From 3b5083bee5e96539dec599106aece9889e70ce05 Mon Sep 17 00:00:00 2001 From: Claude Paroz Date: Sat, 26 May 2012 11:43:37 +0200 Subject: [PATCH] Fixed #5423 -- Made dumpdata output one row at a time. This should prevent storing all rows in memory when big sets of data are dumped. See ticket for heroic contributors. --- django/core/management/base.py | 14 +++++----- django/core/management/commands/dumpdata.py | 30 ++++++++++++--------- django/core/serializers/base.py | 3 +++ django/core/serializers/json.py | 29 ++++++++++++++++++-- django/core/serializers/python.py | 13 +++++---- tests/modeltests/fixtures/tests.py | 26 +++++++++--------- 6 files changed, 75 insertions(+), 40 deletions(-) diff --git a/django/core/management/base.py b/django/core/management/base.py index 16feb91f49..6e06991bf0 100644 --- a/django/core/management/base.py +++ b/django/core/management/base.py @@ -49,23 +49,23 @@ class OutputWrapper(object): """ Wrapper around stdout/stderr """ - def __init__(self, out, style_func=None): + def __init__(self, out, style_func=None, ending='\n'): self._out = out self.style_func = None if hasattr(out, 'isatty') and out.isatty(): self.style_func = style_func + self.ending = ending def __getattr__(self, name): return getattr(self._out, name) - def write(self, msg, style_func=None, ending='\n'): + def write(self, msg, style_func=None, ending=None): + ending = ending is None and self.ending or ending if ending and not msg.endswith(ending): msg += ending - if style_func is not None: - msg = style_func(msg) - elif self.style_func is not None: - msg = self.style_func(msg) - self._out.write(smart_str(msg)) + style_func = [f for f in (style_func, self.style_func, lambda x:x) + if f is not None][0] + self._out.write(smart_str(style_func(msg))) class BaseCommand(object): diff --git a/django/core/management/commands/dumpdata.py b/django/core/management/commands/dumpdata.py index 87b100b44d..b1a46cec3c 100644 --- a/django/core/management/commands/dumpdata.py +++ b/django/core/management/commands/dumpdata.py @@ -4,6 +4,7 @@ from django.core import serializers from django.db import router, DEFAULT_DB_ALIAS from django.utils.datastructures import SortedDict +import sys from optparse import make_option class Command(BaseCommand): @@ -97,21 +98,24 @@ class Command(BaseCommand): except KeyError: raise CommandError("Unknown serialization format: %s" % format) - # Now collate the objects to be serialized. - objects = [] - for model in sort_dependencies(app_list.items()): - if model in excluded_models: - continue - if not model._meta.proxy and router.allow_syncdb(using, model): - if use_base_manager: - objects.extend(model._base_manager.using(using).all()) - else: - objects.extend(model._default_manager.using(using).all()) + def get_objects(): + # Collate the objects to be serialized. + for model in sort_dependencies(app_list.items()): + if model in excluded_models: + continue + if not model._meta.proxy and router.allow_syncdb(using, model): + if use_base_manager: + objects = model._base_manager + else: + objects = model._default_manager + for obj in objects.using(using).\ + order_by(model._meta.pk.name).iterator(): + yield obj try: - self.stdout.write(serializers.serialize(format, objects, - indent=indent, use_natural_keys=use_natural_keys), - ending='') + self.stdout.ending = None + serializers.serialize(format, get_objects(), indent=indent, + use_natural_keys=use_natural_keys, stream=self.stdout) except Exception as e: if show_traceback: raise diff --git a/django/core/serializers/base.py b/django/core/serializers/base.py index 2e6a0656b1..04053c1f8f 100644 --- a/django/core/serializers/base.py +++ b/django/core/serializers/base.py @@ -39,6 +39,7 @@ class Serializer(object): self.use_natural_keys = options.pop("use_natural_keys", False) self.start_serialization() + self.first = True for obj in queryset: self.start_object(obj) # Use the concrete parent class' _meta instead of the object's _meta @@ -57,6 +58,8 @@ class Serializer(object): if self.selected_fields is None or field.attname in self.selected_fields: self.handle_m2m_field(obj, field) self.end_object(obj) + if self.first: + self.first = False self.end_serialization() return self.getvalue() diff --git a/django/core/serializers/json.py b/django/core/serializers/json.py index 4da8581f68..fce00600f4 100644 --- a/django/core/serializers/json.py +++ b/django/core/serializers/json.py @@ -21,13 +21,38 @@ class Serializer(PythonSerializer): """ internal_use_only = False - def end_serialization(self): + def start_serialization(self): if json.