o
    e̪                     @   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)arg_nameobjs	used_valsval r   Y/var/www/html/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 )Nr7   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)hasattrrA   label_lower
isinstancestrr!   )r<   baser   r   r   r>   9   s    


r9   c                 s   r:   r   r   r;   r   r   r   r>   B   r?   )	r7   r8   r   Modelr@   r9   r*   r   r   )r   r   r7   r8   r@   r9   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   r7   r8   r@   objectsr9   )
r   r7   r8   r@   r   rG   r9   Managerr0   r4   r   kwargsr   r   r   deconstructD   s   


zCreateModel.deconstructc              
   C   s6   | t|| jt| jt| jt| jt| j	 d S r   )
	add_modelr   r   listr7   dictr8   tupler@   r9   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alias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   rV   rW   r   rX   rY   rZ   delete_modelr\   r   r   r   database_backwardsb   rb   zCreateModel.database_backwardsc                 C   s    d| j ddr
dnd| jf S )NzCreate %smodel %sproxyFzproxy  )r8   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   rG   rD   rF   	ModelBaserE   r   r7   r   )r   r   r'   r#   reference_model_tuplerF   _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$i| j
| jdgS t  t%r fdd| jdg D }t| j| j	i | jd|i| j
| jdgS t  t&rE j'rE fdd| jdg D }	|	r|	| jd< n| jdd  t| j| j	i | jdg | jdg t(j) j' jdi| j
| jdgS t* + |S )Nrg   F)r7   r8   r@   r9   order_with_respect_toc                    s(   g | ]\}}|| j kr jn|fqS r   )r   rp   r<   nvr.   r   r   
<listcomp>       z&CreateModel.reduce.<locals>.<listcomp>)unique_togetherindex_togetherc                 3   s&    | ]}t  fd d|D V  qdS )c                 3   s    | ]
}| j kr|V  qd S r   rk   r<   fru   r   r   r>      s    z/CreateModel.reduce.<locals>.<genexpr>.<genexpr>NrP   r<   r7   ru   r   r   r>      s    
z%CreateModel.reduce.<locals>.<genexpr>c                    s&   g | ]\}}|   jkr||fqS r   r%   rr   ru   r   r   rv     s
    c                    s"   h | ]}t  fd d|D qS )c                 3   s$    | ]}| j kr jn|V  qd S r   old_namenew_namerz   ru   r   r   r>     s
    
z/CreateModel.reduce.<locals>.<setcomp>.<genexpr>r|   r}   ru   r   r   	<setcomp>  s    z%CreateModel.reduce.<locals>.<setcomp>c                    s(   g | ]\}}| j kr jn||fqS r   r~   rr   ru   r   r   rv   )  rw   indexesc                    s   g | ]
}|j  j kr|qS r   r   )r<   indexru   r   r   rv   G  s
    c                    s   h | ]	}| j kr|qS r   )
old_fieldsr}   ru   r   r   r   Y  s
    
ry   r7   r   ),rD   DeleteModelr#   r8   ri   RenameModelold_name_lowerr6   r   r7   r@   r9   AlterModelOptionsALTER_OPTION_KEYSpopr   AlterModelManagersAlterTogetherOptionOperationoption_nameoption_valueAlterOrderWithRespectTorq   r   model_name_lowerr
   rp   r   r   copyr   filterboolr   r   IndexOperationAddIndexr   RemoveIndexRenameIndexr   r   Indexr*   r+   )
r   r.   r'   r8   keyr   optionrq   options_indexesoptions_index_togetherr/   ru   r   r+      s  






