U
    mf                     @   s(  d Z ddlmZ ddlmZmZmZmZ ddlm	Z	m
Z
 ddlmZmZ ddlmZmZ ddlmZ ddlmZmZmZmZ dd	lmZmZ dd
lmZ ddlmZ dZdZ d=ddZ!d>ddZ"dd Z#d?ddddZ$G dd dZ%G dd deZ&G dd deZ'G dd  d e'e&d!Z(e(dddddddddf
d"d#Z)G d$d% d%eZ*e(de*d&d'd'ddddd'dddddd'ddddd'fd(d)Z+G d*d+ d+e*Z,d@d,d-Z-e(e,dddd.d'ddddd'dddddd'ddddd'fd/d0Z.G d1d2 d2e
Z/G d3d4 d4Z0G d5d6 d6Z1G d7d8 d8e	Z2G d9d: d:e2Z3d;d< Z4dS )Az[
Helper functions for creating Form classes from Django models
and database field objects.
    )chain)NON_FIELD_ERRORS
FieldErrorImproperlyConfiguredValidationError)ChoiceFieldField)BaseFormDeclarativeFieldsMetaclass)BaseFormSetformset_factory)	ErrorList)HiddenInputMultipleHiddenInputRadioSelectSelectMultiple)capfirstget_text_listgettext)gettext_lazy)	ModelFormBaseModelFormmodel_to_dictfields_for_modelModelChoiceFieldModelMultipleChoiceField
ALL_FIELDSBaseModelFormSetmodelformset_factoryBaseInlineFormSetinlineformset_factorymodelform_factory__all__Nc           	      C   s   ddl m} |j}| j}g }|jD ]}|jr"t||js"|j|krDq"|dk	rX|j|krXq"|rh|j|krhq"|	 r| |j j
j| j| j| |jr||j| |j j
jkrq"t||jr|| q"||||j  q"|D ]}||||j  q|S )z
    Construct and return a model instance from the bound ``form``'s
    ``cleaned_data``, but do not save the returned instance to the database.
    r   )modelsN)Z	django.dbr$   _metacleaned_datafieldseditable
isinstance	AutoFieldnamehas_defaultfieldwidgetZvalue_omitted_from_datadatafiles
add_prefixgetempty_valuesZ	FileFieldappendsave_form_data)	forminstancer'   excluder$   optsr&   Zfile_field_listf r;   7/tmp/pip-unpacked-wheel-siwebuq3/django/forms/models.pyconstruct_instance-   sB    

  
r=   c                 C   sh   | j }i }t|j|j|jD ]F}t|dds.q|dk	rB|j|krBq|rR|j|krRq|| ||j< q|S )a  
    Return a dict containing the data in ``instance`` suitable for passing as
    a Form's ``initial`` keyword argument.

    ``fields`` is an optional list of field names. If provided, return only the
    named.

    ``exclude`` is an optional list of field names. If provided, exclude the
    named from the returned dict, even if they are listed in the ``fields``
    argument.
    r(   FN)r%   r   concrete_fieldsprivate_fieldsmany_to_manygetattrr+   Zvalue_from_object)r7   r'   r8   r9   r/   r:   r;   r;   r<   r   ]   s    r   c                 C   s   ddl m}m}m} t| dr|t| dr||  }|r||}t||sL|f |}|||ddM }| j|| jj	j
|| _dS )z=Apply limit_choices_to to the formfield's queryset if needed.r   )ExistsOuterRefQquerysetget_limit_choices_topkrG   N)django.db.modelsrB   rC   rD   hasattrrF   r)   rE   filtermodelZ_base_manager)	formfieldrB   rC   rD   limit_choices_toZcomplex_filterr;   r;   r<   #apply_limit_choices_to_to_formfieldv   s    

rO   Tapply_limit_choices_toc
                   s  i g | j }ddlm   fdd|jD }tt|j||jD ]}t|dds|dk	rB|j	|krBdksx|j	krBt
d|j	| jf qB|dk	r|j	|krqBr|j	krqBi }|r|j	|kr||j	 |d	< |tks|r|j	|krd
|d< |r|j	|kr||j	 |d< |r0|j	|kr0||j	 |d< |rP|j	|krP||j	 |d< |	rp|j	|	krp|	|j	 |d< |dkr|jf |}n t|stdn||f|}|r|
rt| ||j	< qB|j	 qB|rfdd|D S )a4  
    Return a dictionary containing form fields for the given model.

    ``fields`` is an optional list of field names. If provided, return only the
    named fields.

    ``exclude`` is an optional list of field names. If provided, exclude the
    named fields from the returned fields, even if they are listed in the
    ``fields`` argument.

    ``widgets`` is a dictionary of model field names mapped to a widget.

    ``formfield_callback`` is a callable that takes a model field and returns
    a form field.

    ``localized_fields`` is a list of names of fields which should be localized.

    ``labels`` is a dictionary of model field names mapped to a label.

