o
    Ti                     @   s  d dl mZ d dlmZ d dlmZ d dlmZmZ d dl	m
Z
 d dlmZ ddlmZmZmZmZmZ d	d
 ZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd deZG dd  d eZG d!d" d"eZG d#d$ d$eZ G d%d& d&eZ!G d'd( d(e!Z"G d)d* d*e!Z#G d+d, d,e!Z$G d-d. d.e!Z%G d/d0 d0e!Z&d1S )2    )models)	Operation)
ModelState)field_referencesresolve_relation)normalize_together)cached_property   )AddField
AlterFieldFieldOperationRemoveFieldRenameFieldc                 C   s6   t  }|D ]}||v rtd|| f || qd S )Nz4Found duplicate value %s in CreateModel %s argument.)set
ValueErroradd)Zarg_nameZobjsZ	used_valsval r   f/var/www/html/evchargy.com/venv/lib/python3.10/site-packages/django/db/migrations/operations/models.py_check_for_duplicates   s   
r   c                       s@   e Zd Zdd Zedd Zdd Z fddZd	d
 Z  Z	S )ModelOperationc                 C   s
   || _ d S Nname)selfr   r   r   r   __init__      
zModelOperation.__init__c                 C   
   | j  S r   )r   lowerr   r   r   r   
name_lower      
zModelOperation.name_lowerc                 C   s   |  | jkS r   r   r    r   r   	app_labelr   r   r   references_model      zModelOperation.references_modelc                    s   t  ||p| ||S r   )superreducecan_reduce_throughr   	operationr$   	__class__r   r   r(       s   zModelOperation.reducec                 C   s   | | j| S r   )r%   r   r*   r   r   r   r)   %      z!ModelOperation.can_reduce_through)
__name__
__module____qualname__r   r   r    r%   r(   r)   __classcell__r   r   r,   r   r      s    
r   c                       sr   e Zd ZdZg dZd fdd	Zdd Zdd	 Zd
d Zdd Z	dd Z
edd Zdd Z fddZ  ZS )CreateModelzCreate a model's table.)fieldsoptionsmanagersNc                    sz   || _ |pi | _|ptjf| _|pg | _t | tddd | j D  tddd | jD  tddd | jD  d S )Nr4   c                 s       | ]\}}|V  qd S r   r   .0r   _r   r   r   	<genexpr>6       z'CreateModel.__init__.<locals>.<genexpr>basesc                 s   s8    | ]}t |d r|jjn
t|tr| n|V  qdS )_metaN)hasattrr>   Zlabel_lower
isinstancestrr   )r9   baser   r   r   r;   9   s    


r6   c                 s   r7   r   r   r8   r   r   r   r;   B   r<   )	r4   r5   r   Modelr=   r6   r'   r   r   )r   r   r4   r5   r=   r6   r,   r   r   r   .   s   

zCreateModel.__init__c                 C   sn   | j | jd}| jr| j|d< | jr| jtjfkr| j|d< | jr0| jdt fgkr0| j|d< | jj	g |fS )N)r   r4   r5   r=   objectsr6   )
r   r4   r5   r=   r   rC   r6   Managerr-   r1   r   kwargsr   r   r   deconstructD   s   


zCreateModel.deconstructc              
   C   s6   | t|| jt| jt| jt| jt| j	 d S r   )
Z	add_modelr   r   listr4   dictr5   tupler=   r6   r   r$   stater   r   r   state_forwardsQ   s   zCreateModel.state_forwardsc                 C   2   |j || j}| |jj|r|| d S d S r   apps	get_modelr   allow_migrate_model
connectionaliasZcreate_modelr   r$   schema_editor
from_stateto_statemodelr   r   r   database_forwards]      zCreateModel.database_forwardsc                 C   2   |j || j}| |jj|r|| d S d S r   rQ   rR   r   rS   rT   rU   Zdelete_modelrV   r   r   r   database_backwardsb   r\   zCreateModel.database_backwardsc                 C   s    d| j ddr
dnd| jf S )NzCreate %smodel %sproxyFzproxy  )r5   getr   r   r   r   r   describeg   s   zCreateModel.describec                 C   s   | j S r   r    r   r   r   r   migration_name_fragmentm   s   z#CreateModel.migration_name_fragmentc                 C   s   |  }|| jkrdS ||f}| jD ]}|tjur,t|tjjtfr,t	|||kr, dS q| j
D ]\}}t|| jf||r@ dS q0dS )NTF)r   r    r=   r   rC   r@   rB   Z	ModelBaserA   r   r4   r   )r   r   r$   r    Zreference_model_tuplerB   _namefieldr   r   r   r%   q   s$   


