o
    ˷e                     @   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 )@z[
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|vr"q|dur,|j|vr,q|r4|j|v r4q|	 rX| |j j
j| j| j| |jrX||j| |j j
jv rXqt||jrd|| q||||j  q|D ]}||||j  qp|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)	django.dbr$   _metacleaned_datafieldseditable
isinstance	AutoFieldnamehas_defaultfieldwidgetvalue_omitted_from_datadatafiles
add_prefixgetempty_values	FileFieldappendsave_form_data)	forminstancer(   excluder$   optsr'   file_field_listf r?   J/var/www/ideatree/venv/lib/python3.10/site-packages/django/forms/models.pyconstruct_instance-   s:   


rA   c                 C   sh   | j }i }t|j|j|jD ]#}t|ddsq|dur!|j|vr!q|r)|j|v r)q|| ||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,   value_from_object)r:   r(   r;   r<   r1   r>   r?   r?   r@   r   ]   s   r   c                 C   s   ddl m}m}m} t| drBt| drD|  }|rF|}t||s(|di |}|||ddM }| j|| jj	j
|| _dS dS dS dS )	z=Apply limit_choices_to to the formfield's queryset if needed.r   )ExistsOuterRefQquerysetget_limit_choices_topkrL   Nr?   )django.db.modelsrG   rH   rI   hasattrrK   r*   rJ   filtermodel_base_manager)	formfieldrG   rH   rI   limit_choices_tocomplex_filterr?   r?   r@   #apply_limit_choices_to_to_formfieldv   s   

rV   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sF|durE|j	|v rEdu s;|j	vrEt
d|j	| jf q!|durP|j	|vrPq!rX|j	v rXq!i }|rh|j	|v rh||j	 |d	< |tkss|rw|j	|v rwd
|d< |r|j	|v r||j	 |d< |r|j	|v r||j	 |d< |r|j	|v r||j	 |d< |	r|j	|	v r|	|j	 |d< |du r|jdi |}nt|std||fi |}|r|
rt| ||j	< q!|j	 q!|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$fields_for_model.<locals>.<listcomp>r)   FNzH'%s' cannot be specified for %s model form as it is a non-editable fieldr/   Tlocalizelabel	help_texterror_messages
form_classz1formfield_callback must be a function or callablec                    s,   i | ]} r
| vr|vr| |qS r?   )r4   rY   )r;   
field_dictignoredr?   r@   
<dictcomp>   s    
z$fields_for_model.<locals>.<dictcomp>r?   )r&   rN   r   rC   sortedr   rB   rD   rE   r,   r   __name__r   rS   callable	TypeErrorrV   r7   )rQ   r(   r;   widgetsformfield_callbacklocalized_fieldslabels
help_textsr`   field_classesrX   r<   sortable_private_fieldsr>   kwargsrS   r?   )r[   r;   rb   rc   r@   r      sn   ,



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 )
NrQ   r(   r;   ri   rk   rl   rm   r`   rn   )
rE   rQ   r(   r;   ri   rk   rl   rm   r`   rn   )selfoptionsr?   r?   r@   __init__   s   zModelFormOptions.__init__N)rf   
__module____qualname__rt   r?   r?   r?   r@   rq      s    rq   c                       s   e Zd Z fddZ  ZS )ModelFormMetaclassc                    sz  d }|D ]}t |drt |jdr|jj} nq|d|}t | |||}|tfkr.|S tt|dd  }|_	dD ]}	t||	}
t
|
trX|
tkrXd|j|	|
d }t|q;|jr|jd u rl|jd u rltd| |jtkrtd |_t|j|j|j|j||j|j|j|j|jdd}d	d
 | D }||j}|rd}|d||jjf }t|||j n|j}||_ |S )NMetarj   )r(   r;   rk   zP%(model)s.Meta.%(opt)s cannot be a string. Did you mean to type: ('%(value)s',)?)rQ   optvaluez|Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is prohibited; form %s needs updating.FrW   c                 S   s   h | ]\}}|s|qS r?   r?   )rZ   kvr?   r?   r@   	<setcomp>B  s    z-ModelFormMetaclass.__new__.<locals>.<setcomp>z&Unknown field(s) (%s) specified for %sz, )!rO   ry   rj   popsuper__new__r   rq   rE   r&   r*   strr   rf   rh   rQ   r(   r;   r   r   ri   rk   rl   rm   r`   rn   items
differencedeclared_fieldsjoinr   updatebase_fields)mcsr,   basesattrsbase_formfield_callbackbrj   	new_classr<   rz   r{   msgr(   none_model_fieldsmissing_fieldsmessage	__class__r?   r@   r     sn   