    ``help_texts`` is a dictionary of model field names mapped to a help text.

    ``error_messages`` is a dictionary of model field names mapped to a
    dictionary of error messages.

    ``field_classes`` is a dictionary of model field names mapped to a form
    field class.

    ``apply_limit_choices_to`` is a boolean indicating if limit_choices_to
    should be applied to a field's queryset.
    r   )r   c                    s   g | ]}t | r|qS r;   )r)   .0r:   )
ModelFieldr;   r<   
<listcomp>   s    
 z$fields_for_model.<locals>.<listcomp>r(   FNzH'%s' cannot be specified for %s model form as it is a non-editable fieldr.   TZlocalizelabel	help_texterror_messages
form_classz1formfield_callback must be a function or callablec                    s,   i | ]$} r| kr|kr| |qS r;   )r2   rR   )r8   
field_dictignoredr;   r<   
<dictcomp>   s      z$fields_for_model.<locals>.<dictcomp>)r%   rI   r   r?   sortedr   r>   r@   rA   r+   r   __name__r   rM   callable	TypeErrorrO   r4   )rL   r'   r8   widgetsformfield_callbacklocalized_fieldslabels
help_textsrX   field_classesrQ   r9   Zsortable_private_fieldsr:   kwargsrM   r;   )rT   r8   rZ   r[   r<   r      sz    ,





r   c                   @   s   e Zd ZdddZdS )ModelFormOptionsNc                 C   s   t |dd | _t |dd | _t |dd | _t |dd | _t |dd | _t |dd | _t |dd | _t |dd | _t |d	d | _	d S )
NrL   r'   r8   ra   rc   rd   re   rX   rf   )
rA   rL   r'   r8   ra   rc   rd   re   rX   rf   )selfoptionsr;   r;   r<   __init__   s    zModelFormOptions.__init__)N)r^   
__module____qualname__rk   r;   r;   r;   r<   rh      s   rh   c                       s   e Zd Z fddZ  ZS )ModelFormMetaclassc                    s~  d }|D ]&}t |drt |jdr|jj} q0q|d|}t | |||}|tfkr\|S tt|dd  }|_	dD ]:}	t||	}
t
|
trv|
tkrvd|j|	|
d }t|qv|jrn|jd kr|jd krtd| |jtkrd |_t|j|j|j|j||j|j|j|j|jdd}d	d
 | D }||j}|r`d}|d||jjf }t|||j n|j}||_ |S )NMetarb   )r'   r8   rc   zP%(model)s.Meta.%(opt)s cannot be a string. Did you mean to type: ('%(value)s',)?)rL   optvaluez|Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is prohibited; form %s needs updating.FrP   c                 S   s   h | ]\}}|s|qS r;   r;   )rS   kvr;   r;   r<   	<setcomp>B  s      z-ModelFormMetaclass.__new__.<locals>.<setcomp>z&Unknown field(s) (%s) specified for %sz, )!rJ   ro   rb   popsuper__new__r   rh   rA   r%   r)   strr   r^   r`   rL   r'   r8   r   r   ra   rc   rd   re   rX   rf   items
differenceZdeclared_fieldsjoinr   updateZbase_fields)Zmcsr+   basesattrsZbase_formfield_callbackbrb   	new_classr9   rp   rq   msgr'   Znone_model_fieldsZmissing_fieldsmessage	__class__r;   r<   rw     sj    

	

zModelFormMetaclass.__new__)r^   rl   rm   rw   __classcell__r;   r;   r   r<   rn     s   rn   c                       st   e Zd Zdddddedddddf fdd	Zdd Zdd	 Zd
d Zdd Zdd Z	dd Z
dddZde_  ZS )r   Nid_%sFc                    s   | j }|jd krtd|	d kr0| | _i }n|	| _t|	|j|j}|d k	rX|| d| _t	 j
|||||||||
|d
 | j D ]}t| qd S )Nz'ModelForm has no model class specified.F)use_required_attributerenderer)r%   rL   
ValueErrorr7   r   r'   r8   r|   _validate_uniquerv   rk   valuesrO   )ri   r/   r0   auto_idprefixinitialerror_classZlabel_suffixZempty_permittedr7   r   r   r9   Zobject_datarM   r   r;   r<   rk   T  s2    


zBaseModelForm.__init__c                 C   s   t  }| jjjD ]}|j}|| jkr2||j q| jjrT|| jjkrT||j q| jjrv|| jjkrv||j q|| jkr||j q| j| }| j	|}|j
s|js||jkr||j q|S )z
        For backwards-compatibility, exclude several types of fields from model
        validation. See tickets #12507, #12521, #12553.
        )setr7   r%   r'   r+   addr8   _errorsr&   r2   blankrequiredr3   )ri   r8   r:   r-   Z
form_fieldZfield_valuer;   r;   r<   _get_validation_exclusions  s*    

