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import datetime
from django import forms
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from django . db import models
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try :
sorted
except NameError :
from django . utils . itercompat import sorted
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class Author ( models . Model ) :
name = models . CharField ( max_length = 100 )
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class Meta :
ordering = ( ' name ' , )
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def __unicode__ ( self ) :
return self . name
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class BetterAuthor ( Author ) :
write_speed = models . IntegerField ( )
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class Book ( models . Model ) :
author = models . ForeignKey ( Author )
title = models . CharField ( max_length = 100 )
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class Meta :
unique_together = (
( ' author ' , ' title ' ) ,
)
ordering = [ ' id ' ]
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def __unicode__ ( self ) :
return self . title
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class BookWithCustomPK ( models . Model ) :
my_pk = models . DecimalField ( max_digits = 5 , decimal_places = 0 , primary_key = True )
author = models . ForeignKey ( Author )
title = models . CharField ( max_length = 100 )
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def __unicode__ ( self ) :
return u ' %s : %s ' % ( self . my_pk , self . title )
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class AlternateBook ( Book ) :
notes = models . CharField ( max_length = 100 )
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def __unicode__ ( self ) :
return u ' %s - %s ' % ( self . title , self . notes )
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class AuthorMeeting ( models . Model ) :
name = models . CharField ( max_length = 100 )
authors = models . ManyToManyField ( Author )
created = models . DateField ( editable = False )
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def __unicode__ ( self ) :
return self . name
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class CustomPrimaryKey ( models . Model ) :
my_pk = models . CharField ( max_length = 10 , primary_key = True )
some_field = models . CharField ( max_length = 100 )
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# models for inheritance tests.
class Place ( models . Model ) :
name = models . CharField ( max_length = 50 )
city = models . CharField ( max_length = 50 )
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def __unicode__ ( self ) :
return self . name
class Owner ( models . Model ) :
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auto_id = models . AutoField ( primary_key = True )
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name = models . CharField ( max_length = 100 )
place = models . ForeignKey ( Place )
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def __unicode__ ( self ) :
return " %s at %s " % ( self . name , self . place )
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class Location ( models . Model ) :
place = models . ForeignKey ( Place , unique = True )
# this is purely for testing the data doesn't matter here :)
lat = models . CharField ( max_length = 100 )
lon = models . CharField ( max_length = 100 )
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class OwnerProfile ( models . Model ) :
owner = models . OneToOneField ( Owner , primary_key = True )
age = models . PositiveIntegerField ( )
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def __unicode__ ( self ) :
return " %s is %d " % ( self . owner . name , self . age )
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class Restaurant ( Place ) :
serves_pizza = models . BooleanField ( )
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def __unicode__ ( self ) :
return self . name
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class Product ( models . Model ) :
slug = models . SlugField ( unique = True )
def __unicode__ ( self ) :
return self . slug
class Price ( models . Model ) :
price = models . DecimalField ( max_digits = 10 , decimal_places = 2 )
quantity = models . PositiveIntegerField ( )
def __unicode__ ( self ) :
return u " %s for %s " % ( self . quantity , self . price )
class Meta :
unique_together = ( ( ' price ' , ' quantity ' ) , )
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class MexicanRestaurant ( Restaurant ) :
serves_tacos = models . BooleanField ( )
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class ClassyMexicanRestaurant ( MexicanRestaurant ) :
restaurant = models . OneToOneField ( MexicanRestaurant , parent_link = True , primary_key = True )
tacos_are_yummy = models . BooleanField ( )
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# models for testing unique_together validation when a fk is involved and
# using inlineformset_factory.
class Repository ( models . Model ) :
name = models . CharField ( max_length = 25 )
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def __unicode__ ( self ) :
return self . name
class Revision ( models . Model ) :
repository = models . ForeignKey ( Repository )
revision = models . CharField ( max_length = 40 )
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class Meta :
unique_together = ( ( " repository " , " revision " ) , )
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def __unicode__ ( self ) :
return u " %s ( %s ) " % ( self . revision , unicode ( self . repository ) )
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# models for testing callable defaults (see bug #7975). If you define a model
# with a callable default value, you cannot rely on the initial value in a
# form.
class Person ( models . Model ) :
name = models . CharField ( max_length = 128 )
class Membership ( models . Model ) :
person = models . ForeignKey ( Person )
date_joined = models . DateTimeField ( default = datetime . datetime . now )
karma = models . IntegerField ( )
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# models for testing a null=True fk to a parent
class Team ( models . Model ) :
name = models . CharField ( max_length = 100 )
class Player ( models . Model ) :
team = models . ForeignKey ( Team , null = True )
name = models . CharField ( max_length = 100 )
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def __unicode__ ( self ) :
return self . name
# Models for testing custom ModelForm save methods in formsets and inline formsets
class Poet ( models . Model ) :
name = models . CharField ( max_length = 100 )
def __unicode__ ( self ) :
return self . name
class Poem ( models . Model ) :
poet = models . ForeignKey ( Poet )
name = models . CharField ( max_length = 100 )
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def __unicode__ ( self ) :
return self . name
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class Post ( models . Model ) :
title = models . CharField ( max_length = 50 , unique_for_date = ' posted ' , blank = True )
slug = models . CharField ( max_length = 50 , unique_for_year = ' posted ' , blank = True )
subtitle = models . CharField ( max_length = 50 , unique_for_month = ' posted ' , blank = True )
posted = models . DateField ( )
def __unicode__ ( self ) :
return self . name
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__test__ = { ' API_TESTS ' : """
>> > from datetime import date
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>> > from django . forms . models import modelformset_factory
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>> > qs = Author . objects . all ( )
>> > AuthorFormSet = modelformset_factory ( Author , extra = 3 )
>> > formset = AuthorFormSet ( queryset = qs )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_form-0-name " > Name : < / label > < input id = " id_form-0-name " type = " text " name = " form-0-name " maxlength = " 100 " / > < input type = " hidden " name = " form-0-id " id = " id_form-0-id " / > < / p >
< p > < label for = " id_form-1-name " > Name : < / label > < input id = " id_form-1-name " type = " text " name = " form-1-name " maxlength = " 100 " / > < input type = " hidden " name = " form-1-id " id = " id_form-1-id " / > < / p >
< p > < label for = " id_form-2-name " > Name : < / label > < input id = " id_form-2-name " type = " text " name = " form-2-name " maxlength = " 100 " / > < input type = " hidden " name = " form-2-id " id = " id_form-2-id " / > < / p >
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 3 ' , # the number of forms rendered
. . . ' form-INITIAL_FORMS ' : ' 0 ' , # the number of forms with initial data
. . . ' form-0-name ' : ' Charles Baudelaire ' ,
. . . ' form-1-name ' : ' Arthur Rimbaud ' ,
. . . ' form-2-name ' : ' ' ,
. . . }
>> > formset = AuthorFormSet ( data = data , queryset = qs )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Author : Charles Baudelaire > , < Author : Arthur Rimbaud > ]
>> > for author in Author . objects . order_by ( ' name ' ) :
. . . print author . name
Arthur Rimbaud
Charles Baudelaire
Gah ! We forgot Paul Verlaine . Let ' s create a formset to edit the existing
authors with an extra form to add him . We * could * pass in a queryset to
restrict the Author objects we edit , but in this case we ' ll use it to display
them in alphabetical order by name .
