flaschengeist/flaschengeist/database.py

34 lines
839 B
Python

from flask_sqlalchemy import SQLAlchemy
from sqlalchemy import MetaData
# https://alembic.sqlalchemy.org/en/latest/naming.html
metadata = MetaData(
naming_convention={
"pk": "pk_%(table_name)s",
"ix": "ix_%(table_name)s_%(column_0_name)s",
"uq": "uq_%(table_name)s_%(column_0_name)s",
"ck": "ck_%(table_name)s_%(constraint_name)s",
"fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
}
)
db = SQLAlchemy(metadata=metadata)
def case_sensitive(s):
"""
Compare string as case sensitive on the database
Args:
s: string to compare
Example:
User.query.filter(User.name == case_sensitive(some_string))
"""
if db.session.bind.dialect.name == "mysql":
from sqlalchemy import func
return func.binary(s)
return s