本文整理汇总了Python中google.appengine.ext.db.BlobProperty方法的典型用法代码示例。如果您正苦于以下问题：Python db.BlobProperty方法的具体用法？Python db.BlobProperty怎么用？Python db.BlobProperty使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类google.appengine.ext.db的用法示例。
在下文中一共展示了db.BlobProperty方法的4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，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: convert_BlobProperty
# 需要导入模块: from google.appengine.ext import db [as 别名]
# 或者: from google.appengine.ext.db import BlobProperty [as 别名]
def convert_BlobProperty(model, prop, kwargs):
"""Returns a form field for a ``db.BlobProperty``."""
return f.FileField(**kwargs) 示例2: __init__
# 需要导入模块: from google.appengine.ext import db [as 别名]
# 或者: from google.appengine.ext.db import BlobProperty [as 别名]
def __init__(self, *args, **kwargs):
super(BlobProperty, self).__init__(*args, **kwargs)
self.form_value = None 示例3: get_form_field
# 需要导入模块: from google.appengine.ext import db [as 别名]
# 或者: from google.appengine.ext.db import BlobProperty [as 别名]
def get_form_field(self, **kwargs):
"""Return a Django form field appropriate for a blob property.
This defaults to a forms.FileField instance when using Django 0.97
or later. For 0.96 this returns None, as file uploads are not
really supported in that version.
"""
if not hasattr(forms, 'FileField'):
return None
defaults = {'form_class': forms.FileField}
defaults.update(kwargs)
return super(BlobProperty, self).get_form_field(**defaults) 示例4: make_value_from_form
# 需要导入模块: from google.appengine.ext import db [as 别名]
# 或者: from google.appengine.ext.db import BlobProperty [as 别名]
def make_value_from_form(self, value):
"""Convert a form value to a property value.
This extracts the content from the UploadedFile instance returned
by the FileField instance.
"""
if have_uploadedfile and isinstance(value, uploadedfile.UploadedFile):
if not self.form_value:
self.form_value = value.read()
b = db.Blob(self.form_value)
return b
return super(BlobProperty, self).make_value_from_form(value)