U
    fd,                     @   s^   d dl Z d dlZd dlmZ d dlmZ d dlmZ d dlm	Z	m
Z
 dZdZG dd	 d	ZdS )
    N)import_module)ImproperlyConfigured)cached_property)import_stringmodule_has_submoduleappsmodelsc                   @   sp   e Zd ZdZdd Zdd Zedd Zedd	 Z	d
d Z
edd ZdddZdddZdd Zdd ZdS )	AppConfigz>Class representing a Django application and its configuration.c                 C   s   || _ || _d | _t| ds,|dd | _| j sDtd| j t| dsZ| j | _	t| dsp| 
|| _d | _d | _d S )Nlabel.   z4The app label '%s' is not a valid Python identifier.verbose_namepath)namemoduler   hasattr
rpartitionr
   isidentifierr   titler   _path_from_moduler   models_moduler   )selfapp_name
app_module r   6/tmp/pip-unpacked-wheel-_p7c4jiu/django/apps/config.py__init__   s    



zAppConfig.__init__c                 C   s   d| j j| jf S )Nz<%s: %s>)	__class____name__r
   r   r   r   r   __repr__:   s    zAppConfig.__repr__c                 C   s   ddl m} |jS )Nr   )settings)Zdjango.confr!   ZDEFAULT_AUTO_FIELD)r   r!   r   r   r   default_auto_field=   s    zAppConfig.default_auto_fieldc                 C   s   | j jtjk	S )N)r   r"   r	   r   r   r   r   !_is_default_auto_field_overriddenC   s    z+AppConfig._is_default_auto_field_overriddenc                 C   s   t t|dg }t|dkrLt|dd}|dk	r@tj|g}nt t|}t|dkrjtd||f n|sztd| |d S )z;Attempt to determine app's filesystem path from its module.__path__   __file__NzThe app module %r has multiple filesystem locations (%r); you must configure this app with an AppConfig subclass with a 'path' class attribute.zThe app module %r has no filesystem location, you must configure this app with an AppConfig subclass with a 'path' class attribute.r   )listgetattrlenosr   dirnamesetr   )r   r   pathsfilenamer   r   r   r   G   s&    zAppConfig._path_from_modulec                    s>  d}d}d}zt |}W n tk
r,   Y nX t|trd|tf }t |} fddt|tjD }t|dkr|d d }nXdd |D }t|dkrdd |D }td	|d
	|f nt|dkr|d d }|dkr }|}|dkrzt
|}W n tk
r   Y nX |dkr|dkr|d\}}	}
|r|
d  rt |} fddt|tjD }d||
f }|r|dd
	| 7 }t|nt | t|tstd| |dkrz
|j}W n" tk
r   td| Y nX zt |}W n, tk
r2   td||j|jf Y nX |||S )zU
        Factory that creates an app config from an entry in INSTALLED_APPS.
        N%s.%sc                    s6   g | ].\}}t | r| k	rt|d dr||fqS )defaultT)
issubclassr(   .0r   	candidateclsr   r   
<listcomp>~   s
   
z$AppConfig.create.<locals>.<listcomp>r%   r   c                 S   s$   g | ]\}}t |d dr||fqS )r0   F)r(   r2   r   r   r   r7      s   c                 S   s   g | ]\}}t |qS r   )repr)r3   r   _r   r   r   r7      s     z0%r declares more than one default AppConfig: %s.z, r   c                    s*   g | ]"\}}t | r| k	rt|qS r   )r1   r8   r2   r5   r   r   r7      s   
 z*Module '%s' does not contain a '%s' class.z Choices are: %s.z#'%s' isn't a subclass of AppConfig.z"'%s' must supply a name attribute.z7Cannot import '%s'. Check that '%s.%s.name' is correct.)r   	Exceptionr   APPS_MODULE_NAMEinspect
getmembersisclassr)   RuntimeErrorjoinr   r   isupperImportErrorr1   r	   r   r   AttributeError
__module____qualname__)r6   entryZapp_config_classr   r   Zmod_pathmodZapp_configs
candidatesr9   Zcls_namemsgr   r5   r   createc   s    

	






zAppConfig.createTc                 C   sV   |r| j   n
| j   z| j|  W S  tk
rP   td| j|f Y nX dS )z
        Return the model with the given case-insensitive model_name.

        Raise LookupError if no model exists with this name.
        z#App '%s' doesn't have a '%s' model.N)r   check_models_readyZcheck_apps_readyr   lowerKeyErrorLookupErrorr
   )r   Z
model_nameZrequire_readyr   r   r   	get_model   s    
zAppConfig.get_modelFc                 c   s@   | j   | j D ]&}|jjr&|s&q|jjr4|s4q|V  qdS )a  
        Return an iterable of models.

        By default, the following models aren't included:

        - auto-created models for many-to-many relations without
          an explicit intermediate table,
        - models that have been swapped out.

        Set the corresponding keyword argument to True to include such models.
        Keyword arguments aren't documented; they're a private API.
        N)r   rK   r   valuesZ_metaZauto_createdZswapped)r   Zinclude_auto_createdZinclude_swappedmodelr   r   r   
get_models   s    
zAppConfig.get_modelsc                 C   s8   | j j| j | _t| jtr4d| jtf }t|| _	d S )Nr/   )
r   Z
all_modelsr
   r   r   r   MODELS_MODULE_NAMEr   r   r   )r   Zmodels_module_namer   r   r   import_models  s    zAppConfig.import_modelsc                 C   s   dS )zT
        Override this method in subclasses to run code when Django starts.
        Nr   r   r   r   r   ready  s    zAppConfig.readyN)T)FF)r   rD   rE   __doc__r   r    r   r"   propertyr#   r   classmethodrJ   rO   rR   rT   rU   r   r   r   r   r	      s   *


|

	r	   )r<   r*   	importlibr   Zdjango.core.exceptionsr   Zdjango.utils.functionalr   Zdjango.utils.module_loadingr   r   r;   rS   r	   r   r   r   r   <module>   s   