addons/purchase_requisition/purchase_requisition.py

   1 # -*- encoding: utf-8 -*-
   2 ##############################################################################
   3 #
   4 #    OpenERP, Open Source Management Solution
   5 #    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>). All Rights Reserved
   6 #    $Id$
   7 #
   8 #    This program is free software: you can redistribute it and/or modify
   9 #    it under the terms of the GNU Affero General Public License as published by
  10 #    the Free Software Foundation, either version 3 of the License, or
  11 #    (at your option) any later version.
  12 #
  13 #    This program is distributed in the hope that it will be useful,
  14 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 #    GNU Affero General Public License for more details.
  17 #
  18 #    You should have received a copy of the GNU Affero General Public License
  19 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21 ##############################################################################
  22 from datetime import datetime
  23 from dateutil.relativedelta import relativedelta
  24 import time
  25
  26 from openerp.osv import fields,osv
  27 from openerp.tools.translate import _
  28 import openerp.addons.decimal_precision as dp
  29
  30 class purchase_requisition(osv.osv):
  31     _name = "purchase.requisition"
  32     _description="Purchase Requisition"
  33     _inherit = ['mail.thread', 'ir.needaction_mixin']
  34     _columns = {
  35         'name': fields.char('Requisition Reference', size=32,required=True),
  36         'origin': fields.char('Source Document', size=32),
  37         'date_start': fields.datetime('Requisition Date'),
  38         'date_end': fields.datetime('Requisition Deadline'),
  39         'user_id': fields.many2one('res.users', 'Responsible'),
  40         'exclusive': fields.selection([('exclusive','Purchase Requisition (exclusive)'),('multiple','Multiple Requisitions')],'Requisition Type', required=True, help="Purchase Requisition (exclusive): On the confirmation of a purchase order, it cancels the remaining purchase order.\nMultiple Requisitions: It allows to have multiple purchase orders.On confirmation of a purchase order it does not cancel the remaining orders"""),
  41         'description': fields.text('Description'),
  42         'company_id': fields.many2one('res.company', 'Company', required=True),
  43         'purchase_ids' : fields.one2many('purchase.order','requisition_id','Purchase Orders',states={'done': [('readonly', True)]}),
  44         'line_ids' : fields.one2many('purchase.requisition.line','requisition_id','Products to Purchase',states={'done': [('readonly', True)]}),
  45         'warehouse_id': fields.many2one('stock.warehouse', 'Warehouse'),
  46         'state': fields.selection([('draft','New'),('in_progress','Sent to Suppliers'),('cancel','Cancelled'),('done','Purchase Done')],
  47             'Status', track_visibility='onchange', required=True)
  48     }
  49     _defaults = {
  50         'date_start': lambda *args: time.strftime('%Y-%m-%d %H:%M:%S'),
  51         'state': 'draft',
  52         'exclusive': 'multiple',
  53         'company_id': lambda self, cr, uid, c: self.pool.get('res.company')._company_default_get(cr, uid, 'purchase.requisition', context=c),
  54         'user_id': lambda self, cr, uid, c: self.pool.get('res.users').browse(cr, uid, uid, c).id ,
  55         'name': lambda obj, cr, uid, context: obj.pool.get('ir.sequence').get(cr, uid, 'purchase.order.requisition'),
  56     }
  57
  58     def copy(self, cr, uid, id, default=None, context=None):
  59         if not default:
  60             default = {}
  61         default.update({
  62             'state':'draft',
  63             'purchase_ids':[],
  64             'name': self.pool.get('ir.sequence').get(cr, uid, 'purchase.order.requisition'),
  65         })
  66         return super(purchase_requisition, self).copy(cr, uid, id, default, context)
  67
  68     def tender_cancel(self, cr, uid, ids, context=None):
  69         purchase_order_obj = self.pool.get('purchase.order')
  70         for purchase in self.browse(cr, uid, ids, context=context):
  71             for purchase_id in purchase.purchase_ids:
  72                 if str(purchase_id.state) in('draft'):
  73                     purchase_order_obj.action_cancel(cr,uid,[purchase_id.id])
  74         return self.write(cr, uid, ids, {'state': 'cancel'})
  75
  76     def tender_in_progress(self, cr, uid, ids, context=None):
  77         return self.write(cr, uid, ids, {'state':'in_progress'} ,context=context)
  78
  79     def tender_reset(self, cr, uid, ids, context=None):
  80         return self.write(cr, uid, ids, {'state': 'draft'})
  81
  82     def tender_done(self, cr, uid, ids, context=None):
  83         return self.write(cr, uid, ids, {'state':'done', 'date_end':time.strftime('%Y-%m-%d %H:%M:%S')}, context=context)
  84
  85     def _planned_date(self, requisition, delay=0.0):
  86         company = requisition.company_id
  87         date_planned = False
  88         if requisition.date_start:
  89             date_planned = datetime.strptime(requisition.date_start, '%Y-%m-%d %H:%M:%S') - relativedelta(days=company.po_lead)
  90         else:
  91             date_planned = datetime.today() - relativedelta(days=company.po_lead)
  92         if delay:
  93             date_planned -= relativedelta(days=delay)
