diff --git a/addons/point_of_sale/wizard/pos_close_statement.py b/addons/point_of_sale/wizard/pos_close_statement.py
index 82e47a2caa3..02c82a3cf98 100644
--- a/addons/point_of_sale/wizard/pos_close_statement.py
+++ b/addons/point_of_sale/wizard/pos_close_statement.py
@@ -26,7 +26,7 @@ class pos_close_statement(osv.osv_memory):
     _name = 'pos.close.statement'
     _description = 'Close Statements'
 
-    def close_statement(self, cr, uid, ids, context):
+    def close_statement(self, cr, uid, ids, context=None):
         """
              Close the statements
              @param self: The object pointer.
@@ -39,34 +39,33 @@ class pos_close_statement(osv.osv_memory):
         statement_obj = self.pool.get('account.bank.statement')
         journal_obj = self.pool.get('account.journal')
         cr.execute("SELECT DISTINCT journal_id FROM pos_journal_users "
-                    "WHERE user_id=%s ORDER BY journal_id", (uid,))
+                    "WHERE user_id=%s ORDER BY journal_id", (uid, ))
         j_ids = map(lambda x1: x1[0], cr.fetchall())
-        journal_ids = journal_obj.search(cr, uid, [('auto_cash', '=', True), ('type', '=', 'cash'), ('id', 'in', j_ids)])
-        ids = statement_obj.search(cr, uid, [('state', '!=', 'confirm'), ('user_id', '=', uid), ('journal_id', 'in', journal_ids)])
-        for journal in journal_obj.browse(cr, uid, journal_ids):
+        journal_ids = journal_obj.search(cr, uid, [('auto_cash', '=', True), ('type', '=', 'cash'), ('id', 'in', j_ids)], context=context)
+        ids = statement_obj.search(cr, uid, [('state', '!=', 'confirm'), ('user_id', '=', uid), ('journal_id', 'in', journal_ids)], context=context)
+        for journal in journal_obj.browse(cr, uid, journal_ids, context=context):
             if not ids:
                 raise osv.except_osv(_('Message'), _('Registers are already closed.'))
             else:
                 if not journal.check_dtls:
-                    statement_obj.button_confirm_cash(cr, uid, ids, context)
+                    statement_obj.button_confirm_cash(cr, uid, ids, context=context)
 
-        data_obj = self.pool.get('ir.model.data')
-        id2 = data_obj._get_id(cr, uid, 'account', 'view_bank_statement_tree')
-        id3 = data_obj._get_id(cr, uid, 'account', 'view_bank_statement_form2')
-        result = data_obj._get_id(cr, uid, 'point_of_sale', 'view_pos_confirm_cash_statement_filter')
+        id2 = mod_obj._get_id(cr, uid, 'account', 'view_bank_statement_tree')
+        id3 = mod_obj._get_id(cr, uid, 'account', 'view_bank_statement_form2')
+        result = mod_obj._get_id(cr, uid, 'point_of_sale', 'view_pos_confirm_cash_statement_filter')
         search_id = mod_obj.read(cr, uid, result, ['res_id'], context=context)
         if id2:
-            id2 = data_obj.browse(cr, uid, id2, context=context).res_id
+            id2 = mod_obj.browse(cr, uid, id2, context=context).res_id
         if id3:
-            id3 = data_obj.browse(cr, uid, id3, context=context).res_id
+            id3 = mod_obj.browse(cr, uid, id3, context=context).res_id
         return {
-            'domain': "[('id','in'," + str(ids) + ")]",
+            'domain': "[('id', 'in', " + str(ids) + ")]",
             'name': 'Close Statements',
             'view_type': 'form',
-            'view_mode': 'tree,form',
+            'view_mode': 'tree, form',
             'search_view_id': search_id['res_id'],
             'res_model': 'account.bank.statement',
-            'views': [(id2, 'tree'),(id3, 'form')],
+            'views': [(id2, 'tree'), (id3, 'form')],
             'type': 'ir.actions.act_window'
         }
 
diff --git a/addons/point_of_sale/wizard/pos_confirm.py b/addons/point_of_sale/wizard/pos_confirm.py
index de293eaebc7..f4c53d66297 100644
--- a/addons/point_of_sale/wizard/pos_confirm.py
+++ b/addons/point_of_sale/wizard/pos_confirm.py
@@ -28,7 +28,7 @@ class pos_confirm(osv.osv_memory):
     _name = 'pos.confirm'
     _description = 'Point of Sale Confirm'
 
