本文整理汇总了Python中mongoengine.python_support.b函数的典型用法代码示例。如果您正苦于以下问题：Python b函数的具体用法？Python b怎么用？Python b使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了b函数的11个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Python代码示例。
示例1: test_file_fields_set
def test_file_fields_set(self):
class SetFile(Document):
the_file = FileField()
text = b('Hello, World!')
more_text = b('Foo Bar')
SetFile.drop_collection()
setfile = SetFile()
setfile.the_file = text
setfile.save()
result = SetFile.objects.first()
self.assertTrue(setfile == result)
self.assertEqual(result.the_file.read(), text)
# Try replacing file with new one
result.the_file.replace(more_text)
result.save()
result = SetFile.objects.first()
self.assertTrue(setfile == result)
self.assertEqual(result.the_file.read(), more_text)
result.the_file.delete()
开发者ID:Demoncode，项目名称:mongoengine，代码行数:26，代码来源:file_tests.py
示例2: test_file_fields_stream
def test_file_fields_stream(self):
"""Ensure that file fields can be written to and their data retrieved
"""
class StreamFile(Document):
the_file = FileField()
StreamFile.drop_collection()
text = b('Hello, World!')
more_text = b('Foo Bar')
content_type = 'text/plain'
streamfile = StreamFile()
streamfile.the_file.new_file(content_type=content_type)
streamfile.the_file.write(text)
streamfile.the_file.write(more_text)
streamfile.the_file.close()
streamfile.save()
result = StreamFile.objects.first()
self.assertTrue(streamfile == result)
self.assertEqual(result.the_file.read(), text + more_text)
self.assertEqual(result.the_file.content_type, content_type)
result.the_file.seek(0)
self.assertEqual(result.the_file.tell(), 0)
self.assertEqual(result.the_file.read(len(text)), text)
self.assertEqual(result.the_file.tell(), len(text))
self.assertEqual(result.the_file.read(len(more_text)), more_text)
self.assertEqual(result.the_file.tell(), len(text + more_text))
result.the_file.delete()
# Ensure deleted file returns None
self.assertTrue(result.the_file.read() == None)
开发者ID:Demoncode，项目名称:mongoengine，代码行数:33，代码来源:file_tests.py
示例3: test_file_multidb
def test_file_multidb(self):
register_connection('test_files', 'test_files')
class TestFile(Document):
name = StringField()
the_file = FileField(db_alias="test_files",
collection_name="macumba")
TestFile.drop_collection()
# delete old filesystem
get_db("test_files").macumba.files.drop()
get_db("test_files").macumba.chunks.drop()
# First instance
test_file = TestFile()
test_file.name = "Hello, World!"
test_file.the_file.put(b('Hello, World!'),
name="hello.txt")
test_file.save()
data = get_db("test_files").macumba.files.find_one()
self.assertEqual(data.get('name'), 'hello.txt')
test_file = TestFile.objects.first()
self.assertEqual(test_file.the_file.read(),
b('Hello, World!'))
开发者ID:Demoncode，项目名称:mongoengine，代码行数:27，代码来源:file_tests.py
示例4: test_image_field
def test_image_field(self):
if not HAS_PIL:
raise SkipTest('PIL not installed')
class TestImage(Document):
image = ImageField()
TestImage.drop_collection()
with tempfile.TemporaryFile() as f:
f.write(b("Hello World!"))
f.flush()
t = TestImage()
try:
t.image.put(f)
self.fail("Should have raised an invalidation error")
except ValidationError as e:
self.assertEqual("%s" % e, "Invalid image: cannot identify image file %s" % f)
t = TestImage()
t.image.put(open(TEST_IMAGE_PATH, 'rb'))
t.save()
t = TestImage.objects.first()
self.assertEqual(t.image.format, 'PNG')
w, h = t.image.size
self.assertEqual(w, 371)
self.assertEqual(h, 76)
t.image.delete()
开发者ID:local-projects，项目名称:mongoengine，代码行数:33，代码来源:file_tests.py
示例5: test_file_field_no_default
def test_file_field_no_default(self):
class GridDocument(Document):
the_file = FileField()
GridDocument.drop_collection()
with tempfile.TemporaryFile() as f:
f.write(b("Hello World!"))
f.flush()
# Test without default
doc_a = GridDocument()
doc_a.save()
doc_b = GridDocument.objects.with_id(doc_a.id)
doc_b.the_file.replace(f, filename='doc_b')
doc_b.save()
self.assertNotEqual(doc_b.the_file.grid_id, None)
# Test it matches
doc_c = GridDocument.objects.with_id(doc_b.id)
self.assertEqual(doc_b.the_file.grid_id, doc_c.the_file.grid_id)
# Test with default
doc_d = GridDocument(the_file=b(''))
doc_d.save()
doc_e = GridDocument.objects.with_id(doc_d.id)
self.assertEqual(doc_d.the_file.grid_id, doc_e.the_file.grid_id)
doc_e.the_file.replace(f, filename='doc_e')
doc_e.save()
doc_f = GridDocument.objects.with_id(doc_e.id)
self.assertEqual(doc_e.the_file.grid_id, doc_f.the_file.grid_id)
db = GridDocument._get_db()
grid_fs = gridfs.GridFS(db)
self.assertEqual(['doc_b', 'doc_e'], grid_fs.list())
开发者ID:Demoncode，项目名称:mongoengine，代码行数:40，代码来源:file_tests.py
示例6: test_file_boolean
def test_file_boolean(self):
"""Ensure that a boolean test of a FileField indicates its presence
"""
class TestFile(Document):
the_file = FileField()
TestFile.drop_collection()
test_file = TestFile()
self.assertFalse(bool(test_file.the_file))
test_file.the_file.put(b('Hello, World!'), content_type='text/plain')
test_file.save()
self.assertTrue(bool(test_file.the_file))
test_file = TestFile.objects.first()
self.assertEqual(test_file.the_file.content_type, "text/plain")
开发者ID:Demoncode，项目名称:mongoengine，代码行数:15，代码来源:file_tests.py
示例7: test_copyable
def test_copyable(self):
class PutFile(Document):
the_file = FileField()
PutFile.drop_collection()
text = b('Hello, World!')
