addons/project_long_term/wizard/project_schedule_tasks.py

   1 # -*- coding: utf-8 -*-
   2 ##############################################################################
   3 #
   4 #    OpenERP, Open Source Management Solution
   5 #    Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>).
   6 #
   7 #    This program is free software: you can redistribute it and/or modify
   8 #    it under the terms of the GNU Affero General Public License as
   9 #    published by the Free Software Foundation, either version 3 of the
  10 #    License, or (at your option) any later version.
  11 #
  12 #    This program is distributed in the hope that it will be useful,
  13 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #    GNU Affero General Public License for more details.
  16 #
  17 #    You should have received a copy of the GNU Affero General Public License
  18 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20 ##############################################################################
  21
  22 import datetime
  23 from resource.faces import *
  24 from new import classobj
  25 import operator
  26
  27 from tools.translate import _
  28 from osv import osv, fields
  29
  30 import working_calendar as wkcal
  31
  32 class project_schedule_task(osv.osv_memory):
  33
  34     _name = "project.schedule.tasks"
  35     _description = 'project.schedule.tasks'
  36     _columns = {
  37         'msg': fields.char('Message', size=64)
  38     }
  39     _defaults = {
  40          'msg': 'Task Scheduling Completed Successfully'
  41     }
  42
  43     def default_get(self, cr, uid, fields_list, context=None):
  44         if context is None:
  45             context = {}
  46         res = super(project_schedule_task, self).default_get(cr, uid, fields_list, context)
  47         self.compute_date(cr, uid, context=context)
  48         return res
  49
  50     def create_resources(self, cr, uid, phase, context=None):
  51         """
  52         Return a list of  Resource Class objects for the resources allocated to the phase.
  53         """
  54         resource_objs = []
  55
  56         if context is None:
  57             context = {}
  58
  59         for resource in phase.resource_ids:
  60             res = resource.resource_id
  61             leaves = []
  62             resource_eff = res.time_efficiency
  63             resource_cal = res.calendar_id.id
  64             if resource_cal:
  65                 cal_id  = phase.project_id.resource_calendar_id and phase.project_id.resource_calendar_id.id or False
  66                 leaves = wkcal.compute_leaves(cr, uid, cal_id, res.id, resource_cal, context=context)
  67             resource_objs.append(classobj(res.user_id.name.encode('utf8'), (Resource,),{
  68                                              '__doc__': res.user_id.name,
  69                                              '__name__': res.user_id.name,
  70                                              'vacation': tuple(leaves),
  71                                              'efficiency': resource_eff,
  72                                           }))
  73         return resource_objs
  74
  75     def compute_date(self, cr, uid, context=None):
  76         """
  77         Schedule the tasks according to resource available and priority.
  78         """
  79
  80         phase_obj = self.pool.get('project.phase')
  81         task_obj = self.pool.get('project.task')
  82         user_obj = self.pool.get('res.users')
  83
  84         if context is None:
  85             # It makes no sense to continue on empty context
  86             return { 'warning': _("You must select some project phase to compute on")}
  87
  88         if not 'active_id' in context:
  89             return {}
  90         phase = phase_obj.browse(cr, uid, context['active_id'], context=context)
  91         task_ids = map(lambda x : x.id, (filter(lambda x : x.state in ['open', 'draft', 'pending'] , phase.task_ids)))
  92         if task_ids:
  93             task_ids.sort()
  94             tasks = task_obj.browse(cr, uid, task_ids, context=context)
  95             start_date = str(phase.date_start)
  96             if not phase.date_start:
  97                 if not phase.project_id.date_start:
  98                     start_date = datetime.datetime.now().strftime("%Y-%m-%d")
  99                 else:
 100                     start_date = phase.project_id.date_start
 101             date_start = datetime.datetime.strftime(datetime.datetime.strptime(start_date, "%Y-%m-%d"), "%Y-%m-%d %H:%M")
 102             calendar_id = phase.project_id.resource_calendar_id.id
 103             resources = self.create_resources(cr, uid, phase)
 104             priority_dict = {'0': 1000, '1': 800, '2': 500, '3': 300, '4': 100}
 105             # Create dynamic no of tasks with the resource specified
 106             def create_tasks(j, eff, priorty=500, obj=False):
 107                 def task():
 108                     """
 109                     task is a dynamic method!
 110                     """
 111                     effort = eff
 112                     if obj:
 113                         resource = obj
 114                     priority = priorty
 115                 task.__doc__ = "TaskNO%d" %j
 116                 task.__name__ = "task%d" %j
 117                 return task
 118
 119             # Create a 'Faces' project with all the tasks and resources
 120             def Project():
 121                 title = "Project"
 122                 start = date_start
 123                 try:
 124                     resource = reduce(operator.or_, resources)
 125                 except:
 126                     raise osv.except_osv(_('Error'), _('Phase must have resources assigned !'))
 127                 minimum_time_unit = 1
 128                 if calendar_id:            # If project has working calendar
 129                     working_days = wkcal.compute_working_calendar(cr, uid, calendar_id)
 130                     vacation = tuple(wkcal.compute_leaves(cr, uid, calendar_id))
 131                 # Dynamic creation of tasks
 132                 i = 0
 133                 for each_task in tasks:
 134                     hours = str(each_task.planned_hours )+ 'H'
 135                     if each_task.priority in priority_dict.keys():
 136                         priorty = priority_dict[each_task.priority]
 137                     resc = False
 138                     if each_task.user_id:
 139                         for resrce in resources:
 140                             if resrce.__name__ == each_task.user_id.name:
 141                                 resc = resrce
 142                                 break
 143
 144                     task = create_tasks(i, hours, priorty, resc)
 145                     i += 1
 146
 147             project = BalancedProject(Project)
 148
 149             loop_no = 0
 150             # Write back the computed dates
 151             for t in project:
 152                 s_date = t.start.to_datetime()
 153                 e_date = t.end.to_datetime()
 154                 if loop_no > 0:
 155                     ctx = context.copy()
 156                     ctx.update({'scheduler': True})
 157                     user_id = user_obj.search(cr, uid, [('name', '=', t.booked_resource[0].__name__)])
 158                     task_obj.write(cr, uid, [tasks[loop_no-1].id], {
 159                                                         'date_start': s_date.strftime('%Y-%m-%d %H:%M:%S'),
 160                                                         'date_end': e_date.strftime('%Y-%m-%d %H:%M:%S'),
 161                                                         'user_id': user_id[0]
 162                                                     }, context=ctx)
 163
 164                 loop_no += 1
 165         else:
 166             return {"warning": _("No tasks to compute for this phase") }
 167         return {}
 168
 169 project_schedule_task()
 170
 171 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: