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 import netsvc
  26
  27 from osv import fields,osv
  28 from tools.translate import _
  29 import decimal_precision as dp
  30
  31 class purchase_requisition(osv.osv):
  32     _name = "purchase.requisition"
  33     _description="Purchase Requisition"
  34     _columns = {
  35         'name': fields.char('Requisition Reference', size=32,required=True),
  36         'origin': fields.char('Source', 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.\nPurchase Requisition(Multiple):  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','In Progress'),('cancel','Cancelled'),('done','Done')], 'Status', required=True)
  47     }
  48     _defaults = {
  49         'date_start': time.strftime('%Y-%m-%d %H:%M:%S'),
  50         'state': 'draft',
  51         'exclusive': 'multiple',
  52         'company_id': lambda self, cr, uid, c: self.pool.get('res.company')._company_default_get(cr, uid, 'purchase.requisition', context=c),
  53         'user_id': lambda self, cr, uid, c: self.pool.get('res.users').browse(cr, uid, uid, c).id ,
  54         'name': lambda obj, cr, uid, context: obj.pool.get('ir.sequence').get(cr, uid, 'purchase.order.requisition'),
  55     }
  56
  57     def copy(self, cr, uid, id, default=None, context=None):
  58         if not default:
  59             default = {}
  60         default.update({
  61             'state':'draft',
  62             'purchase_ids':[],
  63             'name': self.pool.get('ir.sequence').get(cr, uid, 'purchase.order.requisition'),
  64         })
  65         return super(purchase_requisition, self).copy(cr, uid, id, default, context)
  66     def tender_cancel(self, cr, uid, ids, context=None):
  67         purchase_order_obj = self.pool.get('purchase.order')
  68         for purchase in self.browse(cr, uid, ids, context=context):
  69             for purchase_id in purchase.purchase_ids:
  70                 if str(purchase_id.state) in('draft','wait'):
  71                     purchase_order_obj.action_cancel(cr,uid,[purchase_id.id])
  72         self.write(cr, uid, ids, {'state': 'cancel'})
  73         return True
  74
  75     def tender_in_progress(self, cr, uid, ids, context=None):
  76         self.write(cr, uid, ids, {'state':'in_progress'} ,context=context)
  77         return True
  78
  79     def tender_reset(self, cr, uid, ids, context=None):
  80         self.write(cr, uid, ids, {'state': 'draft'})
  81         return True
  82
  83     def tender_done(self, cr, uid, ids, context=None):
  84         self.write(cr, uid, ids, {'state':'done', 'date_end':time.strftime('%Y-%m-%d %H:%M:%S')}, context=context)
  85         return True
  86
  87     def _planned_date(self, requisition, delay=0.0):
  88         company = requisition.company_id
  89         date_planned = False
  90         if requisition.date_start:
  91             date_planned = datetime.strptime(requisition.date_start, '%Y-%m-%d %H:%M:%S') - relativedelta(days=company.po_lead)
  92         else:
  93             date_planned = datetime.today() - relativedelta(days=company.po_lead)
  94         if delay:
  95             date_planned -= relativedelta(days=delay)
  96         return date_planned and date_planned.strftime('%Y-%m-%d %H:%M:%S') or False
  97
  98     def _seller_details(self, cr, uid, requisition_line, supplier, context=None):
  99         product_uom = self.pool.get('product.uom')
 100         pricelist = self.pool.get('product.pricelist')
 101         supplier_info = self.pool.get("product.supplierinfo")
 102         product = requisition_line.product_id
 103         default_uom_po_id = product.uom_po_id.id
 104         qty = product_uom._compute_qty(cr, uid, requisition_line.product_uom_id.id, requisition_line.product_qty, default_uom_po_id)
 105         seller_delay = 0.0
 106         seller_price = False
 107         seller_qty = False
 108         for product_supplier in product.seller_ids:
 109             if supplier.id ==  product_supplier.name and qty >= product_supplier.qty:
 110                 seller_delay = product_supplier.delay
 111                 seller_qty = product_supplier.qty
 112         supplier_pricelist = supplier.property_product_pricelist_purchase or False
