select DATE_FORMAT(created_at, '%Y-%m-%d') AS date,count(1) AS count from skins_logs where skins_id=1127 and created_at BETWEEN "2023-02-22 00:00:00" AND "2023-02-27 23:59:59" group by DATE_FORMAT(created_at, '%Y-%m-%d'); 这个sql语句变成python的orm语句
时间: 2024-03-13 16:45:13 浏览: 176
假设您使用的是Django ORM,下面是将该SQL查询转换为Django ORM的代码示例:
```python
from django.db.models.functions import TruncDate
from django.db.models import Count
from datetime import datetime
start_date = datetime(2023, 2, 22)
end_date = datetime(2023, 2, 27, 23, 59, 59)
result = (
SkinLogs.objects
.filter(skins_id=1127, created_at__range=(start_date, end_date))
.annotate(date=TruncDate('created_at'))
.values('date')
.annotate(count=Count('id'))
.values('date', 'count')
)
```
其中,`SkinLogs`是您的模型类名,`skins_id`和`created_at`是该模型中的字段名。`TruncDate`用于将`created_at`字段截断为日期,`Count`用于计算每天的数量。最后,`.values`用于指定要选择的字段,以及它们的别名。
请根据您的具体代码进行必要的更改。
相关问题
WITH RECURSIVE dates AS ( SELECT "2021-12-01" AS date UNION ALL SELECT date + INTERVAL 1 DAY FROM dates WHERE date < "2023-03-27" ) SELECT DATE_FORMAT(dates.date, '%Y-%m-%d') AS date, IFNULL(COUNT(skins_logs.created_at), 0) AS count FROM dates LEFT JOIN skins_logs ON DATE(skins_logs.created_at) = dates.date AND skins_logs.skins_id = 481 WHERE dates.date BETWEEN "2021-12-01" AND "2023-03-27" GROUP BY dates.date;
如果您使用Flask和SQLAlchemy,可以使用以下代码将该查询转换为SQLAlchemy的查询:
```python
from datetime import datetime, timedelta
from sqlalchemy import func
from yourapp import db
class SkinLog(db.Model):
__tablename__ = 'skins_logs'
id = db.Column(db.Integer, primary_key=True)
skins_id = db.Column(db.Integer, nullable=False)
created_at = db.Column(db.DateTime, default=datetime.utcnow, nullable=False)
start_date = datetime(2021, 12, 1).date()
end_date = datetime(2023, 3, 27).date()
dates = db.session.query(
func.date_union(start_date, end_date, interval=1),
func.date_format(func.date_union(start_date, end_date, interval=1), '%Y-%m-%d')
).subquery()
counts = db.session.query(
dates.c.date.label('date'),
func.ifnull(func.count(SkinLog.created_at), 0).label('count')
).outerjoin(
SkinLog,
func.date(SkinLog.created_at) == dates.c.date,
).filter(
SkinLog.skins_id == 481,
dates.c.date.between(start_date, end_date),
).group_by(
dates.c.date
).all()
```
这里首先定义了SkinLog模型类来映射skins_logs表。然后根据查询语句中的日期序列生成方式,使用SQLAlchemy的date_union函数生成日期序列。然后将日期序列与SkinLog表进行左连接,并按日期分组计算每个日期在SkinLog表中的记录数。最后使用filter来过滤出与skins_id为481相关的记录,并在查询结果中使用ifnull函数将没有记录的日期的记录数设置为0。最后使用all方法执行查询并返回结果。
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