B
    CVvgŒ   ã               @   s   d dl mZ d dlmZ d dlmZ d dlmZm	Z	m
Z
 d dlmZmZmZ G dd„ deƒZG dd	„ d	eeƒZG d
d„ de
ƒZG dd„ deeƒZG dd„ de	eƒZG dd„ deeƒZG dd„ deeƒZG dd„ deeƒZG dd„ deeƒZG dd„ dƒZG dd„ deeƒZG dd„ deeƒZdS )é    )ÚImproperlyConfigured)Úmodels)ÚHttpResponseRedirect)ÚContextMixinÚTemplateResponseMixinÚView)ÚBaseDetailViewÚSingleObjectMixinÚ!SingleObjectTemplateResponseMixinc                   sr   e Zd ZdZi ZdZdZdZdd„ Zdd„ Z	dd„ Z
dd	d
„Zdd„ Zdd„ Zdd„ Zdd„ Z‡ fdd„Z‡  ZS )Ú	FormMixinz5Provide a way to show and handle a form in a request.Nc             C   s
   | j  ¡ S )z6Return the initial data to use for forms on this view.)ÚinitialÚcopy)Úself© r   ú=/tmp/pip-install-o3oxmrkh/Django/django/views/generic/edit.pyÚget_initial   s    zFormMixin.get_initialc             C   s   | j S )z#Return the prefix to use for forms.)Úprefix)r   r   r   r   Ú
get_prefix   s    zFormMixin.get_prefixc             C   s   | j S )zReturn the form class to use.)Ú
form_class)r   r   r   r   Úget_form_class   s    zFormMixin.get_form_classc             C   s   |dkr|   ¡ }|f |  ¡ ŽS )z7Return an instance of the form to be used in this view.N)r   Úget_form_kwargs)r   r   r   r   r   Úget_form   s    zFormMixin.get_formc             C   s:   |   ¡ |  ¡ dœ}| jjdkr6| | jj| jjdœ¡ |S )z8Return the keyword arguments for instantiating the form.)r   r   )ÚPOSTÚPUT)ÚdataÚfiles)r   r   ÚrequestÚmethodÚupdater   ZFILES)r   Úkwargsr   r   r   r   #   s    zFormMixin.get_form_kwargsc             C   s   | j stdƒ‚t| j ƒS )z<Return the URL to redirect to after processing a valid form.z-No URL to redirect to. Provide a success_url.)Úsuccess_urlr   Ústr)r   r   r   r   Úget_success_url1   s    zFormMixin.get_success_urlc             C   s   t |  ¡ ƒS )z3If the form is valid, redirect to the supplied URL.)r   r"   )r   Úformr   r   r   Ú
form_valid7   s    zFormMixin.form_validc             C   s   |   | j|d�¡S )z0If the form is invalid, render the invalid form.)r#   )Úrender_to_responseÚget_context_data)r   r#   r   r   r   Úform_invalid;   s    zFormMixin.form_invalidc                s"   d|kr|   ¡ |d< tƒ jf |ŽS )z&Insert the form into the context dict.r#   )r   Úsuperr&   )r   r   )Ú	__class__r   r   r&   ?   s    zFormMixin.get_context_data)N)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   r   r    r   r   r   r   r   r   r"   r$   r'   r&   Ú__classcell__r   r   )r)   r   r   
   s   
r   c                   s@   e Zd ZdZdZdd„ Z‡ fdd„Zdd„ Z‡ fd	d
„Z‡  Z	S )ÚModelFormMixinz:Provide a way to show and handle a ModelForm in a request.Nc             C   sˆ   | j dk	r| jrtdƒ‚| jr$| jS | jdk	r6| j}n$t| ddƒdk	rP| jj}n
|  ¡ j}| j dkrttd| jj ƒ‚t	j
|| j d�S dS )z*Return the form class to use in this view.Nz;Specifying both 'fields' and 'form_class' is not permitted.ÚobjectzUUsing ModelFormMixin (base class of %s) without the 'fields' attribute is prohibited.)Úfields)r1   r   r   ÚmodelÚgetattrr0   r)   Zget_querysetr*   Úmodel_formsZmodelform_factory)r   r2   r   r   r   r   J   s    



zModelFormMixin.get_form_classc                s(   t ƒ  ¡ }t| dƒr$| d| ji¡ |S )z8Return the keyword arguments for instantiating the form.r0   Úinstance)r(   r   Úhasattrr   r0   )r   r   )r)   r   r   r   g   s    

