517 lines
20 KiB
Python
517 lines
20 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of this repository contains the full copyright notices and license terms.
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from psycopg2.pool import ThreadedConnectionPool
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from psycopg2.extensions import ISOLATION_LEVEL_SERIALIZABLE, cursor
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from psycopg2 import IntegrityError
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import psycopg2
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import re
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import os
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from mx import DateTime as mdt
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import zipfile
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import version
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from config import CONFIG
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import logging
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RE_FROM = re.compile('.* from "?([a-zA-Z_0-9]+)"?.*$')
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RE_INTO = re.compile('.* into "?([a-zA-Z_0-9]+)"?.*$')
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class tryton_cursor(cursor):
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def __build_dict(self, row):
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res = {}
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for i in range(len(self.description)):
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res[self.description[i][0]] = row[i]
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return res
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def dictfetchone(self):
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row = self.fetchone()
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if row:
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return self.__build_dict(row)
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else:
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return row
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def dictfetchmany(self, size):
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res = []
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rows = self.fetchmany(size)
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for row in rows:
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res.append(self.__build_dict(row))
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return res
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def dictfetchall(self):
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res = []
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rows = self.fetchall()
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for row in rows:
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res.append(self.__build_dict(row))
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return res
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class FakeCursor(object):
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nbr = 0
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_tables = {}
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sql_log = False
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IN_MAX = 1000
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def __init__(self, connpool, conn, dbname, cursor_factory):
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self._connpool = connpool
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self.conn = conn
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self.cursor_factory = cursor_factory
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self.cursor = conn.cursor(cursor_factory=self.cursor_factory)
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self.dbname = dbname
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self.sql_from_log = {}
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self.sql_into_log = {}
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self.count = 0
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def execute(self, sql, params=None):
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if not params:
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params = ()
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if self.sql_log:
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now = mdt.now()
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if params:
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res = self.cursor.execute(sql, params)
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else:
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res = self.cursor.execute(sql)
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if self.sql_log:
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self.count += 1
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res_from = RE_FROM.match(sql.lower())
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if res_from:
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self.sql_from_log.setdefault(res_from.group(1), [0, 0])
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self.sql_from_log[res_from.group(1)][0] += 1
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self.sql_from_log[res_from.group(1)][1] += mdt.now() - now
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res_into = RE_INTO.match(sql.lower())
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if res_into:
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self.sql_into_log.setdefault(res_into.group(1), [0, 0])
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self.sql_into_log[res_into.group(1)][0] += 1
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self.sql_into_log[res_into.group(1)][1] += mdt.now() - now
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return res
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def print_log(self, sql_type='from'):
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print "SQL LOG %s:" % (sql_type,)
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if sql_type == 'from':
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logs = self.sql_from_log.items()
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else:
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logs = self.sql_into_log.items()
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logs.sort(lambda x, y: cmp(x[1][1], y[1][1]))
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amount = 0
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for log in logs:
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print "table:", log[0], ":", str(log[1][1]), "/", log[1][0]
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amount += log[1][1]
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print "SUM:%s/%d"% (amount, self.count)
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def close(self):
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if self.sql_log:
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self.print_log('from')
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self.print_log('into')
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self.cursor.close()
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# This force the cursor to be freed, and thus, available again. It is
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# important because otherwise we can overload the server very easily
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# because of a cursor shortage (because cursors are not garbage
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# collected as fast as they should). The problem is probably due in
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# part because browse records keep a reference to the cursor.
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del self.cursor
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self._connpool.putconn(self.conn)
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def commit(self):
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self.conn.commit()
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def rollback(self):
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self.conn.rollback()
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def __getattr__(self, name):
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return getattr(self.cursor, name)
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def test(self):
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'''
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Test if it is a Tryton database.