zCreateModel.references_modelc           
   
      s  t  tr| j jkr| jddsg S t  tr.| j jkr.t j| j	| j| j
| jdgS t  tr`| j jkr`i | j j} jD ]}| jvrQ||d  qDt| j| j	|| j
| jdgS t  trz| j jkrzt| j| j	| j| j
 jdgS t  tr| j jkrt| j| j	i | j j ji| j
| jdgS t  tr| j jkrt| j| j	i | jd ji| j
| jdgS t  tr| j jkrt  trt| j| j	 j jfg | j| j
| jdgS t  trt| j fdd| j	D | j| j
| jdgS t  trS| j }dD ]!}||d }|r.ttt fdd	|D }|r.|||< q|d}| jkr>|d= t| j fd
d| j	D || j
| jdgS t  t r| j }dD ]}||}|ru fdd|D ||< q`|d}| j!kr j|d< t| j fdd| j	D || j
| jdgS nt  t"rE| j jkrEt  t#rt| j| j	i | jdg | jdg  j$i| j
| jdgS t  t%r fdd| jdg D }t| j| j	i | jd|i| j
| jdgS t  t&rE j'rE fdd| jdg D }	|	r|	| jd< n| jdd  t| j| j	i | jdg | jdg t(j) j' jdi| j
| jdgS t* + |S )Nr`   F)r4   r5   r=   r6   order_with_respect_toc                    s(   g | ]\}}|| j kr jn|fqS r   )r   rg   r9   nvr+   r   r   
<listcomp>       z&CreateModel.reduce.<locals>.<listcomp>)unique_togetherindex_togetherc                 3   s&    | ]}t  fd d|D V  qdS )c                 3   s    | ]
}| j kr|V  qd S r   rd   r9   frl   r   r   r;      s    z/CreateModel.reduce.<locals>.<genexpr>.<genexpr>NrK   r9   r4   rl   r   r   r;      s    
z%CreateModel.reduce.<locals>.<genexpr>c                    s&   g | ]\}}|   jkr||fqS r   r"   ri   rl   r   r   rm     s
    c                    s"   h | ]}t  fd d|D qS )c                 3   s$    | ]}| j kr jn|V  qd S r   old_namenew_namerq   rl   r   r   r;     s
    
z/CreateModel.reduce.<locals>.<setcomp>.<genexpr>rs   rt   rl   r   r   	<setcomp>  s    z%CreateModel.reduce.<locals>.<setcomp>c                    s(   g | ]\}}| j kr jn||fqS r   ru   ri   rl   r   r   rm   )  rn   indexesc                    s   g | ]
}|j  j kr|qS r   r   )r9   indexrl   r   r   rm   G  s
    c                    s   h | ]	}| j kr|qS r   )
old_fieldsrt   rl   r   r   rx   Y  s
    
rp   r4   r   ),r@   DeleteModelr    r5   rb   RenameModelold_name_lowerr3   rw   r4   r=   r6   AlterModelOptionsALTER_OPTION_KEYSpopr   AlterModelManagersAlterTogetherOptionOperationoption_nameoption_valueAlterOrderWithRespectTorh   r   model_name_lowerr
   rg   r   r   copyr   filterboolr   rv   IndexOperationAddIndexrz   RemoveIndexRenameIndexr{   r   Indexr'   r(   )
r   r+   r$   r5   keyr   optionrh   Zoptions_indexesZoptions_index_togetherr,   rl   r   r(      s  






