#758

Committed 04 Sep 2023 08:37PM UTC coverage: 0.0% (-78.3%) from 78.333%

Build # #758

Build Type

push

circle-ci

Committed by

hershd23

Commit Message

Increased underline length in at line 75 in text_summarization.rst
	modified:   docs/source/benchmarks/text_summarization.rst

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/evadb/catalog/models/base_model.py

# coding=utf-8
# Copyright 2018-2023 EvaDB
#
# 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 contextlib

import sqlalchemy
from sqlalchemy import Column, Integer
from sqlalchemy.engine import Engine
from sqlalchemy.exc import SQLAlchemyError
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy_utils import database_exists

from evadb.catalog.sql_config import CATALOG_TABLES
from evadb.utils.logging_manager import logger


class CustomModel:
    """This overrides the default `_declarative_constructor` constructor.

    It skips the attributes that are not present for the model, thus if a
    dict is passed with some unknown attributes for the model on creation,
    it won't complain for `unknown field`s.
    Declares and int `_row_id` field for all tables
    """

    _row_id = Column("_row_id", Integer, primary_key=True)

    def __init__(self, **kwargs):
        cls_ = type(self)
        for k in kwargs:
            if hasattr(cls_, k):
                setattr(self, k, kwargs[k])
            else:
                continue

    def save(self, db_session):
        """Add and commit

        Returns: saved object

        """
        try:
            db_session.add(self)
            self._commit(db_session)
        except Exception as e:
            db_session.rollback()
            logger.error(f"Database save failed : {str(e)}")
            raise e
        return self

    def update(self, db_session, **kwargs):
        """Update and commit

        Args:
            **kwargs: attributes to update

        Returns: updated object

        """
        try:
            for attr, value in kwargs.items():
                if hasattr(self, attr):
                    setattr(self, attr, value)
            return self.save(db_session)
        except Exception as e:
            db_session.rollback()
            logger.error(f"Database update failed : {str(e)}")
            raise e

    def delete(self, db_session):
        """Delete and commit"""
        try:
            db_session.delete(self)
            self._commit(db_session)
        except Exception as e:
            db_session.rollback()
            logger.error(f"Database delete failed : {str(e)}")
            raise e

    def _commit(self, db_session):
        """Try to commit. If an error is raised, the session is rollbacked."""
        try:
            db_session.commit()
        except SQLAlchemyError as e:
            db_session.rollback()
            logger.error(f"Database commit failed : {str(e)}")
            raise e


# Custom Base Model to be inherited by all models
BaseModel = declarative_base(cls=CustomModel, constructor=None)


def truncate_catalog_tables(engine: Engine):
    """Truncate all the catalog tables"""
    # https://stackoverflow.com/questions/4763472/sqlalchemy-clear-database-content-but-dont-drop-the-schema/5003705#5003705 #noqa
    # reflect to refresh the metadata
    BaseModel.metadata.reflect(bind=engine)
    insp = sqlalchemy.inspect(engine)
    if database_exists(engine.url):
        with contextlib.closing(engine.connect()) as con:
            trans = con.begin()
            for table in reversed(BaseModel.metadata.sorted_tables):
                if insp.has_table(table.name):
                    con.execute(table.delete())
            trans.commit()


def drop_all_tables_except_catalog(engine: Engine):
    """drop all the tables except the catalog"""
    # reflect to refresh the metadata
    BaseModel.metadata.reflect(bind=engine)
    insp = sqlalchemy.inspect(engine)
    if database_exists(engine.url):
        with contextlib.closing(engine.connect()) as con:
            trans = con.begin()
            for table in reversed(BaseModel.metadata.sorted_tables):
                if table.name not in CATALOG_TABLES:
                    if insp.has_table(table.name):
                        table.drop(con)
            trans.commit()