	













	zCreateModel.reduce)NNN)r2   r3   r4   __doc__serialization_expand_argsr   rL   rS   ra   rf   rj   propertyrl   r(   r+   r5   r   r   r/   r   r6   )   s    
r6   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   r0   r4   rJ   r   r   r   rL   y  s   zDeleteModel.deconstructc                 C   s   | || j d S r   )remove_modelr#   rQ   r   r   r   rS        zDeleteModel.state_forwardsc                 C   rc   r   rd   r\   r   r   r   ra     rb   zDeleteModel.database_forwardsc                 C   rT   r   rU   r\   r   r   r   rf     rb   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   rj     r   zDeleteModel.describec                 C   r   )Nz	delete_%srk   r"   r   r   r   rl     r$   z#DeleteModel.migration_name_fragmentN)r2   r3   r4   r   rL   rS   ra   rf   r(   rj   r   rl   r   r   r   r   r   v  s    r   c                       s   e Zd ZdZ fddZedd Zedd Zdd	 Zd
d Z	dd Z
dd Zdd Zdd Zedd Z fddZ  ZS )r   zRename a model.c                    s   || _ || _t | d S r   )r   r   r*   r   )r   r   r   r/   r   r   r     s   zRenameModel.__init__c                 C   r    r   r   r!   r"   r   r   r   r     r$   zRenameModel.old_name_lowerc                 C   r    r   r   r!   r"   r   r   r   new_name_lower  r$   zRenameModel.new_name_lowerc                 C      | j | jd}| jjg |fS )Nr~   )r   r   r0   r4   rJ   r   r   r   rL        zRenameModel.deconstructc                 C      | || j| j d S r   )rename_modelr   r   rQ   r   r   r   rS        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)rV   rW   r   rX   rY   rZ   r   alter_db_tablerA   db_tablerelated_objectsrelated_modelr   r'   
model_name	get_fieldrp   r   alter_fieldziplocal_many_to_manyr`   remote_fieldthroughauto_created_alter_many_to_many)r   r'   r]   r^   r_   	new_model	old_modelrelated_objectr`   related_keyto_fieldr7   	old_field	new_fieldr   r   r   ra     sP   

zRenameModel.database_forwardsc                 C   s\   | j | j| _| _ | j| j| _| _| |||| | j | j| _| _ | j| j| _| _d S r   )r   r   r   r   ra   r   r'   r]   r^   r_   r   r   r   rf     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 %sr~   r"   r   r   r   rj     r1   zRenameModel.describec                 C   r   )Nrename_%s_%s)r   r   r"   r   r   r   rl        z#RenameModel.migration_name_fragmentc                    sH   t |tr| j|jkrt| j|jgS tt| ||p#|	| j| S r   )
rD   r   r   r   r   r   r*   r   r+   r(   r-   r/   r   r   r+     s   
zRenameModel.reduce)r2   r3   r4   r   r   r   r   r   rL   rS   ra   rf   r(   rj   r   rl   r+   r5   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   )rD   r0   r   r#   r*   r+   r-   r/   r   r   r+     s
   zModelOptionOperation.reduce)r2   r3   r4   r+   r5   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   r0   r4   rJ   r   r   r   rL   !  r   zAlterModelTable.deconstructc                 C      | || jd| ji d S )Nr   )alter_model_optionsr#   r   rQ   r   r   r   rS   (  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   )rV   rW   r   rX   rY   rZ   r   rA   r   r   r   r   r   r   )	r   r'   r]   r^   r_   r   r   r   r   r   r   r   ra   +  s(   

z!AlterModelTable.database_forwardsc                 C      |  ||||S r   ra   r   r   r   r   rf   ?  r1   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   rj   B  s   zAlterModelTable.describec                 C   r   )Nzalter_%s_tablerk   r"   r   r   r   rl   H  r$   z'AlterModelTable.migration_name_fragment)r2   r3   r4   r   r   rL   rS   ra   rf   rj   r   rl   r5   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   r0   r4   rJ   r   r   r   rL   R  r   z"AlterModelTableComment.deconstructc                 C   r   )Ndb_table_comment)r   r#   r   rQ   r   r   r   rS   Y  s   z%AlterModelTableComment.state_forwardsc                 C   sN   |j || j}| |jj|r%|j || j}|||jj|jj d S d S r   )	rV   rW   r   rX   rY   rZ   alter_db_table_commentrA   r   )r   r'   r]   r^   r_   r   r   r   r   r   ra   ^  s   z(AlterModelTableComment.database_forwardsc                 C   r   r   r   r   r   r   r   rf   h  r1   z)AlterModelTableComment.database_backwardsc                 C      d| j  dS )NzAlter z table commentr   r"   r   r   r   rj   k  r)   zAlterModelTableComment.describec                 C   r   )Nalter__table_commentrk   r"   r   r   r   rl   n  s   z.AlterModelTableComment.migration_name_fragment)r2   r3   r4   r   rL   rS   ra   rf   rj   r   rl   r5   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   r0   r4   rJ   r   r   r   rL     s   z(AlterTogetherOptionOperation.deconstructc                 C      | || j| j| ji d S r   )r   r#   r   r   rQ   r   r   r   rS     
   
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)
rV   rW   r   rX   rY   rZ   r   r   rA   r   )r   r'   r]   r^   r_   r   r   alter_togetherr   r   r   ra     s   z.AlterTogetherOptionOperation.database_forwardsc                 C   r   r   r   r   r   r   r   rf     r1   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   r}   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))rh   )r   r   lenr   r"   r   r   r   rj     s
   z%AlterTogetherOptionOperation.describec                 C   r   )Nzalter_%s_%s)r#   r   r"   r   r   r   rl     r   z4AlterTogetherOptionOperation.migration_name_fragmentc                    s(   t  ||pt|tot|t| uS r   )r*   r,   rD   r   typer-   r/   r   r   r,     s   
z/AlterTogetherOptionOperation.can_reduce_through)r2   r3   r4   r   r   r   r   rL   rS   ra   rf   r   rj   r   rl   r,   r5   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.
    rx   c                       t  || d S r   r*   r   )r   r   rx   r/   r   r   r     r   zAlterUniqueTogether.__init__r2   r3   r4   r   r   r   r5   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.
    ry   c                    r   r   r   )r   r   ry   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.rq   c                    r   r   )rq   r*   r   )r   r   rq   r/   r   r   r     r   z AlterOrderWithRespectTo.__init__c                 C   r   )Nr   rq   )r   rq   r0   r4   rJ   r   r   r   rL     r   z#AlterOrderWithRespectTo.deconstructc                 C   r   r   )r   r#   r   rq   rQ   r   r   r   rS     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   )rV   rW   r   rX   rY   rZ   rA   rq   remove_fieldr   has_defaultdefault	add_field)r   r'   r]   r^   r_   to_model
from_modelrp   r   r   r   ra     s.   z)AlterOrderWithRespectTo.database_forwardsc                 C   s   |  |||| d S r   r   r   r   r   r   rf     s   z*AlterOrderWithRespectTo.database_backwardsc                 C   s    |  ||o| jd u p|| jkS r   )r(   rq   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   rj     s   z AlterOrderWithRespectTo.describec                 C   r   )Nzalter_%s_order_with_respect_tork   r"   r   r   r   rl     r$   z/AlterOrderWithRespectTo.migration_name_fragment)r2   r3   r4   r   r   r   rL   rS   ra   rf   r   rj   r   rl   r5   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.
    )base_manager_namedefault_manager_namedefault_related_nameget_latest_bymanagedorderingpermissionsdefault_permissionsselect_on_saveverbose_nameverbose_name_pluralc                    r   r   )r8   r*   r   )r   r   r8   r/   r   r   r   &  r   zAlterModelOptions.__init__c                 C   r   )N)r   r8   )r   r8   r0   r4   rJ   r   r   r   rL   *  r   zAlterModelOptions.deconstructc                 C   s   | || j| j| j d S r   )r   r#   r8   r   rQ   r   r   r   rS   1  s   z AlterModelOptions.state_forwardsc                 C      d S r   r   r   r   r   r   ra   9     z#AlterModelOptions.database_forwardsc                 C   r   r   r   r   r   r   r   rf   <  r   z$AlterModelOptions.database_backwardsc                 C   r   )NzChange Meta options on %sr   r"   r   r   r   rj   ?  r   zAlterModelOptions.describec                 C   r   )Nzalter_%s_optionsrk   r"   r   r   r   rl   B  r$   z)AlterModelOptions.migration_name_fragment)r2   r3   r4   r   r   r   rL   rS   ra   rf   rj   r   rl   r5   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.r9   c                    r   r   )r9   r*   r   )r   r   r9   r/   r   r   r   L  r   zAlterModelManagers.