	













	zCreateModel.reduce)NNN)r/   r0   r1   __doc__serialization_expand_argsr   rH   rN   r[   r_   rc   propertyre   r%   r(   r2   r   r   r,   r   r3   )   s    
r3   c                   @   L   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d Zdd Z	e
dd ZdS )r}   zDrop a model's table.c                 C   s   d| j i}| jjg |fS Nr   )r   r-   r1   rF   r   r   r   rH   y  s   zDeleteModel.deconstructc                 C   s   | || j d S r   )Zremove_modelr    rL   r   r   r   rN        zDeleteModel.state_forwardsc                 C   r]   r   r^   rV   r   r   r   r[     r\   zDeleteModel.database_forwardsc                 C   rO   r   rP   rV   r   r   r   r_     r\   zDeleteModel.database_backwardsc                 C   s   dS )NTr   r#   r   r   r   r%     s   zDeleteModel.references_modelc                 C   
   d| j  S )NzDelete model %sr   r   r   r   r   rc     r   zDeleteModel.describec                 C   r   )Nz	delete_%srd   r   r   r   r   re     r!   z#DeleteModel.migration_name_fragmentN)r/   r0   r1   r   rH   rN   r[   r_   r%   rc   r   re   r   r   r   r   r}   v  s    r}   c                       s   e Zd ZdZ fddZedd Zedd Zdd	 Zd
d Z	dd Z
dd Zdd Zdd Zedd Z fddZ  ZS )r~   zRename a model.c                    s   || _ || _t | d S r   )rv   rw   r'   r   )r   rv   rw   r,   r   r   r     s   zRenameModel.__init__c                 C   r   r   rv   r   r   r   r   r   r     r!   zRenameModel.old_name_lowerc                 C   r   r   rw   r   r   r   r   r   new_name_lower  r!   zRenameModel.new_name_lowerc                 C      | j | jd}| jjg |fS )Nru   )rv   rw   r-   r1   rF   r   r   r   rH        zRenameModel.deconstructc                 C      | || j| j d S r   )Zrename_modelrv   rw   rL   r   r   r   rN        zRenameModel.state_forwardsc                 C   s  |j || j}| |jj|r~|j || j}|||jj	|jj	 |jj
D ]0}|j|kr6|}|| jf}	n|j}|jjj|jjjf}	|j j|	 j|jj}
|||j|
 q't|jj|jj}|D ]\}}|j|jkss|jjjjstqc|j|||dd qcd S d S )NF)strict)rQ   rR   rw   rS   rT   rU   rv   alter_db_tabler>   db_tableZrelated_objectsZrelated_modelr   r$   
model_name	get_fieldrg   r   Zalter_fieldziplocal_many_to_manyrZ   remote_fieldthroughauto_createdZ_alter_many_to_many)r   r$   rW   rX   rY   	new_model	old_modelZrelated_objectrZ   Zrelated_keyZto_fieldr4   	old_field	new_fieldr   r   r   r[     sP   

zRenameModel.database_forwardsc                 C   s\   | j | j| _| _ | j| j| _| _| |||| | j | j| _| _ | j| j| _| _d S r   )r   r   rv   rw   r[   r   r$   rW   rX   rY   r   r   r   r_     s   

zRenameModel.database_backwardsc                 C   s   |  | jkp|  | jkS r   )r   r   r   r#   r   r   r   r%     s   zRenameModel.references_modelc                 C      d| j | jf S )NzRename model %s to %sru   r   r   r   r   rc     r.   zRenameModel.describec                 C   r   )Nrename_%s_%s)r   r   r   r   r   r   re        z#RenameModel.migration_name_fragmentc                    sH   t |tr| j|jkrt| j|jgS tt| ||p#|	| j| S r   )
r@   r~   r   r   rv   rw   r'   r   r(   r%   r*   r,   r   r   r(     s   
zRenameModel.reduce)r/   r0   r1   r   r   r   r   r   rH   rN   r[   r_   r%   rc   r   re   r(   r2   r   r   r,   r   r~     s     

