包含openerp的sql请求的Python函数

我有一个字段是函数的结果（

fields.function

）。但是我的函数包含一个SQL请求，我不知道如何创建它

以下是我尝试过的：

功能：

   def _total_get(self, cr, uid, context=None):

    cr.execute('select total from hr_payslip_line where code = "22001"')

  return cr.fetchall()

   'a':fields.function(_total_get, type = 'float',store=False,method=True,obj="HrPayslip",string="L"),

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

function(fnct, arg=None, fnct_inv=None, fnct_inv_arg=None, type='float',fnct_search=None, obj=None, store=False, multi=False,...)

def _total_get(self, cr, uid, ids, name, args, context=None):
    cr.execute('select total from hr_payslip_line where code = "22001"')
    total = cr.fetchone();
    total = total and total[0] or 0.0
    return dict.fromkeys(ids, total)

字段：

   def _total_get(self, cr, uid, context=None):

    cr.execute('select total from hr_payslip_line where code = "22001"')

  return cr.fetchall()

   'a':fields.function(_total_get, type = 'float',store=False,method=True,obj="HrPayslip",string="L"),

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

function(fnct, arg=None, fnct_inv=None, fnct_inv_arg=None, type='float',fnct_search=None, obj=None, store=False, multi=False,...)

def _total_get(self, cr, uid, ids, name, args, context=None):
    cr.execute('select total from hr_payslip_line where code = "22001"')
    total = cr.fetchone();
    total = total and total[0] or 0.0
    return dict.fromkeys(ids, total)

错误： TypeError:_total_get（）最多接受4个参数（给定7个）

请尝试以下操作

def _total_get(self, cr, uid, ids, field_names=None, arg=False, context=None):

    cr.execute('select total from hr_payslip_line where code = "22001"')

    return cr.fetchall()

---

函数默认采用7个参数。

函数字段的签名为：

   def _total_get(self, cr, uid, context=None):

    cr.execute('select total from hr_payslip_line where code = "22001"')

  return cr.fetchall()

   'a':fields.function(_total_get, type = 'float',store=False,method=True,obj="HrPayslip",string="L"),

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

function(fnct, arg=None, fnct_inv=None, fnct_inv_arg=None, type='float',fnct_search=None, obj=None, store=False, multi=False,...)

def _total_get(self, cr, uid, ids, name, args, context=None):
    cr.execute('select total from hr_payslip_line where code = "22001"')
    total = cr.fetchone();
    total = total and total[0] or 0.0
    return dict.fromkeys(ids, total)

可用参数：

   def _total_get(self, cr, uid, context=None):

    cr.execute('select total from hr_payslip_line where code = "22001"')

  return cr.fetchall()

   'a':fields.function(_total_get, type = 'float',store=False,method=True,obj="HrPayslip",string="L"),

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

function(fnct, arg=None, fnct_inv=None, fnct_inv_arg=None, type='float',fnct_search=None, obj=None, store=False, multi=False,...)

def _total_get(self, cr, uid, ids, name, args, context=None):
    cr.execute('select total from hr_payslip_line where code = "22001"')
    total = cr.fetchone();
    total = total and total[0] or 0.0
    return dict.fromkeys(ids, total)

您的功能：

   def _total_get(self, cr, uid, context=None):

    cr.execute('select total from hr_payslip_line where code = "22001"')

  return cr.fetchall()

   'a':fields.function(_total_get, type = 'float',store=False,method=True,obj="HrPayslip",string="L"),

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

function(fnct, arg=None, fnct_inv=None, fnct_inv_arg=None, type='float',fnct_search=None, obj=None, store=False, multi=False,...)

def _total_get(self, cr, uid, ids, name, args, context=None):
    cr.execute('select total from hr_payslip_line where code = "22001"')
    total = cr.fetchone();
    total = total and total[0] or 0.0
    return dict.fromkeys(ids, total)

注意：函数字段返回类型为dictionary