	
z(BaseModelForm._get_validation_exclusionsc                 C   s   d| _ | jS )NT)r   r&   ri   r;   r;   r<   clean  s    zBaseModelForm.cleanc                 C   s   | j }t|dr|j}nt|i}| D ]p\}}|tkrT|jrTt|jkrT|jt }n|| jkr(| j| j}nq(|D ]$}t|trr|j	|krr||j	 |_
qrq(| d | d S )N
error_dict)r%   rJ   r   r   ry   rX   r'   r)   r   coder   Z	add_error)ri   errorsr9   r   r-   messagesrX   r   r;   r;   r<   _update_errors  s,    

zBaseModelForm._update_errorsc              
   C   s   | j }|  }| j D ]\}}t|tr|| qzt| | j|j|j	| _W n, t
k
r| } z| | W 5 d }~X Y nX z| jj|dd W n, t
k
r } z| | W 5 d }~X Y nX | jr|   d S )NF)r8   validate_unique)r%   r   r'   ry   r)   InlineForeignKeyFieldr   r=   r7   r8   r   r   Z
full_cleanr   r   )ri   r9   r8   r+   r-   er;   r;   r<   _post_clean  s(    	
   
zBaseModelForm._post_cleanc              
   C   sL   |   }z| jj|d W n, tk
rF } z| | W 5 d}~X Y nX dS )z
        Call the instance's validate_unique() method and update the form's
        validation errors if any were raised.
        )r8   N)r   r7   r   r   r   )ri   r8   r   r;   r;   r<   r     s
    zBaseModelForm.validate_uniquec                 C   s   | j }| jj}| jj}| jj}t|j|jD ]N}t|ds<q,|rL|j	|krLq,|r\|j	|kr\q,|j	|kr,|
| j||j	  q,dS )zS
        Save the many-to-many fields and generic relations for this form.
        r5   N)r&   r%   r8   r'   r7   r   r@   r?   rJ   r+   r5   )ri   r&   r8   r'   r9   r:   r;   r;   r<   	_save_m2m  s    

zBaseModelForm._save_m2mTc                 C   sP   | j r*td| jjj| jjjr dndf |rB| j  |   n| j| _	| jS )z
        Save this form's self.instance object if commit=True. Otherwise, add
        a save_m2m() method to the form which can be called after the instance
        is saved manually at a later time. Return the model instance.
        z8The %s could not be %s because the data didn't validate.createdchanged)
r   r   r7   r%   Zobject_name_stateaddingsaver   save_m2m)ri   commitr;   r;   r<   r     s    

zBaseModelForm.save)T)r^   rl   rm   r   rk   r   r   r   r   r   r   r   alters_datar   r;   r;   r   r<   r   S  s(   .-! 
r   c                   @   s   e Zd ZdS )r   N)r^   rl   rm   r;   r;   r;   r<   r   /  s   r   )	metaclassc                 C   s  d| i}|dk	r||d< |dk	r(||d< |dk	r8||d< |dk	rH||d< |dk	rX||d< |dk	rh||d< |	dk	rx|	|d	< |
dk	r|
|d
< t |dr|jfnd}td||}|rt||_| jd }||d}t|dddkrt|dddkrtdt|||f|S )al  
    Return a ModelForm containing form fields for the given model. You can
    optionally pass a `form` argument to use as a starting point for
    constructing the ModelForm.

    ``fields`` is an optional list of field names. If provided, include only
    the named fields in the returned fields. If omitted or '__all__', use all
    fields.

    ``exclude`` is an optional list of field names. If provided, exclude the
    named fields from the returned fields, even if they are listed in the
    ``fields`` argument.

    ``widgets`` is a dictionary of model field names mapped to a widget.

    ``localized_fields`` is a list of names of fields which should be localized.

    ``formfield_callback`` is a callable that takes a model field and returns
    a form field.

    ``labels`` is a dictionary of model field names mapped to a label.

    ``help_texts`` is a dictionary of model field names mapped to a help text.

    ``error_messages`` is a dictionary of model field names mapped to a
    dictionary of error messages.

    ``field_classes`` is a dictionary of model field names mapped to a form
    field class.
    rL   Nr'   r8   ra   rc   rd   re   rX   rf   ro   r;   ZForm)ro   rb   zZCalling modelform_factory without defining 'fields' or 'exclude' explicitly is prohibited.)rJ   ro   typestaticmethodrb   r^   rA   r   )rL   r6   r'   r8   rb   ra   rc   rd   re   rX   rf   r~   r}   ro   
class_nameZform_class_attrsr;   r;   r<   r"   3  s8    0