>> > qs = Author . objects . order_by ( ' name ' )
>> > AuthorFormSet = modelformset_factory ( Author , extra = 1 , can_delete = False )
>> > formset = AuthorFormSet ( queryset = qs )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_form-0-name " > Name : < / label > < input id = " id_form-0-name " type = " text " name = " form-0-name " value = " Arthur Rimbaud " maxlength = " 100 " / > < input type = " hidden " name = " form-0-id " value = " 2 " id = " id_form-0-id " / > < / p >
< p > < label for = " id_form-1-name " > Name : < / label > < input id = " id_form-1-name " type = " text " name = " form-1-name " value = " Charles Baudelaire " maxlength = " 100 " / > < input type = " hidden " name = " form-1-id " value = " 1 " id = " id_form-1-id " / > < / p >
< p > < label for = " id_form-2-name " > Name : < / label > < input id = " id_form-2-name " type = " text " name = " form-2-name " maxlength = " 100 " / > < input type = " hidden " name = " form-2-id " id = " id_form-2-id " / > < / p >
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 3 ' , # the number of forms rendered
. . . ' form-INITIAL_FORMS ' : ' 2 ' , # the number of forms with initial data
. . . ' form-0-id ' : ' 2 ' ,
. . . ' form-0-name ' : ' Arthur Rimbaud ' ,
. . . ' form-1-id ' : ' 1 ' ,
. . . ' form-1-name ' : ' Charles Baudelaire ' ,
. . . ' form-2-name ' : ' Paul Verlaine ' ,
. . . }
>> > formset = AuthorFormSet ( data = data , queryset = qs )
>> > formset . is_valid ( )
True
# Only changed or new objects are returned from formset.save()
>> > formset . save ( )
[ < Author : Paul Verlaine > ]
>> > for author in Author . objects . order_by ( ' name ' ) :
. . . print author . name
Arthur Rimbaud
Charles Baudelaire
Paul Verlaine
This probably shouldn ' t happen, but it will. If an add form was marked for
deltetion , make sure we don ' t save that form.
>> > qs = Author . objects . order_by ( ' name ' )
>> > AuthorFormSet = modelformset_factory ( Author , extra = 1 , can_delete = True )
>> > formset = AuthorFormSet ( queryset = qs )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_form-0-name " > Name : < / label > < input id = " id_form-0-name " type = " text " name = " form-0-name " value = " Arthur Rimbaud " maxlength = " 100 " / > < / p >
< p > < label for = " id_form-0-DELETE " > Delete : < / label > < input type = " checkbox " name = " form-0-DELETE " id = " id_form-0-DELETE " / > < input type = " hidden " name = " form-0-id " value = " 2 " id = " id_form-0-id " / > < / p >
< p > < label for = " id_form-1-name " > Name : < / label > < input id = " id_form-1-name " type = " text " name = " form-1-name " value = " Charles Baudelaire " maxlength = " 100 " / > < / p >
< p > < label for = " id_form-1-DELETE " > Delete : < / label > < input type = " checkbox " name = " form-1-DELETE " id = " id_form-1-DELETE " / > < input type = " hidden " name = " form-1-id " value = " 1 " id = " id_form-1-id " / > < / p >
< p > < label for = " id_form-2-name " > Name : < / label > < input id = " id_form-2-name " type = " text " name = " form-2-name " value = " Paul Verlaine " maxlength = " 100 " / > < / p >
< p > < label for = " id_form-2-DELETE " > Delete : < / label > < input type = " checkbox " name = " form-2-DELETE " id = " id_form-2-DELETE " / > < input type = " hidden " name = " form-2-id " value = " 3 " id = " id_form-2-id " / > < / p >
< p > < label for = " id_form-3-name " > Name : < / label > < input id = " id_form-3-name " type = " text " name = " form-3-name " maxlength = " 100 " / > < / p >
< p > < label for = " id_form-3-DELETE " > Delete : < / label > < input type = " checkbox " name = " form-3-DELETE " id = " id_form-3-DELETE " / > < input type = " hidden " name = " form-3-id " id = " id_form-3-id " / > < / p >
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 4 ' , # the number of forms rendered
. . . ' form-INITIAL_FORMS ' : ' 3 ' , # the number of forms with initial data
. . . ' form-0-id ' : ' 2 ' ,
. . . ' form-0-name ' : ' Arthur Rimbaud ' ,
. . . ' form-1-id ' : ' 1 ' ,
. . . ' form-1-name ' : ' Charles Baudelaire ' ,
. . . ' form-2-id ' : ' 3 ' ,
. . . ' form-2-name ' : ' Paul Verlaine ' ,
. . . ' form-3-name ' : ' Walt Whitman ' ,
. . . ' form-3-DELETE ' : ' on ' ,
. . . }
>> > formset = AuthorFormSet ( data = data , queryset = qs )
>> > formset . is_valid ( )
True
# No objects were changed or saved so nothing will come back.
>> > formset . save ( )
[ ]
>> > for author in Author . objects . order_by ( ' name ' ) :
. . . print author . name
Arthur Rimbaud
Charles Baudelaire
Paul Verlaine
Let ' s edit a record to ensure save only returns that one record.
