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from django import forms
from django.contrib.contenttypes.forms import generic_inlineformset_factory
from django.contrib.contenttypes.models import ContentType
from django.db import models
from django.test import TestCase
from django.test.utils import isolate_apps
from .models import (
Animal, ForProxyModelModel, Gecko, Mineral, ProxyRelatedModel, TaggedItem,
)
class CustomWidget(forms.TextInput):
pass
class TaggedItemForm(forms.ModelForm):
class Meta:
model = TaggedItem
fields = '__all__'
widgets = {'tag': CustomWidget}
class GenericInlineFormsetTests(TestCase):
def test_output(self):
GenericFormSet = generic_inlineformset_factory(TaggedItem, extra=1)
formset = GenericFormSet()
self.assertHTMLEqual(
''.join(form.as_p() for form in formset.forms),
"""<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-tag">
Tag:</label> <input id="id_generic_relations-taggeditem-content_type-object_id-0-tag" type="text"
name="generic_relations-taggeditem-content_type-object_id-0-tag" maxlength="50"></p>
<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-DELETE">Delete:</label>
<input type="checkbox" name="generic_relations-taggeditem-content_type-object_id-0-DELETE"
id="id_generic_relations-taggeditem-content_type-object_id-0-DELETE">
<input type="hidden" name="generic_relations-taggeditem-content_type-object_id-0-id"
id="id_generic_relations-taggeditem-content_type-object_id-0-id"></p>"""
)
formset = GenericFormSet(instance=Animal())
self.assertHTMLEqual(
''.join(form.as_p() for form in formset.forms),
"""<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-tag">
Tag:</label> <input id="id_generic_relations-taggeditem-content_type-object_id-0-tag"
type="text" name="generic_relations-taggeditem-content_type-object_id-0-tag" maxlength="50"></p>
<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-DELETE">Delete:</label>
<input type="checkbox" name="generic_relations-taggeditem-content_type-object_id-0-DELETE"
id="id_generic_relations-taggeditem-content_type-object_id-0-DELETE"><input type="hidden"
name="generic_relations-taggeditem-content_type-object_id-0-id"
id="id_generic_relations-taggeditem-content_type-object_id-0-id"></p>"""
)
platypus = Animal.objects.create(
common_name='Platypus', latin_name='Ornithorhynchus anatinus',
)
platypus.tags.create(tag='shiny')
GenericFormSet = generic_inlineformset_factory(TaggedItem, extra=1)
formset = GenericFormSet(instance=platypus)
tagged_item_id = TaggedItem.objects.get(tag='shiny', object_id=platypus.id).id
self.assertHTMLEqual(
''.join(form.as_p() for form in formset.forms),
"""<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-tag">Tag:</label>
<input id="id_generic_relations-taggeditem-content_type-object_id-0-tag" type="text"
name="generic_relations-taggeditem-content_type-object_id-0-tag" value="shiny" maxlength="50"></p>
<p><label for="id_generic_relations-taggeditem-content_type-object_id-0-DELETE">Delete:</label>
<input type="checkbox" name="generic_relations-taggeditem-content_type-object_id-0-DELETE"
id="id_generic_relations-taggeditem-content_type-object_id-0-DELETE">
<input type="hidden" name="generic_relations-taggeditem-content_type-object_id-0-id"
value="%s" id="id_generic_relations-taggeditem-content_type-object_id-0-id"></p>
<p><label for="id_generic_relations-taggeditem-content_type-object_id-1-tag">Tag:</label>
<input id="id_generic_relations-taggeditem-content_type-object_id-1-tag" type="text"
name="generic_relations-taggeditem-content_type-object_id-1-tag" maxlength="50"></p>
<p><label for="id_generic_relations-taggeditem-content_type-object_id-1-DELETE">Delete:</label>
<input type="checkbox" name="generic_relations-taggeditem-content_type-object_id-1-DELETE"
id="id_generic_relations-taggeditem-content_type-object_id-1-DELETE">
<input type="hidden" name="generic_relations-taggeditem-content_type-object_id-1-id"
id="id_generic_relations-taggeditem-content_type-object_id-1-id"></p>""" % tagged_item_id
)
lion = Animal.objects.create(common_name='Lion', latin_name='Panthera leo')
formset = GenericFormSet(instance=lion, prefix='x')
self.assertHTMLEqual(
''.join(form.as_p() for form in formset.forms),
"""<p><label for="id_x-0-tag">Tag:</label>
<input id="id_x-0-tag" type="text" name="x-0-tag" maxlength="50"></p>
<p><label for="id_x-0-DELETE">Delete:</label> <input type="checkbox" name="x-0-DELETE" id="id_x-0-DELETE">
<input type="hidden" name="x-0-id" id="id_x-0-id"></p>"""
)
def test_options(self):
TaggedItemFormSet = generic_inlineformset_factory(
TaggedItem,
can_delete=False,
exclude=['tag'],
extra=3,
)
platypus = Animal.objects.create(common_name='Platypus', latin_name='Ornithorhynchus anatinus')
harmless = platypus.tags.create(tag='harmless')
mammal = platypus.tags.create(tag='mammal')