0
r~   c                       s   e Zd Z fddZ  ZS )ModelOptionOperationc                    s0   t || jtfr| j|jkr|gS t ||S r   )r@   r-   r}   r    r'   r(   r*   r,   r   r   r(     s
   zModelOptionOperation.reduce)r/   r0   r1   r(   r2   r   r   r,   r   r     s    r   c                       sT   e Zd ZdZ fddZdd Zdd Zdd	 Zd
d Zdd Z	e
dd Z  ZS )AlterModelTablezRename a model's table.c                       || _ t | d S r   )tabler'   r   )r   r   r   r,   r   r   r        zAlterModelTable.__init__c                 C   r   )Nr   r   )r   r   r-   r1   rF   r   r   r   rH   !  r   zAlterModelTable.deconstructc                 C      | || jd| ji d S )Nr   )alter_model_optionsr    r   rL   r   r   r   rN   (  s   zAlterModelTable.state_forwardsc           	      C   s   |j || j}| |jj|rH|j || j}|||jj|jj t	|jj
|jj
D ]\}}|jjjjrG||jj|jjjj|jjjj q,d S d S r   )rQ   rR   r   rS   rT   rU   r   r>   r   r   r   r   r   r   )	r   r$   rW   rX   rY   r   r   r   r   r   r   r   r[   +  s(   

z!AlterModelTable.database_forwardsc                 C      |  ||||S r   r[   r   r   r   r   r_   ?  r.   z"AlterModelTable.database_backwardsc                 C   s"   d| j | jd ur| jf S df S )NzRename table for %s to %sz	(default)r   r   r   r   r   rc   B  s   zAlterModelTable.describec                 C   r   )Nzalter_%s_tablerd   r   r   r   r   re   H  r!   z'AlterModelTable.migration_name_fragment)r/   r0   r1   r   r   rH   rN   r[   r_   rc   r   re   r2   r   r   r,   r   r     s    r   c                       sP   e Zd Z fddZdd Zdd Zdd Zd	d
 Zdd Ze	dd Z
  ZS )AlterModelTableCommentc                    r   r   )table_commentr'   r   )r   r   r   r,   r   r   r   N  r   zAlterModelTableComment.__init__c                 C   r   )N)r   r   )r   r   r-   r1   rF   r   r   r   rH   R  r   z"AlterModelTableComment.deconstructc                 C   r   )Ndb_table_comment)r   r    r   rL   r   r   r   rN   Y  s   z%AlterModelTableComment.state_forwardsc                 C   sN   |j || j}| |jj|r%|j || j}|||jj|jj d S d S r   )	rQ   rR   r   rS   rT   rU   Zalter_db_table_commentr>   r   )r   r$   rW   rX   rY   r   r   r   r   r   r[   ^  s   z(AlterModelTableComment.database_forwardsc                 C   r   r   r   r   r   r   r   r_   h  r.   z)AlterModelTableComment.database_backwardsc                 C      d| j  dS )NzAlter z table commentr   r   r   r   r   rc   k  r&   zAlterModelTableComment.describec                 C   r   )NZalter_Z_table_commentrd   r   r   r   r   re   n  s   z.AlterModelTableComment.migration_name_fragment)r/   r0   r1   r   rH   rN   r[   r_   rc   r   re   r2   r   r   r,   r   r   M  s    
r   c                       st   e Zd ZdZ fddZedd Zdd Zdd	 Zd
d Z	dd Z
dd Zdd Zedd Z fddZ  ZS )r   Nc                    s.   |rt t|}t| | j| t | d S r   )r   r   setattrr   r'   r   )r   r   r   r,   r   r   r   v  s   z%AlterTogetherOptionOperation.__init__c                 C   s   t | | jS r   )getattrr   r   r   r   r   r   |  s   z)AlterTogetherOptionOperation.option_valuec                 C   s    d| j | j| ji}| jjg |fS r   )r   r   r   r-   r1   rF   r   r   r   rH     s   z(AlterTogetherOptionOperation.deconstructc                 C      | || j| j| ji d S r   )r   r    r   r   rL   r   r   r   rN     
   
z+AlterTogetherOptionOperation.state_forwardsc                 C   sp   |j || j}| |jj|r6|j || j}t|d| j }||t|j| jt	 t|j| jt	  d S d S )Nzalter_%s)
rQ   rR   r   rS   rT   rU   r   r   r>   r   )r   r$   rW   rX   rY   r   r   Zalter_togetherr   r   r   r[     s   z.AlterTogetherOptionOperation.database_forwardsc                 C   r   r   r   r   r   r   r   r_     r.   z/AlterTogetherOptionOperation.database_backwardsc                    s,   |  ||o| j pt fdd| jD S )Nc                 3   s    | ]} |v V  qd S r   r   rt   r   r   r   r;     r<   z@AlterTogetherOptionOperation.references_field.<locals>.<genexpr>)r%   r   anyr   r   r   r$   r   r   r   references_field  s   z-AlterTogetherOptionOperation.references_fieldc                 C   s   d| j | jt| jp
df S )Nz"Alter %s for %s (%s constraint(s))ra   )r   r   lenr   r   r   r   r   rc     s
   z%AlterTogetherOptionOperation.describec                 C   r   )Nzalter_%s_%s)r    r   r   r   r   r   re     r   z4AlterTogetherOptionOperation.migration_name_fragmentc                    s(   t  ||pt|tot|t| uS r   )r'   r)   r@   r   typer*   r,   r   r   r)     s   
z/AlterTogetherOptionOperation.can_reduce_through)r/   r0   r1   r   r   r   r   rH   rN   r[   r_   r   rc   r   re   r)   r2   r   r   r,   r   r   s  s    

r   c                       $   e Zd ZdZdZ fddZ  ZS )AlterUniqueTogetherz|
    Change the value of unique_together to the target one.
    Input value of unique_together must be a set of tuples.
    ro   c                       t  || d S r   r'   r   )r   r   ro   r,   r   r   r     r   zAlterUniqueTogether.__init__r/   r0   r1   r   r   r   r2   r   r   r,   r   r         r   c                       r   )AlterIndexTogetherzz
    Change the value of index_together to the target one.
    Input value of index_together must be a set of tuples.
    rp   c                    r   r   r   )r   r   rp   r,   r   r   r     r   zAlterIndexTogether.__init__r   r   r   r,   r   r     r   r   c                       s`   e Zd ZdZdZ fddZdd Zdd Zd	d
 Zdd Z	dd Z
dd Zedd Z  ZS )r   z9Represent a change with the order_with_respect_to option.rh   c                    r   r   )rh   r'   r   )r   r   rh   r,   r   r   r     r   z AlterOrderWithRespectTo.__init__c                 C   r   )Nr   rh   )r   rh   r-   r1   rF   r   r   r   rH     r   z#AlterOrderWithRespectTo.deconstructc                 C   r   r   )r   r    r   rh   rL   r   r   r   rN     r   z&AlterOrderWithRespectTo.state_forwardsc                 C   s   |j || j}| |jj|rI|j || j}|jjr,|jjs,|||j	d d S |jjrK|jjsM|j	d}|
 sAd|_||| d S d S d S d S )N_orderr   )rQ   rR   r   rS   rT   rU   r>   rh   Zremove_fieldr   Zhas_defaultdefaultZ	add_field)r   r$   rW   rX   rY   Zto_model
from_modelrg   r   r   r   r[     s.   z)AlterOrderWithRespectTo.database_forwardsc                 C   s   |  |||| d S r   r   r   r   r   r   r_     s   z*AlterOrderWithRespectTo.database_backwardsc                 C   s    |  ||o| jd u p|| jkS r   )r%   rh   r   r   r   r   r      s   z(AlterOrderWithRespectTo.references_fieldc                 C   r   )Nz%Set order_with_respect_to on %s to %sr   r   r   r   r   rc     s   z AlterOrderWithRespectTo.describec                 C   r   )Nzalter_%s_order_with_respect_tord   r   r   r   r   re     r!   z/AlterOrderWithRespectTo.migration_name_fragment)r/   r0   r1   r   r   r   rH   rN   r[   r_   r   rc   r   re   r2   r   r   r,   r   r     s    r   c                       s\   e Zd ZdZg dZ fddZdd Zdd Zd	d
 Zdd Z	dd Z
edd Z  ZS )r   z
    Set new model options that don't directly affect the database schema
    (like verbose_name, permissions, ordering). Python code in migrations
    may still need them.
    )Zbase_manager_nameZdefault_manager_nameZdefault_related_nameZget_latest_byZmanagedZorderingZpermissionsZdefault_permissionsZselect_on_saveZverbose_nameZverbose_name_pluralc                    r   r   )r5   r'   r   )r   r   r5   r,   r   r   r   &  r   zAlterModelOptions.__init__c                 C   r   )N)r   r5   )r   r5   r-   r1   rF   r   r   r   rH   *  r   zAlterModelOptions.deconstructc                 C   s   | || j| j| j d S r   )r   r    r5   r   rL   r   r   r   rN   1  s   z AlterModelOptions.state_forwardsc                 C      d S r   r   r   r   r   r   r[   9     z#AlterModelOptions.database_forwardsc                 C   r   r   r   r   r   r   r   r_   <  r   z$AlterModelOptions.database_backwardsc                 C   r   )NzChange Meta options on %sr   r   r   r   r   rc   ?  r   zAlterModelOptions.describec                 C   r   )Nzalter_%s_optionsrd   r   r   r   r   re   B  r!   z)AlterModelOptions.migration_name_fragment)r/   r0   r1   r   r   r   rH   rN   r[   r_   rc   r   re   r2   r   r   r,   r   r     s    r   c                       sZ   e Zd ZdZdgZ fddZdd Zdd Zd	d
 Zdd Z	dd Z
edd Z  ZS )r   zAlter the model's managers.r6   c                    r   r   )r6   r'   r   )r   r   r6   r,   r   r   r   L  r   zAlterModelManagers.__init__c                 C   s   | j j| j| jgi fS r   )r-   r1   r   r6   r   r   r   r   rH   P  r   zAlterModelManagers.deconstructc                 C   r   r   )Zalter_model_managersr    r6   rL   r   r   r   rN   S  r   z!AlterModelManagers.state_forwardsc                 C   r   r   r   r   r   r   r   r[   V  r   z$AlterModelManagers.database_forwardsc                 C   r   r   r   r   r   r   r   r_   Y  r   z%AlterModelManagers.database_backwardsc                 C   r   )NzChange managers on %sr   r   r   r   r   rc   \  r   zAlterModelManagers.describec                 C   r   )Nzalter_%s_managersrd   r   r   r   r   re   _  r!   z*AlterModelManagers.migration_name_fragment)r/   r0   r1   r   r   r   rH   rN   r[   r_   rc   r   re   r2   r   r   r,   r   r   G  s    r   c                   @   s   e Zd ZdZedd ZdS )r   ry   c                 C   r   r   )r   r   r   r   r   r   r   g  r!   zIndexOperation.model_name_lowerN)r/   r0   r1   r   r   r   r   r   r   r   r   d  s    r   c                   @   r   )r   zAdd an index on a model.c                 C   s"   || _ |jstd| || _d S )NzSIndexes passed to AddIndex operations require a name argument. %r doesn't have one.)r   r   r   rz   )r   r   rz   r   r   r   r   o  s   
zAddIndex.__init__c                 C   r   r   )	add_indexr   rz   rL   r   r   r   rN   x  r   zAddIndex.state_forwardsc                 C   6   |j || j}| |jj|r||| j d S d S r   )rQ   rR   r   rS   rT   rU   r   rz   rV   r   r   r   r[   {     zAddIndex.database_forwardsc                 C   s6   |j || j}| |jj|r||| j d S d S r   )rQ   rR   r   rS   rT   rU   remove_indexrz   rV   r   r   r   r_     r   zAddIndex.database_backwardsc                 C   r   )N)r   rz   )r   rz   r-   r1   rF   r   r   r   rH        zAddIndex.deconstructc                 C   sN   | j jrd| j jddd | j jD | jf S d| j jd| j j| jf S )Nz!Create index %s on %s on model %s, c                 S   s   g | ]}t |qS r   )rA   )r9   
expressionr   r   r   rm     s    z%AddIndex.describe.<locals>.<listcomp>z*Create index %s on field(s) %s of model %s)rz   Zexpressionsr   joinr   r4   r   r   r   r   rc     s   zAddIndex.describec                 C      d| j | jj f S Nz%s_%s)r   rz   r   r   r   r   r   r   re        z AddIndex.migration_name_fragmentNr/   r0   r1   r   r   rN   r[   r_   rH   rc   r   re   r   r   r   r   r   l  s    	r   c                   @   r   )r   zRemove an index from a model.c                 C      || _ || _d S r   r   r   r   r   r   r   r   r   r        
zRemoveIndex.__init__c                 C   r   r   )r   r   r   rL   r   r   r   rN     r   zRemoveIndex.state_forwardsc                 C   sP   |j || j}| |jj|r&|j|| jf }|| j	}|
|| d S d S r   )rQ   rR   r   rS   rT   rU   r   r   get_index_by_namer   r   )r   r$   rW   rX   rY   rZ   from_model_staterz   r   r   r   r[        zRemoveIndex.database_forwardsc                 C   P   |j || j}| |jj|r&|j|| jf }|| j	}|
|| d S d S r   )rQ   rR   r   rS   rT   rU   r   r   r   r   r   )r   r$   rW   rX   rY   rZ   to_model_staterz   r   r   r   r_     r   zRemoveIndex.database_backwardsc                 C   r   Nr   )r   r   r-   r1   rF   r   r   r   rH     r   zRemoveIndex.deconstructc                 C   r   )NzRemove index %s from %sr   r   r   r   r   r   rc     r.   zRemoveIndex.describec                 C      d| j | j f S Nzremove_%s_%sr   r   r   r   r   r   r   re        z#RemoveIndex.migration_name_fragmentNr   r   r   r   r   r     s    r   c                       sv   e Zd ZdZdddZedd Zedd Zd	d
 Zdd Z	dd Z
dd Zdd Zedd Z fddZ  ZS )r   zRename an index.Nc                 C   s<   |s|st d|r|rt d|| _|| _|| _|| _d S )NzHRenameIndex requires one of old_name and old_fields arguments to be set.z;RenameIndex.old_name and old_fields are mutually exclusive.)r   r   rw   rv   r{   )r   r   rw   rv   r{   r   r   r   r     s   
zRenameIndex.__init__c                 C   r   r   r   r   r   r   r   r     r!   zRenameIndex.old_name_lowerc                 C   r   r   r   r   r   r   r   r     r!   zRenameIndex.new_name_lowerc                 C   s<   | j | jd}| jr| j|d< | jr| j|d< | jjg |fS )N)r   rw   rv   r{   )r   rw   rv   r{   r-   r1   rF   r   r   r   rH     s   

