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Fix MySQL support #32

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Fix MySQL support #32

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589baa5
make sql backend compatible with MySQL
mennozon Feb 20, 2019
725eae4
add mysql engine config example
mennozon Feb 20, 2019
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1 change: 1 addition & 0 deletions etc/backy.cfg
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@ type: backy2.meta_backends.sql
# sqlite:////path/to/sqlitefile
# postgresql:///database
# postgresql://user:password@host:port/database
# mysql://user:password@host:port/database
engine: sqlite:////var/lib/backy2/backy.sqlite


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12 changes: 6 additions & 6 deletions src/backy2/meta_backends/sql.py
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Expand Up @@ -3,7 +3,7 @@
from backy2.logging import logger
from backy2.meta_backends import MetaBackend as _MetaBackend
from collections import namedtuple
from sqlalchemy import Column, String, Integer, BigInteger, ForeignKey
from sqlalchemy import Column, String, Integer, BigInteger, ForeignKey, PrimaryKeyConstraint
from sqlalchemy import func, distinct, desc
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
Expand All @@ -30,7 +30,7 @@ class Stats(Base):
__tablename__ = 'stats'
date = Column("date", DateTime , default=func.now(), nullable=False)
version_uid = Column(String(36), primary_key=True)
version_name = Column(String, nullable=False)
version_name = Column(String(512), nullable=False)
version_size_bytes = Column(BigInteger, nullable=False)
version_size_blocks = Column(BigInteger, nullable=False)
bytes_read = Column(BigInteger, nullable=False)
Expand All @@ -48,8 +48,8 @@ class Version(Base):
__tablename__ = 'versions'
uid = Column(String(36), primary_key=True)
date = Column("date", DateTime , default=func.now(), nullable=False)
name = Column(String, nullable=False, default='')
snapshot_name = Column(String, nullable=False, server_default='', default='')
name = Column(String(512), nullable=False, default='')
snapshot_name = Column(String(512), nullable=False, server_default='', default='')
size = Column(BigInteger, nullable=False)
size_bytes = Column(BigInteger, nullable=False)
valid = Column(Integer, nullable=False)
Expand All @@ -68,7 +68,7 @@ def __repr__(self):
class Tag(Base):
__tablename__ = 'tags'
version_uid = Column(String(36), ForeignKey('versions.uid'), primary_key=True, nullable=False)
name = Column(String, nullable=False, primary_key=True)
name = Column(String(512), nullable=False, primary_key=True)

def __repr__(self):
return "<Tag(version_uid='%s', name='%s')>" % (
Expand All @@ -80,7 +80,7 @@ class Block(Base):
__tablename__ = 'blocks'
uid = Column(String(32), nullable=True, index=True)
version_uid = Column(String(36), ForeignKey('versions.uid'), primary_key=True, nullable=False)
id = Column(Integer, primary_key=True, nullable=False)
id = Column(Integer, primary_key=True, nullable=False, autoincrement=False)
date = Column("date", DateTime , default=func.now(), nullable=False)
checksum = Column(String(128), index=True, nullable=True)
size = Column(BigInteger, nullable=True)
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