 113         seller_price = pricelist.price_get(cr, uid, [supplier_pricelist.id], product.id, qty, False, {'uom': default_uom_po_id})[supplier_pricelist.id]
 114         if seller_qty:
 115             qty = max(qty,seller_qty)
 116         date_planned = self._planned_date(requisition_line.requisition_id, seller_delay)
 117         return seller_price, qty, default_uom_po_id, date_planned
 118
 119     def make_purchase_order(self, cr, uid, ids, partner_id, context=None):
 120         """
 121         Create New RFQ for Supplier
 122         """
 123         if context is None:
 124             context = {}
 125         assert partner_id, 'Supplier should be specified'
 126         purchase_order = self.pool.get('purchase.order')
 127         purchase_order_line = self.pool.get('purchase.order.line')
 128         res_partner = self.pool.get('res.partner')
 129         fiscal_position = self.pool.get('account.fiscal.position')
 130         supplier = res_partner.browse(cr, uid, partner_id, context=context)
 131         supplier_pricelist = supplier.property_product_pricelist_purchase or False
 132         res = {}
 133         for requisition in self.browse(cr, uid, ids, context=context):
 134             if supplier.id in filter(lambda x: x, [rfq.state <> 'cancel' and rfq.partner_id.id or None for rfq in requisition.purchase_ids]):
 135                  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)
 136             location_id = requisition.warehouse_id.lot_input_id.id
 137             purchase_id = purchase_order.create(cr, uid, {
 138                         'origin': requisition.name,
 139                         'partner_id': supplier.id,
 140                         'pricelist_id': supplier_pricelist.id,
 141                         'location_id': location_id,
 142                         'company_id': requisition.company_id.id,
 143                         'fiscal_position': supplier.property_account_position and supplier.property_account_position.id or False,
 144                         'requisition_id':requisition.id,
 145                         'notes':requisition.description,
 146                         'warehouse_id':requisition.warehouse_id.id ,
 147             })
 148             res[requisition.id] = purchase_id
 149             for line in requisition.line_ids:
 150                 product = line.product_id
 151                 seller_price, qty, default_uom_po_id, date_planned = self._seller_details(cr, uid, line, supplier, context=context)
 152                 taxes_ids = product.supplier_taxes_id
 153                 taxes = fiscal_position.map_tax(cr, uid, supplier.property_account_position, taxes_ids)
 154                 purchase_order_line.create(cr, uid, {
 155                     'order_id': purchase_id,
 156                     'name': product.partner_ref,
 157                     'product_qty': qty,
 158                     'product_id': product.id,
 159                     'product_uom': default_uom_po_id,
 160                     'price_unit': seller_price,
 161                     'date_planned': date_planned,
 162                     'notes': product.description_purchase,
 163                     'taxes_id': [(6, 0, taxes)],
 164                 }, context=context)
 165
 166         return res
 167
 168 purchase_requisition()
 169
 170 class purchase_requisition_line(osv.osv):
 171
 172     _name = "purchase.requisition.line"
 173     _description="Purchase Requisition Line"
 174     _rec_name = 'product_id'
 175
 176     _columns = {
 177         'product_id': fields.many2one('product.product', 'Product' ),
 178         'product_uom_id': fields.many2one('product.uom', 'Product Unit of Measure'),
 179         'product_qty': fields.float('Quantity', digits_compute=dp.get_precision('Product Unit of Measure')),
 180         'requisition_id' : fields.many2one('purchase.requisition','Purchase Requisition', ondelete='cascade'),
 181         'company_id': fields.related('requisition_id','company_id',type='many2one',relation='res.company',string='Company', store=True, readonly=True),
 182     }
 183
 184     def onchange_product_id(self, cr, uid, ids, product_id,product_uom_id, context=None):
 185         """ Changes UoM and name if product_id changes.
 186         @param name: Name of the field
 187         @param product_id: Changed product_id
 188         @return:  Dictionary of changed values
 189         """
 190         value = {'product_uom_id': ''}
 191         if product_id:
 192             prod = self.pool.get('product.product').browse(cr, uid, product_id, context=context)
 193             value = {'product_uom_id': prod.uom_id.id,'product_qty':1.0}
 194         return {'value': value}
 195
 196     _defaults = {
 197         'company_id': lambda self, cr, uid, c: self.pool.get('res.company')._company_default_get(cr, uid, 'purchase.requisition.line', context=c),
 198     }
 199 purchase_requisition_line()
 200
 201 class purchase_order(osv.osv):
 202     _inherit = "purchase.order"
 203     _columns = {
 204         'requisition_id' : fields.many2one('purchase.requisition','Purchase Requisition')
 205     }
 206     def wkf_confirm_order(self, cr, uid, ids, context=None):
 207         res = super(purchase_order, self).wkf_confirm_order(cr, uid, ids, context=context)
 208         proc_obj = self.pool.get('procurement.order')
 209         for po in self.browse(cr, uid, ids, context=context):
 210             if po.requisition_id and (po.requisition_id.exclusive=='exclusive'):
 211                 for order in po.requisition_id.purchase_ids:
 212                     if order.id<>po.id:
 213                         proc_ids = proc_obj.search(cr, uid, [('purchase_id', '=', order.id)])
 214                         if proc_ids and po.state=='confirmed':
 215                             proc_obj.write(cr, uid, proc_ids, {'purchase_id': po.id})
 216                         wf_service = netsvc.LocalService("workflow")
 217                         wf_service.trg_validate(uid, 'purchase.order', order.id, 'purchase_cancel', cr)
 218                     po.requisition_id.tender_done(context=context)
 219         return res
 220
 221 purchase_order()
 222
 223 class product_product(osv.osv):
 224     _inherit = 'product.product'
 225
 226     _columns = {
 227         'purchase_requisition': fields.boolean('Purchase Requisition', help="Check this box so that requisitions generates purchase requisitions instead of directly requests for quotations.")
 228     }
 229     _defaults = {
 230         'purchase_requisition': False
 231     }
 232
 233 product_product()
 234
 235 class procurement_order(osv.osv):
 236
 237     _inherit = 'procurement.order'
 238     _columns = {
 239         'requisition_id' : fields.many2one('purchase.requisition','Latest Requisition')
 240     }
 241     def make_po(self, cr, uid, ids, context=None):
 242         sequence_obj = self.pool.get('ir.sequence')
 243         res = super(procurement_order, self).make_po(cr, uid, ids, context=context)
 244         for proc_id, po_id in res.items():
 245             procurement = self.browse(cr, uid, proc_id, context=context)
 246             requisition_id=False
 247             if procurement.product_id.purchase_requisition:
 248                 requisition_id=self.pool.get('purchase.requisition').create(cr, uid, {
 249                     'name': sequence_obj.get(cr, uid, 'purchase.order.requisition'),
 250                     'origin': procurement.origin,
 251                     'date_end': procurement.date_planned,
 252                     'warehouse_id':procurement.purchase_id and procurement.purchase_id.warehouse_id.id,
 253                     'company_id':procurement.company_id.id,
 254                     'line_ids': [(0,0,{
 255                         'product_id': procurement.product_id.id,
 256                         'product_uom_id': procurement.product_uom.id,
 257                         'product_qty': procurement.product_qty
 258
 259                     })],
 260                     'purchase_ids': [(6,0,[po_id])]
 261                 })
 262             self.write(cr,uid,[proc_id],{'requisition_id':requisition_id},context=context)
 263         return res
 264
 265 procurement_order()
 266
 267 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: