|
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/migrations/operations/__pycache__/ |
Upload File : |
o
3�a\< � @ s� d dl mZ d dlmZ d dlmZ ddlmZ ddlm Z m
Z
m Z G dd� de�Z G d d
� d
e �Z
G d d � d e �ZG d
d� de �ZG dd� de �ZdS )� )�FieldDoesNotExist)� NOT_PROVIDED)�cached_property� )� Operation)�field_is_referenced�field_references�get_referencesc s^ e Zd Zddd�Zedd� �Zedd� �Zdd � Zd
d � Zd d
� Z dd� Z
� fdd�Z � Z S )�FieldOperationNc C s || _ || _|| _d S �N��
model_name�name�field)�selfr
r r � r �H/usr/lib/python3/dist-packages/django/db/migrations/operations/fields.py�__init__
s
zFieldOperation.__init__c C �
| j �� S r )r
�lower�r r r r �model_name_lower �
z FieldOperation.model_name_lowerc C r r )r r r r r r �
name_lower r zFieldOperation.name_lowerc C s | j |j kS r )r �r � operationr r r �is_same_model_operation s z&FieldOperation.is_same_model_operationc C s | � |�o
| j|jkS r )r r r r r r �is_same_field_operation s z&FieldOperation.is_same_field_operationc C s< |� � }|| jkr dS | jr tt|| jf| j||f��S dS )NTF)r r r �boolr )r r � app_labelr r r r �references_model s
�z FieldOperation.references_modelc C sn |� � }|| jkr!|| jkrdS | jr!t| jd�r!|| jjv r!dS | jd u r(dS tt|| jf| j||f|��S )NT� from_fieldsF)r r r r �hasattrr! r r )r r
r r r r r r �references_field' s
�z FieldOperation.references_fieldc s" t � �||�p|�| j| j|� S r )�super�reducer# r
r �r r r �� __class__r r r% 9 s �zFieldOperation.reducer )
�__name__�
__module__� __qualname__r r r r r r r r# r% �
__classcell__r r r' r r
s
r
c �b e Zd ZdZd� fdd� Zdd� Zdd� Zd d
� Zd d � Zd
d� Z e
dd� �Z � fdd�Z � Z
S )�AddFieldzAdd a field to a model.Tc � || _ t� �|||� d S r ��preserve_defaultr$ r �r r
r r r1 r' r r r C � zAddField.__init__c C �4 | j | j| jd�}| jdur| j|d< | jjg |fS �Nr Tr1 �r
r r r1 r( r) �r �kwargsr r r � deconstructG � �
�zAddField.deconstructc C sT | j s | j�� }t|_n| j}||j|| jf j| j< |j }|j
|| j|d� d S �N��delay) r1 r �cloner �default�modelsr �fieldsr � is_relation� reload_model)r r �stater r= r r r �state_forwardsU s
zAddField.state_forwardsc C sr |j �|| j�}| �|jj|�r5|j �|| j�}|j�| j�}| j s'| j
j |_ |� ||� | j s7t
|_ d S d S d S r )�apps� get_modelr
�allow_migrate_model�
connection�alias�_meta� get_fieldr r1 r r? � add_fieldr )r r �
schema_editor�
from_state�to_state�to_model�
from_modelr r r r �database_forwardsa s
�
� zAddField.database_forwardsc C �> |j �|| j�}| �|jj|�r |�||j�| j �� d S d S r �
rF rG r
rH rI rJ � remove_fieldrK rL r �r r rN rO rP rR r r r �database_backwardso � �zAddField.database_backwardsc C � d| j | jf S )NzAdd field %s to %s�r r
r r r r �describet � zAddField.describec C rZ )Nz%s_%s�r r r r r r �migration_name_fragmentw � z AddField.migration_name_fragmentc sp t |t�r1| �|�r1t |t�rt| j|j|jd�gS t |t�r!g S t |t �r1t| j|j
| jd�gS t � � ||�S �Nr )
�
isinstancer
r �
AlterFieldr. r
r r � RemoveField� RenameField�new_namer$ r% r& r' r r r% { s$
��
��zAddField.reduce�T�r) r* r+ �__doc__r r9 rE rS rX r\ �propertyr_ r% r, r r r' r r. @ s
r. c sT e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
d � Ze d d
� �Z
� fdd�Z � Z S )rd z Remove a field from a model.c C s | j | jd�}| jjg |fS )N)r
r )r
r r( r) r7 r r r r9 � s ��zRemoveField.deconstructc C s< |j || jf }|j�| j�}|j }|j|| j|d� d S r; )r@ r rA �popr rB rC )r r rD � model_state� old_fieldr= r r r rE � s zRemoveField.state_forwardsc C rT r rU rW r r r rS � rY z RemoveField.database_forwardsc C sN |j �|| j�}| �|jj|�r%|j �|| j�}|�||j�| j �� d S d S r )
rF rG r
rH rI rJ rM rK rL r �r r rN rO rP rQ rR r r r rX � s
�z RemoveField.database_backwardsc C rZ )NzRemove field %s from %sr[ r r r r r\ � r] zRemoveField.describec C rZ )Nz remove_%s_%sr^ r r r r r_ � r` z#RemoveField.migration_name_fragmentc s6 ddl m} t||�r|j| jkr|gS t� �||�S )Nr )� DeleteModel)r@ ro rb r r r$ r% )r r r ro r' r r r% � s zRemoveField.reduce)
r) r* r+ ri r9 rE rS rX r\ rj r_ r% r, r r r' r rd � s
rd c r- )rc z`
Alter a field's database column (e.g. null, max_length) to the provided
new field.