-    def action_confirm(self, cr, uid, ids, context):
+    def action_confirm(self, cr, uid, ids, context=None):
         """
              Confirm the order and close the sales.
              @param self: The object pointer.
@@ -37,7 +37,8 @@ class pos_confirm(osv.osv_memory):
              @param context: A standard dictionary
              @return :Blank dictionary
         """
-
+        if context is None:
+            context = {}
         record_id = context and context.get('active_id', False)
         if record_id:
             if isinstance(record_id, (int, long)):
@@ -47,7 +48,7 @@ class pos_confirm(osv.osv_memory):
 
                 for order_id in order_obj.browse(cr, uid, record_id, context=context):
                     if  order_id.state == 'paid':
-                        order_obj.write(cr, uid, [order_id.id], {'journal_entry': True})
+                        order_obj.write(cr, uid, [order_id.id], {'journal_entry': True}, context=context)
                         order_obj.create_account_move(cr, uid, [order_id.id], context=context)
 
                 wf_service = netsvc.LocalService("workflow")
diff --git a/addons/point_of_sale/wizard/pos_details.py b/addons/point_of_sale/wizard/pos_details.py
index 22d29b469fa..2e272826b4f 100644
--- a/addons/point_of_sale/wizard/pos_details.py
+++ b/addons/point_of_sale/wizard/pos_details.py
@@ -19,9 +19,10 @@
 #
 ##############################################################################
 
+import time
+
 from osv import osv, fields
 from tools.translate import _
-import time
 
 
 class pos_details(osv.osv_memory):
@@ -33,11 +34,11 @@ class pos_details(osv.osv_memory):
         'date_end': fields.date('Date End', required=True)
     }
     _defaults = {
-        'date_start': lambda *a: time.strftime('%Y-%m-%d'),
-        'date_end': lambda *a: time.strftime('%Y-%m-%d'),
+        'date_start': time.strftime('%Y-%m-%d'),
+        'date_end': time.strftime('%Y-%m-%d'),
     }
 
-    def print_report(self, cr, uid, ids, context={}):
+    def print_report(self, cr, uid, ids, context=None):
         """
          To get the date and print the report
          @param self: The object pointer.
@@ -46,12 +47,12 @@ class pos_details(osv.osv_memory):
          @param context: A standard dictionary
          @return : retrun report
         """
-
+        if context is None:
+            context = {}
         datas = {'ids': context.get('active_ids', [])}
-        res = self.read(cr, uid, ids, ['date_start', 'date_end'], context)
+        res = self.read(cr, uid, ids, ['date_start', 'date_end'], context=context)
         res = res and res[0] or {}
         datas['form'] = res
-
         return {
             'type': 'ir.actions.report.xml',
             'report_name': 'pos.details',
diff --git a/addons/point_of_sale/wizard/pos_discount.py b/addons/point_of_sale/wizard/pos_discount.py
index 375b7dc20d4..d92a545a4ab 100644
--- a/addons/point_of_sale/wizard/pos_discount.py
+++ b/addons/point_of_sale/wizard/pos_discount.py
@@ -32,7 +32,7 @@ class pos_discount(osv.osv_memory):
         'discount_notes': fields.char('Discount Notes', size= 128, required=True),
     }
     _defaults = {
-        'discount': lambda *a: 5,
+        'discount': 5,
     }
 
 
@@ -47,11 +47,11 @@ class pos_discount(osv.osv_memory):
         """
         res = super(pos_discount, self).view_init(cr, uid, fields_list, context=context)
         record_id = context and context.get('active_id', False) or False
-        order = self.pool.get('pos.order').browse(cr, uid, record_id)
+        order = self.pool.get('pos.order').browse(cr, uid, record_id, context=context)
         if not order.lines:
                 raise osv.except_osv('Error!','No Order Lines ')
         True
-    def apply_discount(self, cr, uid, ids, context):
+    def apply_discount(self, cr, uid, ids, context=None):
         """
          To give the discount of  product and check the.
 
@@ -61,16 +61,16 @@ class pos_discount(osv.osv_memory):
          @param context: A standard dictionary
          @return : nothing
         """
+        order_ref = self.pool.get('pos.order')
+        order_line_ref = self.pool.get('pos.order.line')
+        if context is None:
+            context = {}
         this = self.browse(cr, uid, ids[0], context=context)
         record_id = context and context.get('active_id', False)
         if isinstance(record_id, (int, long)):
             record_id = [record_id]
 
-        order_ref = self.pool.get('pos.order')
-        order_line_ref = self.pool.get('pos.order.line')
-
         for order in order_ref.browse(cr, uid, record_id, context=context):
-
             for line in order.lines:
                 company_discount = order.company_id.company_discount
                 applied_discount = this.discount
@@ -81,10 +81,7 @@ class pos_discount(osv.osv_memory):
                     notice = 'Minimum Discount'
                 else:
                     notice = this.discount_notes
-
-                res_new = {
-                }
-
+                res_new = {}
                 if this.discount <= company_discount:
                     res_new = {
                         'discount': this.discount,
diff --git a/addons/point_of_sale/wizard/pos_get_sale.py b/addons/point_of_sale/wizard/pos_get_sale.py
index 1cc9675bf84..48bd89bce7f 100644
--- a/addons/point_of_sale/wizard/pos_get_sale.py
+++ b/addons/point_of_sale/wizard/pos_get_sale.py
@@ -28,10 +28,10 @@ class pos_get_sale(osv.osv_memory):
     _description = 'Get From Sale'
 
     _columns = {
-        'picking_id': fields.many2one('stock.picking', 'Sale Order', domain=[('state', 'in', ('assigned', 'confirmed')), ('type', '=', 'out')], context="{'contact_display':'partner'}", required=True),
+        'picking_id': fields.many2one('stock.picking', 'Sale Order', domain=[('state', 'in', ('assigned', 'confirmed')), ('type', '=', 'out')], context="{'contact_display': 'partner'}", required=True),
     }
 
-    def sale_complete(self, cr, uid, ids, context):
+    def sale_complete(self, cr, uid, ids, context=None):
         """
              Select the picking order and add the in Point of sale order
              @param self: The object pointer.
@@ -40,29 +40,29 @@ class pos_get_sale(osv.osv_memory):
              @param context: A standard dictionary
              @return : nothing
         """
-        this = self.browse(cr, uid, ids[0], context=context)
-        record_id = context and context.get('active_id', False)
-
         proxy_pos = self.pool.get('pos.order')
         proxy_pick = self.pool.get('stock.picking')
         proxy_order_line = self.pool.get('pos.order.line')
+        if context is None:
+            context = {}
+        this = self.browse(cr, uid, ids[0], context=context)
+        record_id = context and context.get('active_id', False)
 
         if record_id:
-            order = proxy_pos.browse(cr, uid, record_id, context)
-
+            order = proxy_pos.browse(cr, uid, record_id, context=context)
             if order.state in ('paid', 'invoiced'):
                 raise osv.except_osv(_('UserError '), _("You can't modify this order. It has already been paid"))
 