content_type = 'text/plain'
putfile = PutFile()
putfile.the_file.put(text, content_type=content_type)
putfile.save()
class TestFile(Document):
name = StringField()
self.assertEqual(putfile, copy.copy(putfile))
self.assertEqual(putfile, copy.deepcopy(putfile))
开发者ID:Demoncode，项目名称:mongoengine，代码行数:18，代码来源:file_tests.py
示例8: test_image_field
def test_image_field(self):
if not HAS_PIL:
raise SkipTest('PIL not installed')
class TestImage(Document):
image = ImageField()
TestImage.drop_collection()
with tempfile.TemporaryFile() as f:
f.write(b("Hello World!"))
f.flush()
t = TestImage()
try:
t.image.put(f)
self.fail("Should have raised an invalidation error")
except ValidationError, e:
self.assertEqual("%s" % e, "Invalid image: cannot identify image file %s" % f)
开发者ID:MasterMind2k，项目名称:mongoengine，代码行数:19，代码来源:file_tests.py
示例9: test_file_uniqueness
def test_file_uniqueness(self):
"""Ensure that each instance of a FileField is unique
"""
class TestFile(Document):
name = StringField()
the_file = FileField()
# First instance
test_file = TestFile()
test_file.name = "Hello, World!"
test_file.the_file.put(b('Hello, World!'))
test_file.save()
# Second instance
test_file_dupe = TestFile()
data = test_file_dupe.the_file.read() # Should be None
self.assertTrue(test_file.name != test_file_dupe.name)
self.assertTrue(test_file.the_file.read() != data)
TestFile.drop_collection()
开发者ID:Demoncode，项目名称:mongoengine，代码行数:21，代码来源:file_tests.py
示例10: test_file_fields
def test_file_fields(self):
"""Ensure that file fields can be written to and their data retrieved
"""
class PutFile(Document):
the_file = FileField()
PutFile.drop_collection()
text = b('Hello, World!')
content_type = 'text/plain'
putfile = PutFile()
putfile.the_file.put(text, content_type=content_type, filename="hello")
putfile.save()
result = PutFile.objects.first()
self.assertTrue(putfile == result)
self.assertEqual("%s" % result.the_file, "<GridFSProxy: hello>")
self.assertEqual(result.the_file.read(), text)
self.assertEqual(result.the_file.content_type, content_type)
result.the_file.delete() # Remove file from GridFS
PutFile.objects.delete()
# Ensure file-like objects are stored
PutFile.drop_collection()
putfile = PutFile()
putstring = StringIO()
putstring.write(text)
putstring.seek(0)
putfile.the_file.put(putstring, content_type=content_type)
putfile.save()
result = PutFile.objects.first()
self.assertTrue(putfile == result)
self.assertEqual(result.the_file.read(), text)
self.assertEqual(result.the_file.content_type, content_type)
result.the_file.delete()
开发者ID:MasterMind2k，项目名称:mongoengine，代码行数:39，代码来源:file_tests.py
示例11: test_file_disk_space
def test_file_disk_space(self):
""" Test disk space usage when we delete/replace a file """
class TestFile(Document):
the_file = FileField()
text = b('Hello, World!')
content_type = 'text/plain'
testfile = TestFile()
testfile.the_file.put(text, content_type=content_type, filename="hello")
testfile.save()
# Now check fs.files and fs.chunks
db = TestFile._get_db()
files = db.fs.files.find()
chunks = db.fs.chunks.find()
self.assertEquals(len(list(files)), 1)
self.assertEquals(len(list(chunks)), 1)
# Deleting the docoument should delete the files
testfile.delete()
files = db.fs.files.find()
chunks = db.fs.chunks.find()
self.assertEquals(len(list(files)), 0)
self.assertEquals(len(list(chunks)), 0)
# Test case where we don't store a file in the first place
testfile = TestFile()
testfile.save()
files = db.fs.files.find()
chunks = db.fs.chunks.find()
self.assertEquals(len(list(files)), 0)
self.assertEquals(len(list(chunks)), 0)
testfile.delete()
files = db.fs.files.find()
chunks = db.fs.chunks.find()
self.assertEquals(len(list(files)), 0)
self.assertEquals(len(list(chunks)), 0)
# Test case where we overwrite the file
testfile = TestFile()
testfile.the_file.put(text, content_type=content_type, filename="hello")
testfile.save()
text = b('Bonjour, World!')
testfile.the_file.replace(text, content_type=content_type, filename="hello")
testfile.save()
files = db.fs.files.find()
chunks = db.fs.chunks.find()
self.assertEquals(len(list(files)), 1)
self.assertEquals(len(list(chunks)), 1)
testfile.delete()
files = db.fs.files.find()
chunks = db.fs.chunks.find()
self.assertEquals(len(list(files)), 0)
self.assertEquals(len(list(chunks)), 0)
开发者ID:3lnc，项目名称:mongoengine，代码行数:64，代码来源:file_tests.py
注：本文中的mongoengine.python_support.b函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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