__version__.split('.') >= ['2', '1', '3']: # Use JS strings to represent Python Decimal instances (ticket #16850) self.options.update({'use_decimal': False}) - json.dump(self.objects, self.stream, cls=DjangoJSONEncoder, **self.options) + self._current = None + self.json_kwargs = self.options.copy() + self.json_kwargs.pop('stream', None) + self.json_kwargs.pop('fields', None) + self.stream.write("[") + + def end_serialization(self): + if self.options.get("indent"): + self.stream.write("\n") + self.stream.write("]") + if self.options.get("indent"): + self.stream.write("\n") + + def end_object(self, obj): + # self._current has the field data + indent = self.options.get("indent") + if not self.first: + self.stream.write(",") + if not indent: + self.stream.write(" ") + if indent: + self.stream.write("\n") + json.dump(self.get_dump_object(obj), self.stream, + cls=DjangoJSONEncoder, **self.json_kwargs) + self._current = None def getvalue(self): + # overwrite PythonSerializer.getvalue() with base Serializer.getvalue() if callable(getattr(self.stream, 'getvalue', None)): return self.stream.getvalue() diff --git a/django/core/serializers/python.py b/django/core/serializers/python.py index 195bf11d24..49120434eb 100644 --- a/django/core/serializers/python.py +++ b/django/core/serializers/python.py @@ -27,13 +27,16 @@ class Serializer(base.Serializer): self._current = {} def end_object(self, obj): - self.objects.append({ - "model" : smart_unicode(obj._meta), - "pk" : smart_unicode(obj._get_pk_val(), strings_only=True), - "fields" : self._current - }) + self.objects.append(self.get_dump_object(obj)) self._current = None + def get_dump_object(self, obj): + return { + "pk": smart_unicode(obj._get_pk_val(), strings_only=True), + "model": smart_unicode(obj._meta), + "fields": self._current + } + def handle_field(self, obj, field): value = field._get_val_from_obj(obj) # Protected types (i.e., primitives like None, numbers, dates, diff --git a/tests/modeltests/fixtures/tests.py b/tests/modeltests/fixtures/tests.py index d22010d7a0..48a5fe7f16 100644 --- a/tests/modeltests/fixtures/tests.py +++ b/tests/modeltests/fixtures/tests.py @@ -54,25 +54,25 @@ class FixtureLoadingTests(TestCase): ]) # Dump the current contents of the database as a JSON fixture - self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]') + self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]') # Try just dumping the contents of fixtures.Category self._dumpdata_assert(['fixtures.Category'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}]') # ...and just fixtures.Article - self._dumpdata_assert(['fixtures.Article'], '[{"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}]') + self._dumpdata_assert(['fixtures.Article'], '[{"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}]') # ...and both - self._dumpdata_assert(['fixtures.Category', 'fixtures.Article'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}]') + self._dumpdata_assert(['fixtures.Category', 'fixtures.Article'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}]') # Specify a specific model twice - self._dumpdata_assert(['fixtures.Article', 'fixtures.Article'], '[{"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}]') + self._dumpdata_assert(['fixtures.Article', 'fixtures.Article'], '[{"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}]') # Specify a dump that specifies Article both explicitly and implicitly - self._dumpdata_assert(['fixtures.Article', 'fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]') + self._dumpdata_assert(['fixtures.Article', 'fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]') # Same again, but specify in the reverse order - self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]') + self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]') # Specify one model from one application, and an entire other application. self._dumpdata_assert(['fixtures.Category', 'sites'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 1, "model": "sites.site", "fields": {"domain": "example.com", "name": "example.com"}}]') @@ -143,17 +143,17 @@ class FixtureLoadingTests(TestCase): ]) # By default, you get raw keys on dumpdata - self._dumpdata_assert(['fixtures.book'], '[{"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}, {"pk": 1, "model": "fixtures.book", "fields": {"name": "Music for all ages", "authors": [3, 1]}}]') + self._dumpdata_assert(['fixtures.book'], '[{"pk": 1, "model": "fixtures.book", "fields": {"name": "Music for all