boartty/gertty/db.py

447 lines
17 KiB
Python

# Copyright 2014 OpenStack Foundation
#
# 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 sqlalchemy
from sqlalchemy import create_engine, MetaData, Table, Column, Integer, String, Boolean, DateTime, Text, select, func
from sqlalchemy.schema import ForeignKey
from sqlalchemy.orm import mapper, sessionmaker, relationship, column_property, scoped_session
from sqlalchemy.orm.session import Session
from sqlalchemy.sql.expression import and_
metadata = MetaData()
project_table = Table(
'project', metadata,
Column('key', Integer, primary_key=True),
Column('name', String(255), index=True, unique=True, nullable=False),
Column('subscribed', Boolean, index=True, default=False),
Column('description', Text, nullable=False, default=''),
)
change_table = Table(
'change', metadata,
Column('key', Integer, primary_key=True),
Column('project_key', Integer, ForeignKey("project.key"), index=True),
Column('id', String(255), index=True, unique=True, nullable=False),
Column('number', Integer, index=True, unique=True, nullable=False),
Column('branch', String(255), index=True, nullable=False),
Column('change_id', String(255), index=True, nullable=False),
Column('topic', String(255), index=True),
Column('owner', String(255), index=True),
Column('subject', Text, nullable=False),
Column('created', DateTime, index=True, nullable=False),
Column('updated', DateTime, index=True, nullable=False),
Column('status', String(8), index=True, nullable=False),
Column('hidden', Boolean, index=True, nullable=False),
Column('reviewed', Boolean, index=True, nullable=False),
)
revision_table = Table(
'revision', metadata,
Column('key', Integer, primary_key=True),
Column('change_key', Integer, ForeignKey("change.key"), index=True),
Column('number', Integer, index=True, nullable=False),
Column('message', Text, nullable=False),
Column('commit', String(255), nullable=False),
Column('parent', String(255), nullable=False),
)
message_table = Table(
'message', metadata,
Column('key', Integer, primary_key=True),
Column('revision_key', Integer, ForeignKey("revision.key"), index=True),
Column('id', String(255), index=True), #, unique=True, nullable=False),
Column('created', DateTime, index=True, nullable=False),
Column('name', String(255)),
Column('message', Text, nullable=False),
Column('pending', Boolean, index=True, nullable=False),
)
comment_table = Table(
'comment', metadata,
Column('key', Integer, primary_key=True),
Column('revision_key', Integer, ForeignKey("revision.key"), index=True),
Column('id', String(255), index=True), #, unique=True, nullable=False),
Column('in_reply_to', String(255)),
Column('created', DateTime, index=True, nullable=False),
Column('name', String(255)),
Column('file', Text, nullable=False),
Column('parent', Boolean, nullable=False),
Column('line', Integer),
Column('message', Text, nullable=False),
Column('pending', Boolean, index=True, nullable=False),
)
label_table = Table(
'label', metadata,
Column('key', Integer, primary_key=True),
Column('change_key', Integer, ForeignKey("change.key"), index=True),
Column('category', String(255), nullable=False),
Column('value', Integer, nullable=False),
Column('description', String(255), nullable=False),
)
permitted_label_table = Table(
'permitted_label', metadata,
Column('key', Integer, primary_key=True),
Column('change_key', Integer, ForeignKey("change.key"), index=True),
Column('category', String(255), nullable=False),
Column('value', Integer, nullable=False),
)
approval_table = Table(
'approval', metadata,
Column('key', Integer, primary_key=True),
Column('change_key', Integer, ForeignKey("change.key"), index=True),
Column('name', String(255)),
Column('category', String(255), nullable=False),
Column('value', Integer, nullable=False),
Column('pending', Boolean, index=True, nullable=False),
)
class Project(object):
def __init__(self, name, subscribed=False, description=''):
self.name = name
self.subscribed = subscribed
self.description = description
def createChange(self, *args, **kw):
session = Session.object_session(self)
args = [self] + list(args)
c = Change(*args, **kw)
self.changes.append(c)
session.add(c)
session.flush()
return c
class Change(object):
def __init__(self, project, id, number, branch, change_id,