Tc r/ r r0 r2 r' r r r � r3 zAlterField.__init__c C r4 r5 r6 r7 r r r r9 � r: zAlterField.deconstructc C sr | j s | j�� }t|_n| j}|j|| jf }||j| j< |j o-t
||| jf| j|f� }|j || j|d� d S r; ) r1 r r> r r? r@ r rA r rB r rC )r r rD r rl r= r r r rE � s
��zAlterField.state_forwardsc C s� |j �|| j�}| �|jj|�r=|j �|| j�}|j�| j�}|j�| j�}| j s.| j
j |_ |� |||� | j s?t
|_ d S d S d S r )rF rG r
rH rI rJ rK rL r r1 r r? � alter_fieldr ) r r rN rO rP rQ rR �
from_field�to_fieldr r r rS � s
�z AlterField.database_forwardsc C s | � ||||� d S r )rS )r r rN rO rP r r r rX � � z AlterField.database_backwardsc C rZ )NzAlter field %s on %sr[ r r r r r\ � r] zAlterField.describec C rZ )Nz alter_%s_%sr^ r r r r r_ � r` z"AlterField.migration_name_fragmentc sT t |t�r
| �|�r
|gS t |t�r#| �|�r#|t| j|j| jd�gS t� � ||�S ra )
rb rd r re rc r
rf r r$ r% r& r' r r r% s ��zAlterField.reducerg rh r r r' r rc � s
rc c s� e Zd ZdZ� fdd�Zedd� �Zedd� �Zdd � Zd
d � Z d d
� Z
dd� Z dd� Z e
dd� �Zdd� Z� fdd�Z� ZS )re z8Rename a field on the model. Might affect db_column too.c s || _ || _t� �||� d S r )�old_namerf r$ r )r r
rt rf r' r r r s zRenameField.__init__c C r r )rt r r r r r �old_name_lower r zRenameField.old_name_lowerc C r r )rf r r r r r �new_name_lower r zRenameField.new_name_lowerc C s | j | j| jd�}| jjg |fS )N)r
rt rf )r
rt rf r( r) r7 r r r r9 ! s ��zRenameField.deconstructc sL |j |� jf }|j}z|�� j�}W n ty% td|� j� jf ��w ||� j< |� � D ]}t
|dd �}|rEt � fdd�|D ��|_ q/|j
}dD ]} | |v r^� fdd�|| D �|| < qKd}
t||� jf� j|f�} | D ]+�^ } }}
d}
|
jr�|
j\}}t
|d d �� jkr�� j|_|r�t � fd
d�|D ��|_qo|j|� j|
d � d S ) Nz %s.%s has no field named '%s'r! c � g | ] }|� j kr � jn|�qS r �rt rf )�.0�from_field_namer r r �
<listcomp>< � ��z.RenameField.state_forwards.<locals>.<listcomp>)�index_together�unique_togetherc s g | ] }� fd d�|D ��qS )c rw r rx )ry �nr r r r{ E s z9RenameField.state_forwards.<locals>.<listcomp>.<listcomp>r )ry �togetherr r r r{ D s ��TF�
field_namec rw r rx )ry �
to_field_namer r r r{ T r| r< )r@ r rA rk rt �KeyErrorr r
rf �values�getattr�tupler! �optionsr �tor� � to_fieldsrC )r r rD rl rA �foundr r! r� �optionr= �
references�_� reference� remote_fieldr� r r r rE - sP ��
��
���
��zRenameField.state_forwardsc C �Z |j �|| j�}| �|jj|�r+|j �|| j�}|�||j�| j �|j�| j
�� d S d S r ) rF rG r
rH rI rJ rp rK rL rt rf rn r r r rS Z � ��z RenameField.database_forwardsc C r� r ) rF rG r
rH rI rJ rp rK rL rf rt rn r r r rX d r� z RenameField.database_backwardsc C � d| j | j| jf S )NzRename field %s on %s to %s)rt r
rf r r r r r\ n rs zRenameField.describec C r� )Nzrename_%s_%s_%s)ru r rv r r r r r_ q s
�z#RenameField.migration_name_fragmentc C s( | � ||�o|�� | jkp|�� | jkS r )r r ru rv )r r
r r r r r r# y s �z RenameField.references_fieldc sZ t |t�r| �|�r| j|jkrt| j| j|j�gS tt | ��
||�p,|� | j| j|� S r ) rb re r rv ru r
rt rf r$ r
r% r# r& r' r r r% s
� ��
�zRenameField.reduce)r) r* r+ ri r r ru rv r9 rE rS rX r\ rj r_ r# r% r, r r r' r re s
-
re N)�django.core.exceptionsr �django.db.modelsr �django.utils.functionalr �baser �utilsr r r r
r. rd rc re r r r r �<module> s 7R.Q