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'''
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self.cursor.execute("SELECT relname " \
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"FROM pg_class " \
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"WHERE relkind = 'r' AND relname in (" \
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"'inherit', "
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"'ir_model', "
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"'ir_model_field', "
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"'ir_ui_view', "
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"'ir_ui_menu', "
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"'res_user', "
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"'res_group', "
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"'res_group_user_rel', "
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"'wkf', "
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"'wkf_activity', "
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"'wkf_transition', "
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"'wkf_instance', "
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"'wkf_workitem', "
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"'wkf_witm_trans', "
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"'ir_module_category', "
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"'ir_module_module', "
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"'ir_module_module_dependency, '"
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"'ir_translation, '"
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"'ir_lang'"
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")")
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return len(self.cursor.fetchall()) != 0
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class FakeDB:
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def __init__(self, connpool, dbname):
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self._connpool = connpool
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self.dbname = dbname
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def cursor(self, cursor_factory=tryton_cursor):
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conn = self._connpool.getconn()
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conn.set_isolation_level(ISOLATION_LEVEL_SERIALIZABLE)
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return FakeCursor(self._connpool, conn, self.dbname,
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cursor_factory=cursor_factory)
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def close(self):
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self._connpool.closeall()
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def db_connect(db_name):
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host = CONFIG['db_host'] and "host=%s" % CONFIG['db_host'] or ''
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port = CONFIG['db_port'] and "port=%s" % CONFIG['db_port'] or ''
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name = "dbname=%s" % db_name
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user = CONFIG['db_user'] and "user=%s" % CONFIG['db_user'] or ''
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password = CONFIG['db_password'] \
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and "password=%s" % CONFIG['db_password'] or ''
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maxconn = int(CONFIG['db_maxconn']) or 64
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dsn = '%s %s %s %s %s' % (host, port, name, user, password)
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connpool = ThreadedConnectionPool(0, maxconn, dsn)
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return FakeDB(connpool, db_name)
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def init_db(cursor):
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sql_file = os.path.join(os.path.dirname(__file__), 'init.sql')
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for line in file(sql_file).read().split(';'):
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if (len(line)>0) and (not line.isspace()):
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cursor.execute(line)
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for i in ('ir', 'workflow', 'res', 'webdav'):
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root_path = os.path.dirname(__file__)
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tryton_file = os.path.join(root_path, i, '__tryton__.py')
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mod_path = os.path.join(root_path, i)
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info = eval(file(tryton_file).read())
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active = info.get('active', False)
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if active:
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state = 'to install'
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else:
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state = 'uninstalled'
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cursor.execute('SELECT NEXTVAL(\'ir_module_module_id_seq\')')
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module_id = cursor.fetchone()[0]
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cursor.execute('INSERT INTO ir_module_module ' \
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'(id, author, website, name, shortdesc, ' \
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'description, state) ' \
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'VALUES (%s, %s, %s, %s, %s, %s, %s)',
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(module_id, info.get('author', ''),
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info.get('website', ''), i, info.get('name', False),
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info.get('description', ''), state))
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dependencies = info.get('depends', [])
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for dependency in dependencies:
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cursor.execute('INSERT INTO ir_module_module_dependency ' \
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'(module, name) VALUES (%s, %s)',
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(module_id, dependency))
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psycopg2.extensions.register_type(psycopg2.extensions.UNICODE)
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def table_exist(cursor, table_name):
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cursor.execute("SELECT relname FROM pg_class " \
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"WHERE relkind = 'r' AND relname = %s",
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(table_name,))
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return bool(cursor.rowcount)
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class table_handler:
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def __init__(self, cursor, table_name, object_name=None, module_name=None):
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self.table_name = table_name
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self.table = {}
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self.constraint = []
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self.fk_deltype = {}
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self.index = {}
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self.field2module = {}
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self.module_name = module_name
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self.cursor = cursor
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self.object_name = object_name
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# Create new table if necessary
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if not table_exist(self.cursor, self.table_name):
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self.cursor.execute('CREATE TABLE "%s" ' \
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"(id SERIAL NOT NULL, " \
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"PRIMARY KEY(id))"% self.table_name)
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self.update_definitions()
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def update_definitions(self):
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# Fetch columns definitions from the table
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self.cursor.execute("SELECT at.attname, at.attlen, "\
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"at.atttypmod, at.attnotnull, at.atthasdef, "\
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"ty.typname, "\
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"CASE WHEN at.attlen = -1 "\
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"THEN at.atttypmod-4 "\
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"ELSE at.attlen END as size "\
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"FROM pg_class cl "\
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"JOIN pg_attribute at on (cl.oid = at.attrelid) "\
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"JOIN pg_type ty on (at.atttypid = ty.oid) "\
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"WHERE cl.relname = %s AND at.attnum > 0",
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(self.table_name,))
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self.table = {}
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for line in self.cursor.fetchall():
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column, length, typmod, notnull, hasdef, typname, size = line
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self.table[column] = {
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"length": length,
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"typmod": typmod,
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"notnull": notnull ,
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"hasdef": hasdef,
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"size": size,
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"typname": typname}
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# fetch constrains for the table
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self.cursor.execute("SELECT co.contype, co.confdeltype, at.attname, "\
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"cl2.relname, co.conname "\
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"FROM pg_constraint co "\
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"LEFT JOIN pg_class cl on (co.conrelid = cl.oid) "\
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"LEFT JOIN pg_class cl2 on (co.confrelid = cl2.oid) "\
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"LEFT JOIN pg_attribute at on (co.conkey[1] = at.attnum) "\
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"WHERE cl.relname = %s",
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(self.table_name,))
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self.constraint = []
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self.fk_deltype = {}
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for line in self.cursor.fetchall():
