Raphael Collet
9aad3d873b
The computed value of parameter digits is no longer stored into fields and columns; instead the value is recomputed everytime it is needed. Note that performance is not an issue, since the method `get_precision` of model 'decimal.precision' is cached by the orm. This simplifies the management of digits on fields and saves about 300Kb per registry.
102 lines
3.6 KiB
Python
102 lines
3.6 KiB
Python
# -*- encoding: utf-8 -*-
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##############################################################################
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#
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# OpenERP, Open Source Management Solution
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# Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>).
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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##############################################################################
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import openerp
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from openerp import SUPERUSER_ID
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from openerp import tools
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from openerp.osv import orm, fields
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from openerp.modules.registry import RegistryManager
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class decimal_precision(orm.Model):
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_name = 'decimal.precision'
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_columns = {
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'name': fields.char('Usage', select=True, required=True),
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'digits': fields.integer('Digits', required=True),
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}
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_defaults = {
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'digits': 2,
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}
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_sql_constraints = [
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('name_uniq', 'unique (name)', """Only one value can be defined for each given usage!"""),
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]
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@tools.ormcache(skiparg=3)
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def precision_get(self, cr, uid, application):
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cr.execute('select digits from decimal_precision where name=%s', (application,))
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res = cr.fetchone()
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return res[0] if res else 2
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def clear_cache(self, cr):
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"""clear cache and update models. Notify other workers to restart their registry."""
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self.precision_get.clear_cache(self)
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RegistryManager.signal_registry_change(cr.dbname)
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def create(self, cr, uid, data, context=None):
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res = super(decimal_precision, self).create(cr, uid, data, context=context)
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self.clear_cache(cr)
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return res
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def unlink(self, cr, uid, ids, context=None):
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res = super(decimal_precision, self).unlink(cr, uid, ids, context=context)
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self.clear_cache(cr)
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return res
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def write(self, cr, uid, ids, data, *args, **argv):
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res = super(decimal_precision, self).write(cr, uid, ids, data, *args, **argv)
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self.clear_cache(cr)
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return res
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def get_precision(application):
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def change_digit(cr):
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decimal_precision = openerp.registry(cr.dbname)['decimal.precision']
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res = decimal_precision.precision_get(cr, SUPERUSER_ID, application)
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return (16, res)
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return change_digit
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class DecimalPrecisionFloat(orm.AbstractModel):
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""" Override qweb.field.float to add a `decimal_precision` domain option
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and use that instead of the column's own value if it is specified
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"""
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_inherit = 'ir.qweb.field.float'
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def precision(self, cr, uid, field, options=None, context=None):
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dp = options and options.get('decimal_precision')
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if dp:
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return self.pool['decimal.precision'].precision_get(
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cr, uid, dp)
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return super(DecimalPrecisionFloat, self).precision(
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cr, uid, field, options=options, context=context)
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class DecimalPrecisionTestModel(orm.Model):
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_name = 'decimal.precision.test'
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_columns = {
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'float': fields.float(),
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'float_2': fields.float(digits=(16, 2)),
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'float_4': fields.float(digits=(16, 4)),
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}
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# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
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