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 report.render import render
  23 from report.interface import report_int
  24 from pychart import *
  25 from mx.DateTime import *
  26 from report.misc import choice_colors
  27 import time, mx
  28 import random
  29 import StringIO
  30
  31
  32 theme.use_color = 1
  33 #theme.scale = 2
  34 random.seed(0)
  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 = Date(*map(int, start.split("-"))).year*12+Date(*map(int, start.split("-"))).month
  56             z = Date(*map(int,  stop.split("-"))).year*12+Date(*map(int,  stop.split("-"))).month+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':(Date(year, month, 2) + RelativeDateTime(day=1)).strftime('%Y-%m-%d'),
  67                     'stop' :(Date(year, month, 2) + RelativeDateTime(day=-1)).strftime('%Y-%m-%d'),
  68                 }
  69             return dates
  70         elif time_unit == 'week':
  71             dates = {}
  72             a = Date(*map(int, start.split("-"))).iso_week[0]*52+Date(*map(int, start.split("-"))).iso_week[1]
  73             z = Date(*map(int,  stop.split("-"))).iso_week[0]*52+Date(*map(int,  stop.split("-"))).iso_week[1]
  74             for i in range(a,z+1):
  75                 year = i/52
  76                 week = i%52
  77                 dates[i] = {
  78                     'name' :"Week #%d" % week,
  79                     'start':ISO.WeekTime(year, week, 1).strftime('%Y-%m-%d'),
  80                     'stop' :ISO.WeekTime(year, week, 7).strftime('%Y-%m-%d'),
  81                 }
  82             return dates
  83         else: # time_unit = day
  84             dates = {}
  85             a = Date(*map(int, start.split("-")))
  86             z = Date(*map(int, stop.split("-")))
  87             i = a
  88             while i <= z:
  89                 dates[map(int,i.strftime('%Y%m%d').split())[0]] = {
  90                     'name' :i.strftime('%Y-%m-%d'),
  91                     'start':i.strftime('%Y-%m-%d'),
  92                     'stop' :i.strftime('%Y-%m-%d'),
  93                 }
  94                 i = i + RelativeDateTime(days=+1)
  95             return dates
  96         return {}
  97
  98     def create(self, cr, uid, ids, datas, context={}):
  99         assert len(ids), 'You should provide some ids!'
 100         colors = choice_colors(len(ids))
 101         cr.execute(
 102             "SELECT MAX(mrp_production.date_planned) AS stop,MIN(mrp_production.date_planned) AS start "\
 103             "FROM mrp_workcenter, mrp_production, mrp_production_workcenter_line "\
 104             "WHERE mrp_production_workcenter_line.production_id=mrp_production.id "\
 105             "AND mrp_production_workcenter_line.workcenter_id=mrp_workcenter.id "\
 106             "AND mrp_production.state NOT IN ('cancel','done') "\
 107             "AND mrp_workcenter.id =ANY(%s)",(ids,))
 108         res = cr.dictfetchone()
 109         if not res['stop']:
 110             res['stop'] = time.strftime('%Y-%m-%d %H:%M:%S')
 111         if not res['start']:
 112             res['start'] = time.strftime('%Y-%m-%d %H:%M:%S')
 113         dates = self._compute_dates(datas['form']['time_unit'], res['start'][:10], res['stop'][:10])
 114         dates_list = dates.keys()
 115         dates_list.sort()
 116         x_index = []
 117         for date in dates_list:
 118             x_index.append((dates[date]['name'], date))
 119         pdf_string = StringIO.StringIO()
 120         can = canvas.init(fname=pdf_string, format='pdf')
 121         chart_object.set_defaults(line_plot.T, line_style=None)
 122         if datas['form']['measure_unit'] == 'cycles':
 123             y_label = "Load (Cycles)"
 124         else:
 125             y_label = "Load (Hours)"
 126         ar = area.T(legend = legend.T(),
 127                     x_grid_style = line_style.gray70_dash1,
 128                     x_axis = axis.X(label="Periods", format="/a90/hC%s"),
 129                     x_coord = category_coord.T(x_index, 0),
 130                     y_axis = axis.Y(label=y_label),
 131                     y_range = (0, None),
 132                     size = (640,480))
 133         bar_plot.fill_styles.reset();
 134
 135         # select workcenters
 136         cr.execute(
 137             "SELECT id, name FROM mrp_workcenter " \
 138             "WHERE id=ANY(%s)" \
 139             "ORDER BY mrp_workcenter.id" ,(ids,))
 140         workcenters = cr.dictfetchall()
 141
 142         data = []
 143         for date in dates_list:
 144             vals = []
 145             for workcenter in workcenters:
 146                 cr.execute("SELECT SUM(mrp_production_workcenter_line.hour) AS hours, SUM(mrp_production_workcenter_line.cycle) AS cycles, \
 147                                 mrp_workcenter.name AS name, mrp_workcenter.id AS id \
 148                             FROM mrp_production_workcenter_line, mrp_production, mrp_workcenter \
 149                             WHERE (mrp_production_workcenter_line.production_id=mrp_production.id) \
 150                                 AND (mrp_production_workcenter_line.workcenter_id=mrp_workcenter.id) \
 151                                 AND (mrp_workcenter.id=%s) \
 152                                 AND (mrp_production.date_planned BETWEEN %s AND %s) \
 153                             GROUP BY mrp_production_workcenter_line.workcenter_id, mrp_workcenter.name, mrp_workcenter.id \
 154                             ORDER BY mrp_workcenter.id", (workcenter['id'], dates[date]['start'] + ' 00:00:00', dates[date]['stop'] + ' 23:59:59'))
 155                 res = cr.dictfetchall()
 156                 if not res:
 157                     vals.append(0.0)
 158                 else:
 159                     if datas['form']['measure_unit'] == 'cycles':
 160                         vals.append(res[0]['cycles'] or 0.0)
 161                     else:
 162                         vals.append(res[0]['hours'] or 0.0)
 163
 164             toto = [dates[date]['name']]
 165             for val in vals:
 166                 toto.append(val)
 167             data.append(toto)
 168
 169         workcenter_num = 0
 170         for workcenter in workcenters:
 171             f = fill_style.Plain()
 172             f.bgcolor = colors[workcenter_num]
 173             ar.add_plot(bar_plot.T(label=workcenter['name'], data=data, fill_style=f, hcol=workcenter_num+1, cluster=(workcenter_num, len(res))))
 174             workcenter_num += 1
 175
 176         #plot = bar_plot.T(label=workcenter['name'], data=data, hcol=1, fill_style=fill_style.white, cluster=(color_index,len(ids)))
 177         if (not data) or (len(data[0]) <= 1):
 178             ar = self._empty_graph(time.strftime('%Y-%m-%d'))
 179         ar.draw(can)
 180         # close canvas so that the file is written to "disk"
 181         can.close()
 182         self.obj = external_pdf(pdf_string.getvalue())
 183         self.obj.render()
 184         pdf_string.close()
 185         return (self.obj.pdf, 'pdf')
 186
 187     def _empty_graph(self, date):
 188         data = [[date, 0]]
 189         ar = area.T(x_coord = category_coord.T(data, 0), y_range = (0, None),
 190                     x_axis = axis.X(label="Periods"),
 191                     y_axis = axis.Y(label="Load"))
 192         ar.add_plot(bar_plot.T(data = data, label="No production order"))
 193         return ar
 194
 195 report_custom('report.mrp.workcenter.load')
 196
 197
 198 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
 199