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