addons/mrp/report/workcenter_load.py

   1 # -*- coding: utf-8 -*-
   2 ##############################################################################
   3 #
   4 #    OpenERP, Open Source Management Solution
   5 #    Copyright (C) 2004-2010 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 from openerp.report.render import render
  23 from openerp.report.interface import report_int
  24 import time
  25 from datetime import date, datetime, timedelta
  26 from dateutil.relativedelta import relativedelta
  27
  28 from openerp.report.misc import choice_colors
  29
  30 import StringIO
  31
  32 from pychart import *
  33
  34 theme.use_color = 1
  35
  36 #
  37 # TODO: Bad code, seems buggy, TO CHECK !
  38 #
  39
  40 class external_pdf(render):
  41     def __init__(self, pdf):
  42         render.__init__(self)
  43         self.pdf = pdf
  44         self.output_type='pdf'
  45
  46     def _render(self):
  47         return self.pdf
  48
  49 class report_custom(report_int):
  50     def _compute_dates(self, time_unit, start, stop):
  51         if not stop:
  52             stop = start
  53         if time_unit == 'month':
  54             dates = {}
  55             a = int(start.split("-")[0])*12 + int(start.split("-")[1])
  56             z = int(stop.split("-")[0])*12 + int(stop.split("-")[1]) + 1
  57             for i in range(a,z):
  58                 year = i/12
  59                 month = i%12
  60                 if month == 0:
  61                     year -= 1
  62                     month = 12
  63                 months = {1:"January",2:"February",3:"March",4:"April",5:"May",6:"June",7:"July",8:"August",9:"September",10:"October",11:"November",12:"December"}
  64                 dates[i] = {
  65                     'name' :months[month],
  66                     'start':(datetime(year, month, 2) + relativedelta(day=1)).strftime('%Y-%m-%d'),
  67                     'stop' :(datetime(year, month, 2) + relativedelta(day=31)).strftime('%Y-%m-%d'),
  68                 }
  69             return dates
  70         elif time_unit == 'week':
  71             dates = {}
  72             start_week = date(int(start.split("-")[0]),int(start.split("-")[1]),int(start.split("-")[2])).isocalendar()
  73             end_week = date(int(stop.split("-")[0]),int(stop.split("-")[1]),int(stop.split("-")[2])).isocalendar()
  74             a = int(start.split("-")[0])*52 + start_week[1]
  75             z = int(stop.split("-")[0])*52 + end_week[1]
  76             for i in range(a,z+1):
  77                 year = i/52
  78                 week = i%52
  79                 d = date(year, 1, 1)
  80
  81                 dates[i] = {
  82                     'name' :"Week #%d" % week,
  83                     'start':(d + timedelta(days=-d.weekday(), weeks=week)).strftime('%Y-%m-%d'),
  84                     'stop' :(d + timedelta(days=6-d.weekday(), weeks=week)).strftime('%Y-%m-%d'),
  85                 }
  86             return dates
  87         else: # time_unit = day
  88             dates = {}
  89             a = datetime(int(start.split("-")[0]),int(start.split("-")[1]),int(start.split("-")[2]))
  90             z = datetime(int(stop.split("-")[0]),int(stop.split("-")[1]),int(stop.split("-")[2]))
  91             i = a
  92             while i <= z:
  93                 dates[map(int,i.strftime('%Y%m%d').split())[0]] = {
  94                     'name' :i.strftime('%Y-%m-%d'),
  95                     'start':i.strftime('%Y-%m-%d'),
  96                     'stop' :i.strftime('%Y-%m-%d'),
  97                 }
  98                 i = i + relativedelta(days=+1)
  99             return dates
 100         return {}
 101
 102     def create(self, cr, uid, ids, datas, context=None):
 103         assert len(ids), 'You should provide some ids!'
 104         colors = choice_colors(len(ids))
 105         cr.execute(
 106             "SELECT MAX(mrp_production.date_planned) AS stop,MIN(mrp_production.date_planned) AS start "\
 107             "FROM mrp_workcenter, mrp_production, mrp_production_workcenter_line "\
 108             "WHERE mrp_production_workcenter_line.production_id=mrp_production.id "\
 109             "AND mrp_production_workcenter_line.workcenter_id=mrp_workcenter.id "\
 110             "AND mrp_production.state NOT IN ('cancel','done') "\
 111             "AND mrp_workcenter.id IN %s",(tuple(ids),))
 112         res = cr.dictfetchone()
 113         if not res['stop']:
 114             res['stop'] = time.strftime('%Y-%m-%d %H:%M:%S')
 115         if not res['start']:
 116             res['start'] = time.strftime('%Y-%m-%d %H:%M:%S')
 117         dates = self._compute_dates(datas['form']['time_unit'], res['start'][:10], res['stop'][:10])
 118         dates_list = dates.keys()
 119         dates_list.sort()
 120         x_index = []
 121         for date in dates_list:
 122             x_index.append((dates[date]['name'], date))
 123         pdf_string = StringIO.StringIO()
 124         can = canvas.init(fname=pdf_string, format='pdf')
 125         can.set_title("Work Center Loads")
 126         chart_object.set_defaults(line_plot.T, line_style=None)
 127         if datas['form']['measure_unit'] == 'cycles':
 128             y_label = "Load (Cycles)"
 129         else:
 130             y_label = "Load (Hours)"
 131
 132         # For add the report header on the top of the report.
 133         tb = text_box.T(loc=(300, 500), text="/hL/15/bWork Center Loads", line_style=None)
 134         tb.draw()
 135         ar = area.T(legend = legend.T(),
 136                     x_grid_style = line_style.gray70_dash1,
 137                     x_axis = axis.X(label="Periods", format="/a90/hC%s"),
 138                     x_coord = category_coord.T(x_index, 0),
 139                     y_axis = axis.Y(label=y_label),
 140                     y_range = (0, None),
 141                     size = (640,480))
 142         bar_plot.fill_styles.reset();
 143         # select workcenters
 144         cr.execute(
 145             "SELECT mw.id, rs.name FROM mrp_workcenter mw, resource_resource rs " \
 146             "WHERE mw.id IN %s and mw.resource_id=rs.id " \
 147             "ORDER BY mw.id" ,(tuple(ids),))
 148         workcenters = cr.dictfetchall()
 149
 150         data = []
 151         for date in dates_list:
 152             vals = []
 153             for workcenter in workcenters:
 154                 cr.execute("SELECT SUM(mrp_production_workcenter_line.hour) AS hours, SUM(mrp_production_workcenter_line.cycle) AS cycles, \
 155                                 resource_resource.name AS name, mrp_workcenter.id AS id \
 156                             FROM mrp_production_workcenter_line, mrp_production, mrp_workcenter, resource_resource \
 157                             WHERE (mrp_production_workcenter_line.production_id=mrp_production.id) \
 158                                 AND (mrp_production_workcenter_line.workcenter_id=mrp_workcenter.id) \
 159                                 AND (mrp_workcenter.resource_id=resource_resource.id) \
 160                                 AND (mrp_workcenter.id=%s) \
 161                                 AND (mrp_production.date_planned BETWEEN %s AND %s) \
 162                             GROUP BY mrp_production_workcenter_line.workcenter_id, resource_resource.name, mrp_workcenter.id \
 163                             ORDER BY mrp_workcenter.id", (workcenter['id'], dates[date]['start'] + ' 00:00:00', dates[date]['stop'] + ' 23:59:59'))
 164                 res = cr.dictfetchall()
 165                 if not res:
 166                     vals.append(0.0)
 167                 else:
 168                     if datas['form']['measure_unit'] == 'cycles':
 169                         vals.append(res[0]['cycles'] or 0.0)
 170                     else:
 171                         vals.append(res[0]['hours'] or 0.0)
 172
 173             toto = [dates[date]['name']]
 174             for val in vals:
 175                 toto.append(val)
 176             data.append(toto)
 177
 178         workcenter_num = 0
 179         for workcenter in workcenters:
 180             f = fill_style.Plain()
 181             f.bgcolor = colors[workcenter_num]
 182             ar.add_plot(bar_plot.T(label=workcenter['name'], data=data, fill_style=f, hcol=workcenter_num+1, cluster=(workcenter_num, len(res))))
 183             workcenter_num += 1
 184
 185         if (not data) or (len(data[0]) <= 1):
 186             ar = self._empty_graph(time.strftime('%Y-%m-%d'))
 187         ar.draw(can)
 188         # close canvas so that the file is written to "disk"
 189         can.close()
 190         self.obj = external_pdf(pdf_string.getvalue())
 191         self.obj.render()
 192         pdf_string.close()
 193         return (self.obj.pdf, 'pdf')
 194
 195     def _empty_graph(self, date):
 196         data = [[date, 0]]
 197         ar = area.T(x_coord = category_coord.T(data, 0), y_range = (0, None),
 198                     x_axis = axis.X(label="Periods"),
 199                     y_axis = axis.Y(label="Load"))
 200         ar.add_plot(bar_plot.T(data = data, label="No production order"))
 201         return ar
 202
 203 report_custom('report.mrp.workcenter.load')
 204
 205
 206 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
 207