U
     5øi;K  ã                   @   s†  d dl Z d dlmZ d dlmZmZ d dlmZmZ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 dgZG dd„ deeƒZdJdd„ZG dd„ deƒZG dd„ deƒZG dd„ deƒZG dd„ deƒZG dd„ deƒZG dd„ deƒZG dd„ dƒZG dd„ dej ƒZ!G d d!„ d!eej"ƒZ#e $e¡ e $e¡ e $e¡ e $e¡ e $e¡ e $e!¡ e $e#¡ G d"d#„ d#eƒZ%G d$d%„ d%e%ƒZ&G d&d'„ d'ƒZ'G d(d)„ d)ej(ƒZ)G d*d+„ d+ej*ƒZ+G d,d-„ d-e!ƒZ,G d.d/„ d/ee'ej-ƒZ.G d0d1„ d1ee'ej"ƒZ/G d2d3„ d3e'ej0ƒZ1G d4d5„ d5ee'ej2ƒZ3G d6d7„ d7e'ej4ƒZ5G d8d9„ d9ee'ej6ƒZ7G d:d;„ d;e'ej8ƒZ9G d<d=„ d=ee'ej:ƒZ;G d>d?„ d?ƒZ<G d@dA„ dAe<ej=ƒZ>G dBdC„ dCe<ej?ƒZ@G dDdE„ dEe<ejAƒZBG dFdG„ dGe<ejCƒZDe% $e+¡ e% $e,¡ e% $e.¡ e% $e)¡ e% $e/¡ e% $e1¡ e% $e3¡ e% $e5¡ e% $e7¡ e% $e9¡ e% $e;¡ e% $e>¡ e% $e@¡ e% $eB¡ e% $eD¡ G dHdI„ dIƒZEdS )Ké    N)Úforms)ÚchecksÚ
exceptions)ÚNotSupportedErrorÚconnectionsÚrouter)Úlookups)ÚPostgresOperatorLookupÚ	Transform)Úgettext_lazyé   )ÚField)ÚCheckFieldDefaultMixinÚ	JSONFieldc                       sž   e Zd ZdZedƒZdedƒiZdZd‡ fdd„	Z‡ fd	d
„Z	dd„ Z
‡ fdd„Zdd„ Zdd„ Zdd„ Z‡ fdd„Z‡ fdd„Zdd„ Z‡ fdd„Z‡  ZS )r   FzA JSON objectÚinvalidzValue must be valid JSON.)Údictz{}Nc                    sJ   |rt |ƒstdƒ‚|r(t |ƒs(tdƒ‚|| _|| _tƒ j||f|Ž d S )Nz0The encoder parameter must be a callable object.z0The decoder parameter must be a callable object.)ÚcallableÚ
ValueErrorÚencoderÚdecoderÚsuperÚ__init__)ÚselfZverbose_nameÚnamer   r   Úkwargs©Ú	__class__© ú@/tmp/pip-unpacked-wheel-gcyiijx6/django/db/models/fields/json.pyr      s    zJSONField.__init__c                    s0   t ƒ jf |Ž}| d¡pg }| |  |¡¡ |S )NÚ	databases)r   ÚcheckÚgetÚextendÚ_check_supported)r   r   Úerrorsr   r   r   r   r    $   s    zJSONField.checkc                 C   sz   g }|D ]l}t  || j¡sqt| }| jjjr@| jjj|jkr@qd| jjjks|jj	s| 
tjd|j | jdd�¡ q|S )NÚsupports_json_fieldz%s does not support JSONFields.zfields.E180)ÚobjÚid)r   Zallow_migrate_modelÚmodelr   Z_metaZrequired_db_vendorÚvendorZrequired_db_featuresÚfeaturesr%   Úappendr   ÚErrorZdisplay_name)r   r   r$   ÚdbÚ
connectionr   r   r   r#   *   s0    ÿþÿþÿüÿzJSONField._check_supportedc                    sF   t ƒ  ¡ \}}}}| jd k	r&| j|d< | jd k	r:| j|d< ||||fS )Nr   r   )r   Údeconstructr   r   )r   r   ÚpathÚargsr   r   r   r   r/   C   s    



zJSONField.deconstructc                 C   sV   |d kr|S t |tƒr$t |tƒs$|S ztj|| jd�W S  tjk
rP   | Y S X d S ©N©Úcls)Ú
isinstanceÚKeyTransformÚstrÚjsonÚloadsr   ÚJSONDecodeError)r   ÚvalueZ
expressionr.   r   r   r   Úfrom_db_valueK   s    zJSONField.from_db_valuec                 C   s   dS )Nr   r   ©r   r   r   r   Úget_internal_typeW   s    zJSONField.get_internal_typec                 C   s   |d kr|S t j|| jd�S r2   )r8   Údumpsr   )r   r;   r   r   r   Úget_prep_valueZ   s    zJSONField.get_prep_valuec                    s   t ƒ  |¡}|r|S t|ƒS ©N)r   Úget_transformÚKeyTransformFactory)r   r   Z	transformr   r   r   rB   _   s    zJSONField.get_transformc                    sV   t ƒ  ||¡ ztj|| jd� W n. tk
rP   tj| jd dd|id�‚Y nX d S )Nr3   r   r;   )ÚcodeÚparams)	r   Úvalidater8   r?   r   Ú	TypeErrorr   ZValidationErrorZerror_messages)r   r;   Zmodel_instancer   r   r   rF   e   s    ýzJSONField.validatec                 C   s
   |   |¡S rA   )Zvalue_from_object)r   r&   r   r   r   Úvalue_to_stringp   s    zJSONField.value_to_stringc                    s    t ƒ jf tj| j| jdœ|–ŽS )N)Z
form_classr   r   )r   Ú	formfieldr   r   r   r   )r   r   r   r   r   rI   s   s    ýüzJSONField.formfield)NNNN)Ú__name__Ú
__module__Ú__qualname__Zempty_strings_allowedÚ_ÚdescriptionZdefault_error_messagesZ_default_hintr   r    r#   r/   r<   r>   r@   rB   rF   rH   rI   Ú__classcell__r   r   r   r   r      s*    ÿ       ÿTc              	   C   sl   |r
dgng }| D ]N}zt |ƒ}W n. tk
rP   | d¡ | t |¡¡ Y qX | d| ¡ qd |¡S )Nú$Ú.z[%s]Ú )Úintr   r+   r8   r?   Újoin)Úkey_transformsÚinclude_rootr0   Úkey_transformÚnumr   r   r   Úcompile_json_path|   s    
rY   c                   @   s   e Zd ZdZdZdd„ ZdS )ÚDataContainsÚcontainsz@>c                 C   sP   |j jstdƒ‚|  ||¡\}}|  ||¡\}}t|ƒt|ƒ }d||f |fS )Nz:contains lookup is not supported on this database backend.úJSON_CONTAINS(%s, %s)©r*   Zsupports_json_field_containsr   Úprocess_lhsÚprocess_rhsÚtuple©r   Úcompilerr.   ÚlhsÚ
lhs_paramsÚrhsÚ
rhs_paramsrE   r   r   r   Úas_sql�   s    ÿzDataContains.as_sqlN©rJ   rK   rL   Úlookup_nameÚpostgres_operatorrg   r   r   r   r   rZ   ‰   s   rZ   c                   @   s   e Zd ZdZdZdd„ ZdS )ÚContainedByZcontained_byz<@c                 C   sP   |j jstdƒ‚|  ||¡\}}|  ||¡\}}t|ƒt|ƒ }d||f |fS )Nz>contained_by lookup is not supported on this database backend.r\   r]   ra   r   r   r   rg   œ   s    ÿzContainedBy.as_sqlNrh   r   r   r   r   rk   ˜   s   rk   c                       sB   e Zd ZdZddd„Zdd„ Zdd„ Z‡ fdd	„Zd
d„ Z‡  Z	S )ÚHasKeyLookupNc              	   C   sà   t | jtƒr*| j ||¡\}}}t|ƒ}n|  ||¡\}}d}|| }| j}	g }
t |	ttfƒsd|	g}	|	D ]B}t |tƒrŠ| ||¡�^ }}n|g}|
 	d|t|dd�f ¡ qh| j
rÌd| j
 |gt|
ƒ ¡ }|t|ƒt|
ƒ fS )NrP   z%s%sF)rV   z(%s))r5   rc   r6   Úpreprocess_lhsrY   r^   re   Úlistr`   r+   Úlogical_operatorrT   Úlen)r   rb   r.   Útemplaterc   rd   Zlhs_key_transformsZlhs_json_pathÚsqlre   rf   ÚkeyrM   Úrhs_key_transformsr   r   r   rg   ª   s*    


þ
zHasKeyLookup.as_sqlc                 C   s   | j ||dd�S )Nz"JSON_CONTAINS_PATH(%s, 'one', %%s)©rq   ©rg   ©r   rb   r.   r   r   r   Úas_mysqlÆ   s    zHasKeyLookup.as_mysqlc                 C   s$   | j ||dd�\}}|t|ƒ g fS )NzJSON_EXISTS(%s, '%%s')ru   )rg   r`   )r   rb   r.   rr   rE   r   r   r   Ú	as_oracleÉ   s    zHasKeyLookup.as_oraclec                    sX   t | jtƒrJ| j ||¡�^ }}|d d… D ]}t|| jƒ| _q,|d | _tƒ  ||¡S )Néÿÿÿÿ)r5   re   r6   rm   rc   r   Úas_postgresql)r   rb   r.   rM   rt   rs   r   r   r   r{   Ï   s    
zHasKeyLookup.as_postgresqlc                 C   s   | j ||dd�S )NúJSON_TYPE(%s, %%s) IS NOT NULLru   rv   rw   r   r   r   Ú	as_sqlite×   s    zHasKeyLookup.as_sqlite)N)
rJ   rK   rL   ro   rg   rx   ry   r{   r}   rO   r   r   r   r   rl   §   s   
rl   c                   @   s   e Zd ZdZdZdZdS )ÚHasKeyZhas_keyú?FN)rJ   rK   rL   ri   rj   Zprepare_rhsr   r   r   r   r~   Û   s   r~   c                   @   s    e Zd ZdZdZdZdd„ ZdS )ÚHasKeysZhas_keysz?&z AND c                 C   s   dd„ | j D ƒS )Nc                 S   s   g | ]}t |ƒ‘qS r   )r7   )Ú.0Úitemr   r   r   Ú
<listcomp>ç   s     z+HasKeys.get_prep_lookup.<locals>.<listcomp>)re   r=   r   r   r   Úget_prep_lookupæ   s    zHasKeys.get_prep_lookupN)rJ   rK   rL   ri   rj   ro   r„   r   r   r   r   r€   á   s   r€   c                   @   s   e Zd ZdZdZdZdS )Ú
HasAnyKeysZhas_any_keysz?|z OR N)rJ   rK   rL   ri   rj   ro   r   r   r   r   r…   ê   s   r…   c                       s,   e Zd ZdZ‡ fdd„Z‡ fdd„Z‡  ZS )ÚCaseInsensitiveMixinzý
    Mixin to allow case-insensitive comparison of JSON values on MySQL.
    MySQL handles strings used in JSON context using the utf8mb4_bin collation.
    Because utf8mb4_bin is a binary collation, comparison of JSON values is
    case-sensitive.
    c                    s0   t ƒ  ||¡\}}|jdkr(d| |fS ||fS ©NÚmysqlz	LOWER(%s))r   r^   r)   )r   rb   r.   rc   rd   r   r   r   r^   ÷   s    
z CaseInsensitiveMixin.process_lhsc                    s0   t ƒ  ||¡\}}|jdkr(d| |fS ||fS r‡   )r   r_   r)   ©r   rb   r.   re   rf   r   r   r   r_   ý   s    
z CaseInsensitiveMixin.process_rhs)rJ   rK   rL   Ú__doc__r^   r_   rO   r   r   r   r   r†   ð   s   r†   c                       s    e Zd ZdZ‡ fdd„Z‡  ZS )Ú	JSONExactTc                    sV   t ƒ  ||¡\}}|dkr*|d gkr*dg}|jdkrNdgt|ƒ }|t|ƒ }||fS )Nú%sÚnullrˆ   úJSON_EXTRACT(%s, '$'))r   r_   r)   rp   r`   )r   rb   r.   re   rf   Úfuncr   r   r   r_     s    
zJSONExact.process_rhs)rJ   rK   rL   Zcan_use_none_as_rhsr_   rO   r   r   r   r   r‹     s   r‹   c                   @   s   e Zd ZdS )ÚJSONIContainsN©rJ   rK   rL   r   r   r   r   r�     s   r�   c                       sL   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
‡  ZS )r6   z->z#>c                    s   t ƒ j||Ž t|ƒ| _d S rA   )r   r   r7   Úkey_name)r   r’   r1   r   r   r   r   r   #  s    zKeyTransform.__init__c                 C   s^   | j g}| j}t|tƒr.| d|j ¡ |j}q| |¡\}}|jdkrTdd„ |D ƒ}|||fS )Nr   Úoraclec                 S   s   g | ]}|  d d¡‘qS )ú%z%%)Úreplace)r�   rs   r   r   r   rƒ   0  s     z/KeyTransform.preprocess_lhs.<locals>.<listcomp>)r’   rc   r5   r6   ÚinsertÚcompiler)   )r   rb   r.   rU   Úpreviousrc   rE   r   r   r   rm   '  s    

zKeyTransform.preprocess_lhsc                 C   s0   |   ||¡\}}}t|ƒ}d| t|ƒ|f fS )NzJSON_EXTRACT(%s, %%s)©rm   rY   r`   ©r   rb   r.   rc   rE   rU   Ú	json_pathr   r   r   rx   3  s    zKeyTransform.as_mysqlc                 C   s6   |   ||¡\}}}t|ƒ}d||fd  t|ƒd fS )Nz4COALESCE(JSON_QUERY(%s, '%s'), JSON_VALUE(%s, '%s'))é   r™   rš   r   r   r   ry   8  s    
ÿ
ýzKeyTransform.as_oraclec                 C   s„   |   ||¡\}}}t|ƒdkr>d|| jf }|t|ƒ|f fS zt| jƒ}W n tk
rf   | j}Y nX d|| jf t|ƒ|f fS )Nr   z(%s %s %%s))rm   rp   Úpostgres_nested_operatorr`   rS   r’   r   rj   )r   rb   r.   rc   rE   rU   rr   Úlookupr   r   r   r{   @  s    zKeyTransform.as_postgresqlc                 C   sT   |   ||¡\}}}t|ƒ}d dd„ |jjD ƒ¡}d||||f t|ƒ|f d fS )Nú,c                 S   s   g | ]}t |ƒ‘qS r   )Úrepr)r�   Údatatyper   r   r   rƒ   N  s    z*KeyTransform.as_sqlite.<locals>.<listcomp>z](CASE WHEN JSON_TYPE(%s, %%s) IN (%s) THEN JSON_TYPE(%s, %%s) ELSE JSON_EXTRACT(%s, %%s) END)é   )rm   rY   rT   ÚopsÚjsonfield_datatype_valuesr`   )r   rb   r.   rc   rE   rU   r›   Zdatatype_valuesr   r   r   r}   K  s    
ÿ
ýýzKeyTransform.as_sqlite)rJ   rK   rL   rj   r�   r   rm   rx   ry   r{   r}   rO   r   r   r   r   r6     s   r6   c                   @   s   e Zd ZdZdZdS )ÚKeyTextTransformz->>z#>>N)rJ   rK   rL   rj   r�   r   r   r   r   r¥   W  s   r¥   c                       s    e Zd ZdZ‡ fdd„Z‡  ZS )ÚKeyTransformTextLookupMixinzö
    Mixin for combining with a lookup expecting a text lhs from a JSONField
    key lookup. On PostgreSQL, make use of the ->> operator instead of casting
    key values to text and performing the lookup on the resulting
    representation.
    c                    s@   t |tƒstdƒ‚t|jf|jž|jŽ}tƒ j|f|ž|Ž d S )NzLTransform should be an instance of KeyTransform in order to use this lookup.)	r5   r6   rG   r¥   r’   Zsource_expressionsÚextrar   r   )r   rW   r1   r   Zkey_text_transformr   r   r   r   c  s    
ÿÿÿþz$KeyTransformTextLookupMixin.__init__)rJ   rK   rL   rŠ   r   rO   r   r   r   r   r¦   \  s   r¦   c                   @   s   e Zd Zdd„ Zdd„ ZdS )ÚKeyTransformIsNullc                 C   s\   t | jj| jjƒ ||¡\}}| js,||fS | j ||¡\}}}d||f t|ƒt|ƒ fS )Nz(NOT %s OR %s IS NULL))r~   rc   r’   ry   re   rm   r`   )r   rb   r.   rr   rE   rc   rd   rM   r   r   r   ry   r  s    þ ýzKeyTransformIsNull.as_oraclec                 C   s,   d}| j sd}t| jj| jjƒj|||d�S )NzJSON_TYPE(%s, %%s) IS NULLr|   ru   )re   r~   rc   r’   rg   )r   rb   r.   rq   r   r   r   r}   }  s    ýzKeyTransformIsNull.as_sqliteN)rJ   rK   rL   ry   r}   r   r   r   r   r¨   p  s   r¨   c                       s   e Zd Z‡ fdd„Z‡  ZS )ÚKeyTransformInc                    sª   t ƒ  ||||¡\}}t|dƒsŠ|jjsŠ|jdkrbt |¡}d}t|t	t
fƒrX|d }qŠ|d }n(|jdks†|jdkrŠ|d |jjkrŠd	}|jdkr¢|jr¢d
| }||fS )Nrg   r“   ú9%s(JSON_OBJECT('value' VALUE %%s FORMAT JSON), '$.value')Ú
JSON_QUERYÚ
JSON_VALUErˆ   Úsqliter   rŽ   zJSON_UNQUOTE(%s))r   Úresolve_expression_parameterÚhasattrr*   Úhas_native_json_fieldr)   r8   r9   r5   rn   r   r£   r¤   Zmysql_is_mariadb)r   rb   r.   rr   ÚparamrE   r;   r   r   r   r®   ‰  s2       ÿÿþ




ÿþz+KeyTransformIn.resolve_expression_parameter)rJ   rK   rL   r®   rO   r   r   r   r   r©   ˆ  s   r©   c                       s(   e Zd Z‡ fdd„Z‡ fdd„Z‡  ZS )ÚKeyTransformExactc                    sà   t | jtƒr ttj| ƒ ||¡S tƒ  ||¡\}}|jdkr’g }d}|D ]:}t 	|¡}t |t
tfƒrt| |d ¡ qH| |d ¡ qH|t|ƒ }nF|jdkrØg }|D ]&}||jjkrÀ| d¡ q¤| d¡ q¤|t|ƒ }||fS )Nr“   rª   r«   r¬   r­   rŒ   rŽ   )r5   re   r6   r   r   ÚExactr_   r)   r8   r9   rn   r   r+   r`   r£   r¤   )r   rb   r.   re   rf   r�   rr   r;   r   r   r   r_   £  s(    


zKeyTransformExact.process_rhsc                    sŒ   t ƒ  ||¡\}}|dgkr~t| jj| jjƒ}| ||¡\}}| j d¡| jdƒ}| ||¡\}	}
d||	f t|ƒt|
ƒ fS t ƒ  ||¡S )Nr�   ZisnullTz	%s AND %s)	r   r_   r~   rc   r’   ry   Z
get_lookuprg   r`   )r   rb   r.   re   rf   Zhas_key_exprZhas_key_sqlZhas_key_paramsZis_null_exprZis_null_sqlZis_null_paramsr   r   r   ry   »  s    

þzKeyTransformExact.as_oracle)rJ   rK   rL   r_   ry   rO   r   r   r   r   r²   ¢  s   r²   c                   @   s   e Zd ZdS )ÚKeyTransformIExactNr‘   r   r   r   r   r´   Ê  s   r´   c                   @   s   e Zd ZdS )ÚKeyTransformIContainsNr‘   r   r   r   r   rµ   Î  s   rµ   c                   @   s   e Zd ZdS )ÚKeyTransformStartsWithNr‘   r   r   r   r   r¶   Ò  s   r¶   c                   @   s   e Zd ZdS )ÚKeyTransformIStartsWithNr‘   r   r   r   r   r·   Ö  s   r·   c                   @   s   e Zd ZdS )ÚKeyTransformEndsWithNr‘   r   r   r   r   r¸   Ú  s   r¸   c                   @   s   e Zd ZdS )ÚKeyTransformIEndsWithNr‘   r   r   r   r   r¹   Þ  s   r¹   c                   @   s   e Zd ZdS )ÚKeyTransformRegexNr‘   r   r   r   r   rº   â  s   rº   c                   @   s   e Zd ZdS )ÚKeyTransformIRegexNr‘   r   r   r   r   r»   æ  s   r»   c                       s   e Zd Z‡ fdd„Z‡  ZS )ÚKeyTransformNumericLookupMixinc                    s0   t ƒ  ||¡\}}|jjs(dd„ |D ƒ}||fS )Nc                 S   s   g | ]}t  |¡‘qS r   )r8   r9   )r�   r;   r   r   r   rƒ   î  s     z>KeyTransformNumericLookupMixin.process_rhs.<locals>.<listcomp>)r   r_   r*   r°   r‰   r   r   r   r_   ë  s    z*KeyTransformNumericLookupMixin.process_rhs)rJ   rK   rL   r_   rO   r   r   r   r   r¼   ê  s   r¼   c                   @   s   e Zd ZdS )ÚKeyTransformLtNr‘   r   r   r   r   r½   ò  s   r½   c                   @   s   e Zd ZdS )ÚKeyTransformLteNr‘   r   r   r   r   r¾   ö  s   r¾   c                   @   s   e Zd ZdS )ÚKeyTransformGtNr‘   r   r   r   r   r¿   ú  s   r¿   c                   @   s   e Zd ZdS )ÚKeyTransformGteNr‘   r   r   r   r   rÀ   þ  s   rÀ   c                   @   s   e Zd Zdd„ Zdd„ ZdS )rC   c                 C   s
   || _ d S rA   )r’   )r   r’   r   r   r   r     s    zKeyTransformFactory.__init__c                 O   s   t | jf|ž|ŽS rA   )r6   r’   )r   r1   r   r   r   r   Ú__call__  s    zKeyTransformFactory.__call__N)rJ   rK   rL   r   rÁ   r   r   r   r   rC     s   rC   )T)Fr8   Zdjangor   Zdjango.corer   r   Z	django.dbr   r   r   Zdjango.db.modelsr   Zdjango.db.models.lookupsr	   r
   Zdjango.utils.translationr   rM   rR   r   Zmixinsr   Ú__all__r   rY   rZ   rk   rl   r~   r€   r…   r†   r³   r‹   Z	IContainsr�   Zregister_lookupr6   r¥   r¦   ZIsNullr¨   ZInr©   r²   ZIExactr´   rµ   Z
StartsWithr¶   ZIStartsWithr·   ZEndsWithr¸   Z	IEndsWithr¹   ÚRegexrº   ZIRegexr»   r¼   ZLessThanr½   ZLessThanOrEqualr¾   ZGreaterThanr¿   ZGreaterThanOrEqualrÀ   rC   r   r   r   r   Ú<module>   s|   l
4	

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
8(

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

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