[MERGE] new v8 api by rco

A squashed merge is required as the conversion of the apiculture branch from
bzr to git was not correctly done. The git history contains irrelevant blobs
and commits. This branch brings a lot of changes and fixes, too many to list
exhaustively.

- New orm api, objects are now used instead of ids
- Environements to encapsulates cr uid context while maintaining backward compatibility
- Field compute attribute is a new object oriented way to define function fields
- Shared browse record cache
- New onchange protocol
- Optional copy flag on fields
- Documentation update
- Dead code cleanup
- Lots of fixes

addons/account/account_bank_statement.py

@@ -69,8 +69,7 @@ def _get_period(self, cr, uid, context=None):
         return False
 
     def _compute_default_statement_name(self, cr, uid, journal_id, context=None):
-        if context is None:
-            context = {}
+        context = dict(context or {})
         obj_seq = self.pool.get('ir.sequence')
         period = self.pool.get('account.period').browse(cr, uid, self._get_period(cr, uid, context=context), context=context)
         context['fiscalyear_id'] = period.fiscalyear_id.id
@@ -114,8 +113,16 @@ def _all_lines_reconciled(self, cr, uid, ids, name, args, context=None):
     _description = "Bank Statement"
     _inherit = ['mail.thread']
     _columns = {
-        'name': fields.char('Reference', states={'draft': [('readonly', False)]}, readonly=True, help='if you give the Name other then /, its created Accounting Entries Move will be with same name as statement name. This allows the statement entries to have the same references than the statement itself'), # readonly for account_cash_statement
-        'date': fields.date('Date', required=True, states={'confirm': [('readonly', True)]}, select=True),
+        'name': fields.char(
+            'Reference', states={'draft': [('readonly', False)]},
+            readonly=True, # readonly for account_cash_statement
+            copy=False,
+            help='if you give the Name other then /, its created Accounting Entries Move '
+                 'will be with same name as statement name. '
+                 'This allows the statement entries to have the same references than the '
+                 'statement itself'),
+        'date': fields.date('Date', required=True, states={'confirm': [('readonly', True)]},
+                            select=True, copy=False),
         'journal_id': fields.many2one('account.journal', 'Journal', required=True,
             readonly=True, states={'draft':[('readonly',False)]}),
         'period_id': fields.many2one('account.period', 'Period', required=True,
@@ -132,14 +139,15 @@ def _all_lines_reconciled(self, cr, uid, ids, name, args, context=None):
             string="Computed Balance", help='Balance as calculated based on Opening Balance and transaction lines'),
         'company_id': fields.related('journal_id', 'company_id', type='many2one', relation='res.company', string='Company', store=True, readonly=True),
         'line_ids': fields.one2many('account.bank.statement.line',
-            'statement_id', 'Statement lines',
-            states={'confirm':[('readonly', True)]}),
+                                    'statement_id', 'Statement lines',
+                                    states={'confirm':[('readonly', True)]}, copy=True),
         'move_line_ids': fields.one2many('account.move.line', 'statement_id',
-            'Entry lines', states={'confirm':[('readonly',True)]}),
+                                         'Entry lines', states={'confirm':[('readonly',True)]}),
         'state': fields.selection([('draft', 'New'),
                                    ('open','Open'), # used by cash statements
                                    ('confirm', 'Closed')],
                                    'Status', required=True, readonly="1",
+                                   copy=False,
                                    help='When new statement is created the status will be \'Draft\'.\n'
                                         'And after getting confirmation from the bank it will be in \'Confirmed\' status.'),
         'currency': fields.function(_currency, string='Currency',
@@ -182,7 +190,7 @@ def onchange_date(self, cr, uid, ids, date, company_id, context=None):
         pids = period_pool.find(cr, uid, dt=date, context=ctx)
         if pids:
             res.update({'period_id': pids[0]})
-            context.update({'period_id': pids[0]})
+            context = dict(context, period_id=pids[0])
 
         return {
             'value':res,
@@ -363,24 +371,13 @@ def onchange_journal_id(self, cr, uid, statement_id, journal_id, context=None):
         return {'value': res}
 
     def unlink(self, cr, uid, ids, context=None):
-        stat = self.read(cr, uid, ids, ['state'], context=context)
-        unlink_ids = []
-        for t in stat:
-            if t['state'] in ('draft'):
-                unlink_ids.append(t['id'])
-            else:
-                raise osv.except_osv(_('Invalid Action!'), _('In order to delete a bank statement, you must first cancel it to delete related journal items.'))
-        osv.osv.unlink(self, cr, uid, unlink_ids, context=context)
-        return True
-
-    def copy(self, cr, uid, id, default=None, context=None):
-        if default is None:
-            default = {}
-        if context is None:
-            context = {}
-        default = default.copy()
-        default['move_line_ids'] = []
-        return super(account_bank_statement, self).copy(cr, uid, id, default, context=context)
+        for item in self.browse(cr, uid, ids, context=context):
+            if item.state != 'draft':
+                raise osv.except_osv(
+                    _('Invalid Action!'), 
+                    _('In order to delete a bank statement, you must first cancel it to delete related journal items.')
+                )
+        return super(account_bank_statement, self).unlink(cr, uid, ids, context=context)
 
     def button_journal_entries(self, cr, uid, ids, context=None):
         ctx = (context or {}).copy()
@@ -806,8 +803,8 @@ def _needaction_domain_get(self, cr, uid, context=None):
     _description = "Bank Statement Line"
     _inherit = ['ir.needaction_mixin']
     _columns = {
-        'name': fields.char('Description', required=True),
-        'date': fields.date('Date', required=True),
+        'name': fields.char('Description', required=True, copy=False),
+        'date': fields.date('Date', required=True, copy=False),
         'amount': fields.float('Amount', digits_compute=dp.get_precision('Account')),
         'partner_id': fields.many2one('res.partner', 'Partner'),
         'bank_account_id': fields.many2one('res.partner.bank','Bank Account'),

addons/account/account_cash_statement.py

@@ -179,7 +179,7 @@ def onchange_journal_id(self, cr, uid, ids, journal_id, context=None):
             },
             help="Total of cash transaction lines."),
         'closing_date': fields.datetime("Closed On"),
-        'details_ids' : fields.one2many('account.cashbox.line', 'bank_statement_id', string='CashBox Lines'),
+        'details_ids' : fields.one2many('account.cashbox.line', 'bank_statement_id', string='CashBox Lines', copy=True),
         'opening_details_ids' : fields.one2many('account.cashbox.line', 'bank_statement_id', string='Opening Cashbox Lines'),
         'closing_details_ids' : fields.one2many('account.cashbox.line', 'bank_statement_id', string='Closing Cashbox Lines'),
         'user_id': fields.many2one('res.users', 'Responsible', required=False),
@@ -337,7 +337,7 @@ def _default_cashbox_line_ids(self, cr, uid, context=None):
         return result
 
     _columns = {
-        'cashbox_line_ids' : fields.one2many('account.journal.cashbox.line', 'journal_id', 'CashBox'),
+        'cashbox_line_ids' : fields.one2many('account.journal.cashbox.line', 'journal_id', 'CashBox', copy=True),
     }
 
     _defaults = {