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 4 ' , # the number of forms rendered
. . . ' form-INITIAL_FORMS ' : ' 3 ' , # the number of forms with initial data
. . . ' form-0-id ' : ' 2 ' ,
. . . ' form-0-name ' : ' Walt Whitman ' ,
. . . ' form-1-id ' : ' 1 ' ,
. . . ' form-1-name ' : ' Charles Baudelaire ' ,
. . . ' form-2-id ' : ' 3 ' ,
. . . ' form-2-name ' : ' Paul Verlaine ' ,
. . . ' form-3-name ' : ' ' ,
. . . ' form-3-DELETE ' : ' ' ,
. . . }
>> > formset = AuthorFormSet ( data = data , queryset = qs )
>> > formset . is_valid ( )
True
# One record has changed.
>> > formset . save ( )
[ < Author : Walt Whitman > ]
Test the behavior of commit = False and save_m2m
>> > meeting = AuthorMeeting . objects . create ( created = date . today ( ) )
>> > meeting . authors = Author . objects . all ( )
# create an Author instance to add to the meeting.
>> > new_author = Author . objects . create ( name = u ' John Steinbeck ' )
>> > AuthorMeetingFormSet = modelformset_factory ( AuthorMeeting , extra = 1 , can_delete = True )
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 2 ' , # the number of forms rendered
. . . ' form-INITIAL_FORMS ' : ' 1 ' , # the number of forms with initial data
. . . ' form-0-id ' : ' 1 ' ,
. . . ' form-0-name ' : ' 2nd Tuesday of the Week Meeting ' ,
. . . ' form-0-authors ' : [ 2 , 1 , 3 , 4 ] ,
. . . ' form-1-name ' : ' ' ,
. . . ' form-1-authors ' : ' ' ,
. . . ' form-1-DELETE ' : ' ' ,
. . . }
>> > formset = AuthorMeetingFormSet ( data = data , queryset = AuthorMeeting . objects . all ( ) )
>> > formset . is_valid ( )
True
>> > instances = formset . save ( commit = False )
>> > for instance in instances :
. . . instance . created = date . today ( )
. . . instance . save ( )
>> > formset . save_m2m ( )
>> > instances [ 0 ] . authors . all ( )
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[ < Author : Charles Baudelaire > , < Author : John Steinbeck > , < Author : Paul Verlaine > , < Author : Walt Whitman > ]
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# delete the author we created to allow later tests to continue working.
>> > new_author . delete ( )
Test the behavior of max_num with model formsets . It should properly limit
the queryset to reduce the amount of objects being pulled in when not being
used .
>> > qs = Author . objects . order_by ( ' name ' )
>> > AuthorFormSet = modelformset_factory ( Author , max_num = 2 )
>> > formset = AuthorFormSet ( queryset = qs )
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>> > [ x . name for x in formset . get_queryset ( ) ]
[ u ' Charles Baudelaire ' , u ' Paul Verlaine ' ]
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>> > AuthorFormSet = modelformset_factory ( Author , max_num = 3 )
>> > formset = AuthorFormSet ( queryset = qs )
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>> > [ x . name for x in formset . get_queryset ( ) ]
[ u ' Charles Baudelaire ' , u ' Paul Verlaine ' , u ' Walt Whitman ' ]
# ModelForm with a custom save method in a formset ###########################
>> > class PoetForm ( forms . ModelForm ) :
. . . def save ( self , commit = True ) :
. . . # change the name to "Vladimir Mayakovsky" just to be a jerk.
. . . author = super ( PoetForm , self ) . save ( commit = False )
. . . author . name = u " Vladimir Mayakovsky "
. . . if commit :
. . . author . save ( )
. . . return author
>> > PoetFormSet = modelformset_factory ( Poet , form = PoetForm )
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 3 ' , # the number of forms rendered
. . . ' form-INITIAL_FORMS ' : ' 0 ' , # the number of forms with initial data
. . . ' form-0-name ' : ' Walt Whitman ' ,
. . . ' form-1-name ' : ' Charles Baudelaire ' ,
. . . ' form-2-name ' : ' ' ,
. . . }
>> > qs = Poet . objects . all ( )
>> > formset = PoetFormSet ( data = data , queryset = qs )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Poet : Vladimir Mayakovsky > , < Poet : Vladimir Mayakovsky > ]
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# Model inheritance in model formsets ########################################
>> > BetterAuthorFormSet = modelformset_factory ( BetterAuthor )
>> > formset = BetterAuthorFormSet ( )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_form-0-name " > Name : < / label > < input id = " id_form-0-name " type = " text " name = " form-0-name " maxlength = " 100 " / > < / p >
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< p > < label for = " id_form-0-write_speed " > Write speed : < / label > < input type = " text " name = " form-0-write_speed " id = " id_form-0-write_speed " / > < input type = " hidden " name = " form-0-author_ptr " id = " id_form-0-author_ptr " / > < / p >
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>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 1 ' , # the number of forms rendered
. . . ' form-INITIAL_FORMS ' : ' 0 ' , # the number of forms with initial data
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. . . ' form-0-author_ptr ' : ' ' ,
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. . . ' form-0-name ' : ' Ernest Hemingway ' ,
. . . ' form-0-write_speed ' : ' 10 ' ,
. . . }
>> > formset = BetterAuthorFormSet ( data )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < BetterAuthor : Ernest Hemingway > ]
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>> > hemingway_id = BetterAuthor . objects . get ( name = " Ernest Hemingway " ) . pk
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>> > formset = BetterAuthorFormSet ( )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_form-0-name " > Name : < / label > < input id = " id_form-0-name " type = " text " name = " form-0-name " value = " Ernest Hemingway " maxlength = " 100 " / > < / p >
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< p > < label for = " id_form-0-write_speed " > Write speed : < / label > < input type = " text " name = " form-0-write_speed " value = " 10 " id = " id_form-0-write_speed " / > < input type = " hidden " name = " form-0-author_ptr " value = " ... " id = " id_form-0-author_ptr " / > < / p >
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< p > < label for = " id_form-1-name " > Name : < / label > < input id = " id_form-1-name " type = " text " name = " form-1-name " maxlength = " 100 " / > < / p >
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< p > < label for = " id_form-1-write_speed " > Write speed : < / label > < input type = " text " name = " form-1-write_speed " id = " id_form-1-write_speed " / > < input type = " hidden " name = " form-1-author_ptr " id = " id_form-1-author_ptr " / > < / p >
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>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 2 ' , # the number of forms rendered
. . . ' form-INITIAL_FORMS ' : ' 1 ' , # the number of forms with initial data
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. . . ' form-0-author_ptr ' : hemingway_id ,
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. . . ' form-0-name ' : ' Ernest Hemingway ' ,
. . . ' form-0-write_speed ' : ' 10 ' ,
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. . . ' form-1-author_ptr ' : ' ' ,
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. . . ' form-1-name ' : ' ' ,
. . . ' form-1-write_speed ' : ' ' ,
. . . }
>> > formset = BetterAuthorFormSet ( data )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ ]
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# Inline Formsets ############################################################
We can also create a formset that is tied to a parent model . This is how the
admin system ' s edit inline functionality works.
