Refs #7742 -- Got bug639 regression tests using newforms instead of oldforms.

from django.db import models

from django.core.files.storage import FileSystemStorage

from django.forms import ModelForm

temp_storage = FileSystemStorage(tempfile.gettempdir())

    title = models.CharField(max_length=30)

    image = models.FileField(storage=temp_storage, upload_to='tests')

    # Support code for the tests; this keeps track of how many times save() gets

    # called on each instance.

    # Support code for the tests; this keeps track of how many times save()

    # gets called on each instance.

    def __init__(self, *args, **kwargs):

        super(Photo, self).__init__(*args, **kwargs)

        self._savecount = 0

    def save(self):

        super(Photo, self).save()

        self._savecount += 1

class PhotoForm(ModelForm):

    class Meta:

        model = Photo

"""

Tests for file field behavior, and specifically #639, in which Model.save() gets

called *again* for each FileField. This test will fail if calling an

auto-manipulator's save() method causes Model.save() to be called more than once.

Tests for file field behavior, and specifically #639, in which Model.save()

gets called *again* for each FileField. This test will fail if calling a

ModelForm's save() method causes Model.save() to be called more than once.

"""

import os

import unittest

from regressiontests.bug639.models import Photo

from django.http import QueryDict

from django.utils.datastructures import MultiValueDict

from django.core.files.uploadedfile import SimpleUploadedFile

from regressiontests.bug639.models import Photo, PhotoForm

class Bug639Test(unittest.TestCase):

    def testBug639(self):

        """

        Simulate a file upload and check how many times Model.save() gets called.

        Simulate a file upload and check how many times Model.save() gets

        called.

        """

        # Grab an image for testing

        img = open(os.path.join(os.path.dirname(__file__), "test.jpg"), "rb").read()

        # Grab an image for testing.

        filename = os.path.join(os.path.dirname(__file__), "test.jpg")

        img = open(filename, "rb").read()

        # Fake a request query dict with the file

        qd = QueryDict("title=Testing&image=", mutable=True)

        qd["image_file"] = SimpleUploadedFile('test.jpg', img, 'image/jpeg')

        # Fake a POST QueryDict and FILES MultiValueDict.

        data = {'title': 'Testing'}

        files = {"image": SimpleUploadedFile('test.jpg', img, 'image/jpeg')}

        manip = Photo.AddManipulator()

        manip.do_html2python(qd)

        p = manip.save(qd)

        form = PhotoForm(data=data, files=files)

        p = form.save()

        # Check the savecount stored on the object (see the model)

        # Check the savecount stored on the object (see the model).

        self.assertEqual(p._savecount, 1)

    def tearDown(self):