<s> from sellmo . utils . forms import FormFactory <EOL> from django import forms <EOL> from django . utils . translation import ugettext_lazy as _ <EOL> from . models import Attribute <EOL> class ProductAttributeFormMixin ( object ) : <EOL> def __init__ ( self , * args , ** kwargs ) : <EOL> initial = { } <EOL> if '<STR_LIT>' in kwargs : <EOL> initial = kwargs [ '<STR_LIT>' ] <EOL> instance = None <EOL> if '<STR_LIT>' in kwargs : <EOL> instance = kwargs [ '<STR_LIT>' ] <EOL> if instance : <EOL> for attribute in self . __attributes : <EOL> if attribute in instance . attributes : <EOL> field_name = self . __attribute_field_names [ attribute . key ] <EOL> field = self . __attribute_fields [ attribute . key ] <EOL> value = instance . attributes [ attribute ] <EOL> initial [ field_name ] = value <EOL> kwargs [ '<STR_LIT>' ] = initial <EOL> super ( ProductAttributeFormMixin , self ) . __init__ ( * args , ** kwargs ) <EOL> def save ( self , commit = True ) : <EOL> instance = super ( ProductAttributeFormMixin , self ) . save ( commit = False ) <EOL> for attribute in self . __attributes : <EOL> field_name = self . __attribute_field_names [ attribute . key ] <EOL> value = self . cleaned_data . get ( field_name ) <EOL> instance . attributes [ attribute . key ] = value <EOL> if commit : <EOL> instance . save ( ) <EOL> self . save_m2m ( ) <EOL> return instance <EOL> class ProductAttributeFormFactory ( FormFactory ) : <EOL> def __init__ ( <EOL> self , <EOL> form = None , <EOL> mixin = None , <EOL> prefix = None , <EOL> attribute_set = None , <EOL> formfield_callback = None <EOL> ) : <EOL> self . form = form or forms . ModelForm <EOL> self . mixin = mixin or ProductAttributeFormMixin <EOL> self . prefix = prefix <EOL> self . attribute_set = attribute_set <EOL> self . formfield_callback = formfield_callback <EOL> def get_attributes ( self ) : <EOL> attributes = Attribute . objects . all ( ) <EOL> if self . attribute_set is not None : <EOL> attributes = ( <EOL> attributes . for_attribute_set ( self . attribute_set ) <EOL> | attributes . filter ( sets = None ) <EOL> ) <EOL> else : <EOL> attributes = attributes . filter ( sets = None ) <EOL> return attributes <EOL> def get_attribute_formfield_names ( self ) : <EOL> keys = self . get_attributes ( ) . values_list ( '<STR_LIT:key>' , flat = True ) <EOL> names = [ ] <EOL> for key in keys : <EOL> if self . prefix : <EOL> names . append ( '<STR_LIT>' % ( self . prefix , key ) ) <EOL> else : <EOL> names . append ( key ) <EOL> return names <EOL> def get_attribute_formfield_name ( self , attribute ) : <EOL> if self . prefix : <EOL> return '<STR_LIT>' % ( self . prefix , attribute . key ) <EOL> else : <EOL> return attribute . key <EOL> def get_attribute_formfield ( self , attribute ) : <EOL> typ = attribute . get_type ( ) <EOL> choices = typ . get_choices ( attribute ) <EOL> if choices is not None and not attribute . required : <EOL> choices = [ ( typ . get_empty_value ( ) , '<STR_LIT>' ) ] + choices <EOL> field_cls , args , kwargs = typ . get_formfield ( <EOL> label = attribute . name , <EOL> required = attribute . required , <EOL> choices = choices <EOL> ) <EOL> formfield = field_cls ( * args , ** kwargs ) <EOL> return formfield <EOL> def factory ( self ) : <EOL> attributes = self . get_attributes ( ) <EOL> names = { } <EOL> fields = { } <EOL> attr_dict = { <EOL> '<STR_LIT>' . format ( self . mixin . __name__ ) : attributes , <EOL> '<STR_LIT>' . format ( self . mixin . __name__ ) : names , <EOL> '<STR_LIT>' . format ( self . mixin . __name__ ) : fields , <EOL> } <EOL> for attribute in attributes : <EOL> formfield = self . get_attribute_formfield ( attribute ) <EOL> if self . formfield_callback : <EOL> formfield = self . formfield_callback ( attribute , formfield ) <EOL> name = self . get_attribute_formfield_name ( attribute ) <EOL> names [ attribute . key ] = name <EOL> fields [ attribute . key ] = formfield <EOL> attr_dict [ name ] = formfield <EOL> return type ( '<STR_LIT>' , ( self . mixin , self . form ) , attr_dict ) </s>