owner, subject, created, updated, status,
topic=False, hidden=False, reviewed=False):
self.project_key = project.key
self.id = id
self.number = number
self.branch = branch
self.change_id = change_id
self.topic = topic
self.owner = owner
self.subject = subject
self.created = created
self.updated = updated
self.status = status
self.hidden = hidden
self.reviewed = reviewed
def getCategories(self):
categories = []
for label in self.labels:
if label.category in categories:
continue
categories.append(label.category)
return categories
def getMaxForCategory(self, category):
if not hasattr(self, '_approval_cache'):
self._updateApprovalCache()
return self._approval_cache.get(category, 0)
def _updateApprovalCache(self):
cat_min = {}
cat_max = {}
cat_value = {}
for approval in self.approvals:
cur_min = cat_min.get(approval.category, 0)
cur_max = cat_max.get(approval.category, 0)
cur_min = min(approval.value, cur_min)
cur_max = max(approval.value, cur_max)
cat_min[approval.category] = cur_min
cat_max[approval.category] = cur_max
cur_value = cat_value.get(approval.category, 0)
if abs(cur_min) > abs(cur_value):
cur_value = cur_min
if abs(cur_max) > abs(cur_value):
cur_value = cur_max
cat_value[approval.category] = cur_value
self._approval_cache = cat_value
def createRevision(self, *args, **kw):
session = Session.object_session(self)
args = [self] + list(args)
r = Revision(*args, **kw)
self.revisions.append(r)
session.add(r)
session.flush()
return r
def createLabel(self, *args, **kw):
session = Session.object_session(self)
args = [self] + list(args)
l = Label(*args, **kw)
self.labels.append(l)
session.add(l)
session.flush()
return l
def createApproval(self, *args, **kw):
session = Session.object_session(self)
args = [self] + list(args)
l = Approval(*args, **kw)
self.approvals.append(l)
session.add(l)
session.flush()
return l
def createPermittedLabel(self, *args, **kw):
session = Session.object_session(self)
args = [self] + list(args)
l = PermittedLabel(*args, **kw)
self.permitted_labels.append(l)
session.add(l)
session.flush()
return l
class Revision(object):
def __init__(self, change, number, message, commit, parent):
self.change_key = change.key
self.number = number
self.message = message
self.commit = commit
self.parent = parent
def createMessage(self, *args, **kw):
session = Session.object_session(self)
args = [self] + list(args)
m = Message(*args, **kw)
self.messages.append(m)
session.add(m)
session.flush()
return m
def createComment(self, *args, **kw):
session = Session.object_session(self)
args = [self] + list(args)
c = Comment(*args, **kw)
self.comments.append(c)
session.add(c)
session.flush()
return c
class Message(object):
def __init__(self, revision, id, created, name, message, pending=False):
self.revision_key = revision.key
self.id = id
self.created = created
self.name = name
self.message = message
self.pending = pending
class Comment(object):
def __init__(self, revision, id, in_reply_to, created, name, file, parent, line, message, pending=False):
self.revision_key = revision.key
self.id = id
self.in_reply_to = in_reply_to
self.created = created
self.name = name
self.file = file
self.parent = parent
self.line = line
self.message = message
self.pending = pending
class Label(object):
def __init__(self, change, category, value, description):
self.change_key = change.key
self.category = category
self.value = value
self.description = description
class PermittedLabel(object):
def __init__(self, change, category, value):
self.change_key = change.key
self.category = category
self.value = value
class Approval(object):
def __init__(self, change, name, category, value, pending=False):
self.change_key = change.key
self.name = name
self.category = category
self.value = value
self.pending = pending
mapper(Project, project_table, properties=dict(
changes=relationship(Change, backref='project',
order_by=change_table.c.number),
unreviewed_changes=relationship(Change,
primaryjoin=and_(project_table.c.key==change_table.c.project_key,
change_table.c.hidden==False,
change_table.c.reviewed==False),
order_by=change_table.c.number,
),
reviewed_changes=relationship(Change,
primaryjoin=and_(project_table.c.key==change_table.c.project_key,
change_table.c.hidden==False,
change_table.c.reviewed==True),
order_by=change_table.c.number,
