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[IMP] decimal_precision: performance improvement: 

* redirected 'get_precision.change_digit'
    function to use 'precision_get' method from 'decimal_precision' class
  * 'precision_get' method now uses a cache (invalidated in write)
  * added an sql constraint: name should be unique

bzr revid: olt@tinyerp.com-20100921124435-5vrd80zpucjaxya4
This commit is contained in:
olt@tinyerp.com 2010-09-21 14:44:35 +02:00
parent c96998f517
commit ac25124ddd
1 changed files with 14 additions and 3 deletions
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17
addons/decimal_precision/decimal_precision.py
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@ -20,6 +20,9 @@
##############################################################################
from osv import osv, fields
from tools import cache
import pooler
class decimal_precision(osv.osv):
_name = 'decimal.precision'
@ -30,6 +33,12 @@ class decimal_precision(osv.osv):
_defaults = {
'digits': lambda *a : 2,
}
_sql_constraints = [
('name_uniq', 'unique (name)', """The Usage of the decimal precision must be unique!"""),
]
@cache(skiparg=3)
def precision_get(self, cr, uid, application):
cr.execute('select digits from decimal_precision where name=%s', (application,))
res = cr.fetchone()
@ -42,11 +51,13 @@ class decimal_precision(osv.osv):
if isinstance(col, fields.float):
col.digits_change(cr)
return res
decimal_precision()
def get_precision(application):
def change_digit(cr):
cr.execute('select digits from decimal_precision where name=%s', (application,))
res = cr.fetchone()
return (16,res and res[0] or 2)
return pooler.get_pool(cr.dbname).get('decimal.precision').precision_get(cr, 1, application)
return change_digit