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models.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2011, 2012, 2013, 2014 CERN.
#
# Invenio is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# Invenio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Invenio; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""OAI harvest database models."""
from sqlalchemy import event
from invenio.ext.sqlalchemy import db
from invenio.ext.sqlalchemy.utils import session_manager
from invenio.modules.records.models import Record as Bibrec
from invenio.modules.scheduler.models import SchTASK
def get_default_arguments():
"""Return default values for arguments."""
arguments_default = {'c_stylesheet': '',
'r_kb-rep-no-file': '',
'r_format': '',
'u_name': '',
'a_rt-queue': '',
'r_kb-journal-file': '',
'u_priority': '',
'a_stylesheet': '',
't_doctype': '',
'f_filter-file': '',
'p_extraction-source': []}
return arguments_default
class OaiHARVEST(db.Model):
"""Represents a OaiHARVEST record."""
__tablename__ = 'oaiHARVEST'
id = db.Column(db.MediumInteger(9, unsigned=True), nullable=False,
primary_key=True, autoincrement=True)
baseurl = db.Column(db.String(255), nullable=False, server_default='')
metadataprefix = db.Column(db.String(255), nullable=False,
server_default='oai_dc')
arguments = db.Column(db.MarshalBinary(default_value=get_default_arguments(),
force_type=dict), nullable=False)
comment = db.Column(db.Text, nullable=True)
name = db.Column(db.String(255), nullable=False)
lastrun = db.Column(db.DateTime, nullable=True)
postprocess = db.Column(db.String(20), nullable=False,
server_default='h')
workflows = db.Column(db.String(255),
nullable=False,
server_default='')
setspecs = db.Column(db.Text, nullable=False)
def to_dict(self):
"""Get model as dict."""
dict_representation = self.__dict__
del dict_representation["_sa_instance_state"]
return dict_representation
@classmethod
def get(cls, *criteria, **filters):
"""Wrapper for filter and filter_by functions of SQLAlchemy.
.. code-block:: python
OaiHARVEST.get(OaiHARVEST.id == 1)
OaiHARVEST.get(id=1)
"""
return cls.query.filter(*criteria).filter_by(**filters)
@session_manager
def save(self):
"""Save object to persistent storage."""
db.session.add(self)
class OaiREPOSITORY(db.Model):
"""Represents a OaiREPOSITORY record."""
__tablename__ = 'oaiREPOSITORY'
id = db.Column(db.MediumInteger(9, unsigned=True), nullable=False,
primary_key=True, autoincrement=True)
setName = db.Column(db.String(255), nullable=False,
server_default='')
setSpec = db.Column(db.String(255), nullable=False,
server_default='')
setCollection = db.Column(db.String(255), nullable=False,
server_default='')
setDescription = db.Column(db.Text, nullable=False)
setDefinition = db.Column(db.Text, nullable=False)
setRecList = db.Column(db.iLargeBinary, nullable=True)
last_updated = db.Column(db.DateTime, nullable=False,
server_default='1970-01-01 00:00:00')
p1 = db.Column(db.Text, nullable=False, default='')
f1 = db.Column(db.Text, nullable=False, default='')
m1 = db.Column(db.Text, nullable=False, default='')
p2 = db.Column(db.Text, nullable=False, default='')
f2 = db.Column(db.Text, nullable=False, default='')
m2 = db.Column(db.Text, nullable=False, default='')
p3 = db.Column(db.Text, nullable=False, default='')
f3 = db.Column(db.Text, nullable=False, default='')
m3 = db.Column(db.Text, nullable=False, default='')
@classmethod
def update_setdefinition_listener(cls, mapper, connection, target):
"""Update setDefinition attribute on before_insert/before_update events."""
# FIXME: Next two lines
op1 = ''
op2 = ''
# Set fields to empty string if none.
for attr in ['p1', 'f1', 'm1', 'p2', 'f2', 'm2', 'p3', 'f3', 'm3',
'setCollection', 'setName', 'setSpec', 'setDescription']:
if getattr(target, attr) is None:
setattr(target, attr, '')
target.setDefinition = \
'c=' + target.setCollection + ';' + \
'p1=' + target.p1 + ';' + \
'f1=' + target.f1 + ';' + \
'm1=' + target.m1 + ';' + \
'op1=' + op1 + ';' + \
'p2=' + target.p2 + ';' + \
'f2=' + target.f2 + ';' + \
'm2=' + target.m2 + ';' + \
'op2=' + op2 + ';' + \
'p3=' + target.p3 + ';' + \
'f3=' + target.f3 + ';' + \
'm3=' + target.m3 + ';'
# Connect Alchemy event listeners to update setDefinition on INSERT and UPDATE
event.listen(
OaiREPOSITORY, 'before_insert', OaiREPOSITORY.update_setdefinition_listener
)
event.listen(
OaiREPOSITORY, 'before_update', OaiREPOSITORY.update_setdefinition_listener
)
class OaiHARVESTLOG(db.Model):
"""Represents a OaiHARVESTLOG record."""
__tablename__ = 'oaiHARVESTLOG'
id_oaiHARVEST = db.Column(
db.MediumInteger(9, unsigned=True),
db.ForeignKey(OaiHARVEST.id), nullable=False
)
id_bibrec = db.Column(
db.MediumInteger(8, unsigned=True),
db.ForeignKey(Bibrec.id), nullable=False, server_default='0'
)
bibupload_task_id = db.Column(db.Integer(11), db.ForeignKey(SchTASK.id),
nullable=False, server_default='0',
primary_key=True)
oai_id = db.Column(db.String(40), nullable=False, server_default='',
primary_key=True)
date_harvested = db.Column(db.DateTime, nullable=False,
server_default='1900-01-01 00:00:00',
primary_key=True)
date_inserted = db.Column(db.DateTime, nullable=False,
server_default='1900-01-01 00:00:00')
inserted_to_db = db.Column(db.Char(1), nullable=False,
server_default='P')
bibrec = db.relationship(Bibrec, backref='harvestlogs')
schtask = db.relationship(SchTASK)
__all__ = ('OaiHARVEST',
'OaiREPOSITORY',
'OaiHARVESTLOG')

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