-            for pick in proxy_pick.browse(cr, uid, [this.picking_id.id], context):
+            for pick in proxy_pick.browse(cr, uid, [this.picking_id.id], context=context):
                 proxy_pos.write(cr, uid, record_id, {
                     'picking_id': this.picking_id.id,
                     'partner_id': pick.address_id and pick.address_id.partner_id.id
-                })
+                }, context=context)
 
             order = proxy_pick.write(cr, uid, [this.picking_id.id], {
                                         'invoice_state': 'none',
                                         'pos_order': record_id
-                                    })
+                                    }, context=context)
 
             for line in pick.move_lines:
                 proxy_order_line.create(cr, uid, {
@@ -72,8 +72,7 @@ class pos_get_sale(osv.osv_memory):
                     'product_id': line.product_id.id,
                     'price_unit': line.sale_line_id.price_unit,
                     'discount': line.sale_line_id.discount,
-                })
-
+                }, context=context)
         return {}
 
 pos_get_sale()
diff --git a/addons/point_of_sale/wizard/pos_open_statement.py b/addons/point_of_sale/wizard/pos_open_statement.py
index 67c5b125768..9bbed850dfc 100644
--- a/addons/point_of_sale/wizard/pos_open_statement.py
+++ b/addons/point_of_sale/wizard/pos_open_statement.py
@@ -26,7 +26,7 @@ class pos_open_statement(osv.osv_memory):
     _name = 'pos.open.statement'
     _description = 'Open Statements'
 
-    def open_statement(self, cr, uid, ids, context):
+    def open_statement(self, cr, uid, ids, context=None):
         """
              Open the statements
              @param self: The object pointer.
@@ -37,20 +37,20 @@ class pos_open_statement(osv.osv_memory):
         """
         data = {}
         mod_obj = self.pool.get('ir.model.data')
-        company_id = self.pool.get('res.users').browse(cr, uid, uid).company_id.id
         statement_obj = self.pool.get('account.bank.statement')
         sequence_obj = self.pool.get('ir.sequence')
         journal_obj = self.pool.get('account.journal')
+        company_id = self.pool.get('res.users').browse(cr, uid, uid, context=context).company_id.id
         cr.execute("SELECT DISTINCT journal_id FROM pos_journal_users "
-                    "WHERE user_id=%s ORDER BY journal_id"% (uid,))
+                    "WHERE user_id = %s ORDER BY journal_id"% (uid, ))
         j_ids = map(lambda x1: x1[0], cr.fetchall())
-        journal_ids = journal_obj.search(cr, uid, [('auto_cash', '=', True), ('type', '=', 'cash'), ('id', 'in', j_ids)])
+        journal_ids = journal_obj.search(cr, uid, [('auto_cash', '=', True), ('type', '=', 'cash'), ('id', 'in', j_ids)], context=context)
 
-        for journal in journal_obj.browse(cr, uid, journal_ids):
-            ids = statement_obj.search(cr, uid, [('state', '!=', 'confirm'), ('user_id', '=', uid), ('journal_id', '=', journal.id)])
+        for journal in journal_obj.browse(cr, uid, journal_ids, context=context):
+            ids = statement_obj.search(cr, uid, [('state', '!=', 'confirm'), ('user_id', '=', uid), ('journal_id', '=', journal.id)], context=context)
             if len(ids):
                 raise osv.except_osv(_('Message'), _('You can not open a Cashbox for "%s".\nPlease close its related Register.' %(journal.name)))
-            
+
             number = ''
             if journal.sequence_id:
                 number = sequence_obj.get_id(cr, uid, journal.sequence_id.id)
@@ -62,27 +62,26 @@ class pos_open_statement(osv.osv_memory):
                          'user_id': uid,
                          'state': 'draft',
                          'name': number })
-            statement_id = statement_obj.create(cr, uid, data)
+            statement_id = statement_obj.create(cr, uid, data, context=context)
             statement_obj.button_open(cr, uid, [statement_id], context)
 