# Works without a queryset.
formset = TaggedItemFormSet(instance=platypus)
self.assertEqual(len(formset.forms), 5)
self.assertHTMLEqual(
formset.forms[0].as_p(),
'<input type="hidden" name="generic_relations-taggeditem-content_type-object_id-0-id" value="%s" '
'id="id_generic_relations-taggeditem-content_type-object_id-0-id">' % harmless.pk
)
self.assertEqual(formset.forms[0].instance, harmless)
self.assertEqual(formset.forms[1].instance, mammal)
self.assertIsNone(formset.forms[2].instance.pk)
# A queryset can be used to alter display ordering.
formset = TaggedItemFormSet(instance=platypus, queryset=TaggedItem.objects.order_by('-tag'))
self.assertEqual(len(formset.forms), 5)
self.assertEqual(formset.forms[0].instance, mammal)
self.assertEqual(formset.forms[1].instance, harmless)
self.assertIsNone(formset.forms[2].instance.pk)
# A queryset that omits items.
formset = TaggedItemFormSet(instance=platypus, queryset=TaggedItem.objects.filter(tag__startswith='harm'))
self.assertEqual(len(formset.forms), 4)
self.assertEqual(formset.forms[0].instance, harmless)
self.assertIsNone(formset.forms[1].instance.pk)
def test_get_queryset_ordering(self):
"""
BaseGenericInlineFormSet.get_queryset() adds default ordering, if
needed.
"""
inline_formset = generic_inlineformset_factory(TaggedItem, exclude=('tag',))
formset = inline_formset(instance=Gecko.objects.create())
self.assertIs(formset.get_queryset().ordered, True)
def test_initial(self):
quartz = Mineral.objects.create(name='Quartz', hardness=7)
GenericFormSet = generic_inlineformset_factory(TaggedItem, extra=1)
ctype = ContentType.objects.get_for_model(quartz)
initial_data = [{
'tag': 'lizard',
'content_type': ctype.pk,
'object_id': quartz.pk,
}]
formset = GenericFormSet(initial=initial_data)
self.assertEqual(formset.forms[0].initial, initial_data[0])
def test_meta_widgets(self):
"""TaggedItemForm has a widget defined in Meta."""
Formset = generic_inlineformset_factory(TaggedItem, TaggedItemForm)
form = Formset().forms[0]
self.assertIsInstance(form['tag'].field.widget, CustomWidget)
@isolate_apps('generic_relations')
def test_incorrect_content_type(self):
class BadModel(models.Model):
content_type = models.PositiveIntegerField()
msg = "fk_name 'generic_relations.BadModel.content_type' is not a ForeignKey to ContentType"
with self.assertRaisesMessage(Exception, msg):
generic_inlineformset_factory(BadModel, TaggedItemForm)
def test_save_new_uses_form_save(self):
class SaveTestForm(forms.ModelForm):
def save(self, *args, **kwargs):
self.instance.saved_by = 'custom method'
return super().save(*args, **kwargs)
Formset = generic_inlineformset_factory(ForProxyModelModel, fields='__all__', form=SaveTestForm)
instance = ProxyRelatedModel.objects.create()
data = {
'form-TOTAL_FORMS': '1',
'form-INITIAL_FORMS': '0',
'form-MAX_NUM_FORMS': '',
'form-0-title': 'foo',
}
formset = Formset(data, instance=instance, prefix='form')
self.assertTrue(formset.is_valid())
new_obj = formset.save()[0]
self.assertEqual(new_obj.saved_by, 'custom method')
def test_save_new_for_proxy(self):
Formset = generic_inlineformset_factory(ForProxyModelModel, fields='__all__', for_concrete_model=False)
instance = ProxyRelatedModel.objects.create()
data = {
'form-TOTAL_FORMS': '1',
'form-INITIAL_FORMS': '0',
'form-MAX_NUM_FORMS': '',
'form-0-title': 'foo',
}
