242 lines
8.7 KiB
Python
242 lines
8.7 KiB
Python
# The COPYRIGHT file at the top level of this repository contains the full
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# copyright notices and license terms.
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from trytond.model import ModelSQL, ModelView, MatchMixin, fields
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from trytond.pool import PoolMeta, Pool
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from trytond.pyson import Eval, And, Bool
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from trytond.transaction import Transaction
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from trytond.i18n import gettext
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from trytond.ir.sequence import MissingError
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from trytond import backend
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from sql import Literal, For
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__all__ = ['Sequence', 'SequencePeriod', 'SequenceStrict']
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sql_sequence = backend.Database.has_sequence()
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class Sequence(metaclass=PoolMeta):
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__name__ = 'ir.sequence'
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periods = fields.One2Many('ir.sequence.period', 'sequence', 'Periods',
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states={'invisible': Eval('type') != 'incremental'},
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depends=['type'],
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order=[('start_date', 'ASC')])
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@classmethod
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def write(cls, sequences, values, *args):
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super(Sequence, cls).write(sequences, values, *args)
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if sql_sequence and not cls._strict:
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for sequence in sequences:
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for period in sequence.periods:
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period.update_sql_sequence()
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def get_id(self, _lock=False):
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cls = self.__class__
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with Transaction().set_context(user=False, _check_access=False):
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with Transaction().set_user(0):
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try:
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sequence = cls(self.id)
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except TypeError:
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raise MissingError(gettext('ir.msg_sequence_missing'))
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date = Transaction().context.get('date')
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if sequence.periods:
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if not date:
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raise MissingError(gettext(
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'ir_sequence_period.sequence.msg_missing_date',
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sequence=sequence.rec_name))
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pattern = sequence._get_period_pattern()
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for period in sequence.periods:
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if period.match(pattern):
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return period.get(_lock=_lock)
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raise MissingError(gettext(
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'ir_sequence_period.sequence.msg_missing_date',
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date=date,
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sequence=sequence.rec_name))
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return super(Sequence, cls).get(_lock=_lock)
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return ''
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def _get_period_pattern(self):
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return {'date': Transaction().context.get('date')}
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class SequencePeriod(ModelSQL, ModelView, MatchMixin):
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'''Sequence period'''
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__name__ = 'ir.sequence.period'
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_strict = False
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sequence = fields.Many2One('ir.sequence', 'Sequence', required=True,
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ondelete='CASCADE')
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start_date = fields.Date('Start date', required=True)
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end_date = fields.Date('End date', required=True)
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number_next_internal = fields.Integer('Next Number',
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states={
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'invisible': ~Eval('_parent_sequence', {}).get('type').in_([
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'incremental']),
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'required': And(Eval('_parent_sequence', {}).get('type').in_(
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['incremental']), not sql_sequence),
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})
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number_next = fields.Function(number_next_internal, 'get_number_next',
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'set_number_next')
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prefix = fields.Char('Prefix')
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suffix = fields.Char('Suffix')
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@staticmethod
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def default_number_next():
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return 1
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def get_number_next(self, name):
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if self.sequence.type != 'incremental':
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return
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transaction = Transaction()
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if sql_sequence and not self._strict:
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return transaction.database.sequence_next_number(
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transaction.connection, self._sql_sequence_name)
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else:
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return self.number_next_internal
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@classmethod
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def set_number_next(cls, periods, name, value):
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super(SequencePeriod, cls).write(periods, {
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'number_next_internal': value,
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})
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@property
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def _sql_sequence_name(self):
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'Return SQL sequence name'
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return '%s_%s' % (self._table, self.id)
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@classmethod
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def create(cls, vlist):
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periods = super(SequencePeriod, cls).create(vlist)
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for period, values in zip(periods, vlist):
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if sql_sequence and not cls._strict:
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period.update_sql_sequence(values.get('number_next',
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cls.default_number_next()))
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return periods
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@classmethod
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def write(cls, periods, values, *args):
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super(SequencePeriod, cls).write(periods, values, *args)
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if sql_sequence and not cls._strict:
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actions = iter((periods, values) + args)
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for periods, values in zip(actions, actions):
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for period in periods:
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period.update_sql_sequence(values.get('number_next'))
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@classmethod
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def delete(cls, periods):
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if sql_sequence and not cls._strict:
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for period in periods:
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period.delete_sql_sequence()
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return super(SequencePeriod, cls).delete(periods)
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def create_sql_sequence(self, number_next=None):
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'Create the SQL sequence'
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transaction = Transaction()
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if self.sequence.type != 'incremental':
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return
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if number_next is None:
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number_next = self.number_next
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if sql_sequence:
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transaction.database.sequence_create(transaction.connection,
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self._sql_sequence_name, self.sequence.number_increment,
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number_next)
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def update_sql_sequence(self, number_next=None):
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'Update the SQL sequence'
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transaction = Transaction()
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exist = transaction.database.sequence_exist(
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transaction.connection, self._sql_sequence_name)
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if self.sequence.type != 'incremental':
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if exist:
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self.delete_sql_sequence()
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return
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if not exist:
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self.create_sql_sequence(number_next)
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return
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if number_next is None:
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number_next = self.number_next
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transaction.database.sequence_update(transaction.connection,
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self._sql_sequence_name, self.sequence.number_increment,
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number_next)
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def delete_sql_sequence(self):
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'Delete the SQL sequence'
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transaction = Transaction()
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if self.sequence.type != 'incremental':
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return
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transaction.database.sequence_delete(
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transaction.connection, self._sql_sequence_name)
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def get(self, _lock=False):
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Sequence = Pool().get('ir.sequence')
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cls = self.__class__
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if _lock:
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transaction = Transaction()
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database = transaction.database
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connection = transaction.connection
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if not database.has_select_for():
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database.lock(connection, self._table)
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else:
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table = self.__table__()
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query = table.select(Literal(1),
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where=table.id == self.id,
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for_=For('UPDATE', nowait=True))
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cursor = connection.cursor()
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cursor.execute(*query)
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date = Transaction().context.get('date')
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return '%s%s%s' % (
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Sequence._process(self.prefix or self.sequence.prefix,
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date=date),
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cls._get_sequence(self),
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Sequence._process(self.suffix or self.sequence.suffix,
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date=date),
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)
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@classmethod
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def _get_sequence(cls, period):
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if period.sequence.type == 'incremental':
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if sql_sequence and not cls._strict:
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cursor = Transaction().connection.cursor()
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cursor.execute('SELECT nextval(\'"%s"\')'
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% period._sql_sequence_name)
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number_next, = cursor.fetchone()
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else:
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# Pre-fetch number_next
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number_next = period.number_next_internal
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cls.write([period], {
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'number_next_internal': (number_next
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+ period.sequence.number_increment),
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})
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return '%%0%sd' % period.sequence.padding % number_next
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else:
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raise NotImplementedError()
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def match(self, pattern, match_none=False):
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pattern = pattern.copy()
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date = pattern.get('date')
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if not date:
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return False
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_match = self.start_date <= date <= self.end_date
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_ = pattern.pop('date')
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return _match and super().match(pattern, match_none=match_none)
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class SequenceStrict(metaclass=PoolMeta):
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__name__ = 'ir.sequence.strict'
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# needed due to both models share form view
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periods = fields.Function(
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fields.One2Many('ir.sequence.period', None, 'Periods',
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states={'invisible': Bool(True)}),
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'get_periods')
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def get_periods(self, name=None):
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return []
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