	
zModelFormMetaclass.__new__)rf   rv   rw   r   __classcell__r?   r?   r   r@   rx     s    rx   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 u rtd|	d u r| | _i }n|	| _t|	|j|j}|d ur,|| d| _t	 j
|||||||||
|d
 | j D ]}t| qDd S )Nz'ModelForm has no model class specified.F)use_required_attributerenderer)r&   rQ   
ValueErrorr:   r   r(   r;   r   _validate_uniquer   rt   valuesrV   )rr   r1   r2   auto_idprefixinitialerror_classlabel_suffixempty_permittedr:   r   r   r<   object_datarS   r   r?   r@   rt   T  s4   



zBaseModelForm.__init__c                 C   s   t  }| jjjD ][}|j}|| jvr||j q| jjr*|| jjvr*||j q| jjr;|| jjv r;||j q|| jv rG||j q| j| }| j	|}|j
sc|jsc||jv rc||j q|S )z
        For backwards-compatibility, exclude several types of fields from model
        validation. See tickets #12507, #12521, #12553.
        )setr:   r&   r(   r,   addr;   _errorsr'   r4   blankrequiredr5   )rr   r;   r>   r.   
form_fieldfield_valuer?   r?   r@   _get_validation_exclusions  s*   


	
z(BaseModelForm._get_validation_exclusionsc                 C   s   d| _ | jS )NT)r   r'   rr   r?   r?   r@   clean  s   zBaseModelForm.cleanc                 C   s   | j }t|dr|j}nt|i}| D ]8\}}|tkr*|jr*t|jv r*|jt }n|| jv r6| j| j}nq|D ]}t|trK|j	|v rK||j	 |_
q9q| d | d S )N
error_dict)r&   rO   r   r   r   r`   r(   r*   r   coder   	add_error)rr   errorsr<   r   r.   messagesr`   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
y? } z| | W Y d }~nd }~ww z
| jj|dd W n t
ya } z| | W Y d }~nd }~ww | jrk|   d S d S )NF)r;   validate_unique)r&   r   r(   r   r*   InlineForeignKeyFieldr   rA   r:   r;   r   r   
full_cleanr   r   )rr   r<   r;   r,   r.   er?   r?   r@   _post_clean  s.   	


zBaseModelForm._post_cleanc              
   C   sN   |   }z
| jj|d W dS  ty& } z| | W Y d}~dS d}~ww )z
        Call the instance's validate_unique() method and update the form's
        validation errors if any were raised.
        )r;   N)r   r:   r   r   r   )rr   r;   r   r?   r?   r@   r     s   zBaseModelForm.validate_uniquec                 C   s   | j }| jj}| jj}| jj}t|j|jD ]'}t|dsq|r&|j	|vr&q|r.|j	|v r.q|j	|v r=|
| j||j	  qdS )zS
        Save the many-to-many fields and generic relations for this form.
        r8   N)r'   r&   r;   r(   r:   r   rD   rC   rO   r,   r8   )rr   r'   r;   r(   r<   r>   r?   r?   r@   	_save_m2m  s   

zBaseModelForm._save_m2mTc                 C   sZ   | j rtd| jjj| jjjrdf df |r&| j  |   | jS | 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   r:   r&   object_name_stateaddingsaver   save_m2m)rr   commitr?   r?   r@   r     s$   
zBaseModelForm.saveT)rf   rv   rw   r   rt   r   r   r   r   r   r   r   alters_datar   r?   r?   r   r@   r   S  s*    .-! 
r   c                   @   s   e Zd ZdS )r   N)rf   rv   rw   r?   r?   r?   r@   r   /  s    r   )	metaclassc                 C   s  d| i}|dur||d< |dur||d< |dur||d< |dur$||d< |dur,||d< |dur4||d< |	dur<|	|d	< |
durD|
|d
< t |drM|jfnd}td||}|r\t||_| jd }||d}t|dddu rzt|dddu rzt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.
    rQ   Nr(   r;   ri   rk   rl   rm   r`   rn   ry   r?   Form)ry   rj   zZCalling modelform_factory without defining 'fields' or 'exclude' explicitly is prohibited.)rO   ry   typestaticmethodrj   rf   rE   r   )rQ   r9   r(   r;   rj   ri   rk   rl   rm   r`   rn   r   r   ry   
class_name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$ Zd,d%d&Zd,d'd(Z fd)d*Z  ZS )-r   zO
    A ``FormSet`` for editing a queryset and/or adding new objects to it.
    NFr   )r   c                   s0   || _ || _t jdi ||||d| d S )N)r1   r2   r   r   r?   )rJ   initial_extrar   rt   )rr   r1   r2   r   r   rJ   r   rp   r   r?   r@   rt     s   

zBaseModelFormSet.__init__c                    s   | j s	t|  S t  S )z=Return the number of forms that are required in this FormSet.)is_boundlenget_querysetr   initial_form_countr   r   r?   r@   r     s   
z#BaseModelFormSet.initial_form_countc                 C   s*   t | dsdd |  D | _| j|S )N_object_dictc                 S   s   i | ]}|j |qS r?   rM   rZ   or?   r?   r@   rd         z5BaseModelFormSet._existing_object.<locals>.<dictcomp>)rO   r   r   r4   )rr   rL   r?   r?   r@   _existing_object  s   
z!BaseModelFormSet._existing_objectc                 C   s$   |j dur|j  }|j dus|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_fieldget_related_field	to_pythonrr   r.   r?   r?   r@   _get_to_python  s   


zBaseModelFormSet._get_to_pythonc                    s  ||   k }|rR| jrId| || jjjjf }z| j| }W n	 ty(   Y nDw | 	| jjj}z||}W n	 t
y@   Y n,w | ||d< n#|  | |d< n| jrlz| j||     |d< W n	 tyk   Y nw t j|fi |}|rd|j| jjjj _|S )Nz%s-%sr:   r   T)r   r   r3   rQ   r&   rL   r,   r1   KeyErrorr   r   r   r   r   
IndexErrorr   _construct_formr(   r   )rr   irp   pk_requiredpk_keyrL   r   r9   r   r?   r@   r     s6   z BaseModelFormSet._construct_formc                 C   sL   t | ds#| jd ur| j}n| jj }|js || jjjj	}|| _
| j
S )N	_queryset)rO   rJ   rQ   _default_managerr   orderedorder_byr&   rL   r,   r   )rr   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   rr   r9   r   r?   r?   r@   save_new     zBaseModelFormSet.save_newc                 C   s   |j |dS )z>Save and return an existing model instance for the given form.r   r   )rr   r9   r:   r   r?   r?   r@   save_existing  r   zBaseModelFormSet.save_existingc                 C   s   |r|   dS dS )z#Deletes an existing model instance.N)delete)rr   objr   r?   r?   r@   delete_existing  s   z BaseModelFormSet.delete_existingc                    s@   |sg  _  fdd}| _ jr |S  | | 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 ru   )saved_formsr   )r9   r   r?   r@   r     s   

z'BaseModelFormSet.save.<locals>.save_m2m)r   r   	edit_onlysave_existing_objectssave_new_objects)rr   r   r   r?   r   r@   r     s   
zBaseModelFormSet.savec                 C   s   |    d S ru   )r   r   r?   r?   r@   r        zBaseModelFormSet.cleanc                    s  t  }t  }jfddjD }|D ]   } jj|dd\}}|| || qg }|D ]R\}}	t  }
|D ]H  fdd|	D }tdd |D }|rd |vr||
v r|	|	 j
 gjd jt< |	D ]}| jv r j|= qt|
| q=q4|D ]g}t  }
|\}}}}|D ]Y  jr j| d ur j| d ur|d	kr j| }|j|j|jf}n	t j| |f} j| f| }||
v r|| j
 gjd jt<  j|= |
| qq|rt|d S )
Nc                    s    g | ]}|  r| vr|qS r?   )is_valid)rZ   r9   )forms_to_deleter?   r@   r\   "  s    z4BaseModelFormSet.validate_unique.<locals>.<listcomp>T)r;   include_meta_constraintsc                 3   s2    | ]}| j v r|jv r|n j | V  qd S ru   )r'   unique_fieldsrZ   r.   )r9   rr   r?   r@   	<genexpr>7  s    
z3BaseModelFormSet.validate_unique.<locals>.<genexpr>c                 s   s8    | ]}t |d r| n
t|trt|n|V  qdS )_get_pk_valN)rO   r   r*   listtuple)rZ   dr?   r?   r@   r   =  s    
)r   date)r   deleted_formsformsr   r:   _get_unique_checksr   r   r7   get_unique_error_messager   get_form_errorr   r   r   r'   r   yearmonthdayrE   get_date_error_messager   )rr   all_unique_checksall_date_checksvalid_formsr;   unique_checksdate_checksr   uclassunique_check	seen_datarow_datar.   
date_checklookup
unique_forr   	date_datar1   r?   )r9   r   rr   r@   r     s   




