获取odoo8中列的总和

Question

我想计算account.bank.statement上“Montantcrédit”列的总和。我尝试使用_get_sum_entry_encoding，但那些不起作用。

见图：

Answer 1

尝试以下代码：

 def _get_tot(self, cr, uid, ids, name, arg, context=None):
    res = {}
    cr.execute("SELECT sum(amount) FROM account_bank_statement_line WHERE statement_id ="+str(ids)+"")
    data = cr.fetchall() 
    for re in self.browse(cr, uid, ids, context=context):
         res[re.id] = data 

    return res

Answer 2

经过大量测试并在Kbir的帮助下，这里是解决方案： .py：

from openerp.osv import fields, orm, osv
class sale_order_line(orm.Model):
_inherit = 'account.bank.statement'
_name = 'account.bank.statement'

def _get_tot(self, cr, uid, ids, name, arg, context=None):
res = {}
cr.execute("SELECT sum(amount) FROM account_bank_statement_line WHERE statement_id ="+str(ids[0])+"")
data = cr.fetchone()
for re in self.browse(cr, uid, ids, context=context):
 res[re.id] = data[0]
return res


def _get_statement_from_line(self, cr, uid, ids, context=None):
    result = {}
    for line in self.pool.get('account.bank.statement.line').browse(cr, uid, ids, context=context):
        result[line.statement_id.id] = True
    return result.keys()

_columns = {

'totm': fields.function(_get_tot, 'totm',type='float',
       store = {
            'account.bank.statement': (lambda self, cr, uid, ids, context=None: ids, ['line_ids','move_line_ids'], 10),
            'account.bank.statement.line': (_get_statement_from_line, ['amount'], 10),
       }),
      }

.xml：

<?xml version="1.0" encoding="utf-8"?>
 <openerp>
   <data>
  <record model="ir.ui.view" id="view_order_form_ftz">
        <field name="name">view.order.form.ftz</field>
        <field name="model">account.bank.statement</field>
        <field name="inherit_id" ref="account.view_bank_statement_formfz" />
        <field name="arch" type="xml">
          <xpath expr="//field[@name='balance_start']" position="after">
            <field name="totm" string="Montant total"/>
          </xpath>
        </field>
    </record>
  </data>
 </openerp>

我想你再次卡比尔。