  94         return date_planned and date_planned.strftime('%Y-%m-%d %H:%M:%S') or False
  95
  96     def _seller_details(self, cr, uid, requisition_line, supplier, context=None):
  97         product_uom = self.pool.get('product.uom')
  98         pricelist = self.pool.get('product.pricelist')
  99         product = requisition_line.product_id
 100         default_uom_po_id = product.uom_po_id.id
 101         qty = product_uom._compute_qty(cr, uid, requisition_line.product_uom_id.id, requisition_line.product_qty, default_uom_po_id)
 102         seller_delay = 0.0
 103         seller_price = False
 104         seller_qty = False
 105         for product_supplier in product.seller_ids:
 106             if supplier.id ==  product_supplier.name and qty >= product_supplier.qty:
 107                 seller_delay = product_supplier.delay
 108                 seller_qty = product_supplier.qty
 109         supplier_pricelist = supplier.property_product_pricelist_purchase or False
 110         seller_price = pricelist.price_get(cr, uid, [supplier_pricelist.id], product.id, qty, supplier.id, {'uom': default_uom_po_id})[supplier_pricelist.id]
 111         if seller_qty:
 112             qty = max(qty,seller_qty)
 113         date_planned = self._planned_date(requisition_line.requisition_id, seller_delay)
 114         return seller_price, qty, default_uom_po_id, date_planned
 115
 116     def make_purchase_order(self, cr, uid, ids, partner_id, context=None):
 117         """
 118         Create New RFQ for Supplier
 119         """
 120         if context is None:
 121             context = {}
 122         assert partner_id, 'Supplier should be specified'
 123         purchase_order = self.pool.get('purchase.order')
 124         purchase_order_line = self.pool.get('purchase.order.line')
 125         res_partner = self.pool.get('res.partner')
 126         fiscal_position = self.pool.get('account.fiscal.position')
 127         supplier = res_partner.browse(cr, uid, partner_id, context=context)
 128         supplier_pricelist = supplier.property_product_pricelist_purchase or False
 129         res = {}
 130         for requisition in self.browse(cr, uid, ids, context=context):
 131             if supplier.id in filter(lambda x: x, [rfq.state <> 'cancel' and rfq.partner_id.id or None for rfq in requisition.purchase_ids]):
 132                  raise osv.except_osv(_('Warning!'), _('You have already one %s purchase order for this partner, you must cancel this purchase order to create a new quotation.') % rfq.state)
 133             location_id = requisition.warehouse_id.lot_input_id.id
 134             context.update({'mail_create_nolog': True})
 135             purchase_id = purchase_order.create(cr, uid, {
 136                         'origin': requisition.name,
 137                         'partner_id': supplier.id,
 138                         'pricelist_id': supplier_pricelist.id,
 139                         'location_id': location_id,
 140                         'company_id': requisition.company_id.id,
 141                         'fiscal_position': supplier.property_account_position and supplier.property_account_position.id or False,
 142                         'requisition_id':requisition.id,
 143                         'notes':requisition.description,
 144                         'warehouse_id':requisition.warehouse_id.id ,
 145             })
 146             purchase_order.message_post(cr, uid, [purchase_id], body=_("RFQ created"), context=context)
 147             res[requisition.id] = purchase_id
 148             for line in requisition.line_ids:
 149                 product = line.product_id
 150                 seller_price, qty, default_uom_po_id, date_planned = self._seller_details(cr, uid, line, supplier, context=context)
 151                 taxes_ids = product.supplier_taxes_id
 152                 taxes = fiscal_position.map_tax(cr, uid, supplier.property_account_position, taxes_ids)
 153                 purchase_order_line.create(cr, uid, {
 154                     'order_id': purchase_id,
 155                     'name': product.partner_ref,
 156                     'product_qty': qty,
 157                     'product_id': product.id,
 158                     'product_uom': default_uom_po_id,
 159                     'price_unit': seller_price,
 160                     'date_planned': date_planned,
 161                     'taxes_id': [(6, 0, taxes)],
 162                 }, context=context)
 163
 164         return res
 165
 166
 167 class purchase_requisition_line(osv.osv):
 168
 169     _name = "purchase.requisition.line"
 170     _description="Purchase Requisition Line"
 171     _rec_name = 'product_id'
 172
 173     _columns = {
 174         'product_id': fields.many2one('product.product', 'Product' ),
 175         'product_uom_id': fields.many2one('product.uom', 'Product Unit of Measure'),
 176         'product_qty': fields.float('Quantity', digits_compute=dp.get_precision('Product Unit of Measure')),
 177         'requisition_id' : fields.many2one('purchase.requisition','Purchase Requisition', ondelete='cascade'),
 178         'company_id': fields.related('requisition_id','company_id',type='many2one',relation='res.company',string='Company', store=True, readonly=True),
 179     }
 180
 181     def onchange_product_id(self, cr, uid, ids, product_id, product_uom_id, context=None):
 182         """ Changes UoM and name if product_id changes.
 183         @param name: Name of the field
 184         @param product_id: Changed product_id
 185         @return:  Dictionary of changed values
 186         """
 187         value = {'product_uom_id': ''}
 188         if product_id:
 189             prod = self.pool.get('product.product').browse(cr, uid, product_id, context=context)
 190             value = {'product_uom_id': prod.uom_id.id,'product_qty':1.0}
 191         return {'value': value}
 192
 193     _defaults = {
 194         'company_id': lambda self, cr, uid, c: self.pool.get('res.company')._company_default_get(cr, uid, 'purchase.requisition.line', context=c),
 195     }
 196
 197 class purchase_order(osv.osv):
 198     _inherit = "purchase.order"
 199     _columns = {
 200         'requisition_id' : fields.many2one('purchase.requisition','Purchase Requisition')
 201     }
 202
 203     def wkf_confirm_order(self, cr, uid, ids, context=None):
 204         res = super(purchase_order, self).wkf_confirm_order(cr, uid, ids, context=context)
 205         proc_obj = self.pool.get('procurement.order')
 206         for po in self.browse(cr, uid, ids, context=context):
 207             if po.requisition_id and (po.requisition_id.exclusive=='exclusive'):
 208                 for order in po.requisition_id.purchase_ids:
 209                     if order.id != po.id:
 210                         proc_ids = proc_obj.search(cr, uid, [('purchase_id', '=', order.id)])
 211                         if proc_ids and po.state=='confirmed':
 212                             proc_obj.write(cr, uid, proc_ids, {'purchase_id': po.id})
 213                         self.signal_purchase_cancel(cr, uid, [order.id])
 214                     po.requisition_id.tender_done(context=context)
 215         return res
 216
 217
 218 class product_product(osv.osv):
 219     _inherit = 'product.product'
 220
 221     _columns = {
 222         'purchase_requisition': fields.boolean('Purchase Requisition', help="Check this box to generates purchase requisition instead of generating requests for quotation from procurement.")
 223     }
 224     _defaults = {
 225         'purchase_requisition': False
 226     }
 227
 228
 229 class procurement_order(osv.osv):
 230     _inherit = 'procurement.order'
 231     _columns = {
 232         'requisition_id': fields.many2one('purchase.requisition', 'Latest Requisition')
 233     }
 234
 235     def _get_warehouse(self, procurement, user_company):
 236         """
 237             Return the warehouse containing the procurment stock location (or one of it ancestors)
 238             If none match, returns then first warehouse of the company
 239         """
 240         # NOTE This method is a copy of the one on the procurement.order defined in purchase
 241         #      module. It's been copied to ensure it been always available, even if module
 242         #      purchase is not up to date.
 243         #      Do not forget to update both version in case of modification.
 244         company_id = (procurement.company_id or user_company).id
 245         domains = [
 246             [
 247                 '&', ('company_id', '=', company_id),
 248                 '|', '&', ('lot_stock_id.parent_left', '<', procurement.location_id.parent_left),
 249                           ('lot_stock_id.parent_right', '>', procurement.location_id.parent_right),
 250                      ('lot_stock_id', '=', procurement.location_id.id)
 251             ],
 252             [('company_id', '=', company_id)]
 253         ]
 254
 255         cr, uid = procurement._cr, procurement._uid
 256         context = procurement._context
 257         Warehouse = self.pool['stock.warehouse']
 258         for domain in domains:
 259             ids = Warehouse.search(cr, uid, domain, context=context)
 260             if ids:
 261                 return ids[0]
 262         return False
 263
 264     def make_po(self, cr, uid, ids, context=None):
 265         res = {}
 266         requisition_obj = self.pool.get('purchase.requisition')
 267         non_requisition = []
 268         for procurement in self.browse(cr, uid, ids, context=context):
 269             if procurement.product_id.purchase_requisition:
 270                 user_company = self.pool['res.users'].browse(cr, uid, uid, context=context).company_id
 271                 req = res[procurement.id] = requisition_obj.create(cr, uid, {
 272                     'origin': procurement.origin,
 273                     'date_end': procurement.date_planned,
 274                     'warehouse_id': self._get_warehouse(procurement, user_company),
 275                     'company_id': procurement.company_id.id,
 276                     'line_ids': [(0, 0, {
 277                         'product_id': procurement.product_id.id,
 278                         'product_uom_id': procurement.product_uom.id,
 279                         'product_qty': procurement.product_qty
 280
 281                     })],
 282                 })
 283                 procurement.write({
 284                     'state': 'running',
 285                     'requisition_id': req
 286                 })
 287             else:
 288                 non_requisition.append(procurement.id)
 289
 290         if non_requisition:
 291             res.update(super(procurement_order, self).make_po(cr, uid, non_requisition, context=context))
 292
 293         return res
 294
 295
 296 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: