
v^Z                 @   s   d  d l  m Z d  d l m Z d  d l m Z d  d l m Z d  d l m	 Z	 d  d l
 m Z d  d l m Z d  d l m Z d	 d
 l m Z Gd d   d e  Z Gd d   d  Z d d d  Z d d   Z d d   Z d d   Z d S)    )import_module)walk_packages)apps)settings)TemplateDoesNotExist)make_context)Engine)InvalidTemplateLibrary   )
BaseEnginec                   sL   e  Z d  Z d Z   f d d   Z d d   Z d d   Z d d	   Z   S)
DjangoTemplatesZ	templatesc                s   | j    } | j d  j    } | j d d  | j d t j  | j d t j  | j d i   } |  j |  | d <t   j	 |  t
 |  j |  j |  |  _ d  S)NOPTIONS
autoescapeTdebugZfile_charset	libraries)copypop
setdefaultr   DEBUGZFILE_CHARSETgetget_templatetag_librariessuper__init__r   dirsZapp_dirsengine)selfparamsoptionsr   )	__class__ A/tmp/pip-build-8lau8j11/django/django/template/backends/django.pyr      s    zDjangoTemplates.__init__c             C   s   t  |  j j |  |   S)N)Templater   from_string)r   Ztemplate_coder   r   r    r"      s    zDjangoTemplates.from_stringc             C   sV   y t  |  j j |  |   SWn2 t k
 rQ } z t | |   WYd  d  } ~ Xn Xd  S)N)r!   r   get_templater   reraise)r   Ztemplate_nameexcr   r   r    r#       s    zDjangoTemplates.get_templatec             C   s   t    } | j |  | S)z
        Return a collation of template tag libraries from installed
        applications and the supplied custom_libraries argument.
        )get_installed_librariesupdate)r   Zcustom_librariesr   r   r   r    r   &   s    	z)DjangoTemplates.get_templatetag_libraries)__name__
__module____qualname__Zapp_dirnamer   r"   r#   r   r   r   )r   r    r      s
   r   c               @   s@   e  Z d  Z d d   Z e d d    Z d d d d  Z d S)r!   c             C   s   | |  _  | |  _ d  S)N)templatebackend)r   r+   r,   r   r   r    r   2   s    	zTemplate.__init__c             C   s
   |  j  j S)N)r+   origin)r   r   r   r    r-   6   s    zTemplate.originNc             C   sn   t  | | d |  j j j } y |  j j |  SWn5 t k
 ri } z t | |  j  WYd  d  } ~ Xn Xd  S)Nr   )r   r,   r   r   r+   renderr   r$   )r   contextrequestr%   r   r   r    r.   :   s
    zTemplate.render)r(   r)   r*   r   propertyr-   r.   r   r   r   r    r!   0   s   r!   Nc             C   sX   | p |  j  } |  j |  j d |  j d | d |  j  } t |  d  rT |  j | _ | S)z
    Create a new TemplateDoesNotExist. Preserve its declared attributes and
    template debug data but discard __traceback__, __context__, and __cause__
    to make this object suitable for keeping around (in a cache, for example).
    triedr,   chaintemplate_debug)r,   r   argsr2   r3   hasattrr4   )r%   r,   newr   r   r    copy_exceptionB   s
    *r8   c             C   s   t  |  |  } | |   d S)zT
    Reraise TemplateDoesNotExist while maintaining template debug information.
    N)r8   )r%   r,   r7   r   r   r    r$   O   s    r$   c              C   s   i  }  d g } | j  d d   t j   D  xz | D]r } y t |  } Wn t k
 rc w6 Yn Xt | d  r6 x2 t |  D]$ } | |  | t |  d d  <q Wq6 W|  S)a  
    Return the built-in template tag libraries and those from installed
    applications. Libraries are stored in a dictionary where keys are the
    individual module names, not the full module paths. Example:
    django.templatetags.i18n is stored as i18n.
    zdjango.templatetagsc             s   s   |  ] } d  | j  Vq d S)z%s.templatetagsN)name).0Z
app_configr   r   r    	<genexpr>a   s   z*get_installed_libraries.<locals>.<genexpr>__path__r
   N)extendr   Zget_app_configsr   ImportErrorr6   get_package_librarieslen)r   
candidates	candidatepkgr9   r   r   r    r&   W   s    		&r&   c             c   s   x t  |  j |  j d  D]t } y t | d  } Wn? t k
 ru } z t d | d | f   WYd d } ~ Xn Xt | d  r | d Vq Wd S)zZ
    Recursively yield template tag libraries defined in submodules of a
    package.
    .r
   zSInvalid template library specified. ImportError raised when trying to load '%s': %sNregister)r   r<   r(   r   r>   r	   r6   )rC   entrymoduleer   r   r    r?   r   s     'r?   )	importlibr   pkgutilr   Zdjango.appsr   Zdjango.confr   Zdjango.templater   Zdjango.template.contextr   Zdjango.template.enginer   Zdjango.template.libraryr	   baser   r   r!   r8   r$   r&   r?   r   r   r   r    <module>   s   "