__init__c                 C   s   | j j| j| jgi fS r   )r0   r4   r   r9   r"   r   r   r   rL   P  r   zAlterModelManagers.deconstructc                 C   r   r   )alter_model_managersr#   r9   rQ   r   r   r   rS   S  r   z!AlterModelManagers.state_forwardsc                 C   r   r   r   r   r   r   r   ra   V  r   z$AlterModelManagers.database_forwardsc                 C   r   r   r   r   r   r   r   rf   Y  r   z%AlterModelManagers.database_backwardsc                 C   r   )NzChange managers on %sr   r"   r   r   r   rj   \  r   zAlterModelManagers.describec                 C   r   )Nzalter_%s_managersrk   r"   r   r   r   rl   _  r$   z*AlterModelManagers.migration_name_fragment)r2   r3   r4   r   r   r   rL   rS   ra   rf   rj   r   rl   r5   r   r   r/   r   r   G  s    r   c                   @   s   e Zd ZdZedd ZdS )r   r   c                 C   r    r   )r   r!   r"   r   r   r   r   g  r$   zIndexOperation.model_name_lowerN)r2   r3   r4   r   r   r   r   r   r   r   r   d  s    r   c                       \   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 fddZ  ZS )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   r   )r   r   r   r   r   r   r   o  s   
zAddIndex.__init__c                 C   r   r   )	add_indexr   r   rQ   r   r   r   rS   x  r   zAddIndex.state_forwardsc                 C   6   |j || j}| |jj|r||| j d S d S r   )rV   rW   r   rX   rY   rZ   r   r   r\   r   r   r   ra   {     zAddIndex.database_forwardsc                 C   s6   |j || j}| |jj|r||| j d S d S r   )rV   rW   r   rX   rY   rZ   remove_indexr   r\   r   r   r   rf     r  zAddIndex.database_backwardsc                 C   r   N)r   r   )r   r   r0   r4   rJ   r   r   r   rL        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   )rE   )r<   
expressionr   r   r   rv     s    z%AddIndex.describe.<locals>.<listcomp>z*Create index %s on field(s) %s of model %s)r   expressionsr   joinr   r7   r"   r   r   r   rj     s   zAddIndex.describec                 C      d| j | jj f S Nz%s_%s)r   r   r   r!   r"   r   r   r   rl        z AddIndex.migration_name_fragmentc                    s^   t |tr| jj|jkrg S t |tr(| jj|jkr(|j| j_t| j| jdgS t	 
||S r  )rD   r   r   r   r   r   r   r   r   r*   r+   r-   r/   r   r   r+     s   
zAddIndex.reduce)r2   r3   r4   r   r   rS   ra   rf   rL   rj   r   rl   r+   r5   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   rQ   r   r   r   rS     r   zRemoveIndex.state_forwardsc                 C   sP   |j || j}| |jj|r&|j|| jf }|| j	}|
|| d S d S r   )rV   rW   r   rX   rY   rZ   r   r   get_index_by_namer   r  )r   r'   r]   r^   r_   r`   from_model_stater   r   r   r   ra        zRemoveIndex.database_forwardsc                 C   P   |j || j}| |jj|r&|j|| jf }|| j	}|
|| d S d S r   )rV   rW   r   rX   rY   rZ   r   r   r  r   r   )r   r'   r]   r^   r_   r`   to_model_stater   r   r   r   rf     r  zRemoveIndex.database_backwardsc                 C   r   Nr  )r   r   r0   r4   rJ   r   r   r   rL     r  zRemoveIndex.deconstructc                 C   r   )NzRemove index %s from %sr   r   r"   r   r   r   rj     r1   zRemoveIndex.describec                 C      d| j | j f S Nzremove_%s_%sr   r   r!   r"   r   r   r   rl        z#RemoveIndex.migration_name_fragmentN)r2   r3   r4   r   r   rS   ra   rf   rL   rj   r   rl   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   r   r   r   )r   r   r   r   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   r   r   r   )r   r   r   r   r0   r4   rJ   r   r   r   rL     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   r   remove_model_optionsr   r   rename_indexr   rQ   r   r   r   rS     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   )rA   r   column)r<   rp   r   r   r   rv     s    z1RenameIndex.database_forwards.<locals>.<listcomp>T)column_namesr   r	   z.Found wrong number (%s) of indexes for %s(%s).r  r   r   )rV   rW   r   rX   rY   rZ   r   _constraint_namesr   r   rA   r   r	  r   r   r   r  r   r   r   r  )r   r'   r]   r^   r_   r`   columnsmatching_index_name	old_indexr  r  	new_indexr   r  r   ra     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   r   r   ra   r   r   r   r   rf   1  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 )r   r   r   r   r"   r   r   r   rj   D  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=   )r   r   r   r   r	  r   r"   r   r   r   rl   N  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)r   r   r   )rD   r   r   r   r   r   r   r   r   r*   r+   r-   r/   r   r   r+   X  s   zRenameIndex.reduce)NN)r2   r3   r4   r   r   r   r   r   rL   rS   ra   rf   rj   r   rl   r+   r5   r   r   r/   r   r     s    