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>> > from django . forms . models import inlineformset_factory
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>> > AuthorBooksFormSet = inlineformset_factory ( Author , Book , can_delete = False , extra = 3 )
>> > author = Author . objects . get ( name = ' Charles Baudelaire ' )
>> > formset = AuthorBooksFormSet ( instance = author )
>> > for form in formset . forms :
. . . print form . as_p ( )
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< p > < label for = " id_book_set-0-title " > Title : < / label > < input id = " id_book_set-0-title " type = " text " name = " book_set-0-title " maxlength = " 100 " / > < input type = " hidden " name = " book_set-0-author " value = " 1 " id = " id_book_set-0-author " / > < input type = " hidden " name = " book_set-0-id " id = " id_book_set-0-id " / > < / p >
< p > < label for = " id_book_set-1-title " > Title : < / label > < input id = " id_book_set-1-title " type = " text " name = " book_set-1-title " maxlength = " 100 " / > < input type = " hidden " name = " book_set-1-author " value = " 1 " id = " id_book_set-1-author " / > < input type = " hidden " name = " book_set-1-id " id = " id_book_set-1-id " / > < / p >
< p > < label for = " id_book_set-2-title " > Title : < / label > < input id = " id_book_set-2-title " type = " text " name = " book_set-2-title " maxlength = " 100 " / > < input type = " hidden " name = " book_set-2-author " value = " 1 " id = " id_book_set-2-author " / > < input type = " hidden " name = " book_set-2-id " id = " id_book_set-2-id " / > < / p >
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>> > data = {
. . . ' book_set-TOTAL_FORMS ' : ' 3 ' , # the number of forms rendered
. . . ' book_set-INITIAL_FORMS ' : ' 0 ' , # the number of forms with initial data
. . . ' book_set-0-title ' : ' Les Fleurs du Mal ' ,
. . . ' book_set-1-title ' : ' ' ,
. . . ' book_set-2-title ' : ' ' ,
. . . }
>> > formset = AuthorBooksFormSet ( data , instance = author )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Book : Les Fleurs du Mal > ]
>> > for book in author . book_set . all ( ) :
. . . print book . title
Les Fleurs du Mal
Now that we ' ve added a book to Charles Baudelaire, let ' s try adding another
one . This time though , an edit form will be available for every existing
book .
>> > AuthorBooksFormSet = inlineformset_factory ( Author , Book , can_delete = False , extra = 2 )
>> > author = Author . objects . get ( name = ' Charles Baudelaire ' )
>> > formset = AuthorBooksFormSet ( instance = author )
>> > for form in formset . forms :
. . . print form . as_p ( )
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< p > < label for = " id_book_set-0-title " > Title : < / label > < input id = " id_book_set-0-title " type = " text " name = " book_set-0-title " value = " Les Fleurs du Mal " maxlength = " 100 " / > < input type = " hidden " name = " book_set-0-author " value = " 1 " id = " id_book_set-0-author " / > < input type = " hidden " name = " book_set-0-id " value = " 1 " id = " id_book_set-0-id " / > < / p >
< p > < label for = " id_book_set-1-title " > Title : < / label > < input id = " id_book_set-1-title " type = " text " name = " book_set-1-title " maxlength = " 100 " / > < input type = " hidden " name = " book_set-1-author " value = " 1 " id = " id_book_set-1-author " / > < input type = " hidden " name = " book_set-1-id " id = " id_book_set-1-id " / > < / p >
< p > < label for = " id_book_set-2-title " > Title : < / label > < input id = " id_book_set-2-title " type = " text " name = " book_set-2-title " maxlength = " 100 " / > < input type = " hidden " name = " book_set-2-author " value = " 1 " id = " id_book_set-2-author " / > < input type = " hidden " name = " book_set-2-id " id = " id_book_set-2-id " / > < / p >
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>> > data = {
. . . ' book_set-TOTAL_FORMS ' : ' 3 ' , # the number of forms rendered
. . . ' book_set-INITIAL_FORMS ' : ' 1 ' , # the number of forms with initial data
. . . ' book_set-0-id ' : ' 1 ' ,
. . . ' book_set-0-title ' : ' Les Fleurs du Mal ' ,
. . . ' book_set-1-title ' : ' Le Spleen de Paris ' ,
. . . ' book_set-2-title ' : ' ' ,
. . . }
>> > formset = AuthorBooksFormSet ( data , instance = author )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Book : Le Spleen de Paris > ]
As you can see , ' Le Spleen de Paris ' is now a book belonging to Charles Baudelaire .
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>> > for book in author . book_set . order_by ( ' id ' ) :
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. . . print book . title
Les Fleurs du Mal
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Le Spleen de Paris
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The save_as_new parameter lets you re - associate the data to a new instance .
This is used in the admin for save_as functionality .
>> > data = {
. . . ' book_set-TOTAL_FORMS ' : ' 3 ' , # the number of forms rendered
. . . ' book_set-INITIAL_FORMS ' : ' 2 ' , # the number of forms with initial data
. . . ' book_set-0-id ' : ' 1 ' ,
. . . ' book_set-0-title ' : ' Les Fleurs du Mal ' ,
. . . ' book_set-1-id ' : ' 2 ' ,
. . . ' book_set-1-title ' : ' Le Spleen de Paris ' ,
. . . ' book_set-2-title ' : ' ' ,
. . . }
>> > formset = AuthorBooksFormSet ( data , instance = Author ( ) , save_as_new = True )
>> > formset . is_valid ( )
True
>> > new_author = Author . objects . create ( name = ' Charles Baudelaire ' )
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>> > formset = AuthorBooksFormSet ( data , instance = new_author , save_as_new = True )
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>> > [ book for book in formset . save ( ) if book . author . pk == new_author . pk ]
[ < Book : Les Fleurs du Mal > , < Book : Le Spleen de Paris > ]
2008-07-23 12:46:31 +08:00
Test using a custom prefix on an inline formset .
>> > formset = AuthorBooksFormSet ( prefix = " test " )
>> > for form in formset . forms :
. . . print form . as_p ( )
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< p > < label for = " id_test-0-title " > Title : < / label > < input id = " id_test-0-title " type = " text " name = " test-0-title " maxlength = " 100 " / > < input type = " hidden " name = " test-0-author " id = " id_test-0-author " / > < input type = " hidden " name = " test-0-id " id = " id_test-0-id " / > < / p >
< p > < label for = " id_test-1-title " > Title : < / label > < input id = " id_test-1-title " type = " text " name = " test-1-title " maxlength = " 100 " / > < input type = " hidden " name = " test-1-author " id = " id_test-1-author " / > < input type = " hidden " name = " test-1-id " id = " id_test-1-id " / > < / p >
2008-07-23 12:46:31 +08:00
2008-12-21 12:56:32 +08:00
Test inline formsets where the inline - edited object has a custom primary key that is not the fk to the parent object .