!

z BaseModelFormSet.validate_uniquec                 C   s:   t |dkrtdd|d i S tddt|tdi 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   _rr   r  r?   r?   r@   r   z  s   z)BaseModelFormSet.get_unique_error_messagec                 C   s$   t d|d |d t|d d S )NzoPlease correct the duplicate data for %(field_name)s which must be unique for the %(lookup)s in %(date_field)s.      r  )
field_name
date_fieldr  )r   r   )rr   r  r?   r?   r@   r    s   
z'BaseModelFormSet.get_date_error_messagec                 C   s   t dS )Nz*Please correct the duplicate values below.r   r   r?   r?   r@   r     s   zBaseModelFormSet.get_form_errorc                 C   s   g | _ g | _| jsg S g }| j}| jD ]=}|j}|jd u rq||v r0| j| | j||d q| rP| j ||j	f || j
|||d |sP| j| q|S Nr   )changed_objectsdeleted_objectsinitial_formsr   r:   rL   r7   r   has_changedchanged_datar   r   )rr   r   saved_instancesr   r9   r   r?   r?   r@   r     s(   

z&BaseModelFormSet.save_existing_objectsc                 C   sZ   g | _ | jD ]#}| sq| jr| |rq| j | j||d |s)| j| q| j S r  )new_objectsextra_formsr  
can_delete_should_delete_formr7   r   r   )rr   r   r9   r?   r?   r@   r     s   
z!BaseModelFormSet.save_new_objectsc           	         s$  ddl m m}m} | jjj | _} fdd|s#|j|j	vr|j
r2|jjjr-dn|jj}nz|dur?|  | j}nd}W n tyM   d}Y nw t|||fr]|jjj }n| jj }||jjj}|jjrz|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  p| jpt|  p| jo| jjo| jjjjS ru   )r)   auto_createdr*   r   parent_linkrQ   r&   rL   rM   r+   pk_is_not_editabler?   r@   r*    s   z7BaseModelFormSet.add_fields.<locals>.pk_is_not_editableNF)r   r   r/   )rN   r+   r%  r&  rQ   r&   rL   	_pk_fieldr,   r(   r   r:   r   r   r   r   r*   r   r   usingdbri   r4   r   r   r   
add_fields)	rr   r9   indexr%  r&  rL   pk_valuer   r/   r   r)  r@   r.    s2   zBaseModelFormSet.add_fields)NNr   NNr   )rf   rv   rw   __doc__rQ   r   r   r   rt   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u rt |d|	du rtdt| |||	||
|||||d}t||||||||||||d}| |_||_|S )z8Return a FormSet class for the given Django model class.ry   Nr(   r;   z]Calling modelformset_factory without defining 'fields' or 'exclude' explicitly is prohibited.)
r9   r(   r;   rj   ri   rk   rl   rm   r`   rn   )
extramin_nummax_num	can_orderr#  validate_minvalidate_maxabsolute_maxcan_delete_extrar   )rE   r   r"   r   rQ   r   )rQ   r9   rj   formsetr2  r#  r5  r4  r(   r;   ri   r7  rk   rl   rm   r`   r3  r6  rn   r8  r9  r   r   metaFormSetr?   r?   r@   r     sH   r   c                       sx   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 u r| j j | _n|| _|| _|d u r| jj}| jjd ur.|jdi | j j| ji}n|	 }| j jh| _
t j||f||d| | jjjrr| j j| jjjvrtt| jjjtrft| jjj| jj_| jjj| j j d S d S d S )N)r   rJ   r?   )fkr   rQ   r:   save_as_newr   rL   rP   r,   noner   r   rt   r9   r&   r(   r*   r   r   r7   )	rr   r1   r2   r:   r>  r   rJ   rp   r   r   r?   r@   rt   8  s    
zBaseInlineFormSet.__init__c                    s   | j rdS t  S )Nr   )r>  r   r   r   r   r?   r@   r   W  s   
z$BaseInlineFormSet.initial_form_countc                    s   t  j|fi |}| jr8t|jdd }|d urd|j_d |j|| jj< d |j|| j	j< |d ur8||j_| j
j}| j	jj| j	jjjjjkrXt| j
| j	jj}t|d|}t|j
| j	 | |S )N_mutableTrL   )r   r   r>  rE   r1   r@  r3   r+  r,   r=  r:   rL   r   r  rQ   r&   setattrget_attname)rr   r   rp   r9   mutablefk_valuer   r?   r@   r   \  s   z!BaseInlineFormSet._construct_formc                 C   s   | j jj| jdddS )N)rQ   + )r=  r   get_accessor_namerQ   replace)clsr?   r?   r@   get_default_prefixs  s   z$BaseInlineFormSet.get_default_prefixTc                    s$   t |j| jj| j t j||dS r  )rA  r:   r=  r,   r   r   r   r   r?   r@   r   w  s   zBaseInlineFormSet.save_newc                    s   t  || | j| jkr| jj}ddi}n| jj}dt|j|dt| jj	i}| jj
j| jj
jjjjkr>| jj
j|d< | jjjre|dd urT| jj|d }n| jjj}| ret| j|jd  t| jfi ||j|< d S )Npk_fieldTr^   to_field)r   r.  r+  r=  r,   rE   r(   r4   r   verbose_namer   r  rQ   r&   rL   r:   r   r   	get_fieldr-   rA  attnamer   )rr   r9   r/  r,   rp   rL  r   r?   r@   r.  ~  s$   
	

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@   r\     s    z>BaseInlineFormSet.get_unique_error_message.<locals>.<listcomp>)r   r   r  r   r   r@   r     s   z*BaseInlineFormSet.get_unique_error_message)NNNFNNr   )rf   rv   rw   r1  rt   r   r   classmethodrJ  r   r.  r   r   r?   r?   r   r@   r    5  s     
!r    c                    s<  ddl m  |j}rcfdd|jD }t|dkrU|d }j t| rI|jjjj	r7|jjjj
vsI|jjjj	sS|jjkrS|jjvrStdjjf |S |satd|jjf |S j  fdd|jD }t|dkr|d }|S |s|rd	S td
|jjjjf td|jjjjf )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,   rY   fk_namer?   r@   r\         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 | ]#}t | r%|jjks#|jjv s#|jjjjr%|jjjjv r|qS r?   )r*   r   rQ   r&   proxyproxy_for_modelrY   )r%  parent_listparent_modelr?   r@   r\     s    
Nz'%s' has no ForeignKey to '%s'.zR'%s' has more than one ForeignKey to '%s'. You must specify a 'fk_name' attribute.)rN   r%  r&   r(   r   get_parent_listr*   r   rQ   rT  rU  r   r^   )rW  rQ   rR  can_failr<   fks_to_parentr=  r?   )r%  rR  rV  rW  r@   _get_foreign_key  sf   	



-(
r[  r  c                 C   s   t | ||d}|jrd}
i d|d|d|d|d|	d|d	|d
|d|d|
d|d|d|d|d|d|d||||||d}t|fi |}||_|S )z
    Return an ``InlineFormSet`` for the given kwargs.

    ``fk_name`` must be provided if ``model`` has more than one ``ForeignKey``
    to ``parent_model``.
    rQ  r  r9   rj   r:  r2  r#  r5  r(   r;   r3  r4  ri   r6  r7  rk   rl   rm   r`   )rn   r8  r9  r   r   )r[  uniquer   r=  )rW  rQ   r9   r:  rR  r(   r;   r2  r5  r#  r4  rj   ri   r7  rk   rl   rm   r`   r3  r6  rn   r8  r9  r   r   r=  rp   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)rK  rL  c                   s`   || _ || _|| _| j d ur!| jrt| j | j|d< n| j j|d< d|d< t j|i | d S )Nr   Fr   )parent_instancerK  rL  rE   rL   r   rt   )rr   r^  rK  rL  argsrp   r   r?   r@   rt   C  s   
zInlineForeignKeyField.__init__c                 C   s`   || j v r| jr
d S | jS | jrt| j| j}n| jj}t|t|kr-t| jd dd| jS )Nr]  r   )	r5   rK  r^  rL  rE   rL   r   r   r`   )rr   r{   origr?   r?   r@   r   O  s   

zInlineForeignKeyField.cleanc                 C   s   dS NFr?   )rr   r   r1   r?   r?   r@   r  `  s   z!InlineForeignKeyField.has_changed)rf   rv   rw   r1  r   r/   r  default_error_messagesrt   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 ru   )r{   r:   )rr   r{   r:   r?   r?   r@   rt   e  s   
z!ModelChoiceIteratorValue.__init__c                 C   
   t | jS ru   )r   r{   r   r?   r?   r@   __str__i     
z ModelChoiceIteratorValue.__str__c                 C   re  ru   )hashr{   r   r?   r?   r@   __hash__l  rg  z!ModelChoiceIteratorValue.__hash__c                 C   s   t |tr|j}| j|kS ru   )r*   rd  r{   )rr   otherr?   r?   r@   __eq__o  s   

zModelChoiceIteratorValue.__eq__N)rf   rv   rw   rt   rf  ri  rk  r?   r?   r?   r@   rd  d  s
    rd  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 ru   )r.   rJ   r   r?   r?   r@   rt   v  s   zModelChoiceIterator.__init__c                 c   sJ    | j jd urd| j jfV  | j}|js| }|D ]}| |V  qd S )NrF  )r.   empty_labelrJ   _prefetch_related_lookupsiteratorchoice)rr   rJ   r   r?   r?   r@   __iter__z  s   zModelChoiceIterator.__iter__c                 C   s    | j  | jjd urd S d S )Nr  r   )rJ   countr.   rm  r   r?   r?   r@   __len__  s    zModelChoiceIterator.__len__c                 C   s   | j jd up
| j S ru   )r.   rm  rJ   existsr   r?   r?   r@   __bool__  s   zModelChoiceIterator.__bool__c                 C   s   t | j||| j|fS ru   )rd  r.   prepare_valuelabel_from_instancerr   r   r?   r?   r@   rp    s   
zModelChoiceIterator.choiceN)rf   rv   rw   rt   rq  rs  ru  rp  r?   r?   r?   r@   rl  u  s    
rl  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	---------TNrF  F)	rm  r   r/   r^   r   r_   to_field_namerT   r   c       	         K   s^   t j| f|||||d| |r|d ust| jtr!|
s!d | _n|| _|| _|	| _|| _d S )N)r   r/   r^   r   r_   )	r   rt   r*   r/   r   rm  rJ   rT   ry  )rr   rJ   rm  r   r/   r^   r   r_   ry  rT   r   rp   r?   r?   r@   rt     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.
        )rg   rT   r   r?   r?   r@   rK     s   
z%ModelChoiceField.get_limit_choices_toc                    s*   t t| |}| jd ur| j |_|S ru   )r   r   __deepcopy__rJ   all)rr   memoresultr   r?   r@   rz    s   
zModelChoiceField.__deepcopy__c                 C   s   | j S ru   )r   r   r?   r?   r@   _get_queryset  s   zModelChoiceField._get_querysetc                 C   s$   |d u rd n|  | _| j| j_d S ru   )r{  r   choicesr/   )rr   rJ   r?   r?   r@   _set_queryset  s   zModelChoiceField._set_querysetc                 C   s   t |S )z
        Convert objects into strings and generate the labels for the choices
        presented by this object. Subclasses can override this method to
        customize the display of the choices.
        r   rx  r?   r?   r@   rw    s   z$ModelChoiceField.label_from_instancec                 C   s   t | dr| jS | | S )N_choices)rO   r  ro  r   r?   r?   r@   _get_choices  s   

	zModelChoiceField._get_choicesc                    s.   t |dr| jr|| jS |jS t |S Nr&   )rO   ry  serializable_valuerL   r   rv  rr   r{   r   r?   r@   rv    s
   
zModelChoiceField.prepare_valuec              
   C   s   || j v rd S z| jpd}t|| jjrt||}| jjdi ||i}W |S  tt| jjj	fy?   t
| jd dd|idw )NrL   r]  r{   r   paramsr?   )r5   ry  r*   rJ   rQ   rE   r4   r   rh   DoesNotExistr   r`   )rr   r{   keyr?   r?   r@   r     s   


zModelChoiceField.to_pythonc                 C   s   t | |S ru   )r   validater  r?   r?   r@   r    r   zModelChoiceField.validatec                 C   s@   | j rdS |d ur|nd}|d ur|nd}t| |t|kS )NFrF  )disabledr   rv  )rr   r   r1   initial_value
data_valuer?   r?   r@   r    s
   zModelChoiceField.has_changed)rf   rv   rw   r1  r  rc  rl  ro  rt   rK   rz  r~  r  propertyrJ   rw  r  r   _set_choicesr  rv  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 )Nrm  )r   rt   )rr   rJ   rp   r   r?   r@   rt   )  s   z!ModelMultipleChoiceField.__init__c                 C   s   |sg S t | |S ru   )r   _check_valuesr  r?   r?   r@   r   ,  s   z"ModelMultipleChoiceField.to_pythonc                 C   sr   |  |}| jr|st| jd dd| js|s| j S t|ttfs-t| jd dd| 	|}| 
| |S )Nr   r`  r  )rv  r   r   r`   rJ   r?  r*   r   r   r  run_validators)rr   r{   r   r?   r?   r@   r   1  s   





zModelMultipleChoiceField.cleanc              
      s   | j pd zt|}W n ty   t| jd ddw |D ]$}z| jjdi  |i W q ttfyB   t| jd dd|idw | jjdi d  |i} fdd|D }|D ]}t||vrot| jd	 d	d
|idq[|S )z
        Given a list of possible PK values, return a QuerySet of the
        corresponding objects. Raise a ValidationError if a given value is
        invalid (not a valid PK, not in the queryset, etc.)
        rL   r  r`  r  r  z%s__inc                    s   h | ]	}t t| qS r?   )r   rE   r   r  r?   r@   r~   ]  rS  z9ModelMultipleChoiceField._check_values.<locals>.<setcomp>r]  r{   Nr?   )	ry  	frozensetrh   r   r`   rJ   rP   r   r   )rr   r{   rL   r   pksvalr?   r  r@   r  B  s<   
z&ModelMultipleChoiceField._check_valuesc                    sD   t |drt|tst |dst j  fdd|D S t |S )Nrq  r&   c                    s   g | ]} |qS r?   r?   )rZ   r}   rv  r?   r@   r\   n  r   z:ModelMultipleChoiceField.prepare_value.<locals>.<listcomp>)rO   r*   r   r   rv  r  r   r  r@   rv  g  s   z&ModelMultipleChoiceField.prepare_valuec                 C   s`   | j rdS |d u rg }|d u rg }t|t|krdS dd | |D }dd |D }||kS )NFTc                 S      h | ]}t |qS r?   r  rZ   r{   r?   r?   r@   r~   z  r   z7ModelMultipleChoiceField.has_changed.<locals>.<setcomp>c                 S   r  r?   r  r  r?   r?   r@   r~   {  r   )r  r   rv  )rr   r   r1   initial_setdata_setr?   r?   r@   r  q  s   z$ModelMultipleChoiceField.has_changed)rf   rv   rw   r1  r   r/   r   hidden_widgetr  rc  rt   r   r   r  rv  r  r   r?   r?   r   r@   r     s     %
r   c                 C   s"   t | do| jjd up| jjd uS r  )rO   r&   r(   r;   )ra   r?   r?   r@   modelform_defines_fields  s   
r  )NN)	NNNNNNNNNrb  )5r1  	itertoolsr   django.core.exceptionsr   r   r   r   django.forms.fieldsr   r   django.forms.formsr	   r
   django.forms.formsetsr   r   django.forms.utilsr   django.forms.widgetsr   r   r   r   django.utils.textr   r   django.utils.translationr   r   r  r#   r   rA   r   rV   r   rq   rx   r   r   r"   r   r   r    r[  r!   r   rd  rl  r   r   r  r?   r?   r?   r@   <module>   s    

0nQ ]
[  d
G
oR
E, 	c