zRenameIndex.deconstructc                 C   sX   | j r||| jtj| j | jd ||| jtj| j  d S |	|| j| j
| j d S )Nr|   )r{   r   r   r   r   rw   Zremove_model_optionsr   r   rename_indexrv   rL   r   r   r   rN     s   zRenameIndex.state_forwardsc                    s   |j || j}| |jj|sd S | jrP|j || j  fdd| jD }|j |dd}t|dkrEt	dt| j
jd|f tj| j|d d	}n|j|| jf }	|	| j}|j| jkrfd S |j|| jf }
|
| j}|||| d S )
Nc                    s   g | ]	} j |jqS r   )r>   r   column)r9   rg   r   r   r   rm     s    z1RenameIndex.database_forwards.<locals>.<listcomp>T)Zcolumn_namesrz   r	   z.Found wrong number (%s) of indexes for %s(%s).r   r   r|   )rQ   rR   r   rS   rT   rU   r{   Z_constraint_namesr   r   r>   r   r   r   r   r   r   rv   r   rw   r   )r   r$   rW   rX   rY   rZ   columnsZmatching_index_nameZ	old_indexr   r   Z	new_indexr   r   r   r[     s>   
zRenameIndex.database_forwardsc                 C   sf   | j rd S | j| j| _| _| j| j| _| _| |||| | j| j| _| _| j| j| _| _d S r   )r{   r   r   rv   rw   r[   r   r   r   r   r_   )  s   