>> > AuthorBooksFormSet2 = inlineformset_factory ( Author , BookWithCustomPK , can_delete = False , extra = 1 )
>> > formset = AuthorBooksFormSet2 ( instance = author )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_bookwithcustompk_set-0-my_pk " > My pk : < / label > < input type = " text " name = " bookwithcustompk_set-0-my_pk " id = " id_bookwithcustompk_set-0-my_pk " / > < / p >
< p > < label for = " id_bookwithcustompk_set-0-title " > Title : < / label > < input id = " id_bookwithcustompk_set-0-title " type = " text " name = " bookwithcustompk_set-0-title " maxlength = " 100 " / > < input type = " hidden " name = " bookwithcustompk_set-0-author " value = " 1 " id = " id_bookwithcustompk_set-0-author " / > < / p >
>> > data = {
. . . ' bookwithcustompk_set-TOTAL_FORMS ' : ' 1 ' , # the number of forms rendered
. . . ' bookwithcustompk_set-INITIAL_FORMS ' : ' 0 ' , # the number of forms with initial data
. . . ' bookwithcustompk_set-0-my_pk ' : ' 77777 ' ,
. . . ' bookwithcustompk_set-0-title ' : ' Les Fleurs du Mal ' ,
. . . }
>> > formset = AuthorBooksFormSet2 ( data , instance = author )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < BookWithCustomPK : 77777 : Les Fleurs du Mal > ]
>> > for book in author . bookwithcustompk_set . all ( ) :
. . . print book . title
Les Fleurs du Mal
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Test inline formsets where the inline - edited object uses multi - table inheritance , thus
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has a non AutoField yet auto - created primary key .
>> > AuthorBooksFormSet3 = inlineformset_factory ( Author , AlternateBook , can_delete = False , extra = 1 )
>> > formset = AuthorBooksFormSet3 ( instance = author )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_alternatebook_set-0-title " > Title : < / label > < input id = " id_alternatebook_set-0-title " type = " text " name = " alternatebook_set-0-title " maxlength = " 100 " / > < / p >
< p > < label for = " id_alternatebook_set-0-notes " > Notes : < / label > < input id = " id_alternatebook_set-0-notes " type = " text " name = " alternatebook_set-0-notes " maxlength = " 100 " / > < input type = " hidden " name = " alternatebook_set-0-author " value = " 1 " id = " id_alternatebook_set-0-author " / > < input type = " hidden " name = " alternatebook_set-0-book_ptr " id = " id_alternatebook_set-0-book_ptr " / > < / p >
>> > data = {
. . . ' alternatebook_set-TOTAL_FORMS ' : ' 1 ' , # the number of forms rendered
. . . ' alternatebook_set-INITIAL_FORMS ' : ' 0 ' , # the number of forms with initial data
. . . ' alternatebook_set-0-title ' : ' Flowers of Evil ' ,
. . . ' alternatebook_set-0-notes ' : ' English translation of Les Fleurs du Mal '
. . . }
>> > formset = AuthorBooksFormSet3 ( data , instance = author )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < AlternateBook : Flowers of Evil - English translation of Les Fleurs du Mal > ]
2009-03-30 23:58:52 +08:00
# ModelForm with a custom save method in an inline formset ###################
>> > class PoemForm ( forms . ModelForm ) :
. . . def save ( self , commit = True ) :
. . . # change the name to "Brooklyn Bridge" just to be a jerk.
. . . poem = super ( PoemForm , self ) . save ( commit = False )
. . . poem . name = u " Brooklyn Bridge "
. . . if commit :
. . . poem . save ( )
. . . return poem
>> > PoemFormSet = inlineformset_factory ( Poet , Poem , form = PoemForm )
>> > data = {
. . . ' poem_set-TOTAL_FORMS ' : ' 3 ' , # the number of forms rendered
. . . ' poem_set-INITIAL_FORMS ' : ' 0 ' , # the number of forms with initial data
. . . ' poem_set-0-name ' : ' The Cloud in Trousers ' ,
. . . ' poem_set-1-name ' : ' I ' ,
. . . ' poem_set-2-name ' : ' ' ,
. . . }
>> > poet = Poet . objects . create ( name = ' Vladimir Mayakovsky ' )
>> > formset = PoemFormSet ( data = data , instance = poet )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Poem : Brooklyn Bridge > , < Poem : Brooklyn Bridge > ]
2008-08-02 04:35:40 +08:00
# Test a custom primary key ###################################################
We need to ensure that it is displayed
>> > CustomPrimaryKeyFormSet = modelformset_factory ( CustomPrimaryKey )
>> > formset = CustomPrimaryKeyFormSet ( )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_form-0-my_pk " > My pk : < / label > < input id = " id_form-0-my_pk " type = " text " name = " form-0-my_pk " maxlength = " 10 " / > < / p >
< p > < label for = " id_form-0-some_field " > Some field : < / label > < input id = " id_form-0-some_field " type = " text " name = " form-0-some_field " maxlength = " 100 " / > < / p >
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2008-08-31 17:49:55 +08:00
# Custom primary keys with ForeignKey, OneToOneField and AutoField ############
>> > place = Place ( name = u ' Giordanos ' , city = u ' Chicago ' )
>> > place . save ( )
>> > FormSet = inlineformset_factory ( Place , Owner , extra = 2 , can_delete = False )
>> > formset = FormSet ( instance = place )
>> > for form in formset . forms :
. . . print form . as_p ( )
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< p > < label for = " id_owner_set-0-name " > Name : < / label > < input id = " id_owner_set-0-name " type = " text " name = " owner_set-0-name " maxlength = " 100 " / > < input type = " hidden " name = " owner_set-0-place " value = " 1 " id = " id_owner_set-0-place " / > < input type = " hidden " name = " owner_set-0-auto_id " id = " id_owner_set-0-auto_id " / > < / p >
< p > < label for = " id_owner_set-1-name " > Name : < / label > < input id = " id_owner_set-1-name " type = " text " name = " owner_set-1-name " maxlength = " 100 " / > < input type = " hidden " name = " owner_set-1-place " value = " 1 " id = " id_owner_set-1-place " / > < input type = " hidden " name = " owner_set-1-auto_id " id = " id_owner_set-1-auto_id " / > < / p >
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>> > data = {
. . . ' owner_set-TOTAL_FORMS ' : ' 2 ' ,
. . . ' owner_set-INITIAL_FORMS ' : ' 0 ' ,
. . . ' owner_set-0-auto_id ' : ' ' ,
. . . ' owner_set-0-name ' : u ' Joe Perry ' ,
. . . ' owner_set-1-auto_id ' : ' ' ,
. . . ' owner_set-1-name ' : ' ' ,
. . . }
>> > formset = FormSet ( data , instance = place )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Owner : Joe Perry at Giordanos > ]
>> > formset = FormSet ( instance = place )
>> > for form in formset . forms :
. . . print form . as_p ( )
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< p > < label for = " id_owner_set-0-name " > Name : < / label > < input id = " id_owner_set-0-name " type = " text " name = " owner_set-0-name " value = " Joe Perry " maxlength = " 100 " / > < input type = " hidden " name = " owner_set-0-place " value = " 1 " id = " id_owner_set-0-place " / > < input type = " hidden " name = " owner_set-0-auto_id " value = " 1 " id = " id_owner_set-0-auto_id " / > < / p >
< p > < label for = " id_owner_set-1-name " > Name : < / label > < input id = " id_owner_set-1-name " type = " text " name = " owner_set-1-name " maxlength = " 100 " / > < input type = " hidden " name = " owner_set-1-place " value = " 1 " id = " id_owner_set-1-place " / > < input type = " hidden " name = " owner_set-1-auto_id " id = " id_owner_set-1-auto_id " / > < / p >
< p > < label for = " id_owner_set-2-name " > Name : < / label > < input id = " id_owner_set-2-name " type = " text " name = " owner_set-2-name " maxlength = " 100 " / > < input type = " hidden " name = " owner_set-2-place " value = " 1 " id = " id_owner_set-2-place " / > < input type = " hidden " name = " owner_set-2-auto_id " id = " id_owner_set-2-auto_id " / > < / p >
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>> > data = {
. . . ' owner_set-TOTAL_FORMS ' : ' 3 ' ,
. . . ' owner_set-INITIAL_FORMS ' : ' 1 ' ,
. . . ' owner_set-0-auto_id ' : u ' 1 ' ,
. . . ' owner_set-0-name ' : u ' Joe Perry ' ,
. . . ' owner_set-1-auto_id ' : ' ' ,
. . . ' owner_set-1-name ' : u ' Jack Berry ' ,
. . . ' owner_set-2-auto_id ' : ' ' ,
. . . ' owner_set-2-name ' : ' ' ,
. . . }
>> > formset = FormSet ( data , instance = place )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Owner : Jack Berry at Giordanos > ]
# Ensure a custom primary key that is a ForeignKey or OneToOneField get rendered for the user to choose.
>> > FormSet = modelformset_factory ( OwnerProfile )
>> > formset = FormSet ( )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_form-0-owner " > Owner : < / label > < select name = " form-0-owner " id = " id_form-0-owner " >
< option value = " " selected = " selected " > - - - - - - - - - < / option >
< option value = " 1 " > Joe Perry at Giordanos < / option >
< option value = " 2 " > Jack Berry at Giordanos < / option >
< / select > < / p >
< p > < label for = " id_form-0-age " > Age : < / label > < input type = " text " name = " form-0-age " id = " id_form-0-age " / > < / p >
>> > owner = Owner . objects . get ( name = u ' Joe Perry ' )
>> > FormSet = inlineformset_factory ( Owner , OwnerProfile , max_num = 1 , can_delete = False )
>> > formset = FormSet ( instance = owner )
>> > for form in formset . forms :
. . . print form . as_p ( )
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< p > < label for = " id_ownerprofile-0-age " > Age : < / label > < input type = " text " name = " ownerprofile-0-age " id = " id_ownerprofile-0-age " / > < input type = " hidden " name = " ownerprofile-0-owner " value = " 1 " id = " id_ownerprofile-0-owner " / > < / p >
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>> > data = {
. . . ' ownerprofile-TOTAL_FORMS ' : ' 1 ' ,
. . . ' ownerprofile-INITIAL_FORMS ' : ' 0 ' ,
. . . ' ownerprofile-0-owner ' : ' ' ,
. . . ' ownerprofile-0-age ' : u ' 54 ' ,
. . . }
>> > formset = FormSet ( data , instance = owner )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < OwnerProfile : Joe Perry is 54 > ]
>> > formset = FormSet ( instance = owner )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_ownerprofile-0-age " > Age : < / label > < input type = " text " name = " ownerprofile-0-age " value = " 54 " id = " id_ownerprofile-0-age " / > < input type = " hidden " name = " ownerprofile-0-owner " value = " 1 " id = " id_ownerprofile-0-owner " / > < / p >
>> > data = {
. . . ' ownerprofile-TOTAL_FORMS ' : ' 1 ' ,
. . . ' ownerprofile-INITIAL_FORMS ' : ' 1 ' ,
. . . ' ownerprofile-0-owner ' : u ' 1 ' ,
. . . ' ownerprofile-0-age ' : u ' 55 ' ,
. . . }
>> > formset = FormSet ( data , instance = owner )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < OwnerProfile : Joe Perry is 55 > ]
2009-05-07 20:17:52 +08:00
# ForeignKey with unique=True should enforce max_num=1
2008-09-01 05:14:46 +08:00
>> > FormSet = inlineformset_factory ( Place , Location , can_delete = False )
>> > formset = FormSet ( instance = place )
>> > for form in formset . forms :
. . . print form . as_p ( )
< p > < label for = " id_location_set-0-lat " > Lat : < / label > < input id = " id_location_set-0-lat " type = " text " name = " location_set-0-lat " maxlength = " 100 " / > < / p >
2008-11-01 06:07:05 +08:00
< p > < label for = " id_location_set-0-lon " > Lon : < / label > < input id = " id_location_set-0-lon " type = " text " name = " location_set-0-lon " maxlength = " 100 " / > < input type = " hidden " name = " location_set-0-place " value = " 1 " id = " id_location_set-0-place " / > < input type = " hidden " name = " location_set-0-id " id = " id_location_set-0-id " / > < / p >
2008-09-01 05:14:46 +08:00
2008-08-30 01:41:40 +08:00
# Foreign keys in parents ########################################
>> > from django . forms . models import _get_foreign_key
>> > type ( _get_foreign_key ( Restaurant , Owner ) )
< class ' django . db . models . fields . related . ForeignKey ' >
>> > type ( _get_foreign_key ( MexicanRestaurant , Owner ) )
< class ' django . db . models . fields . related . ForeignKey ' >
2008-09-02 03:08:08 +08:00
# unique/unique_together validation ###########################################
>> > FormSet = modelformset_factory ( Product , extra = 1 )
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 1 ' ,
. . . ' form-INITIAL_FORMS ' : ' 0 ' ,
. . . ' form-0-slug ' : ' car-red ' ,
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Product : car - red > ]
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 1 ' ,
. . . ' form-INITIAL_FORMS ' : ' 0 ' ,
. . . ' form-0-slug ' : ' car-red ' ,
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
False
>> > formset . errors
[ { ' slug ' : [ u ' Product with this Slug already exists. ' ] } ]
# unique_together
>> > FormSet = modelformset_factory ( Price , extra = 1 )
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 1 ' ,
. . . ' form-INITIAL_FORMS ' : ' 0 ' ,
. . . ' form-0-price ' : u ' 12.00 ' ,
. . . ' form-0-quantity ' : ' 1 ' ,
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Price : 1 for 12.00 > ]
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 1 ' ,
. . . ' form-INITIAL_FORMS ' : ' 0 ' ,
. . . ' form-0-price ' : u ' 12.00 ' ,
. . . ' form-0-quantity ' : ' 1 ' ,
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
False
>> > formset . errors
[ { ' __all__ ' : [ u ' Price with this Price and Quantity already exists. ' ] } ]
2008-11-01 06:07:05 +08:00
# unique_together with inlineformset_factory
# Also see bug #8882.
>> > repository = Repository . objects . create ( name = u ' Test Repo ' )
>> > FormSet = inlineformset_factory ( Repository , Revision , extra = 1 )
>> > data = {
. . . ' revision_set-TOTAL_FORMS ' : ' 1 ' ,
. . . ' revision_set-INITIAL_FORMS ' : ' 0 ' ,
. . . ' revision_set-0-repository ' : repository . pk ,
. . . ' revision_set-0-revision ' : ' 146239817507f148d448db38840db7c3cbf47c76 ' ,
. . . ' revision_set-0-DELETE ' : ' ' ,
. . . }
>> > formset = FormSet ( data , instance = repository )
>> > formset . is_valid ( )
True
>> > formset . save ( )
[ < Revision : 146239817507 f148d448db38840db7c3cbf47c76 ( Test Repo ) > ]
# attempt to save the same revision against against the same repo.
>> > data = {
. . . ' revision_set-TOTAL_FORMS ' : ' 1 ' ,
. . . ' revision_set-INITIAL_FORMS ' : ' 0 ' ,
. . . ' revision_set-0-repository ' : repository . pk ,
. . . ' revision_set-0-revision ' : ' 146239817507f148d448db38840db7c3cbf47c76 ' ,
. . . ' revision_set-0-DELETE ' : ' ' ,
. . . }
>> > formset = FormSet ( data , instance = repository )
>> > formset . is_valid ( )
False
>> > formset . errors
[ { ' __all__ ' : [ u ' Revision with this Repository and Revision already exists. ' ] } ]
2008-11-02 06:25:41 +08:00
# unique_together with inlineformset_factory with overridden form fields
# Also see #9494
>> > FormSet = inlineformset_factory ( Repository , Revision , fields = ( ' revision ' , ) , extra = 1 )
>> > data = {
. . . ' revision_set-TOTAL_FORMS ' : ' 1 ' ,
. . . ' revision_set-INITIAL_FORMS ' : ' 0 ' ,
. . . ' revision_set-0-repository ' : repository . pk ,
. . . ' revision_set-0-revision ' : ' 146239817507f148d448db38840db7c3cbf47c76 ' ,
. . . ' revision_set-0-DELETE ' : ' ' ,
. . . }
>> > formset = FormSet ( data , instance = repository )
>> > formset . is_valid ( )
False
2008-09-02 05:28:32 +08:00
# Use of callable defaults (see bug #7975).
>> > person = Person . objects . create ( name = ' Ringo ' )
>> > FormSet = inlineformset_factory ( Person , Membership , can_delete = False , extra = 1 )
>> > formset = FormSet ( instance = person )
# Django will render a hidden field for model fields that have a callable
# default. This is required to ensure the value is tested for change correctly
# when determine what extra forms have changed to save.
>> > form = formset . forms [ 0 ] # this formset only has one form
>> > now = form . fields [ ' date_joined ' ] . initial
>> > print form . as_p ( )
2009-12-13 04:52:15 +08:00
< p > < label for = " id_membership_set-0-date_joined " > Date joined : < / label > < input type = " text " name = " membership_set-0-date_joined " value = " ... " id = " id_membership_set-0-date_joined " / > < input type = " hidden " name = " initial-membership_set-0-date_joined " value = " ... " id = " initial-membership_set-0-id_membership_set-0-date_joined " / > < / p >
2008-11-01 06:07:05 +08:00
< p > < label for = " id_membership_set-0-karma " > Karma : < / label > < input type = " text " name = " membership_set-0-karma " id = " id_membership_set-0-karma " / > < input type = " hidden " name = " membership_set-0-person " value = " 1 " id = " id_membership_set-0-person " / > < input type = " hidden " name = " membership_set-0-id " id = " id_membership_set-0-id " / > < / p >
2008-09-02 05:28:32 +08:00
# test for validation with callable defaults. Validations rely on hidden fields
>> > data = {
. . . ' membership_set-TOTAL_FORMS ' : ' 1 ' ,
. . . ' membership_set-INITIAL_FORMS ' : ' 0 ' ,
. . . ' membership_set-0-date_joined ' : unicode ( now . strftime ( ' % Y- % m- %d % H: % M: % S ' ) ) ,
. . . ' initial-membership_set-0-date_joined ' : unicode ( now . strftime ( ' % Y- % m- %d % H: % M: % S ' ) ) ,
. . . ' membership_set-0-karma ' : ' ' ,
. . . }
>> > formset = FormSet ( data , instance = person )
>> > formset . is_valid ( )
True
# now test for when the data changes
>> > one_day_later = now + datetime . timedelta ( days = 1 )
>> > filled_data = {
. . . ' membership_set-TOTAL_FORMS ' : ' 1 ' ,
. . . ' membership_set-INITIAL_FORMS ' : ' 0 ' ,
. . . ' membership_set-0-date_joined ' : unicode ( one_day_later . strftime ( ' % Y- % m- %d % H: % M: % S ' ) ) ,
. . . ' initial-membership_set-0-date_joined ' : unicode ( now . strftime ( ' % Y- % m- %d % H: % M: % S ' ) ) ,
. . . ' membership_set-0-karma ' : ' ' ,
. . . }
>> > formset = FormSet ( filled_data , instance = person )
>> > formset . is_valid ( )
False
# now test with split datetime fields
>> > class MembershipForm ( forms . ModelForm ) :
. . . date_joined = forms . SplitDateTimeField ( initial = now )
. . . class Meta :
. . . model = Membership
. . . def __init__ ( self , * * kwargs ) :
. . . super ( MembershipForm , self ) . __init__ ( * * kwargs )
. . . self . fields [ ' date_joined ' ] . widget = forms . SplitDateTimeWidget ( )
>> > FormSet = inlineformset_factory ( Person , Membership , form = MembershipForm , can_delete = False , extra = 1 )
>> > data = {
. . . ' membership_set-TOTAL_FORMS ' : ' 1 ' ,
. . . ' membership_set-INITIAL_FORMS ' : ' 0 ' ,
. . . ' membership_set-0-date_joined_0 ' : unicode ( now . strftime ( ' % Y- % m- %d ' ) ) ,
. . . ' membership_set-0-date_joined_1 ' : unicode ( now . strftime ( ' % H: % M: % S ' ) ) ,
. . . ' initial-membership_set-0-date_joined ' : unicode ( now . strftime ( ' % Y- % m- %d % H: % M: % S ' ) ) ,
. . . ' membership_set-0-karma ' : ' ' ,
. . . }
>> > formset = FormSet ( data , instance = person )
>> > formset . is_valid ( )