formset = Formset(data, instance=instance, prefix='form')
self.assertTrue(formset.is_valid())
new_obj, = formset.save()
self.assertEqual(new_obj.obj, instance)
def test_save_new_for_concrete(self):
Formset = generic_inlineformset_factory(ForProxyModelModel, fields='__all__', for_concrete_model=True)
instance = ProxyRelatedModel.objects.create()
data = {
'form-TOTAL_FORMS': '1',
'form-INITIAL_FORMS': '0',
'form-MAX_NUM_FORMS': '',
'form-0-title': 'foo',
}
formset = Formset(data, instance=instance, prefix='form')
self.assertTrue(formset.is_valid())
new_obj, = formset.save()
self.assertNotIsInstance(new_obj.obj, ProxyRelatedModel)
def test_initial_count(self):
GenericFormSet = generic_inlineformset_factory(TaggedItem)
data = {
'form-TOTAL_FORMS': '3',
'form-INITIAL_FORMS': '3',
'form-MAX_NUM_FORMS': '',
}
formset = GenericFormSet(data=data, prefix='form')
self.assertEqual(formset.initial_form_count(), 3)
formset = GenericFormSet(data=data, prefix='form', save_as_new=True)
self.assertEqual(formset.initial_form_count(), 0)
def test_save_as_new(self):
"""
The save_as_new parameter creates new items that are associated with
the object.
"""
lion = Animal.objects.create(common_name='Lion', latin_name='Panthera leo')
yellow = lion.tags.create(tag='yellow')
hairy = lion.tags.create(tag='hairy')
GenericFormSet = generic_inlineformset_factory(TaggedItem)
data = {
'form-TOTAL_FORMS': '3',
'form-INITIAL_FORMS': '2',
'form-MAX_NUM_FORMS': '',
'form-0-id': str(yellow.pk),
'form-0-tag': 'hunts',
'form-1-id': str(hairy.pk),
'form-1-tag': 'roars',
}
formset = GenericFormSet(data, instance=lion, prefix='form', save_as_new=True)
self.assertTrue(formset.is_valid())
tags = formset.save()
self.assertEqual([tag.tag for tag in tags], ['hunts', 'roars'])
hunts, roars = tags
self.assertSequenceEqual(lion.tags.order_by('tag'), [hairy, hunts, roars, yellow])
def test_absolute_max(self):
GenericFormSet = generic_inlineformset_factory(TaggedItem, absolute_max=1500)
data = {
'form-TOTAL_FORMS': '1501',
'form-INITIAL_FORMS': '0',
'form-MAX_NUM_FORMS': '0',
}
formset = GenericFormSet(data=data, prefix='form')
self.assertIs(formset.is_valid(), False)
self.assertEqual(len(formset.forms), 1500)
self.assertEqual(
formset.non_form_errors(),
['Please submit at most 1000 forms.'],
)
def test_absolute_max_with_max_num(self):
GenericFormSet = generic_inlineformset_factory(
TaggedItem,
max_num=20,
absolute_max=100,
)
data = {
'form-TOTAL_FORMS': '101',
'form-INITIAL_FORMS': '0',
'form-MAX_NUM_FORMS': '0',
}
formset = GenericFormSet(data=data, prefix='form')
self.assertIs(formset.is_valid(), False)
self.assertEqual(len(formset.forms), 100)
self.assertEqual(
formset.non_form_errors(),
['Please submit at most 20 forms.'],
)
def test_can_delete_extra(self):
GenericFormSet = generic_inlineformset_factory(
TaggedItem,
can_delete=True,
can_delete_extra=True,
extra=2,
)
formset = GenericFormSet()
self.assertEqual(len(formset), 2)
self.assertIn('DELETE', formset.forms[0].fields)
self.assertIn('DELETE', formset.forms[1].fields)
def test_disable_delete_extra(self):
GenericFormSet = generic_inlineformset_factory(
TaggedItem,
can_delete=True,
can_delete_extra=False,
extra=2,
)
formset = GenericFormSet()
self.assertEqual(len(formset), 2)
self.assertNotIn('DELETE', formset.forms[0].fields)
self.assertNotIn('DELETE', formset.forms[1].fields)
|