zRenameIndex.database_backwardsc                 C   s>   | j rd| j  d| j d| j S d| j d| j d| j S )NzRename index z on z to zRename unnamed index for )rv   r   rw   r{   r   r   r   r   rc   <  s   zRenameIndex.describec                 C   s0   | j rd| j| jf S d| jd| j| jf S )Nr   zrename_%s_%s_%sr:   )rv   r   r   r   r   r{   r   r   r   r   re   F  s   
z#RenameIndex.migration_name_fragmentc                    sP   t |tr!| j|jkr!|jr!| j|jkr!t| j|j| j| jdgS t	 
||S )N)rw   rv   r{   )r@   r   r   rv   r   r   r   rw   r{   r'   r(   r*   r,   r   r   r(   P  s   zRenameIndex.reduce)NN)r/   r0   r1   r   r   r   r   r   rH   rN   r[   r_   rc   r   re   r(   r2   r   r   r,   r   r     s    


%

	r   c                   @   r   )AddConstraintconstraintsc                 C   r   r   r   
constraint)r   r   r   r   r   r   r   e  r   zAddConstraint.__init__c                 C   r   r   )add_constraintr   r   rL   r   r   r   rN   i  r   zAddConstraint.state_forwardsc                 C   r   r   )rQ   rR   r   rS   rT   rU   r   r   rV   r   r   r   r[   l  r   zAddConstraint.database_forwardsc                 C   r   r   )rQ   rR   r   rS   rT   rU   remove_constraintr   rV   r   r   r   r_   q  r   z AddConstraint.database_backwardsc                 C      | j jg | j| jdfS )Nr   )r-   r/   r   r   r   r   r   r   rH   v     zAddConstraint.deconstructc                 C   s   d| j j| jf S )Nz Create constraint %s on model %s)r   r   r   r   r   r   r   rc     s   zAddConstraint.describec                 C   r   r   )r   r   r   r   r   r   r   r   re     r   z%AddConstraint.migration_name_fragmentNr/   r0   r1   r   r   rN   r[   r_   rH   rc   r   re   r   r   r   r   r   b  s    
r   c                   @   r   )RemoveConstraintr   c                 C   r   r   r   r   r   r   r   r     r   zRemoveConstraint.__init__c                 C   r   r   )r   r   r   rL   r   r   r   rN     r   zRemoveConstraint.state_forwardsc                 C   sP   |j || j}| |jj|r&|j|| jf }|| j	}|
|| d S d S r   )rQ   rR   r   rS   rT   rU   r   r   get_constraint_by_namer   r   )r   r$   rW   rX   rY   rZ   r   r   r   r   r   r[     r   z"RemoveConstraint.database_forwardsc                 C   r   r   )rQ   rR   r   rS   rT   rU   r   r   r   r   r   )r   r$   rW   rX   rY   rZ   r   r   r   r   r   r_     r   z#RemoveConstraint.database_backwardsc                 C   r   r   )r-   r/   r   r   r   r   r   r   rH     r   zRemoveConstraint.deconstructc                 C   r   )Nz"Remove constraint %s from model %sr   r   r   r   r   rc     r.   zRemoveConstraint.describec                 C   r   r   r   r   r   r   r   re     r   z(RemoveConstraint.migration_name_fragmentNr   r   r   r   r   r     s    
r   N)'Z	django.dbr   Z$django.db.migrations.operations.baser   Zdjango.db.migrations.stater   Zdjango.db.migrations.utilsr   r   Zdjango.db.models.optionsr   Zdjango.utils.functionalr   r4   r
   r   r   r   r   r   r   r3   r}   r~   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   <module>   s<    
  O#w
3&AD76+ )