),
updated = column_property(
select([func.max(change_table.c.updated)]).where(
change_table.c.project_key==project_table.c.key)
),
))
mapper(Change, change_table, properties=dict(
revisions=relationship(Revision, backref='change',
order_by=revision_table.c.number),
messages=relationship(Message,
secondary=revision_table,
order_by=message_table.c.created),
labels=relationship(Label, backref='change', order_by=(label_table.c.category,
label_table.c.value)),
permitted_labels=relationship(PermittedLabel, backref='change',
order_by=(permitted_label_table.c.category,
permitted_label_table.c.value)),
approvals=relationship(Approval, backref='change', order_by=(approval_table.c.category,
approval_table.c.value)),
pending_approvals=relationship(Approval,
primaryjoin=and_(change_table.c.key==approval_table.c.change_key,
approval_table.c.pending==True),
order_by=(approval_table.c.category,
approval_table.c.value))
))
mapper(Revision, revision_table, properties=dict(
messages=relationship(Message, backref='revision'),
comments=relationship(Comment, backref='revision',
order_by=(comment_table.c.line,
comment_table.c.created)),
pending_comments=relationship(Comment,
primaryjoin=and_(revision_table.c.key==comment_table.c.revision_key,
comment_table.c.pending==True),
order_by=(comment_table.c.line,
comment_table.c.created)),
))
mapper(Message, message_table)
mapper(Comment, comment_table)
mapper(Label, label_table)
mapper(PermittedLabel, permitted_label_table)
mapper(Approval, approval_table)
class Database(object):
def __init__(self, app):
self.app = app
self.engine = create_engine(self.app.config.dburi)
metadata.create_all(self.engine)
self.session_factory = sessionmaker(bind=self.engine)
self.session = scoped_session(self.session_factory)
def getSession(self):
return DatabaseSession(self.session)
class DatabaseSession(object):
def __init__(self, session):
self.session = session
def __enter__(self):
return self
def __exit__(self, etype, value, tb):
if etype:
self.session().rollback()
else:
self.session().commit()
self.session().close()
self.session = None
def abort(self):
self.session().rollback()
def commit(self):
self.session().commit()
def delete(self, obj):
self.session().delete(obj)
def getProjects(self, subscribed=False):
if subscribed:
return self.session().query(Project).filter_by(subscribed=subscribed).order_by(Project.name).all()
else:
return self.session().query(Project).order_by(Project.name).all()
def getProject(self, key):
try:
return self.session().query(Project).filter_by(key=key).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getProjectByName(self, name):
try:
return self.session().query(Project).filter_by(name=name).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getChange(self, key):
try:
return self.session().query(Change).filter_by(key=key).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getChangeByID(self, id):
try:
return self.session().query(Change).filter_by(id=id).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getRevision(self, key):
try:
return self.session().query(Revision).filter_by(key=key).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getRevisionByCommit(self, commit):
try:
return self.session().query(Revision).filter_by(commit=commit).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getRevisionByNumber(self, change, number):
try:
return self.session().query(Revision).filter_by(change_key=change.key, number=number).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getComment(self, key):
try:
return self.session().query(Comment).filter_by(key=key).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getCommentByID(self, id):
try:
return self.session().query(Comment).filter_by(id=id).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getMessage(self, key):
try:
return self.session().query(Message).filter_by(key=key).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getMessageByID(self, id):
try:
return self.session().query(Message).filter_by(id=id).one()
except sqlalchemy.orm.exc.NoResultFound:
return None
def getPendingMessages(self):
return self.session().query(Message).filter_by(pending=True).all()
def createProject(self, *args, **kw):
o = Project(*args, **kw)
self.session().add(o)
self.session().flush()
return o