-        data_obj = self.pool.get('ir.model.data')
-        id2 = data_obj._get_id(cr, uid, 'account', 'view_bank_statement_tree')
-        id3 = data_obj._get_id(cr, uid, 'account', 'view_bank_statement_form2')
-        result = data_obj._get_id(cr, uid, 'point_of_sale', 'view_pos_open_cash_statement_filter')
+        id2 = mod_obj._get_id(cr, uid, 'account', 'view_bank_statement_tree')
+        id3 = mod_obj._get_id(cr, uid, 'account', 'view_bank_statement_form2')
+        result = mod_obj._get_id(cr, uid, 'point_of_sale', 'view_pos_open_cash_statement_filter')
         search_id = mod_obj.read(cr, uid, result, ['res_id'], context=context)
         if id2:
-            id2 = data_obj.browse(cr, uid, id2, context=context).res_id
+            id2 = mod_obj.browse(cr, uid, id2, context=context).res_id
         if id3:
-            id3 = data_obj.browse(cr, uid, id3, context=context).res_id
+            id3 = mod_obj.browse(cr, uid, id3, context=context).res_id
 
         return {
-            'domain': "[('state','=','open'),('user_id','=',"+ str(uid) +")]",
+            'domain': "[('state', '=', 'open'),('user_id', '=', "+ str(uid) +")]",
             'name': 'Open Statement',
             'view_type': 'form',
-            'view_mode': 'tree,form',
+            'view_mode': 'tree, form',
             'search_view_id': search_id['res_id'],
             'res_model': 'account.bank.statement',
-            'views': [(id2, 'tree'),(id3, 'form')],
+            'views': [(id2, 'tree'), (id3, 'form')],
             'context': {'search_default_open': 1},
             'type': 'ir.actions.act_window'
         }
diff --git a/addons/point_of_sale/wizard/pos_payment.py b/addons/point_of_sale/wizard/pos_payment.py
index 1c92ad24132..2d9b1a5d402 100644
--- a/addons/point_of_sale/wizard/pos_payment.py
+++ b/addons/point_of_sale/wizard/pos_payment.py
@@ -19,16 +19,18 @@
 #
 ##############################################################################
 
-from osv import osv,fields
+import time
+
+from osv import osv, fields
 from tools.translate import _
 import pos_box_entries
-import time
+
 
 class pos_make_payment(osv.osv_memory):
     _name = 'pos.make.payment'
     _description = 'Point of Sale Payment'
 
-    def default_get(self, cr, uid, fields, context):
+    def default_get(self, cr, uid, fields, context=None):
         """
          To get default values for the object.
          @param self: The object pointer.
@@ -38,40 +40,40 @@ class pos_make_payment(osv.osv_memory):
          @param context: A standard dictionary
          @return: A dictionary which of fields with values.
         """
+        if context is None:
+            context = {}
+        j_obj = self.pool.get('account.journal')
+        order_obj=self.pool.get('pos.order')
         res = super(pos_make_payment, self).default_get(cr, uid, fields, context=context)
-        active_id = context and context.get('active_id',False)
+        active_id = context and context.get('active_id', False)
         if active_id:
-            j_obj = self.pool.get('account.journal')
             cr.execute("SELECT DISTINCT journal_id FROM pos_journal_users "
-                        "WHERE user_id=%d ORDER BY journal_id"% (uid,))
+                        "WHERE user_id = %d ORDER BY journal_id"% (uid, ))
             j_ids = map(lambda x1: x1[0], cr.fetchall())
-            journal = j_obj.search(cr, uid, [('type', '=', 'cash'), ('id', 'in', j_ids)])
-
+            journal = j_obj.search(cr, uid, [('type', '=', 'cash'), ('id', 'in', j_ids)], context=context)
             journal = journal and journal[0] or False
-
-            order_obj=self.pool.get('pos.order')
-            order = order_obj.browse(cr, uid, active_id, context)
+            order = order_obj.browse(cr, uid, active_id, context=context)
             #get amount to pay
             amount = order.amount_total - order.amount_paid
             if amount <= 0.0:
                 context.update({'flag': True})
                 order_obj.action_paid(cr, uid, [active_id], context)
             elif order.amount_paid > 0.0:
-                order_obj.write(cr, uid, [active_id], {'state': 'advance'})
+                order_obj.write(cr, uid, [active_id], {'state': 'advance'}, context=context)
             invoice_wanted_checked = False
 
             current_date = time.strftime('%Y-%m-%d')
 
