31 lines
835 B
Python
31 lines
835 B
Python
from collections.abc import Collection
|
|
|
|
import pandas as pd
|
|
|
|
from config.models import LightSensor, Participant
|
|
from setup import db_engine, session
|
|
|
|
|
|
def get_light_data(usernames: Collection) -> pd.DataFrame:
|
|
"""
|
|
Read the data from the light sensor table and return it in a dataframe.
|
|
|
|
Parameters
|
|
----------
|
|
usernames: Collection
|
|
A list of usernames to put into the WHERE condition.
|
|
|
|
Returns
|
|
-------
|
|
df_light: pd.DataFrame
|
|
A dataframe of light data.
|
|
"""
|
|
query_light = (
|
|
session.query(LightSensor, Participant.username)
|
|
.filter(Participant.id == LightSensor.participant_id)
|
|
.filter(Participant.username.in_(usernames))
|
|
)
|
|
with db_engine.connect() as connection:
|
|
df_light = pd.read_sql(query_light.statement, connection)
|
|
return df_light
|