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models.py
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models.py
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#
# Copyright © 2021 Uncharted Software Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import datetime
from sqlalchemy import (
Column,
DateTime,
String,
Integer,
ForeignKey,
Text,
Boolean,
Float,
)
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import create_engine, event, engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy.pool import StaticPool
Base = declarative_base()
@event.listens_for(engine.Engine, "connect")
def set_sqlite_pragma(dbapi_connection, connection_record):
cursor = dbapi_connection.cursor()
cursor.execute("PRAGMA journal_mode=WAL")
cursor.close()
def get_session(db_location):
# TODO: not disable check_same_thread
engine = create_engine(
"sqlite:///" + db_location,
connect_args={"check_same_thread": False},
poolclass=StaticPool,
)
session = sessionmaker()
session.configure(bind=engine)
return session()
def start_session(db_location):
# TODO: not disable_check_same_thread
engine = create_engine(
"sqlite:///" + db_location,
connect_args={"check_same_thread": False},
poolclass=StaticPool,
)
session = sessionmaker()
session.configure(bind=engine)
Base.metadata.create_all(engine)
return session()
class Searches(Base):
__tablename__ = "searches"
id = Column(String, primary_key=True)
created_at = Column(DateTime, default=datetime.datetime.utcnow)
started_at = Column(DateTime)
stopped_at = Column(DateTime)
running = Column(Boolean, default=False)
ended = Column(Boolean, default=False)
error = Column(String)
user_agent = Column(String)
api_version = Column(String)
problem = Column(String)
dataset_uri = Column(String)
search_template = Column(String)
time_limit = Column(Integer)
max_models = Column(Integer)
class Requests(Base):
__tablename__ = "requests"
id = Column(String, primary_key=True)
type = Column(String)
solution_id = Column(String, ForeignKey("solutions.id"))
fit_solution_id = Column(String, ForeignKey("fit_solution.id"))
task_id = Column(String, ForeignKey("tasks.id"))
created_at = Column(DateTime, default=datetime.datetime.utcnow)
internal_score = Column(Float)
class FitSolution(Base):
__tablename__ = "fit_solution"
id = Column(String, primary_key=True)
solution_id = Column(String, ForeignKey("solutions.id"))
task_id = Column(String, ForeignKey("tasks.id"))
created_at = Column(DateTime, default=datetime.datetime.utcnow)
internal_score = Column(Float)
class Solutions(Base):
__tablename__ = "solutions"
id = Column(String, primary_key=True)
search_id = Column(String, ForeignKey("searches.id"))
pipeline_id = Column(String, ForeignKey("pipelines.id"))
created_at = Column(DateTime, default=datetime.datetime.utcnow)
internal_score = Column(Float)
class Tasks(Base):
__tablename__ = "tasks"
id = Column(String, primary_key=True)
search_id = Column(String, ForeignKey("searches.id"))
solution_id = Column(String, ForeignKey("solutions.id"))
fit_solution_id = Column(String, ForeignKey("fit_solution.id"))
request_id = Column(String, ForeignKey("requests.id"))
# VALIDATE or SCORE
type = Column(String)
# Start -- SCORE specific --
score_config_id = Column(String, ForeignKey("score_config.id"))
# End -- SCORE specific
worker_id = Column(String)
dataset_uri = Column(String)
output_keys = Column(String)
output_types = Column(String)
pipeline = Column(String)
pipeline_run = Column(String)
problem = Column(String)
created_at = Column(DateTime, default=datetime.datetime.utcnow)
started_at = Column(DateTime)
ended = Column(Boolean, default=False)
fitted = Column(Boolean, default=False)
ended_at = Column(DateTime)
error = Column(Boolean, default=False)
error_message = Column(String)
# Start -- FIT specific --
fully_specified = Column(Boolean, default=False)
# End -- FIT specific
class Pipelines(Base):
__tablename__ = "pipelines"
id = Column(String, primary_key=True)
search_id = Column(String, ForeignKey("searches.id"))
created_at = Column(DateTime, default=datetime.datetime.utcnow)
pipelines = Column(String) # [{}...{}]
error = Column(Boolean, default=False)
ended = Column(Boolean, default=False)
fully_specified = Column(Boolean, default=False)
rank = Column(Integer, default=1)
class ScoreConfig(Base):
__tablename__ = "score_config"
id = Column(String, primary_key=True)
# e.g. 'F1_MICRO'
metric = Column(String)
# e.g. 'HOLDOUT'
method = Column(String)
num_folds = Column(Integer, default=3)
train_test_ratio = Column(Integer)
train_size = Column(Float, default=0.75)
shuffle = Column(Boolean, default=True)
random_seed = Column(Integer, default=505)
stratified = Column(Boolean, default=False)
pos_label = Column(String, default="")
class Scores(Base):
__tablename__ = "scores"
id = Column(Integer, primary_key=True)
solution_id = Column(String, ForeignKey("solutions.id"))
fit_solution_id = Column(String, ForeignKey("fit_solution.id"))
score_config_id = Column(Integer, ForeignKey("score_config.id"))
# metric that was actually applied - can differ from requested
metric_used = Column(String)
value = Column(Float)
class Messages(Base):
__tablename__ = "messages"
id = Column(Integer, primary_key=True)
task_id = Column(String, ForeignKey("tasks.id"))
message = Column(Text)
progress = Column(Text)