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contype, confdeltype, column, ref, conname = line
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if contype == 'f':
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self.fk_deltype[column] = confdeltype
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else:
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if conname not in self.constraint:
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self.constraint.append(conname)
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# Fetch indexes defined for the table
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self.cursor.execute("SELECT cl2.relname "\
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"FROM pg_index ind "\
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"JOIN pg_class cl on (cl.oid = ind.indrelid) "\
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"JOIN pg_class cl2 on (cl2.oid = ind.indexrelid) "\
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"WHERE cl.relname = %s",
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(self.table_name,))
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self.index = [l[0] for l in self.cursor.fetchall()]
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# Keep track of which module created each field
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self.field2module = {}
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if self.object_name is not None:
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self.cursor.execute('SELECT f.name, f.module '\
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'FROM ir_model_field f '\
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'JOIN ir_model m on (f.model=m.id) '\
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'WHERE m.model = %s',
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(self.object_name,)
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)
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for line in self.cursor.fetchall():
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self.field2module[line[0]] = line[1]
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def alter_size(self, column_name, column_type):
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self.cursor.execute("ALTER TABLE \"%s\" " \
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"RENAME COLUMN \"%s\" " \
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"TO temp_change_size" % \
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(self.table_name, column_name))
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self.cursor.execute("ALTER TABLE \"%s\" " \
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"ADD COLUMN \"%s\" %s" % \
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(self.table_name, column_name, column_type))
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self.cursor.execute("UPDATE \"%s\" " \
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"SET \"%s\" = temp_change_size::%s" % \
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(self.table_name, column_name, column_type))
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self.cursor.execute("ALTER TABLE \"%s\" " \
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"DROP COLUMN temp_change_size" % \
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(self.table_name,))
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self.update_definitions()
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def alter_type(self, column_name, column_type):
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self.cursor.execute('ALTER TABLE "' + self.table_name + '" ' \
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'ALTER "' + column_name + '" TYPE ' + column_type)
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self.update_definitions()
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def db_default(self, column_name, value):
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self.cursor.execute('ALTER TABLE "' + self.table_name + '" ' \
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'ALTER COLUMN "' + column_name + '" SET DEFAULT %s',
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(value,))
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def add_raw_column(self, column_name, column_type, symbol_set,
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default_fun=None, field_size=None, migrate=True):
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if column_name in self.table:
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if not migrate:
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return
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base_type = column_type[0].lower()
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if base_type != self.table[column_name]['typname']:
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if (self.table[column_name]['typname'], base_type) in [
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('varchar', 'text'),
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('text', 'varchar'),
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('date', 'timestamp'),
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('int4', 'float8'),
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]:
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self.alter_type(column_name, base_type)
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else:
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logging.getLogger('init').warning(
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'Unable to migrate column %s on table %s ' \
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'from %s to %s.' % \
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(column_name, self.table_name,
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self.table[column_name]['typname'], base_type))
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if base_type == 'varchar' \
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and self.table[column_name]['typname'] == 'varchar':
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# Migrate size
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if field_size == None:
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if self.table[column_name]['size'] > 0:
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self.alter_size(column_name, base_type)
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pass
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elif self.table[column_name]['size'] == field_size:
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pass
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elif self.table[column_name]['size'] > 0 and \
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self.table[column_name]['size'] < field_size:
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self.alter_size(column_name, column_type[1])
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else:
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logging.getLogger('init').warning(
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'Unable to migrate column %s on table %s ' \
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'from varchar(%s) to varchar(%s).' % \
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(column_name, self.table_name,
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self.table[column_name]['size'] > 0 and \
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self.table[column_name]['size'] or "",
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field_size))
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return
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column_type = column_type[1]
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self.cursor.execute('ALTER TABLE "%s" ADD COLUMN "%s" %s' %
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(self.table_name, column_name, column_type))
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# check if table is non-empty:
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self.cursor.execute('SELECT 1 FROM "%s" limit 1' % self.table_name)
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if self.cursor.rowcount:
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# Populate column with default values:
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default = None
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if default_fun is not None:
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default = default_fun(self.cursor, 0, {})
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self.cursor.execute('UPDATE "' + self.table_name + '" '\
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'SET "' + column_name + '" = ' + symbol_set[0],
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(symbol_set[1](default),))
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self.update_definitions()
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def add_m2m(self, column_name, other_table, relation_table, rtable_from, rtable_to,
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on_delete_from, on_delete_to):
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if not table_exist(self.cursor, other_table):
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raise Exception("table %s not found"%other_table)
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rtable = table_handler(
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self.cursor, relation_table, object_name=None,
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module_name= self.module_name)
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from osv.fields import Integer
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rtable.add_raw_column(rtable_from, ('int4', 'int4'), Integer._symbol_set)
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rtable.add_raw_column(rtable_to, ('int4', 'int4'), Integer._symbol_set)
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rtable.add_fk(rtable_from, self.table_name, on_delete=on_delete_from)
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rtable.add_fk(rtable_to, other_table, on_delete=on_delete_to)
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rtable.not_null_action(rtable_from)
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rtable.not_null_action(rtable_to)
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rtable.index_action(rtable_from, 'add')
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rtable.index_action(rtable_to, 'add')
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def add_fk(self, column_name, reference, on_delete=None):
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on_delete_code = {
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'RESTRICT': 'r',
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'NO ACTION': 'a',
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'CASCADE': 'c',
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'SET NULL': 'n',
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'SET DEFAULT': 'd',
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}
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if on_delete is not None :
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on_delete = on_delete.upper()
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if on_delete not in on_delete_code:
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raise Exception('On delete action not supported !')
