leancloud-better-storage-python
better leancloud storage wrapper. Simple and lightweight.
Installation
install by easy_install or pip.
$ pip install leancloud-better-storage
Quick start
Model declaration and query just like SQLAlchemy, see example below.
Model declaration
from leancloud_better_storage.storage.models import Model
from leancloud_better_storage.storage.fields import Field
class Product(Model):
name = Field('product_name', nullable=False)
price = Field(nullable=False)
field3 = Field(nullable=False, default=1)
field4 = Field()CRUD operations
Create
product = Product.create(name='FirstProduct',price=100)
product.commit()
# v0.1.3 now default null value
assert product.field4 is NoneRead & Query
# find by simple equation
products = Product.query().filter_by(name='product').find()
# support >,<,>=,<=,==.but not support compare to another field.
products = Product.query().filter(Product.price < 10).find()
# support and_(), or_().
products = Product.query().filter(Product.created_at > datetime(2018,8,1)).and_() \
.filter(Product.created_at < datetime(2018,9,1)).find()
# find support limit and skip argument.
products = Product.query().order_by(Product.price.desc).find(limit=10)
# also support pagination, start from page 0 and 10 elements per page.
pages = Product.query().paginate(0, 10)
for page in pages:
print(page.items) # access elementsUpdate
product = Product.query().filter_by(name='FirstProduct').first()
product.name = 'LastProduct'
product.commit()Delete
product = Product.query().filter_by(name='FirstProduct').first()
product.drop()Update log
- 0.1.7 修复初始值 null 覆盖了存储服务生成字段值的问题。