 r"   c                       s   e Zd ZdZdZdZe Zd+dd fddZ fdd	Z	d
d Z
dd Z fddZdd Zd,ddZd-ddZd.ddZd/ddZde_dd Zdd Zdd  Zd!d" Zd#d$ Zd0d%d&Zd1d'd(Z fd)d*Z  ZS )2r   zO
    A ``FormSet`` for editing a queryset and/or adding new objects to it.
    NFr   )r   c                   s,   || _ || _t jf ||||d| d S )N)r/   r0   r   r   )rE   initial_extrarv   rk   )ri   r/   r0   r   r   rE   r   rg   r   r;   r<   rk     s    zBaseModelFormSet.__init__c                    s   | j st|  S t  S )z=Return the number of forms that are required in this FormSet.)is_boundlenget_querysetrv   initial_form_countr   r   r;   r<   r     s    z#BaseModelFormSet.initial_form_countc                 C   s*   t | dsdd |  D | _| j|S )N_object_dictc                 S   s   i | ]}|j |qS r;   rH   rS   or;   r;   r<   r\     s      z5BaseModelFormSet._existing_object.<locals>.<dictcomp>)rJ   r   r   r2   )ri   rG   r;   r;   r<   _existing_object  s    
z!BaseModelFormSet._existing_objectc                 C   s   |j dk	r|j  }q |jS )z
        If the field is a related field, fetch the concrete field's (that
        is, the ultimate pointed-to field's) to_python.
        N)remote_fieldZget_related_field	to_pythonri   r-   r;   r;   r<   _get_to_python  s    
zBaseModelFormSet._get_to_pythonc                    s  ||   k }|r| jrd| || jjjjf }z| j| }W n tk
rR   Y qX | 	| jjj}z||}W n t
k
r   Y qX | ||d< q|  | |d< n6| jrz| j||     |d< W n tk
r   Y nX t j|f|}|rd|j| jjjj _|S )Nz%s-%sr7   r   T)r   r   r1   rL   r%   rG   r+   r/   KeyErrorr   r   r   r   r   
IndexErrorrv   _construct_formr'   r   )ri   irg   Zpk_requiredZpk_keyrG   r   r6   r   r;   r<   r     s0    z BaseModelFormSet._construct_formc                 C   sL   t | dsF| jd k	r| j}n| jj }|js@|| jjjj	}|| _
| j
S )N	_queryset)rJ   rE   rL   _default_managerr   ZorderedZorder_byr%   rG   r+   r   )ri   qsr;   r;   r<   r     s    

zBaseModelFormSet.get_querysetTc                 C   s   |j |dS )z8Save and return a new model instance for the given form.r   r   ri   r6   r   r;   r;   r<   save_new  s    zBaseModelFormSet.save_newc                 C   s   |j |dS )z>Save and return an existing model instance for the given form.r   r   )ri   r6   r7   r   r;   r;   r<   save_existing  s    zBaseModelFormSet.save_existingc                 C   s   |r|   dS )z#Deletes an existing model instance.N)delete)ri   objr   r;   r;   r<   delete_existing  s    z BaseModelFormSet.delete_existingc                    sD   |sg  _  fdd}| _ jr, |S  | | S dS )z
        Save model instances for every form, adding and changing instances
        as necessary, and return the list of instances.
        c                     s    j D ]} |   qd S N)saved_formsr   )r6   r   r;   r<   r     s    
z'BaseModelFormSet.save.<locals>.save_m2mN)r   r   	edit_onlysave_existing_objectssave_new_objects)ri   r   r   r;   r   r<   r     s    
zBaseModelFormSet.savec                 C   s   |    d S r   )r   r   r;   r;   r<   r     s    zBaseModelFormSet.cleanc                    s  t  }t  }jfddjD }|D ]4   } jj|dd\}}|| || q*g }|D ]\}}	t  }
|D ]  fdd|	D }tdd |D }|rzd |krz||
kr|	|	 j
 gjd jt< |	D ]}| jkr j|= q|
| qzqh|D ]}t  }
|\}}}}|D ]  jr. j| d k	r. j| d k	r.|d	kr j| }|j|j|jf}nt j| |f} j| f| }||
kr|| j
 gjd jt<  j|= |
| q.q|r t|d S )
Nc                    s    g | ]}|  r| kr|qS r;   )Zis_valid)rS   r6   )forms_to_deleter;   r<   rU   "  s    z4BaseModelFormSet.validate_unique.<locals>.<listcomp>T)r8   Zinclude_meta_constraintsc                 3   s0   | ](}| j kr|jkr|n j | V  qd S r   )r&   unique_fieldsrS   r-   )r6   ri   r;   r<   	<genexpr>7  s   
z3BaseModelFormSet.validate_unique.<locals>.<genexpr>c                 s   s6   | ].}t |d r| nt|tr*t|n|V  qdS )_get_pk_valN)rJ   r   r)   listtuple)rS   dr;   r;   r<   r   =  s   )r   date)r   deleted_formsZformsr   r7   Z_get_unique_checksr|   r   r4   get_unique_error_messager   get_form_errorr   r   r   r&   r   yearmonthdayrA   get_date_error_messager   )ri   Zall_unique_checksZall_date_checksZvalid_formsr8   Zunique_checksZdate_checksr   Zuclassunique_checkZ	seen_dataZrow_datar-   
date_checklookupZ
unique_forr   Z	date_datar/   r;   )r6   r   ri   r<   r     sx    








