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# -*- coding: utf-8 -*-
##############################################################################
#
# OpenERP, Open Source Management Solution
# Copyright (C) 2013 CodUP (<http://codup.com>).
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################
import time
import calendar
from openerp.osv import fields, osv
class mro_order(osv.osv):
_inherit = 'mro.order'
MAINTENANCE_TYPE_SELECTION = [
('bm', 'Breakdown'),
('cm', 'Corrective'),
('pm', 'Preventive')
]
_columns = {
'maintenance_type': fields.selection(MAINTENANCE_TYPE_SELECTION, 'Maintenance Type', required=True, readonly=True, states={'draft': [('readonly', False)]}),
}
def find_step(self, start, end, tmin, tmax):
M = round(2*(end - start)/(tmin + tmax),0)
if M != 0:
step = (end - start)/M
if step < tmin:
M = M - 1
if M != 0:
step = (end - start)/M
if step < tmin or step > tmax: step = tmin
elif step > tmax:
M = M + 1
step = (end - start)/M
if step < tmin or step > tmax: step = tmax
else: step = tmin
return step
def replan_pm(self, cr, uid, context=None):
rule_obj = self.pool.get('mro.pm.rule')
meter_obj = self.pool.get('mro.pm.meter')
ids = rule_obj.search(cr, uid, [])
for rule in rule_obj.browse(cr,uid,ids,context=context):
tasks = rule.pm_rules_line_ids
if rule.meter_id.state != 'reading' or not len(tasks):
continue
tasks.sort(lambda y,x: cmp(x.meter_interval_id.interval_max, y.meter_interval_id.interval_max))
K = 3600.0*24
hf = len(tasks)-1
lf = 0
task_ids = []
Ci = []
Imin = []
Imax = []
Si = []
Dmin = []
Dmax = []
Dopt = []
for task in tasks:
task_ids.append(task.task_id.id)
order_ids = self.search(cr, uid,
[('asset_id', '=', rule.asset_id.id),
('state', 'not in', ('draft','cancel')),
('maintenance_type', '=', 'pm'),
('task_id', 'in', task_ids)],
limit=1, order='date_execution desc')
if len(order_ids) > 0:
date = self.browse(cr, uid, order_ids[0], context=context).date_execution
Ci.append(K*meter_obj.get_reading(cr, uid, rule.meter_id.id, date))
else: Ci.append(0)
Imin.append(K*task.meter_interval_id.interval_min)
Imax.append(K*task.meter_interval_id.interval_max)
Si.append(0)
Dmin.append(0)
Dmax.append(0)
Dopt.append(0)
C = K*rule.meter_id.total_value
Dc = 1.0*calendar.timegm(time.strptime(rule.meter_id.date, "%Y-%m-%d"))
N = rule.meter_id.utilization
Hp = 3600.0*24*31*rule.horizon
Dn = 1.0*calendar.timegm(time.strptime(time.strftime('%Y-%m-%d',time.gmtime()),"%Y-%m-%d"))
Si[lf] = Imin[lf]
for i in range(hf):
Si[i+1] = self.find_step(Ci[i+1], Ci[i] + Si[i], Imin[i+1], Imax[i+1])
for i in range(hf+1):
Dmin[i] = Dc + (Imin[i] - C + Ci[i])/N
Dmax[i] = Dmin[i] + (Imax[i] - Imin[i])/N
Dopt[i] = Dc + (Si[i] - C + Ci[i])/N
Dp = Dopt[hf]
for i in range(hf):
if Dp > Dmax[i]: Dp = Dmax[i]
if Dp<Dn: Dp=Dn
Cp = C + (Dp - Dc)*N
delta = Cp - Ci[hf]
order_ids = self.search(cr, uid,
[('asset_id', '=', rule.asset_id.id),
('state', '=', 'draft'),
('maintenance_type', '=', 'pm'),
('task_id', 'in', task_ids)],
order='date_execution')
for order in self.browse(cr, uid, order_ids, context=context):
Tp = time.strftime('%Y-%m-%d %H:%M:%S',time.gmtime(Dp))
values = {
'date_planned':Tp,
'date_scheduled':Tp,
'date_execution':Tp,
'origin': rule.name,
'state': 'draft',
'maintenance_type': 'pm',
'asset_id': rule.asset_id.id,
}
task = tasks[hf].task_id
Ci[hf] = Cp
Si[hf] = self.find_step(Ci[hf], Ci[hf-1] + Si[hf-1], Imin[hf], Imax[hf])
for i in range(hf):
if Dmin[i] < Dp + (Si[hf]-Imax[i]+Imin[i])/N:
task = tasks[i].task_id
for j in range(hf-i):
Ci[i+j] = Cp
for j in range(hf-i):
Si[i+j] = self.find_step(Ci[i+j], Ci[i+j-1] + Si[i+j-1], Imin[i+j], Imax[i+j])
Dmin[i+j] = Dp + Imin[i+j]/N
Dmax[i+j] = Dp + Imax[i+j]/N
Dopt[i+j] = Dp + Si[i+j]/N
break
Si[hf] = self.find_step(Ci[hf], Ci[hf-1] + Si[hf-1], Imin[hf], Imax[hf])
Dmin[hf] = Dp + Imin[hf]/N
Dmax[hf] = Dp + Imax[hf]/N
Dopt[hf] = Dp + Si[hf]/N
values['task_id'] = task.id
values['description'] = task.name
values['tools_description'] = task.tools_description
values['labor_description'] = task.labor_description
values['operations_description'] = task.operations_description
values['documentation_description'] = task.documentation_description
parts_lines = [[2,line.id] for line in order.parts_lines]
for line in task.parts_lines:
parts_lines.append([0,0,{
'name': line.name,
'parts_id': line.parts_id.id,
'parts_qty': line.parts_qty,
'parts_uom': line.parts_uom.id,
}])
values['parts_lines'] = parts_lines
self.write(cr, uid, [order.id], values)
Dp = Dopt[hf]
for i in range(hf):
if Dp > Dmax[i]: Dp = Dmax[i]
Co = Cp
Cp = C + (Dp - Dc)*N
delta = Cp - Co
Dhp = Dn + Hp
while Dp < Dhp:
Tp = time.strftime('%Y-%m-%d %H:%M:%S',time.gmtime(Dp))
values = {
'date_planned':Tp,
'date_scheduled':Tp,
'date_execution':Tp,
'origin': rule.name,
'state': 'draft',
'maintenance_type': 'pm',
'asset_id': rule.asset_id.id,
}
task = tasks[hf].task_id
Ci[hf] = Cp
Si[hf] = self.find_step(Ci[hf], Ci[hf-1] + Si[hf-1], Imin[hf], Imax[hf])
for i in range(hf):
if Dmin[i] < Dp + (Si[hf]-Imax[i]+Imin[i])/N:
task = tasks[i].task_id
for j in range(hf-i):
Ci[i+j] = Cp
for j in range(hf-i):
Si[i+j] = self.find_step(Ci[i+j], Ci[i+j-1] + Si[i+j-1], Imin[i+j], Imax[i+j])
Dmin[i+j] = Dp + Imin[i+j]/N
Dmax[i+j] = Dp + Imax[i+j]/N
Dopt[i+j] = Dp + Si[i+j]/N
break
Si[hf] = self.find_step(Ci[hf], Ci[hf-1] + Si[hf-1], Imin[hf], Imax[hf])
Dmin[hf] = Dp + Imin[hf]/N
Dmax[hf] = Dp + Imax[hf]/N
Dopt[hf] = Dp + Si[hf]/N
values['task_id'] = task.id
values['description'] = task.name
values['tools_description'] = task.tools_description
values['labor_description'] = task.labor_description
values['operations_description'] = task.operations_description
values['documentation_description'] = task.documentation_description
parts_lines = []
for line in task.parts_lines:
parts_lines.append([0,0,{
'name': line.name,
'parts_id': line.parts_id.id,
'parts_qty': line.parts_qty,
'parts_uom': line.parts_uom.id,
}])
values['parts_lines'] = parts_lines
self.create(cr, uid, values)
Dp = Dopt[hf]
for i in range(hf):
if Dp > Dmax[i]: Dp = Dmax[i]
Co = Cp
Cp = C + (Dp - Dc)*N
delta = Cp - Co
return True
class mro_task(osv.osv):
_inherit = 'mro.task'
MAINTENANCE_TYPE_SELECTION = [
('cm', 'Corrective'),
('pm', 'Preventive')
]
_columns = {
'maintenance_type': fields.selection(MAINTENANCE_TYPE_SELECTION, 'Maintenance Type', required=True),
}
# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
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