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else:
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on_delete = 'SET NULL'
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code = on_delete_code[on_delete]
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self.cursor.execute('SELECT conname FROM pg_constraint ' \
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'WHERE conname = %s',
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(self.table_name + '_' + column_name + '_fkey',))
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add = False
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if not self.cursor.rowcount:
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add = True
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elif self.fk_deltype.get(column_name) != code:
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self.cursor.execute('ALTER TABLE "' + self.table_name + '" ' \
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'DROP CONSTRAINT "' + self.table_name + '_' + \
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column_name + '_fkey"')
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add = True
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if add:
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self.cursor.execute('ALTER TABLE "' + self.table_name + '" ' \
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'ADD FOREIGN KEY ("' + column_name + '") ' \
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'REFERENCES "' + reference + '" ' \
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'ON DELETE ' + on_delete)
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self.update_definitions()
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def index_action(self, column_name, action='add'):
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index_name = "%s_%s_index" % (self.table_name, column_name)
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if action == 'add':
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if index_name in self.index:
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return
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self.cursor.execute('CREATE INDEX "' + index_name + '" ' \
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'ON "' + self.table_name + '" ("' + column_name + '")')
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self.update_definitions()
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elif action == 'remove':
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if self.field2module.get(column_name) != self.module_name:
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return
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self.cursor.execute("SELECT * FROM pg_indexes " \
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"WHERE indexname = '%s'" %
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(index_name,))
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if self.cursor.rowcount:
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self.cursor.execute('DROP INDEX "%s" ' % (index_name,))
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self.update_definitions()
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def not_null_action(self, column_name, action='add'):
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if column_name not in self.table:
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return
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if action == 'add':
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if self.table[column_name]['notnull']:
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return
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self.cursor.execute('SELECT id FROM "%s" ' \
|
|
'WHERE "%s" IS NULL' % \
|
|
(self.table_name, column_name))
|
|
if not self.cursor.rowcount:
|
|
self.cursor.execute('ALTER TABLE "' + self.table_name + '" ' \
|
|
'ALTER COLUMN "' + column_name + '" ' \
|
|
"SET NOT NULL")
|
|
self.update_definitions()
|
|
else:
|
|
logging.getLogger('init').warning(
|
|
'Unable to set column %s ' \
|
|
'of table %s not null !\n'\
|
|
'Try to re-run: ' \
|
|
'trytond.py --update=module\n' \
|
|
'If it doesn\'t work, update records and execute manually:\n' \
|
|
'ALTER TABLE "%s" ALTER COLUMN "%s" SET NOT NULL' % \
|
|
(column_name, self.table_name, self.table_name, column_name))
|
|
elif action == 'remove':
|
|
if not self.table[column_name]['notnull']:
|
|
return
|
|
if self.field2module.get(column_name) != self.module_name:
|
|
return
|
|
self.cursor.execute('ALTER TABLE "%s" ' \
|
|
'ALTER COLUMN "%s" DROP NOT NULL' %
|
|
(self.table_name, column_name))
|
|
self.update_definitions()
|
|
|
|
def add_constraint(self, ident, constraint):
|
|
ident = self.table_name + "_" + ident
|
|
if ident in self.constraint:
|
|
# This constrain already exist
|
|
return
|
|
try:
|
|
self.cursor.execute('ALTER TABLE "%s" ' \
|
|
'ADD CONSTRAINT "%s" %s' % \
|
|
(self.table_name, ident, constraint,))
|
|
except:
|
|
logging.getLogger('init').warning(
|
|
'unable to add \'%s\' constraint on table %s !\n' \
|
|
'If you want to have it, you should update the records ' \
|
|
'and execute manually:\n'\
|
|
'ALTER table "%s" ADD CONSTRAINT "%s" %s' % \
|
|
(constraint, self.table_name, self.table_name,
|
|
ident, constraint,))
|
|
self.update_definitions()
|