ages", "authors": [3, 1]}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]') # But you can get natural keys if you ask for them and they are available - self._dumpdata_assert(['fixtures.book'], '[{"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}, {"pk": 1, "model": "fixtures.book", "fields": {"name": "Music for all ages", "authors": [["Artist formerly known as \\"Prince\\""], ["Django Reinhardt"]]}}]', natural_keys=True) + self._dumpdata_assert(['fixtures.book'], '[{"pk": 1, "model": "fixtures.book", "fields": {"name": "Music for all ages", "authors": [["Artist formerly known as \\"Prince\\""], ["Django Reinhardt"]]}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]', natural_keys=True) # Dump the current contents of the database as a JSON fixture - self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 5, "model": "fixtures.article", "fields": {"headline": "XML identified as leading cause of cancer", "pub_date": "2006-06-16T16:00:00"}}, {"pk": 4, "model": "fixtures.article", "fields": {"headline": "Django conquers world!", "pub_date": "2006-06-16T15:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Copyright is fine the way it is", "pub_date": "2006-06-16T14:00:00"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker on TV is great!", "pub_date": "2006-06-16T11:00:00"}}, {"pk": 1, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "copyright", "tagged_id": 3}}, {"pk": 2, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "legal", "tagged_id": 3}}, {"pk": 3, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "django", "tagged_id": 4}}, {"pk": 4, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "world domination", "tagged_id": 4}}, {"pk": 3, "model": "fixtures.person", "fields": {"name": "Artist formerly known as \\"Prince\\""}}, {"pk": 1, "model": "fixtures.person", "fields": {"name": "Django Reinhardt"}}, {"pk": 2, "model": "fixtures.person", "fields": {"name": "Stephane Grappelli"}}, {"pk": 1, "model": "fixtures.visa", "fields": {"person": ["Django Reinhardt"], "permissions": [["add_user", "auth", "user"], ["change_user", "auth", "user"], ["delete_user", "auth", "user"]]}}, {"pk": 2, "model": "fixtures.visa", "fields": {"person": ["Stephane Grappelli"], "permissions": [["add_user", "auth", "user"], ["delete_user", "auth", "user"]]}}, {"pk": 3, "model": "fixtures.visa", "fields": {"person": ["Artist formerly known as \\"Prince\\""], "permissions": [["change_user", "auth", "user"]]}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}, {"pk": 1, "model": "fixtures.book", "fields": {"name": "Music for all ages", "authors": [["Artist formerly known as \\"Prince\\""], ["Django Reinhardt"]]}}]', natural_keys=True) + self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker on TV is great!", "pub_date": "2006-06-16T11:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Copyright is fine the way it is", "pub_date": "2006-06-16T14:00:00"}}, {"pk": 4, "model": "fixtures.article", "fields": {"headline": "Django conquers world!", "pub_date": "2006-06-16T15:00:00"}}, {"pk": 5, "model": "fixtures.article", "fields": {"headline": "XML identified as leading cause of cancer", "pub_date": "2006-06-16T16:00:00"}}, {"pk": 1, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "copyright", "tagged_id": 3}}, {"pk": 2, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "legal", "tagged_id": 3}}, {"pk": 3, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "django", "tagged_id": 4}}, {"pk": 4, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "world domination", "tagged_id": 4}}, {"pk": 1, "model": "fixtures.person", "fields": {"name": "Django Reinhardt"}}, {"pk": 2, "model": "fixtures.person", "fields": {"name": "Stephane Grappelli"}}, {"pk": 3, "model": "fixtures.person", "fields": {"name": "Artist formerly known as \\"Prince\\""}}, {"pk": 1, "model": "fixtures.visa", "fields": {"person": ["Django Reinhardt"], "permissions": [["add_user", "auth", "user"], ["change_user", "auth", "user"], ["delete_user", "auth", "user"]]}}, {"pk": 2, "model": "fixtures.visa", "fields": {"person": ["Stephane Grappelli"], "permissions": [["add_user", "auth", "user"], ["delete_user", "auth", "user"]]}}, {"pk": 3, "model": "fixtures.visa", "fields": {"person": ["Artist formerly known as \\"Prince\\""], "permissions": [["change_user", "auth", "user"]]}}, {"pk": 1, "model": "fixtures.book", "fields": {"name": "Music for all ages", "authors": [["Artist formerly known as \\"Prince\\""], ["Django Reinhardt"]]}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]', natural_keys=True) # Dump the current contents of the database as an XML fixture self._dumpdata_assert(['fixtures'], """ -News StoriesLatest news storiesXML identified as leading cause of cancer2006-06-16T16:00:00Django conquers world!2006-06-16T15:00:00Copyright is fine the way it is2006-06-16T14:00:00Poker on TV is great!2006-06-16T11:00:00copyrightfixturesarticle3legalfixturesarticle3djangofixturesarticle4world dominationfixturesarticle4Artist formerly known as "Prince"Django ReinhardtStephane GrappelliDjango Reinhardtadd_userauthuserchange_userauthuserdelete_userauthuserStephane Grappelliadd_userauthuserdelete_userauthuserArtist formerly known as "Prince"change_userauthuserAchieving self-awareness of Python programsMusic for all agesArtist formerly known as "Prince"Django Reinhardt""", format='xml', natural_keys=True) +News StoriesLatest news storiesPoker on TV is great!2006-06-16T11:00:00Copyright is fine the way it is2006-06-16T14:00:00Django conquers world!2006-06-16T15:00:00XML identified as leading cause of cancer2006-06-16T16:00:00copyrightfixturesarticle3legalfixturesarticle3djangofixturesarticle4world dominationfixturesarticle4Django ReinhardtStephane GrappelliArtist formerly known as "Prince"Django Reinhardtadd_userauthuserchange_userauthuserdelete_userauthuserStephane Grappelliadd_userauthuserdelete_userauthuserArtist formerly known as "Prince"change_userauthuserMusic for all agesArtist formerly known as "Prince"Django ReinhardtAchieving self-awareness of Python programs""", format='xml', natural_keys=True) def test_dumpdata_with_excludes(self): # Load fixture1 which has a site, two articles, and a category @@ -292,11 +292,11 @@ class FixtureLoadingTests(TestCase): ]) # Dump the current contents of the database as a JSON fixture - self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 1, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "copyright", "tagged_id": 3}}, {"pk": 2, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "law", "tagged_id": 3}}, {"pk": 1, "model": "fixtures.person", "fields": {"name": "Django Reinhardt"}}, {"pk": 3, "model": "fixtures.person", "fields": {"name": "Prince"}}, {"pk": 2, "model": "fixtures.person", "fields": {"name": "Stephane Grappelli"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]', natural_keys=True) + self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 1, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "copyright", "tagged_id": 3}}, {"pk": 2, "model": "fixtures.tag", "fields": {"tagged_type": ["fixtures", "article"], "name": "law", "tagged_id": 3}}, {"pk": 1, "model": "fixtures.person", "fields": {"name": "Django Reinhardt"}}, {"pk": 2, "model": "fixtures.person", "fields": {"name": "Stephane Grappelli"}}, {"pk": 3, "model": "fixtures.person", "fields": {"name": "Prince"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]', natural_keys=True) # Dump the current contents of the database as an XML fixture self._dumpdata_assert(['fixtures'], """ -News StoriesLatest news storiesTime to reform copyright2006-06-16T13:00:00Poker has no place on ESPN2006-06-16T12:00:00copyrightfixturesarticle3lawfixturesarticle3Django ReinhardtPrinceStephane GrappelliAchieving self-awareness of Python programs""", format='xml', natural_keys=True) +News StoriesLatest news storiesPoker has no place on ESPN2006-06-16T12:00:00Time to reform copyright2006-06-16T13:00:00copyrightfixturesarticle3lawfixturesarticle3Django ReinhardtStephane GrappelliPrinceAchieving self-awareness of Python programs""", format='xml', natural_keys=True) class FixtureTransactionTests(TransactionTestCase): def _dumpdata_assert(self, args, output, format='json'): @@ -329,7 +329,7 @@ class FixtureTransactionTests(TransactionTestCase): ]) # Dump the current contents of the database as a JSON fixture - self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]') + self._dumpdata_assert(['fixtures'], '[{"pk": 1, "model": "fixtures.category", "fields": {"description": "Latest news stories", "title": "News Stories"}}, {"pk": 2, "model": "fixtures.article", "fields": {"headline": "Poker has no place on ESPN", "pub_date": "2006-06-16T12:00:00"}}, {"pk": 3, "model": "fixtures.article", "fields": {"headline": "Time to reform copyright", "pub_date": "2006-06-16T13:00:00"}}, {"pk": 10, "model": "fixtures.book", "fields": {"name": "Achieving self-awareness of Python programs", "authors": []}}]') # Load fixture 4 (compressed), using format discovery management.call_command('loaddata', 'fixture4', verbosity=0, commit=False)