1	# coding=utf-8
2	# Copyright 2018-2023 EvaDB
3	#
4	# Licensed under the Apache License, Version 2.0 (the "License");
5	# you may not use this file except in compliance with the License.
6	# You may obtain a copy of the License at
7	#
8	# http://www.apache.org/licenses/LICENSE-2.0
9	#
10	# Unless required by applicable law or agreed to in writing, software
11	# distributed under the License is distributed on an "AS IS" BASIS,
12	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	# See the License for the specific language governing permissions and
14	# limitations under the License.
15	import contextlib	×
16
17	import sqlalchemy	×
18	from sqlalchemy import Column, Integer	×
19	from sqlalchemy.engine import Engine	×
20	from sqlalchemy.exc import SQLAlchemyError	×
21	from sqlalchemy.ext.declarative import declarative_base	×
22	from sqlalchemy_utils import database_exists	×
23
24	from evadb.catalog.sql_config import CATALOG_TABLES	×
25	from evadb.utils.logging_manager import logger	×
26
27
28	class CustomModel:	×
29	"""This overrides the default `_declarative_constructor` constructor.
30
31	It skips the attributes that are not present for the model, thus if a
32	dict is passed with some unknown attributes for the model on creation,
33	it won't complain for `unknown field`s.
34	Declares and int `_row_id` field for all tables
35	"""
36
37	_row_id = Column("_row_id", Integer, primary_key=True)	×
38
39	def __init__(self, **kwargs):	×
40	cls_ = type(self)	×
41	for k in kwargs:	×
42	if hasattr(cls_, k):	×
43	setattr(self, k, kwargs[k])	×
44	else:
45	continue	×
46
47	def save(self, db_session):	×
48	"""Add and commit
49
50	Returns: saved object
51
52	"""
53	try:	×
54	db_session.add(self)	×
55	self._commit(db_session)	×
56	except Exception as e:
57	db_session.rollback()
58	logger.error(f"Database save failed : {str(e)}")
59	raise e
60	return self	×
61
62	def update(self, db_session, **kwargs):	×
63	"""Update and commit
64
65	Args:
66	**kwargs: attributes to update
67
68	Returns: updated object
69
70	"""
71	try:	×
72	for attr, value in kwargs.items():	×
73	if hasattr(self, attr):	×
74	setattr(self, attr, value)	×
75	return self.save(db_session)	×
76	except Exception as e:
77	db_session.rollback()
78	logger.error(f"Database update failed : {str(e)}")
79	raise e
80
81	def delete(self, db_session):	×
82	"""Delete and commit"""
83	try:	×
84	db_session.delete(self)	×
85	self._commit(db_session)	×
86	except Exception as e:
87	db_session.rollback()
88	logger.error(f"Database delete failed : {str(e)}")
89	raise e
90
91	def _commit(self, db_session):	×
92	"""Try to commit. If an error is raised, the session is rollbacked."""
93	try:	×
94	db_session.commit()	×
95	except SQLAlchemyError as e:
96	db_session.rollback()
97	logger.error(f"Database commit failed : {str(e)}")
98	raise e
99
100
101	# Custom Base Model to be inherited by all models
102	BaseModel = declarative_base(cls=CustomModel, constructor=None)	×
103
104
105	def truncate_catalog_tables(engine: Engine):	×
106	"""Truncate all the catalog tables"""
107	# https://stackoverflow.com/questions/4763472/sqlalchemy-clear-database-content-but-dont-drop-the-schema/5003705#5003705 #noqa
108	# reflect to refresh the metadata
109	BaseModel.metadata.reflect(bind=engine)	×
110	insp = sqlalchemy.inspect(engine)	×
111	if database_exists(engine.url):	×
112	with contextlib.closing(engine.connect()) as con:	×
113	trans = con.begin()	×
114	for table in reversed(BaseModel.metadata.sorted_tables):	×
115	if insp.has_table(table.name):	×
116	con.execute(table.delete())	×
117	trans.commit()	×
118
119
120	def drop_all_tables_except_catalog(engine: Engine):
121	"""drop all the tables except the catalog"""
122	# reflect to refresh the metadata
123	BaseModel.metadata.reflect(bind=engine)
124	insp = sqlalchemy.inspect(engine)
125	if database_exists(engine.url):
126	with contextlib.closing(engine.connect()) as con:
127	trans = con.begin()
128	for table in reversed(BaseModel.metadata.sorted_tables):
129	if table.name not in CATALOG_TABLES:
130	if insp.has_table(table.name):
131	table.drop(con)
132	trans.commit()

georgia-tech-db / eva / #758

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