zModelFormMixin.get_form_kwargsc             C   sJ   | j r| j jf | jjŽ}n,y| j ¡ }W n tk
rD   tdƒ‚Y nX |S )z<Return the URL to redirect to after processing a valid form.z^No URL to redirect to.  Either provide a url or define a get_absolute_url method on the Model.)r    Úformatr0   Ú__dict__Zget_absolute_urlÚAttributeErrorr   )r   Úurlr   r   r   r"   n   s    zModelFormMixin.get_success_urlc                s   |  ¡ | _tƒ  |¡S )z0If the form is valid, save the associated model.)Úsaver0   r(   r$   )r   r#   )r)   r   r   r$   {   s    
zModelFormMixin.form_valid)
r*   r+   r,   r-   r1   r   r   r"   r$   r.   r   r   )r)   r   r/   F   s   r/   c               @   s(   e Zd ZdZdd„ Zdd„ Zdd„ ZdS )	ÚProcessFormViewz.Render a form on GET and processes it on POST.c             O   s   |   |  ¡ ¡S )z=Handle GET requests: instantiate a blank version of the form.)r%   r&   )r   r   Úargsr   r   r   r   Úgetƒ   s    zProcessFormView.getc             O   s(   |   ¡ }| ¡ r|  |¡S |  |¡S dS )zˆ
        Handle POST requests: instantiate a form instance with the passed
        POST variables and then check if it's valid.
        N)r   Zis_validr$   r'   )r   r   r=   r   r#   r   r   r   Úpost‡   s    
zProcessFormView.postc             O   s   | j ||ŽS )N)r?   )r   r=   r   r   r   r   Úput”   s    zProcessFormView.putN)r*   r+   r,   r-   r>   r?   r@   r   r   r   r   r<   �   s   r<   c               @   s   e Zd ZdZdS )ÚBaseFormViewz"A base view for displaying a form.N)r*   r+   r,   r-   r   r   r   r   rA   ˜   s   rA   c               @   s   e Zd ZdZdS )ÚFormViewz?A view for displaying a form and rendering a template response.N)r*   r+   r,   r-   r   r   r   r   rB   œ   s   rB   c                   s,   e Zd ZdZ‡ fdd„Z‡ fdd„Z‡  ZS )ÚBaseCreateViewz„
    Base view for creating a new object instance.

    Using this base class requires subclassing to provide a response mixin.
    c                s   d | _ tƒ j|f|ž|ŽS )N)r0   r(   r>   )r   r   r=   r   )r)   r   r   r>   ¦   s    zBaseCreateView.getc                s   d | _ tƒ j|f|ž|ŽS )N)r0   r(   r?   )r   r   r=   r   )r)   r   r   r?   ª   s    zBaseCreateView.post)r*   r+   r,   r-   r>   r?   r.   r   r   )r)   r   rC       s   rC   c               @   s   e Zd ZdZdZdS )Ú
CreateViewzQ
    View for creating a new object, with a response rendered by a template.
    Ú_formN)r*   r+   r,   r-   Útemplate_name_suffixr   r   r   r   rD   ¯   s   rD   c                   s,   e Zd ZdZ‡ fdd„Z‡ fdd„Z‡  ZS )ÚBaseUpdateViewz�
    Base view for updating an existing object.

    Using this base class requires subclassing to provide a response mixin.
    c                s   |   ¡ | _tƒ j|f|ž|ŽS )N)Ú
get_objectr0   r(   r>   )r   r   r=   r   )r)   r   r   r>   ¼   s    
zBaseUpdateView.getc                s   |   ¡ | _tƒ j|f|ž|ŽS )N)rH   r0   r(   r?   )r   r   r=   r   )r)   r   r   r?   À   s    
zBaseUpdateView.post)r*   r+   r,   r-   r>   r?   r.   r   r   )r)   r   rG   ¶   s   rG   c               @   s   e Zd ZdZdZdS )Ú
UpdateViewzDView for updating an object, with a response rendered by a template.rE   N)r*   r+   r,   r-   rF   r   r   r   r   rI   Å   s   rI   c               @   s,   e Zd ZdZdZdd„ Zdd„ Zdd„ ZdS )	ÚDeletionMixinz&Provide the ability to delete objects.Nc             O   s$   |   ¡ | _|  ¡ }| j ¡  t|ƒS )zn
        Call the delete() method on the fetched object and then redirect to the
        success URL.
        )rH   r0   r"   Údeleter   )r   r   r=   r   r    r   r   r   rK   Î   s    

zDeletionMixin.deletec             O   s   | j |f|ž|ŽS )N)rK   )r   r   r=   r   r   r   r   r?   Ù   s    zDeletionMixin.postc             C   s$   | j r| j jf | jjŽS tdƒ‚d S )Nz-No URL to redirect to. Provide a success_url.)r    r7   r0   r8   r   )r   r   r   r   r"   Ü   s    zDeletionMixin.get_success_url)r*   r+   r,   r-   r    rK   r?   r"   r   r   r   r   rJ   Ê   s
   rJ   c               @   s   e Zd ZdZdS )ÚBaseDeleteViewzx
    Base view for deleting an object.

    Using this base class requires subclassing to provide a response mixin.
    N)r*   r+   r,   r-   r   r   r   r   rL   ä   s   rL   c               @   s   e Zd ZdZdZdS )Ú
DeleteViewzs
    View for deleting an object retrieved with self.get_object(), with a
    response rendered by a template.
    Z_confirm_deleteN)r*   r+   r,   r-   rF   r   r   r   r   rM   ì   s   rM   N)Zdjango.core.exceptionsr   Zdjango.formsr   r4   Zdjango.httpr   Zdjango.views.generic.baser   r   r   Zdjango.views.generic.detailr   r	   r
   r   r/   r<   rA   rB   rC   rD   rG   rI   rJ   rL   rM   r   r   r   r   Ú<module>   s    <;