306 lines
9.9 KiB
Python
306 lines
9.9 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of
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#this repository contains the full copyright notices and license terms.
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from trytond.backend.database import DatabaseInterface, CursorInterface
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from trytond.config import CONFIG
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from trytond.session import Session
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import logging
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import os
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import re
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import mx.DateTime
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from decimal import Decimal
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_FIX_ROWCOUNT = False
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try:
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from pysqlite2 import dbapi2 as sqlite
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from pysqlite2.dbapi2 import IntegrityError as DatabaseIntegrityError
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from pysqlite2.dbapi2 import OperationalError as DatabaseOperationalError
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#pysqlite2 < 2.5 doesn't return correct rowcount
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_FIX_ROWCOUNT = sqlite.version_info < (2 , 5, 0)
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except ImportError:
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import sqlite3 as sqlite
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from sqlite3 import IntegrityError as DatabaseIntegrityError
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from sqlite3 import OperationalError as DatabaseOperationalError
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def date_trunc(_type, date):
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if _type == 'second':
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return date
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try:
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date = mx.DateTime.strptime(date, '%Y-%m-%d %H:%M:%S')
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except:
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return None
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if _type == 'year':
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return "%i-01-01 00:00:00" % dt.year
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elif _type == 'month':
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return "%i-%02i-01 00:00:00" % (dt.year, dt.month)
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elif _type == 'day':
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return "%i-%02i-%02i 00:00:00" % (dt.year, dt.month, dt.day)
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def now():
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return mx.DateTime.now().strftime('%Y-%m-%d %H:%M:%S')
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class Database(DatabaseInterface):
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_memory_database = None
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_conn = None
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def __new__(cls, database_name=':memory:'):
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if database_name == ':memory:' \
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and cls._memory_database:
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return cls._memory_database
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return DatabaseInterface.__new__(cls, database_name=database_name)
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def __init__(self, database_name=':memory:'):
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super(Database, self).__init__(database_name=database_name)
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if database_name == ':memory:':
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Database._memory_database = self
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def connect(self):
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if self.database_name == ':memory:':
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path = ':memory:'
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else:
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path = os.path.join(CONFIG['data_path'],
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self.database_name + '.sqlite')
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if not os.path.isfile(path):
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raise Exception('Database doesn\'t exist!')
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if self._conn is not None:
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return self
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self._conn = sqlite.connect(path, detect_types=sqlite.PARSE_DECLTYPES)
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self._conn.create_function('date_trunc', 2, date_trunc)
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self._conn.create_function('now', 0, now)
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return self
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def cursor(self, autocommit=False):
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if self._conn is None:
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self.connect()
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if autocommit:
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self._conn.isolation_level = None
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else:
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self._conn.isolation_level = 'IMMEDIATE'
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return Cursor(self._conn, self.database_name)
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def close(self):
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if self.database_name == ':memory:':
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return
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if self._conn is None:
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return
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self._conn = None
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def create(self, cursor, database_name):
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if database_name == ':memory:':
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path = ':memory:'
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else:
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if os.sep in database_name:
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return
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path = os.path.join(CONFIG['data_path'],
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database_name + '.sqlite')
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conn = sqlite.connect(path)
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cursor = conn.cursor()
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cursor.close()
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conn.close()
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def drop(self, cursor, database_name):
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if database_name == ':memory':
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self._conn = None
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return
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if os.sep in database_name:
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return
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os.remove(os.path.join(CONFIG['data_path'],
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database_name + '.sqlite'))
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@staticmethod
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def dump(database_name):
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if database_name == ':memory:':
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raise Exception('Unable to dump memory database!')
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if os.sep in database_name:
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raise Exception('Wrong database name!')
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path = os.path.join(CONFIG['data_path'],
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database_name + '.sqlite')
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file_p = file(path)
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data = file_p.read()
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file_p.close()
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return data
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@staticmethod
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def restore(database_name, data):
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if database_name == ':memory:':
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raise Exception('Unable to restore memory database!')
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if os.sep in database_name:
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raise Exception('Wrong database name!')
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path = os.path.join(CONFIG['data_path'],
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database_name + '.sqlite')
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if os.path.isfile(path):
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raise Exception('Database already exists!')
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file_p = file(path, 'wb')
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file_p.write(data)
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file_p.close()
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@staticmethod
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def list(cursor):
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res = []
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for file in os.listdir(CONFIG['data_path']) + [':memory:']:
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if file.endswith('.sqlite') or file == ':memory:':
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if file == ':memory:':
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db_name = ':memory:'
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else:
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db_name = file[:-7]
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try:
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database = Database(db_name)
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except:
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continue
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cursor2 = database.cursor()
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if cursor2.test():
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res.append(db_name)
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cursor2.close()
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return res
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@staticmethod
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def init(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.join(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('INSERT INTO ir_module_module ' \
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'(create_uid, create_date, author, website, name, ' \
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'shortdesc, description, state) ' \
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'VALUES (%s, now(), %s, %s, %s, %s, %s, %s)',
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(0, 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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cursor.execute('SELECT last_insert_rowid()')
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module_id = cursor.fetchone()[0]
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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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'(create_uid, create_date, module, name) ' \
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'VALUES (%s, now(), %s, %s) ',
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(0, module_id, dependency))
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class _Cursor(sqlite.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 Cursor(CursorInterface):
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IN_MAX = 200
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def __init__(self, conn, database_name):
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super(Cursor, self).__init__()
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self._conn = conn
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self.database_name = database_name
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self.dbname = self.database_name #XXX to remove
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self.cursor = conn.cursor(_Cursor)
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def __getattr__(self, name):
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if _FIX_ROWCOUNT and name == 'rowcount':
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return -1
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return getattr(self.cursor, name)
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def execute(self, sql, params=None):
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sql = sql.replace('?', '??')
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quote_separation = re.compile(r"(.*?)('.*?')", re.DOTALL)
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notQuoted_quoted = quote_separation.findall(sql+"''")
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replaced = [nq\
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.replace('%s', '?')\
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.replace('ilike', 'like') \
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+ q for (nq, q) in notQuoted_quoted]
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sql = "".join(replaced)[:-2]
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try:
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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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except:
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raise
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return res
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def close(self, close=False):
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self.cursor.close()
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self.rollback()
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def commit(self):
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super(Cursor, self).commit()
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self._conn.commit()
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def rollback(self):
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super(Cursor, self).rollback()
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self._conn.rollback()
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def test(self):
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try:
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self.cursor.execute("SELECT name " \
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"FROM sqlite_master " \
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"WHERE type = 'table' AND name in (" \
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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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"'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_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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except:
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return False
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return len(self.cursor.fetchall()) != 0
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def lastid(self):
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self.cursor.execute('SELECT last_insert_rowid()')
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return self.cursor.fetchone()[0]
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def has_lock(self):
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return False
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def has_constraint(self):
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return False
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sqlite.register_converter('NUMERIC', lambda val: Decimal(str(val)))
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sqlite.register_adapter(Decimal, lambda val: float(val))
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sqlite.register_adapter(Session, lambda val: int(val))
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