%

	r   c                       r   )AddConstraintconstraintsc                 C   r  r   r   
constraint)r   r   r)  r   r   r   r   m  r  zAddConstraint.__init__c                 C   r   r   )add_constraintr   r)  rQ   r   r   r   rS   q  r   zAddConstraint.state_forwardsc                 C   r  r   )rV   rW   r   rX   rY   rZ   r*  r)  r\   r   r   r   ra   t  r  zAddConstraint.database_forwardsc                 C   r  r   )rV   rW   r   rX   rY   rZ   remove_constraintr)  r\   r   r   r   rf   y  r  z AddConstraint.database_backwardsc                 C      | j jg | j| jdfS )Nr(  )r0   r2   r   r)  r"   r   r   r   rL   ~     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   rj     s   zAddConstraint.describec                 C   r
  r  )r   r)  r   r!   r"   r   r   r   rl     r  z%AddConstraint.migration_name_fragmentc                    s6   t |tr| j|jkr| jj|jkrg S t ||S r   )rD   RemoveConstraintr   r)  r   r*   r+   r-   r/   r   r   r+     s   zAddConstraint.reduce)r2   r3   r4   r   r   rS   ra   rf   rL   rj   r   rl   r+   r5   r   r   r/   r   r&  j  s    

r&  c                   @   r   )r.  r'  c                 C   r  r   r  r  r   r   r   r     r  zRemoveConstraint.__init__c                 C   r   r   )r+  r   r   rQ   r   r   r   rS     r   zRemoveConstraint.state_forwardsc                 C   sP   |j || j}| |jj|r&|j|| jf }|| j	}|
|| d S d S r   )rV   rW   r   rX   rY   rZ   r   r   get_constraint_by_namer   r+  )r   r'   r]   r^   r_   r`   r  r)  r   r   r   ra     r  z"RemoveConstraint.database_forwardsc                 C   r  r   )rV   rW   r   rX   rY   rZ   r   r   r/  r   r*  )r   r'   r]   r^   r_   r`   r  r)  r   r   r   rf     r  z#RemoveConstraint.database_backwardsc                 C   r,  r  )r0   r2   r   r   r"   r   r   r   rL     r-  zRemoveConstraint.deconstructc                 C   r   )Nz"Remove constraint %s from model %sr  r"   r   r   r   rj     r1   zRemoveConstraint.describec                 C   r  r  r  r"   r   r   r   rl     r  z(RemoveConstraint.migration_name_fragmentN)r2   r3   r4   r   r   rS   ra   rf   rL   rj   r   rl   r   r   r   r   r.    s    
r.  N)'	django.dbr   $django.db.migrations.operations.baser   django.db.migrations.stater   django.db.migrations.utilsr   r   django.db.models.optionsr   django.utils.functionalr   r7   r
   r   r   r   r   r   r   r6   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>+ 2