             if 'journal' in fields:
-                res.update({'journal':journal})
+                res.update({'journal': journal})
             if 'amount' in fields:
-                res.update({'amount':amount})
+                res.update({'amount': amount})
             if 'invoice_wanted' in fields:
-                res.update({'invoice_wanted':invoice_wanted_checked})
+                res.update({'invoice_wanted': invoice_wanted_checked})
             if 'payment_date' in fields:
-                res.update({'payment_date':current_date})
+                res.update({'payment_date': current_date})
             if 'payment_name'  in fields:
-                res.update({'payment_name':'Payment'})
+                res.update({'payment_name': 'Payment'})
             if 'partner_id' in fields:
                 res.update({'partner_id': order.partner_id.id or False})
             if 'pricelist_id' in fields:
@@ -82,7 +84,7 @@ class pos_make_payment(osv.osv_memory):
         super(pos_make_payment, self).view_init(cr, uid, fields_list, context=context)
         active_id = context and context.get('active_id', False) or False
         if active_id:
-            order = self.pool.get('pos.order').browse(cr, uid, active_id)
+            order = self.pool.get('pos.order').browse(cr, uid, active_id, context=context)
             if not order.lines:
                 raise osv.except_osv(_('Error!'),_('No order lines defined for this sale '))
         return True
@@ -99,15 +101,15 @@ class pos_make_payment(osv.osv_memory):
              @return: New arch of view.
 
         """
-
-
         result = super(pos_make_payment, self).fields_view_get(cr, uid, view_id=view_id, view_type=view_type, context=context, toolbar=toolbar,submenu=False)
+        if context is None:
+            context = {}
         active_model = context.get('active_model')
         active_id = context.get('active_id', False)
         if not active_id or (active_model and active_model != 'pos.order'):
             return result
 
-        order = self.pool.get('pos.order').browse(cr, uid, active_id)
+        order = self.pool.get('pos.order').browse(cr, uid, active_id, context=context)
         if order.amount_total == order.amount_paid:
             result['arch'] = """ <form string="Make Payment" colspan="4">
                             <group col="2" colspan="2">
@@ -132,26 +134,25 @@ class pos_make_payment(osv.osv_memory):
             amount = amount - product.list_price
         return {'value': {'amount': amount}}
 
-    def check(self, cr, uid, ids, context):
-
+    def check(self, cr, uid, ids, context=None):
         """Check the order:
         if the order is not paid: continue payment,
         if the order is paid print invoice (if wanted) or ticket.
         """
-        active_id = context and context.get('active_id',False)
         order_obj = self.pool.get('pos.order')
+        active_id = context and context.get('active_id', False)
         order = order_obj.browse(cr, uid, active_id, context)
         amount = order.amount_total - order.amount_paid
-        data =  self.read(cr, uid, ids)[0]
+        data =  self.read(cr, uid, ids, context=context)[0]
         invoice_wanted = data['invoice_wanted']
         is_accompte = data['is_acc']
         # Todo need to check ...
         if is_accompte:
             line_id, price = order_obj.add_product(cr, uid, order.id, data['product_id'], -1.0, context)
             amount = order.amount_total - order.amount_paid - price
-        
+
         if amount != 0.0:
-            order_obj.write(cr, uid, [active_id], {'invoice_wanted': invoice_wanted, 'partner_id': data['partner_id']})
+            order_obj.write(cr, uid, [active_id], {'invoice_wanted': invoice_wanted, 'partner_id': data['partner_id']}, context=context)
             order_obj.add_payment(cr, uid, active_id, data, context=context)
 
         if order_obj.test_paid(cr, uid, [active_id]):
@@ -159,33 +160,33 @@ class pos_make_payment(osv.osv_memory):
                 order_obj.action_invoice(cr, uid, [active_id], context)
                 order_obj.create_picking(cr, uid, [active_id], context)
                 if context.get('return'):
-                    order_obj.write(cr, uid, [active_id],{'state':'done'})
+                    order_obj.write(cr, uid, [active_id], {'state':'done'}, context=context)
                 else:
-                    order_obj.write(cr, uid, [active_id],{'state':'paid'})
+                    order_obj.write(cr, uid, [active_id],{'state':'paid'}, context=context)
                 return self.create_invoice(cr, uid, ids, context)
             else:
                 context.update({'flag': True})
                 order_obj.action_paid(cr, uid, [active_id], context)
                 if context.get('return'):
-                    order_obj.write(cr, uid, [active_id],{'state':'done'})
+                    order_obj.write(cr, uid, [active_id], {'state':'done'}, context=context)
                 else:
-                    order_obj.write(cr, uid, [active_id],{'state':'paid'})
+                    order_obj.write(cr, uid, [active_id], {'state':'paid'}, context=context)
                 return self.print_report(cr, uid, ids, context)
 
         if order.amount_paid > 0.0:
             context.update({'flag': True})
             # Todo need to check
             order_obj.action_paid(cr, uid, [active_id], context)
-            order_obj.write(cr, uid, [active_id],{'state': 'advance'})
+            order_obj.write(cr, uid, [active_id], {'state': 'advance'}, context=context)
             return self.print_report(cr, uid, ids, context)
         return {}
 
 
-    def create_invoice(self, cr, uid, ids, context):
+    def create_invoice(self, cr, uid, ids, context=None):
         """
           Create  a invoice
         """
-        active_ids = [context and context.get('active_id',False)]
+        active_ids = [context and context.get('active_id', False)]
         datas = {'ids': active_ids}
         datas['form'] = {}
         return {
@@ -204,12 +205,11 @@ class pos_make_payment(osv.osv_memory):
          @return : retrun report
         """
         if not context:
-            context={}
-        active_id=context.get('active_id',[])
+            context = {}
+        active_id = context.get('active_id', [])
         datas = {'ids' : [active_id]}
         res =  {}
         datas['form'] = res
-
         return {
             'type': 'ir.actions.report.xml',
             'report_name': 'pos.receipt',
@@ -217,14 +217,14 @@ class pos_make_payment(osv.osv_memory):
        }
 
     _columns = {
-        'journal':fields.selection(pos_box_entries.get_journal, "Cash Register",required=True),
+        'journal': fields.selection(pos_box_entries.get_journal, "Cash Register", required=True),
         'product_id': fields.many2one('product.product', "Advance"),
-        'amount':fields.float('Amount', digits=(16,2) ,required= True),
+        'amount': fields.float('Amount', digits=(16,2) ,required= True),
         'payment_name': fields.char('Payment name', size=32, required=True),
         'payment_date': fields.date('Payment date', required=True),
         'is_acc': fields.boolean('Advance'),
         'invoice_wanted': fields.boolean('Invoice'),
-        'num_sale':fields.char('Num.File', size=32),
+        'num_sale': fields.char('Num.File', size=32),
         'pricelist_id': fields.many2one('product.pricelist', 'Pricelist'),
         'partner_id': fields.many2one('res.partner', 'Customer'),
     }
diff --git a/addons/point_of_sale/wizard/pos_payment_report.py b/addons/point_of_sale/wizard/pos_payment_report.py
index 85863315bdb..893cb3c0fda 100644
--- a/addons/point_of_sale/wizard/pos_payment_report.py
+++ b/addons/point_of_sale/wizard/pos_payment_report.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 ##############################################################################
-#    
+#
 #    OpenERP, Open Source Management Solution
 #    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
 #
@@ -15,20 +15,18 @@
 #    GNU Affero General Public License for more details.
 #
 #    You should have received a copy of the GNU Affero General Public License
-#    along with this program.  If not, see <http://www.gnu.org/licenses/>.     
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
 
-
 from osv import osv
 from tools.translate import _
 
-
 class pos_payment_report(osv.osv_memory):
     _name = 'pos.payment.report'
     _description = 'Payment Report'
 
-    def print_report(self, cr, uid, ids, context={}):
+    def print_report(self, cr, uid, ids, context=None):
         """
          To get the date and print the report
          @param self: The object pointer.
@@ -37,7 +35,8 @@ class pos_payment_report(osv.osv_memory):
          @param context: A standard dictionary
          @return : retrun report
         """
-
+        if context is None:
+            context = {}
         datas = {'ids': context.get('active_ids', [])}
         return {
             'type': 'ir.actions.report.xml',
diff --git a/addons/point_of_sale/wizard/pos_payment_report_date.py b/addons/point_of_sale/wizard/pos_payment_report_date.py
index 0830e092081..f2e3fb40419 100644
--- a/addons/point_of_sale/wizard/pos_payment_report_date.py
+++ b/addons/point_of_sale/wizard/pos_payment_report_date.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 ##############################################################################
-#    
+#
 #    OpenERP, Open Source Management Solution
 #    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
 #
@@ -15,20 +15,21 @@
 #    GNU Affero General Public License for more details.
 #
 #    You should have received a copy of the GNU Affero General Public License
-#    along with this program.  If not, see <http://www.gnu.org/licenses/>.     
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
 
+import time
+
 from osv import osv
 from osv import fields
-import time
 
 
 class pos_payment_report_date(osv.osv_memory):
     _name = 'pos.payment.report.date'
     _description = 'POS Payment Report according to date'
-    def print_report(self, cr, uid, ids, context=None):
 
+    def print_report(self, cr, uid, ids, context=None):
         """
              To get the date and print the report
              @param self: The object pointer.
@@ -37,8 +38,10 @@ class pos_payment_report_date(osv.osv_memory):
              @param context: A standard dictionary
              @return : retrun report
         """
+        if context is None:
+            context = {}
         datas = {'ids': context.get('active_ids', [])}
-        res = self.read(cr, uid, ids, ['date_start', 'date_end', 'user_id'])
+        res = self.read(cr, uid, ids, ['date_start', 'date_end', 'user_id'], context=context)
         res = res and res[0] or {}
         datas['form'] = res
 
@@ -54,8 +57,8 @@ class pos_payment_report_date(osv.osv_memory):
         'user_id': fields.many2many('res.users', 'res_user_sale', 'user_id', 'sale_id', 'Salesman')
     }
     _defaults = {
-        'date_start': lambda *a: time.strftime('%Y-%m-%d'),
-        'date_end': lambda *a: time.strftime('%Y-%m-%d'),
+        'date_start': time.strftime('%Y-%m-%d'),
+        'date_end': time.strftime('%Y-%m-%d'),
     }
 
 pos_payment_report_date()
diff --git a/addons/point_of_sale/wizard/pos_payment_report_user.py b/addons/point_of_sale/wizard/pos_payment_report_user.py
index 1ac927a4fcd..02db921618b 100644
--- a/addons/point_of_sale/wizard/pos_payment_report_user.py
+++ b/addons/point_of_sale/wizard/pos_payment_report_user.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 ##############################################################################
-#    
+#
 #    OpenERP, Open Source Management Solution
 #    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
 #
@@ -15,19 +15,16 @@
 #    GNU Affero General Public License for more details.
 #
 #    You should have received a copy of the GNU Affero General Public License
-#    along with this program.  If not, see <http://www.gnu.org/licenses/>.     
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
 
-from osv import osv
-from osv import fields
-
+from osv import osv, fields
 
 class pos_payment_report_user(osv.osv_memory):
     _name = 'pos.payment.report.user'
     _description = 'Sales lines by Users'
     def print_report(self, cr, uid, ids, context=None):
-
         """
              To get the date and print the report
              @param self: The object pointer.
@@ -36,11 +33,12 @@ class pos_payment_report_user(osv.osv_memory):
              @param context: A standard dictionary
              @return : retrun report
         """
+        if context is None:
+            context = {}
         datas = {'ids': context.get('active_ids', [])}
-        res = self.read(cr, uid, ids, ['user_id'])
+        res = self.read(cr, uid, ids, ['user_id'], context=context)
         res = res and res[0] or {}
         datas['form'] = res
-
         return {
             'type': 'ir.actions.report.xml',
             'report_name': 'pos.payment.report.user',