Python 如何在openERP 7中添加函数？

我试图在openERP版本7中创建一个新模块。在我的课堂上，我有以下代码：

_columns = {
'hour_from' : fields.float('Work from', required=True),
    'hour_to' : fields.float("Work to", required=True),
     'totalhour': fields.function(_total, method=True, string='Total Attendance', multi="_total"),
}

我没有找到在我的类中添加函数的任何解决方案。我需要它的函数返回从到的

hour\u和
hour\u之和。有人能帮忙吗

在声明我的_列之前，我尝试以下代码：

def _total(self, cr, uid, ids, name, args, context=None):

  res = {}

    res['totalhour'] = hour_from + hour_to

return res

重新启动服务器时，我收到以下错误：

No handler found.

（从其他帖子更新）

这是我的代码：

def _total(self, cr, uid, ids, name, args, context=None):
res = {}
for record in self.browse(cr, uid, ids, context=context):
    res['totalhour'] = record.hour_from + record.hour_to
return res

class hr_analytic_timesheet(osv.osv):
_name = "hr.analytic.timesheet"
_inherit = "hr.analytic.timesheet"


_columns = {
'hour_from' : fields.float('Work from', required=True, help="Start and End time of working.", select=True),
    'hour_to' : fields.float("Work to", required=True),

     'totalhour' : fields.function(_total, type='float', method=True, string='Total Hour'),
}

hr_analytic_timesheet()

def _total(self, cr, uid, ids, name, args, context=None):
res = {}
for record in self.browse(cr, uid, ids, context=context):
    res['totalhour'] = record.hour_from + record.hour_to
return res

class hr_analytic_timesheet(osv.osv):
_name = "hr.analytic.timesheet"
_inherit = "hr.analytic.timesheet"


_columns = {
'hour_from' : fields.float('Work from', required=True, help="Start and End time of working.", select=True),
    'hour_to' : fields.float("Work to", required=True),

     'totalhour' : fields.function(_total, type='float', method=True, string='Total Hour'),
}

hr_analytic_timesheet()

我的xml：

 <record id="view_ov_perf_timesheet_line_tree" model="ir.ui.view">
        <field name="name">hr.analytic.timesheet.tree</field>
        <field name="model">hr.analytic.timesheet</field>
        <field name="inherit_id" ref="hr_timesheet.hr_timesheet_line_tree"/>
        <field name="arch" type="xml">
                  <field name="unit_amount" position="replace">

                    <field name="hour_from" widget="float_time" string="Heure début"/>
                    <field name="hour_to" widget="float_time" string="Heure fin" />
                     <field name="totalhour"  widget="float_time"/>

                   </field>

        </field>
    </record>

 <record id="view_ov_perf_timesheet_line_tree" model="ir.ui.view">
        <field name="name">hr.analytic.timesheet.tree</field>
        <field name="model">hr.analytic.timesheet</field>
        <field name="inherit_id" ref="hr_timesheet.hr_timesheet_line_tree"/>
        <field name="arch" type="xml">
                  <field name="unit_amount" position="replace">

                    <field name="hour_from" widget="float_time" string="Heure début"/>
                    <field name="hour_to" widget="float_time" string="Heure fin" />
                     <field name="totalhour"  widget="float_time"/>

                   </field>

        </field>
    </record>

你能帮我吗


这是我的代码：

def _total(self, cr, uid, ids, name, args, context=None):
res = {}
for record in self.browse(cr, uid, ids, context=context):
    res['totalhour'] = record.hour_from + record.hour_to
return res

class hr_analytic_timesheet(osv.osv):
_name = "hr.analytic.timesheet"
_inherit = "hr.analytic.timesheet"


_columns = {
'hour_from' : fields.float('Work from', required=True, help="Start and End time of working.", select=True),
    'hour_to' : fields.float("Work to", required=True),

     'totalhour' : fields.function(_total, type='float', method=True, string='Total Hour'),
}

hr_analytic_timesheet()

def _total(self, cr, uid, ids, name, args, context=None):
res = {}
for record in self.browse(cr, uid, ids, context=context):
    res['totalhour'] = record.hour_from + record.hour_to
return res

class hr_analytic_timesheet(osv.osv):
_name = "hr.analytic.timesheet"
_inherit = "hr.analytic.timesheet"


_columns = {
'hour_from' : fields.float('Work from', required=True, help="Start and End time of working.", select=True),
    'hour_to' : fields.float("Work to", required=True),

     'totalhour' : fields.function(_total, type='float', method=True, string='Total Hour'),
}

hr_analytic_timesheet()

我的xml：

 <record id="view_ov_perf_timesheet_line_tree" model="ir.ui.view">
        <field name="name">hr.analytic.timesheet.tree</field>
        <field name="model">hr.analytic.timesheet</field>
        <field name="inherit_id" ref="hr_timesheet.hr_timesheet_line_tree"/>
        <field name="arch" type="xml">
                  <field name="unit_amount" position="replace">

                    <field name="hour_from" widget="float_time" string="Heure début"/>
                    <field name="hour_to" widget="float_time" string="Heure fin" />
                     <field name="totalhour"  widget="float_time"/>

                   </field>

        </field>
    </record>

 <record id="view_ov_perf_timesheet_line_tree" model="ir.ui.view">
        <field name="name">hr.analytic.timesheet.tree</field>
        <field name="model">hr.analytic.timesheet</field>
        <field name="inherit_id" ref="hr_timesheet.hr_timesheet_line_tree"/>
        <field name="arch" type="xml">
                  <field name="unit_amount" position="replace">

                    <field name="hour_from" widget="float_time" string="Heure début"/>
                    <field name="hour_to" widget="float_time" string="Heure fin" />
                     <field name="totalhour"  widget="float_time"/>

                   </field>

        </field>
    </record>

您可以这样定义您的函数：

def _total(self, cr, uid, ids, name, args, context=None):
    res = {}
    for record in self.browse(cr, uid, ids, context=context):
        res[record.id] = record.hour_from + record.hour_to
    return res

def _total(self, cr, uid, ids, name, args, context=None):
    res = {}
    for record in self.browse(cr, uid, ids, context=context):
        res[record.id] = {'totalhour' : 0.0}
        res[record.id]['totalhour'] = record.hour_from + record.hour_to
    return res

这里是如何定义函数字段的链接，希望对您有所帮助

您可以这样定义您的功能并再次检查：

def _total(self, cr, uid, ids, name, args, context=None):
    res = {}
    for record in self.browse(cr, uid, ids, context=context):
        res[record.id] =  record.hour_from + record.hour_to
    return res

或者像这样：

def _total(self, cr, uid, ids, name, args, context=None):
    res = {}
    for record in self.browse(cr, uid, ids, context=context):
        res[record.id] = record.hour_from + record.hour_to
    return res

def _total(self, cr, uid, ids, name, args, context=None):
    res = {}
    for record in self.browse(cr, uid, ids, context=context):
        res[record.id] = {'totalhour' : 0.0}
        res[record.id]['totalhour'] = record.hour_from + record.hour_to
    return res

尊敬的，
请您共享完整的异常堆栈好吗？这会让你对错误有更多的了解。谢谢你的回答。这是halp mee并解决了部分问题，但当我更新我的应用程序时，我是一个新的错误，我去查看我有此错误
关键错误9
非常感谢您非常非常匹配它的工作与第一个功能thak you Againts感谢您保存我的a**