True
2008-10-29 04:01:03 +08:00
# inlineformset_factory tests with fk having null=True. see #9462.
# create some data that will exbit the issue
>> > team = Team . objects . create ( name = u " Red Vipers " )
>> > Player ( name = " Timmy " ) . save ( )
>> > Player ( name = " Bobby " , team = team ) . save ( )
>> > PlayerInlineFormSet = inlineformset_factory ( Team , Player )
>> > formset = PlayerInlineFormSet ( )
>> > formset . get_queryset ( )
[ ]
>> > formset = PlayerInlineFormSet ( instance = team )
>> > formset . get_queryset ( )
[ < Player : Bobby > ]
2009-04-19 05:03:29 +08:00
# a formset for a Model that has a custom primary key that still needs to be
# added to the formset automatically
>> > FormSet = modelformset_factory ( ClassyMexicanRestaurant , fields = [ " tacos_are_yummy " ] )
>> > sorted ( FormSet ( ) . forms [ 0 ] . fields . keys ( ) )
[ ' restaurant ' , ' tacos_are_yummy ' ]
2009-05-07 20:17:52 +08:00
# Prevent duplicates from within the same formset
>> > FormSet = modelformset_factory ( Product , extra = 2 )
>> > data = {
. . . ' form-TOTAL_FORMS ' : 2 ,
. . . ' form-INITIAL_FORMS ' : 0 ,
. . . ' form-0-slug ' : ' red_car ' ,
. . . ' form-1-slug ' : ' red_car ' ,
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
False
>> > formset . _non_form_errors
[ u ' Please correct the duplicate data for slug. ' ]
>> > FormSet = modelformset_factory ( Price , extra = 2 )
>> > data = {
. . . ' form-TOTAL_FORMS ' : 2 ,
. . . ' form-INITIAL_FORMS ' : 0 ,
. . . ' form-0-price ' : ' 25 ' ,
. . . ' form-0-quantity ' : ' 7 ' ,
. . . ' form-1-price ' : ' 25 ' ,
. . . ' form-1-quantity ' : ' 7 ' ,
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
False
>> > formset . _non_form_errors
[ u ' Please correct the duplicate data for price and quantity, which must be unique. ' ]
# only the price field is specified, this should skip any unique checks since the unique_together is not fulfilled.
# this will fail with a KeyError if broken.
>> > FormSet = modelformset_factory ( Price , fields = ( " price " , ) , extra = 2 )
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 2 ' ,
. . . ' form-INITIAL_FORMS ' : ' 0 ' ,
. . . ' form-0-price ' : ' 24 ' ,
. . . ' form-1-price ' : ' 24 ' ,
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
True
>> > FormSet = inlineformset_factory ( Author , Book , extra = 0 )
>> > author = Author . objects . order_by ( ' id ' ) [ 0 ]
>> > book_ids = author . book_set . values_list ( ' id ' , flat = True )
>> > data = {
. . . ' book_set-TOTAL_FORMS ' : ' 2 ' ,
. . . ' book_set-INITIAL_FORMS ' : ' 2 ' ,
. . .
. . . ' book_set-0-title ' : ' The 2008 Election ' ,
. . . ' book_set-0-author ' : str ( author . id ) ,
. . . ' book_set-0-id ' : str ( book_ids [ 0 ] ) ,
. . .
. . . ' book_set-1-title ' : ' The 2008 Election ' ,
. . . ' book_set-1-author ' : str ( author . id ) ,
. . . ' book_set-1-id ' : str ( book_ids [ 1 ] ) ,
. . . }
>> > formset = FormSet ( data = data , instance = author )
>> > formset . is_valid ( )
False
>> > formset . _non_form_errors
[ u ' Please correct the duplicate data for title. ' ]
>> > formset . errors
[ { } , { ' __all__ ' : u ' Please correct the duplicate values below. ' } ]
>> > FormSet = modelformset_factory ( Post , extra = 2 )
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 2 ' ,
. . . ' form-INITIAL_FORMS ' : ' 0 ' ,
. . .
. . . ' form-0-title ' : ' blah ' ,
. . . ' form-0-slug ' : ' Morning ' ,
. . . ' form-0-subtitle ' : ' foo ' ,
. . . ' form-0-posted ' : ' 2009-01-01 ' ,
. . . ' form-1-title ' : ' blah ' ,
. . . ' form-1-slug ' : ' Morning in Prague ' ,
. . . ' form-1-subtitle ' : ' rawr ' ,
. . . ' form-1-posted ' : ' 2009-01-01 '
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
False
>> > formset . _non_form_errors
[ u ' Please correct the duplicate data for title which must be unique for the date in posted. ' ]
>> > formset . errors
[ { } , { ' __all__ ' : u ' Please correct the duplicate values below. ' } ]
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 2 ' ,
. . . ' form-INITIAL_FORMS ' : ' 0 ' ,
. . .
. . . ' form-0-title ' : ' foo ' ,
. . . ' form-0-slug ' : ' Morning in Prague ' ,
. . . ' form-0-subtitle ' : ' foo ' ,
. . . ' form-0-posted ' : ' 2009-01-01 ' ,
. . . ' form-1-title ' : ' blah ' ,
. . . ' form-1-slug ' : ' Morning in Prague ' ,
. . . ' form-1-subtitle ' : ' rawr ' ,
. . . ' form-1-posted ' : ' 2009-08-02 '
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
False
>> > formset . _non_form_errors
[ u ' Please correct the duplicate data for slug which must be unique for the year in posted. ' ]
>> > data = {
. . . ' form-TOTAL_FORMS ' : ' 2 ' ,
. . . ' form-INITIAL_FORMS ' : ' 0 ' ,
. . .
. . . ' form-0-title ' : ' foo ' ,
. . . ' form-0-slug ' : ' Morning in Prague ' ,
. . . ' form-0-subtitle ' : ' rawr ' ,
. . . ' form-0-posted ' : ' 2008-08-01 ' ,
. . . ' form-1-title ' : ' blah ' ,
. . . ' form-1-slug ' : ' Prague ' ,
. . . ' form-1-subtitle ' : ' rawr ' ,
. . . ' form-1-posted ' : ' 2009-08-02 '
. . . }
>> > formset = FormSet ( data )
>> > formset . is_valid ( )
False
>> > formset . _non_form_errors
[ u ' Please correct the duplicate data for subtitle which must be unique for the month in posted. ' ]
2008-07-19 07:54:34 +08:00
""" }