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Viewing changes to tests/regressiontests/forms/tests/formsets.py

  • Committer: Package Import Robot
  • Author(s): Raphaël Hertzog
  • Date: 2013-02-24 10:28:08 UTC
  • mfrom: (1.2.17)
  • mto: This revision was merged to the branch mainline in revision 45.
  • Revision ID: package-import@ubuntu.com-20130224102808-jx3ea5pnoefkzu94
Tags: upstream-1.4.5
Import upstream version 1.4.5

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tests/regressiontests/forms/tests/formsets.py
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# -*- coding: utf-8 -*-
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from django.forms import Form, CharField, IntegerField, ValidationError, DateField
 
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from django.forms import Form, CharField, IntegerField, ValidationError, DateField, formsets
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from django.forms.formsets import formset_factory, BaseFormSet
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from django.test import TestCase
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        # for adding data. By default, it displays 1 blank form. It can display more,
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        # but we'll look at how to do so later.
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        formset = ChoiceFormSet(auto_id=False, prefix='choices')
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        self.assertHTMLEqual(str(formset), """<input type="hidden" name="choices-TOTAL_FORMS" value="1" /><input type="hidden" name="choices-INITIAL_FORMS" value="0" /><input type="hidden" name="choices-MAX_NUM_FORMS" />
 
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        self.assertHTMLEqual(str(formset), """<input type="hidden" name="choices-TOTAL_FORMS" value="1" /><input type="hidden" name="choices-INITIAL_FORMS" value="0" /><input type="hidden" name="choices-MAX_NUM_FORMS" value="1000" />
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<tr><th>Choice:</th><td><input type="text" name="choices-0-choice" /></td></tr>
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<tr><th>Votes:</th><td><input type="text" name="choices-0-votes" /></td></tr>""")
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        # Limiting the maximum number of forms ########################################
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        # Base case for max_num.
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        # When not passed, max_num will take its default value of None, i.e. unlimited
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        # number of forms, only controlled by the value of the extra parameter.
 
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        # When not passed, max_num will take a high default value, leaving the
 
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        # number of forms only controlled by the value of the extra parameter.
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        LimitedFavoriteDrinkFormSet = formset_factory(FavoriteDrinkForm, extra=3)
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        formset = LimitedFavoriteDrinkFormSet()
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    def test_max_num_with_initial_data(self):
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        # max_num with initial data
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        # When not passed, max_num will take its default value of None, i.e. unlimited
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        # number of forms, only controlled by the values of the initial and extra
 
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        # When not passed, max_num will take a high default value, leaving the
 
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        # number of forms only controlled by the value of the initial and extra
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        # parameters.
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        initial = [
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        self.assertEqual(len(formset.forms), 0)
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        self.assertTrue(formset)
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    def test_hard_limit_on_instantiated_forms(self):
 
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        """A formset has a hard limit on the number of forms instantiated."""
 
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        # reduce the default limit of 1000 temporarily for testing
 
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        _old_DEFAULT_MAX_NUM = formsets.DEFAULT_MAX_NUM
 
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        try:
 
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            formsets.DEFAULT_MAX_NUM = 3
 
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            ChoiceFormSet = formset_factory(Choice)
 
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            # someone fiddles with the mgmt form data...
 
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            formset = ChoiceFormSet(
 
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                {
 
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                    'choices-TOTAL_FORMS': '4',
 
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                    'choices-INITIAL_FORMS': '0',
 
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                    'choices-MAX_NUM_FORMS': '4',
 
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                    'choices-0-choice': 'Zero',
 
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                    'choices-0-votes': '0',
 
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                    'choices-1-choice': 'One',
 
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                    'choices-1-votes': '1',
 
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                    'choices-2-choice': 'Two',
 
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                    'choices-2-votes': '2',
 
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                    'choices-3-choice': 'Three',
 
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                    'choices-3-votes': '3',
 
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                    },
 
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                prefix='choices',
 
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                )
 
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            # But we still only instantiate 3 forms
 
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            self.assertEqual(len(formset.forms), 3)
 
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        finally:
 
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            formsets.DEFAULT_MAX_NUM = _old_DEFAULT_MAX_NUM
 
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    def test_increase_hard_limit(self):
 
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        """Can increase the built-in forms limit via a higher max_num."""
 
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        # reduce the default limit of 1000 temporarily for testing
 
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        _old_DEFAULT_MAX_NUM = formsets.DEFAULT_MAX_NUM
 
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        try:
 
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            formsets.DEFAULT_MAX_NUM = 3
 
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            # for this form, we want a limit of 4
 
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            ChoiceFormSet = formset_factory(Choice, max_num=4)
 
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            formset = ChoiceFormSet(
 
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                {
 
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                    'choices-TOTAL_FORMS': '4',
 
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                    'choices-INITIAL_FORMS': '0',
 
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                    'choices-MAX_NUM_FORMS': '4',
 
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                    'choices-0-choice': 'Zero',
 
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                    'choices-0-votes': '0',
 
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                    'choices-1-choice': 'One',
 
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                    'choices-1-votes': '1',
 
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                    'choices-2-choice': 'Two',
 
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                    'choices-2-votes': '2',
 
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                    'choices-3-choice': 'Three',
 
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                    'choices-3-votes': '3',
 
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                    },
 
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                prefix='choices',
 
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                )
 
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            # This time four forms are instantiated
 
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            self.assertEqual(len(formset.forms), 4)
 
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        finally:
 
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            formsets.DEFAULT_MAX_NUM = _old_DEFAULT_MAX_NUM
 
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data = {
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    'choices-TOTAL_FORMS': '1', # the number of forms rendered