z BaseModelFormSet.validate_uniquec                 C   s>   t |dkr tdd|d i S tddt|tdi S d S )N   z0Please correct the duplicate data for %(field)s.r-   r   zFPlease correct the duplicate data for %(field)s, which must be unique.and)r   r   r   _ri   r   r;   r;   r<   r   z  s      z)BaseModelFormSet.get_unique_error_messagec                 C   s$   t d|d |d t|d d S )NzoPlease correct the duplicate data for %(field_name)s which must be unique for the %(lookup)s in %(date_field)s.      r   )
field_nameZ
date_fieldr   )r   rx   )ri   r   r;   r;   r<   r     s    
z'BaseModelFormSet.get_date_error_messagec                 C   s   t dS )Nz*Please correct the duplicate values below.r   r   r;   r;   r<   r     s    zBaseModelFormSet.get_form_errorc                 C   s   g | _ g | _| jsg S g }| j}| jD ]z}|j}|jd kr<q&||kr`| j| | j||d q&| r&| j ||j	f || j
|||d |s&| j| q&|S Nr   )Zchanged_objectsZdeleted_objectsZinitial_formsr   r7   rG   r4   r   has_changedZchanged_datar   r   )ri   r   Zsaved_instancesr   r6   r   r;   r;   r<   r     s&    

z&BaseModelFormSet.save_existing_objectsc                 C   sZ   g | _ | jD ]F}| sq| jr,| |r,q| j | j||d |s| j| q| j S r   )Znew_objectsZextra_formsr   
can_deleteZ_should_delete_formr4   r   r   )ri   r   r6   r;   r;   r<   r     s    
z!BaseModelFormSet.save_new_objectsc           	         s(  ddl m m}m} | jjj | _} fdd|sH|j|j	kr|j
rf|jjjr\dn|jj}n:z |dk	r|  | j}nd}W n tk
r   d}Y nX t|||fr|jjj }n| jj }||jjj}|jjr|jj| jjt}nt}t||d|d|j	| jj< t || dS )z0Add a hidden field for the object's primary key.r   )r*   
ForeignKeyOneToOneFieldc                    s6   | j  p4| jp4t|  p4| jo4| jjo4| jjjjS r   )r(   Zauto_createdr)   r   Zparent_linkrL   r%   rG   rH   r*   pk_is_not_editabler;   r<   r     s    z7BaseModelFormSet.add_fields.<locals>.pk_is_not_editableNF)r   r   r.   )rI   r*   r   r   rL   r%   rG   	_pk_fieldr+   r'   r   r7   r   r   r   r   r)   r   r   Zusingdbra   r2   r   r   rv   
add_fields)	ri   r6   indexr   r   rG   Zpk_valuer   r.   r   r   r<   r     s4    
   zBaseModelFormSet.add_fields)NNr   NN)T)T)T)T)T)T)r^   rl   rm   __doc__rL   r   r   r   rk   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r;   r;   r   r<   r     s<        	"



]


r   r   Fc                 C   s   t |dd}t |d|dkr4t |d|	dkr4tdt| |||	||
|||||d}t||||||||||||d}| |_||_|S )z8Return a FormSet class for the given Django model class.ro   Nr'   r8   z]Calling modelformset_factory without defining 'fields' or 'exclude' explicitly is prohibited.)
r6   r'   r8   rb   ra   rc   rd   re   rX   rf   )
extramin_nummax_num	can_orderr   validate_minvalidate_maxabsolute_maxcan_delete_extrar   )rA   r   r"   r   rL   r   )rL   r6   rb   formsetr   r   r   r   r'   r8   ra   r   rc   rd   re   rX   r   r   rf   r   r   r   r   metaFormSetr;   r;   r<   r     sL    r   c                       sl   e Zd ZdZd fdd	Z fddZ fdd	Zed
d Zd fdd	Z	 fddZ
 fddZ  ZS )r    z0A formset for child objects related to a parent.NFc           	         s   |d kr| j j | _n|| _|| _|d kr4| jj}| jjd k	rX|jf | j j| ji}n|	 }| j jh| _
t j||f||d| | jjjr| j j| jjjkrt| jjjtrt| jjj| jj_| jjj| j j d S )N)r   rE   )fkr   rL   r7   save_as_newr   rG   rK   r+   noner   rv   rk   r6   r%   r'   r)   r   r   r4   )	ri   r/   r0   r7   r  r   rE   rg   r   r   r;   r<   rk   8  s    
zBaseInlineFormSet.__init__c                    s   | j r
dS t  S )Nr   )r  rv   r   r   r   r;   r<   r   W  s    z$BaseInlineFormSet.initial_form_countc                    s   t  j|f|}| jrlt|jdd }|d k	r4d|j_d |j|| jj< d |j|| j	j< |d k	rl||j_| j
j}| j	jj| j	jjjjjkrt| j
| j	jj}t|d|}t|j
| j	 | |S )N_mutableTrG   )rv   r   r  rA   r/   r  r1   r   r+   r   r7   rG   r   r   rL   r%   setattrZget_attname)ri   r   rg   r6   ZmutableZfk_valuer   r;   r<   r   \  s    z!BaseInlineFormSet._construct_formc                 C   s   | j jj| jdddS )N)rL   + )r   r   Zget_accessor_namerL   replace)clsr;   r;   r<   get_default_prefixs  s    z$BaseInlineFormSet.get_default_prefixTc                    s$   t |j| jj| j t j||dS r   )r  r7   r   r+   rv   r   r   r   r;   r<   r   w  s    zBaseInlineFormSet.save_newc                    s   t  || | j| jkr,| jj}ddi}n(| jj}dt|j|dt| jj	i}| jj
j| jj
jjjjkr|| jj
j|d< | jjjr|dd k	r| jj|d }n
| jjj}| rt| j|jd  t| jf||j|< d S )Npk_fieldTrV   to_field)rv   r   r   r   r+   rA   r'   r2   r   Zverbose_namer   r   rL   r%   rG   r7   r   r   	get_fieldr,   r  Zattnamer   )ri   r6   r   r+   rg   r  r   r;   r<   r   ~  s*    
 
