Peewee also has a bulk_update() method to help update multiple model instance in a single query operation. The method requires model objects to be updated and list of fields to be updated.Following example updates the age field of specified rows by new value....
Model.update() Model.insert() Model.insert_many() Model.insert_from() Model.replace() Model.replace_many() Model.raw() Model.delete() Model.create() Model.bulk_create() Model.bulk_update() Model.get() Model.get_or_none() Model.get_by_id() Model.set_by_id() Model.delete_by_id...
发现stackoverflow（ https://stackoverflow.com/questions/26133977/laravel-bulk-update ）上已经有人写...
peewee Peewee is a simple and small ORM. It has few (but expressive) concepts, making it easy to learn and intuitive to use. a small, expressive ORM python 2.7+ and 3.4+ supports sqlite, mysql, mariadb, postgresql.
bulk_update()和bulk_create类似,可以用来插入没有保存的数据库实例,自动添加了一个事务,然后一条条的插入 # List of row data to insert. row_data = [{'username': 'u1'}, {'username': 'u2'}, ...] # Assume there are 789 items in row_data. The following code will result in ...
bulk_update() 和bulk_create类似,可以用来插入没有保存的数据库实例,自动添加了一个事务,然后一条条的插入# List of row data to insert. row_data = [{'username': 'u1'}, {'username': 'u2'}, ...] # Assume there are 789 items in row_data. The following code will result in # 8 total...
bulk_update() 没有试。 with database.atomic(): User.bulk_update(list_of_users, fields=[`username`], batch_size=50) 2.删除记录2.1 delete_instance()删除一个实例,在实例后调用。watalo = User.get(User.name == 'watalo') watalo.delete_instance() 2.2...
5、bulk_create 语法: bulk_create(model_list, batch_size=None) 1. 参数: model_list (iterable):未保存的模型实例的列表或其他可迭代对象。 batch_size (int):每次批量插入的行数。如果未指定,则一次性全部插入。 示例: 简单来说,insert_many使用字典或元组列表作为参数,而model_list使用模型实例列表作为参...
5、bulk_create 语法: 参数: model_list (iterable):未保存的模型实例的列表或其他可迭代对象。 batch_size (int):每次批量插入的行数。如果未指定,则一次性全部插入。 示例: 简单来说, 使用字典或元组列表作为参数,而 使用模型实例列表作为参数,就这区别。
Theinsert_manymethod allows to do bulk creates. insert_many.py #!/usr/bin/python import peewee import datetime db = peewee.SqliteDatabase('test.db') class Note(peewee.Model): text = peewee.CharField() created = peewee.DateField(default=datetime.date.today) ...