jjs�d| jjv s�tdd� | jjD ��r�|� t
j d|j d| dd�� tt�dd� | jjD ���}t� }| jjD ]?}t|t�r�|jj
s�d| jjvr�t|jt�r�|�| �|j�� q�t|t�r�|jjs�d| jjvr�t|jt�r�|�| �|j�� q�|D ]p^}} |dk�r|�|� | �s q�z |dk�r| jj }
n| j� |�}
|
j �r(|
j �s(|
j �r*W q�W n
t!�y5 Y q�w | d } t"|
d��rit"|
d��ri|
�#| �d u �ri|
�$| �d u �ri|� t
j%dt&�'|g| � | dd�� q�|�(| �)|d �� q|S ) N� supports_table_check_constraintsc s s � | ]}t |t�V qd S r� )rM r �rN r� r6 r6 r9 r\ � s
� �
�z+Model._check_constraints.<locals>.<genexpr>z&%s does not support check constraints.zOA constraint won't be created. Silence this warning if you don't care about it.z models.W027r� r c s �$ � | ]
}t |t�o
|jd uV qd S r� )rM r r rF r6 r6 r9 r\ � �
� �
�z7%s does not support unique constraints with conditions.z models.W036�&supports_deferrable_unique_constraintsc s rG r� )rM r �
deferrablerF r6 r6 r9 r\ � rH z2%s does not support deferrable unique constraints.z models.W038r c s s � | ] }t |t�o |jV qd S r� )rM r r rF r6 r6 r9 r\ � s
� �
�z<%s does not support unique constraints with non-key columns.z models.W039c s s, � | ]}t |t�rg |j�|j�R V qd S r� )rM r r| r rF r6 r6 r9 r\ s �
�
�r� r r- r. z.'constraints' refers to the joined field '%s'.z models.E041r� r� )*r r r r� rE rU r r� r� r
r r� r r rI r r� r r/ rM r r r' r� r r r� r� r� r� r' � many_to_many� one_to_manyr rI r- r. r� r r� r� r ) r� r� r� r� r r| r r� r1 �lookupsr� � first_lookupr6 r6 r9 r� � s�
� ���� � �����
� �����
� �����
�
�
��
�
��
��������zModel._check_constraintsr� )NN)FFNN)FFFNN)FNFFNNr� )NT)@r= r> r? r� � classmethodr� r: r< r r r
r r r r r� r� r r0 r2 r3 � alters_datar? rH rI rX r\ r: rn rt r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r r� r� r r� rR r6 r6 r� r9 r� � s� e
=
�8
�1
�A
"
:-
$
8
X
1
e
J
r� )� metaclassc sV |d u rt }� jj}|�| �}� j�|�jdi |���� fdd�t|�D �dg� d S )Nc s g | ]
\}}� ||d ��qS ))r� rP r6 )rN r| r� �� ordered_objr6 r9 rP J s �z$method_set_order.<locals>.<listcomp>rP r6 ) r
rU r� �get_forward_related_filterr� r# r$ � bulk_update� enumerate)r8 rS �id_listr+ � order_wrtrb r6 rR r9 �method_set_orderE s
"��rY c C s8 |j j}|�| �}|j jj}|jjdi |��j|dd�S )NT)�flatr6 )rU r� rT r� rA r� r$ � values_list)r8 rS rX rb �pk_namer6 r6 r9 �method_get_orderO s
r] c C s< t |d| j�� tt| �� t |d| j�� tt| �� d S )Nz get_%s_orderz set_%s_order)r� r= �lowerr r] rY )r� r� r6 r6 r9 r� V s � �r� c C s$ t | t�r tj| � }n| }|�|�S )z7Used to unpickle Model subclasses with deferred fields.)rM ru r r� rm )�model_idr� r6 r6 r9 r g s
r Tr� )Yrh rG r � functoolsr � itertoolsr r � django.appsr � django.confr � django.corer �django.core.exceptionsr r r r
r r r" r
r r r r r r �django.db.modelsr r r r r �django.db.models.constantsr � django.db.models.constraintsr r �django.db.models.deletionr r � django.db.models.fields.relatedr r r! r" �django.db.models.functionsr# �django.db.models.managerr$ �django.db.models.optionsr% �django.db.models.queryr& r' �django.db.models.signalsr( r) r* r+ r, �django.db.models.utilsr- �django.utils.encodingr. �django.utils.hashabler/ �django.utils.textr0 r1 �django.utils.translationr2 r� r3 r� rE rK r@ rL r� r� r� rY r] r� r �__safe_for_unpickle__r6 r6 r6 r9 �<module> sl $ ;
>