  
	

zBaseInlineFormSet.add_fieldsc                    s    fdd|D }t  |S )Nc                    s   g | ]}| j jkr|qS r;   )r   r+   r   r   r;   r<   rU     s      z>BaseInlineFormSet.get_unique_error_message.<locals>.<listcomp>)rv   r   r   r   r   r<   r     s    z*BaseInlineFormSet.get_unique_error_message)NNNFNN)T)r^   rl   rm   r   rk   r   r   classmethodr	  r   r   r   r   r;   r;   r   r<   r    5  s         
!r    c                    s@  ddl m  |j}rfdd|jD }t|dkr|d }j t| r|jjjj	rn|jjjj
ks|jjjj	s|jjkr|jjkrtdjjf n|std|jjf nzj  fdd|jD }t|dkr|d }nB|s$|r
d	S td
|jjjjf ntd|jjjjf |S )aD  
    Find and return the ForeignKey from model to parent if there is one
    (return None if can_fail is True and no such field exists). If fk_name is
    provided, assume it is the name of the ForeignKey field. Unless can_fail is
    True, raise an exception if there isn't a ForeignKey from model to
    parent_model.
    r   )r   c                    s   g | ]}|j  kr|qS r;   )r+   rR   fk_namer;   r<   rU     s     
 z$_get_foreign_key.<locals>.<listcomp>r   z)fk_name '%s' is not a ForeignKey to '%s'.z'%s' has no field named '%s'.c                    sN   g | ]F}t | r|jjksF|jjksF|jjjjr|jjjjkr|qS r;   )r)   r   rL   r%   proxyproxy_for_modelrR   )r   parent_listparent_modelr;   r<   rU     s   
Nz'%s' has no ForeignKey to '%s'.zR'%s' has more than one ForeignKey to '%s'. You must specify a 'fk_name' attribute.)rI   r   r%   r'   r   Zget_parent_listr)   r   rL   r  r  r   rV   )r  rL   r  Zcan_failr9   Zfks_to_parentr   r;   )r   r  r  r  r<   _get_foreign_key  sh    	

	






r  r   c                 C   s`   t | ||d}|jrd}
|||||	|||||
||||||||||||d}t|f|}||_|S )z
    Return an ``InlineFormSet`` for the given kwargs.

    ``fk_name`` must be provided if ``model`` has more than one ``ForeignKey``
    to ``parent_model``.
    r  r   )r6   rb   r   r   r   r   r'   r8   r   r   ra   r   r   rc   rd   re   rX   rf   r   r   r   r   )r  uniquer   r   )r  rL   r6   r   r  r'   r8   r   r   r   r   rb   ra   r   rc   rd   re   rX   r   r   rf   r   r   r   r   r   rg   r   r;   r;   r<   r!     s:    !r!   c                       sH   e Zd ZdZeZdediZddd fdd
Zd	d
 Z	dd Z
  ZS )r   zw
    A basic integer field that deals with validating the given value to a
    given parent instance in an inline.
    invalid_choicez3The inline value did not match the parent instance.FN)r
  r  c                   s\   || _ || _|| _| j d k	rB| jr6t| j | j|d< n| j j|d< d|d< t j|| d S )Nr   Fr   )parent_instancer
  r  rA   rG   rv   rk   )ri   r  r
  r  argsrg   r   r;   r<   rk   C  s    
zInlineForeignKeyField.__init__c                 C   s`   || j kr| jrd S | jS | jr0t| j| j}n| jj}t|t|krZt| jd dd| jS )Nr  r   )	r3   r
  r  r  rA   rG   rx   r   rX   )ri   rq   origr;   r;   r<   r   O  s    
 zInlineForeignKeyField.cleanc                 C   s   dS )NFr;   )ri   r   r/   r;   r;   r<   r   `  s    z!InlineForeignKeyField.has_changed)r^   rl   rm   r   r   r.   r   default_error_messagesrk   r   r   r   r;   r;   r   r<   r   8  s    r   c                   @   s,   e Zd Zdd Zdd Zdd Zdd Zd	S )
ModelChoiceIteratorValuec                 C   s   || _ || _d S r   )rq   r7   )ri   rq   r7   r;   r;   r<   rk   e  s    z!ModelChoiceIteratorValue.__init__c                 C   s
   t | jS r   )rx   rq   r   r;   r;   r<   __str__i  s    z ModelChoiceIteratorValue.__str__c                 C   s
   t | jS r   )hashrq   r   r;   r;   r<   __hash__l  s    z!ModelChoiceIteratorValue.__hash__c                 C   s   t |tr|j}| j|kS r   )r)   r  rq   )ri   otherr;   r;   r<   __eq__o  s    
zModelChoiceIteratorValue.__eq__N)r^   rl   rm   rk   r  r  r!  r;   r;   r;   r<   r  d  s   r  c                   @   s4   e Zd Zdd Zdd Zdd Zdd Zd	d
 ZdS )ModelChoiceIteratorc                 C   s   || _ |j| _d S r   )r-   rE   r   r;   r;   r<   rk   v  s    zModelChoiceIterator.__init__c                 c   sH   | j jd k	rd| j jfV  | j}|js.| }|D ]}| |V  q2d S )Nr  )r-   empty_labelrE   Z_prefetch_related_lookupsiteratorchoice)ri   rE   r   r;   r;   r<   __iter__z  s    zModelChoiceIterator.__iter__c                 C   s   | j  | jjd k	rdnd S )Nr   r   )rE   countr-   r#  r   r;   r;   r<   __len__  s    zModelChoiceIterator.__len__c                 C   s   | j jd k	p| j S r   )r-   r#  rE   existsr   r;   r;   r<   __bool__  s    zModelChoiceIterator.__bool__c                 C   s   t | j||| j|fS r   )r  r-   prepare_valuelabel_from_instanceri   r   r;   r;   r<   r%    s    
zModelChoiceIterator.choiceN)r^   rl   rm   rk   r&  r(  r*  r%  r;   r;   r;   r<   r"  u  s
   
r"  c                
       s   e Zd ZdZdediZeZdddddddddd		d
dZdd Z	 fddZ
dd Zdd ZeeeZdd Zdd ZeeejZ fddZdd Zdd Zdd Z  ZS ) r   z1A ChoiceField whose choices are a model QuerySet.r  zGSelect a valid choice. That choice is not one of the available choices.z	---------TNr  F)	r#  r   r.   rV   r   rW   to_field_namerN   r   c       	         K   s^   t j| f|||||d| |r*|d k	s:t| jtrB|
sBd | _n|| _|| _|	| _|| _d S )N)r   r.   rV   r   rW   )	r   rk   r)   r.   r   r#  rE   rN   r.  )ri   rE   r#  r   r.   rV   r   rW   r.  rN   r   rg   r;   r;   r<   rk     s*    	
zModelChoiceField.__init__c                 C   s   t | jr|  S | jS )z
        Return ``limit_choices_to`` for this form field.

        If it is a callable, invoke it and return the result.
        )r_   rN   r   r;   r;   r<   rF     s    
z%ModelChoiceField.get_limit_choices_toc                    s*   t t| |}| jd k	r&| j |_|S r   )rv   r   __deepcopy__rE   all)ri   memoresultr   r;   r<   r/    s    
zModelChoiceField.__deepcopy__c                 C   s   | j S r   )r   r   r;   r;   r<   _get_queryset  s    zModelChoiceField._get_querysetc                 C   s$   |d krd n|  | _| j| j_d S r   )r0  r   choicesr.   )ri   rE   r;   r;   r<   _set_queryset  s    zModelChoiceField._set_querysetc                 C   s   t |S )z
        Convert objects into strings and generate the labels for the choices
        presented by this object. Subclasses can override this method to
        customize the display of the choices.
        rx   r-  r;   r;   r<   r,    s    z$ModelChoiceField.label_from_instancec                 C   s   t | dr| jS | | S )N_choices)rJ   r7  r$  r   r;   r;   r<   _get_choices  s    
	zModelChoiceField._get_choicesc                    s.   t |dr"| jr|| jS |jS t |S Nr%   )rJ   r.  Zserializable_valuerG   rv   r+  ri   rq   r   r;   r<   r+    s
    
zModelChoiceField.prepare_valuec              
   C   s   || j krd S z8| jpd}t|| jjr2t||}| jjf ||i}W n8 tt| jjj	fk
r~   t
| jd dd|idY nX |S )NrG   r  rq   r   params)r3   r.  r)   rE   rL   rA   r2   r   r`   ZDoesNotExistr   rX   )ri   rq   keyr;   r;   r<   r     s    


zModelChoiceField.to_pythonc                 C   s   t | |S r   )r   validater:  r;   r;   r<   r>    s    zModelChoiceField.validatec                 C   s@   | j r
dS |d k	r|nd}|d k	r&|nd}t| |t|kS )NFr  )disabledrx   r+  )ri   r   r/   initial_valueZ
data_valuer;   r;   r<   r     s
    zModelChoiceField.has_changed)r^   rl   rm   r   r   r  r"  r$  rk   rF   r/  r3  r5  propertyrE   r,  r8  r   Z_set_choicesr4  r+  r   r>  r   r   r;   r;   r   r<   r     s:    $

r   c                       sl   e Zd ZdZeZeZedededdZ	 fddZ
dd	 Zd
d Zdd Z fddZdd Z  ZS )r   z9A MultipleChoiceField whose choices are a model QuerySet.zEnter a list of values.zESelect a valid choice. %(value)s is not one of the available choices.u"   “%(pk)s” is not a valid value.)invalid_listr  invalid_pk_valuec                    s   t  j|fdd i| d S )Nr#  )rv   rk   )ri   rE   rg   r   r;   r<   rk   )  s    z!ModelMultipleChoiceField.__init__c                 C   s   |sg S t | |S r   )r   _check_valuesr:  r;   r;   r<   r   ,  s    z"ModelMultipleChoiceField.to_pythonc                 C   st   |  |}| jr(|s(t| jd ddn| js<|s<| j S t|ttfs\t| jd dd| 	|}| 
| |S )Nr   r  rB  )r+  r   r   rX   rE   r  r)   r   r   rD  Zrun_validators)ri   rq   r   r;   r;   r<   r   1  s    





zModelMultipleChoiceField.cleanc              
      s   | j pd zt|}W n& tk
r<   t| jd ddY nX |D ]L}z| jjf  |i W qB ttfk
r   t| jd dd|idY qBX qB| jjf d  |i} fdd|D }|D ](}t||krt| jd	 d	d
|idq|S )z
        Given a list of possible PK values, return a QuerySet of the
        corresponding objects. Raise a ValidationError if a given value is
        invalid (not a valid PK, not in the queryset, etc.)
        rG   rB  r  rC  r;  z%s__inc                    s   h | ]}t t| qS r;   )rx   rA   r   r=  r;   r<   rt   ]  s     z9ModelMultipleChoiceField._check_values.<locals>.<setcomp>r  rq   )	r.  	frozensetr`   r   rX   rE   rK   r   rx   )ri   rq   rG   r   Zpksvalr;   rE  r<   rD  B  s6    
z&ModelMultipleChoiceField._check_valuesc                    sD   t |dr8t|ts8t |ds8t j  fdd|D S t |S )Nr&  r%   c                    s   g | ]} |qS r;   r;   )rS   rs   r+  r;   r<   rU   n  s     z:ModelMultipleChoiceField.prepare_value.<locals>.<listcomp>)rJ   r)   rx   rv   r+  r:  r   rH  r<   r+  g  s    z&ModelMultipleChoiceField.prepare_valuec                 C   s`   | j r
dS |d krg }|d kr"g }t|t|kr6dS dd | |D }dd |D }||kS )NFTc                 S   s   h | ]}t |qS r;   r6  rS   rq   r;   r;   r<   rt   z  s     z7ModelMultipleChoiceField.has_changed.<locals>.<setcomp>c                 S   s   h | ]}t |qS r;   r6  rI  r;   r;   r<   rt   {  s     )r?  r   r+  )ri   r   r/   Zinitial_setZdata_setr;   r;   r<   r   q  s    z$ModelMultipleChoiceField.has_changed)r^   rl   rm   r   r   r.   r   Zhidden_widgetr   r  rk   r   r   rD  r+  r   r   r;   r;   r   r<   r     s   %
r   c                 C   s"   t | do | jjd k	p | jjd k	S r9  )rJ   r%   r'   r8   )rY   r;   r;   r<   modelform_defines_fields  s    
rJ  )NN)NN)	NNNNNNNNN)NF)5r   	itertoolsr   Zdjango.core.exceptionsr   r   r   r   Zdjango.forms.fieldsr   r   Zdjango.forms.formsr	   r
   Zdjango.forms.formsetsr   r   Zdjango.forms.utilsr   Zdjango.forms.widgetsr   r   r   r   Zdjango.utils.textr   r   Zdjango.utils.translationr   r   r   r#   r   r=   r   rO   r   rh   rn   r   r   r"   r   r   r    r  r!   r   r  r"  r   r   rJ  r;   r;   r;   r<   <module>   s   
0
         nQ ]
[  d
Go
R
E, 	c