Hi,
I've created the following utcnow function as described here:
http://docs.sqlalchemy.org/en/latest/core/compiler.html?highlight=utc#utc-timestamp-function
from sqlalchemy.ext.compiler import compiles
from sqlalchemy.sql import expression
from sqlalchemy.types import DateTime, String
class utcnow(expression.FunctionElement):
"""A custom SQLAlchemy function that returns the current UTC time"""
type = DateTime()
@compiles(utcnow, 'postgresql')
def pg_utcnow(element, compiler, **kw):
"""Adds a postgres implementation of UTC now function
"""
return "TIMEZONE('utc', CURRENT_TIMESTAMP)"
Whenever I run db.session.execute(utcnow()), I'm getting the exact same
date:
In [12]: db.session.execute(custom_functions.utcnow()).scalar()
Out[12]: datetime.datetime(2018, 3, 28, 18, 28, 49, 879360)
In [13]: db.session.execute(custom_functions.utcnow()).scalar()
Out[13]: datetime.datetime(2018, 3, 28, 18, 28, 49, 879360)
...
I guess its something trivial that I'm doing wrong. any ideas?
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