TypeError: _get_category() takes exactly 6 arguments (4 given)

Question

到底哪里出了问题？

我正在尝试运行代码，但出现以下错误

我附上了回溯。

    Server Traceback (most recent call last):
  File "C:\Program Files (x86)\OpenERP 7.0-20141009-011214\server\openerp\addons\web\session.py", line 89, in send
  File "C:\Program Files (x86)\OpenERP 7.0-20141009-011214\server\.\openerp\netsvc.py", line 296, in dispatch_rpc
  File "C:\Program Files (x86)\OpenERP 7.0-20141009-011214\server\.\openerp\service\web_services.py", line 626, in dispatch
  File "C:\Program Files (x86)\OpenERP 7.0-20141009-011214\server\.\openerp\osv\osv.py", line 190, in execute_kw
  File "C:\Program Files (x86)\OpenERP 7.0-20141009-011214\server\.\openerp\osv\osv.py", line 132, in wrapper
  File "C:\Program Files (x86)\OpenERP 7.0-20141009-011214\server\.\openerp\osv\osv.py", line 199, in execute
  File "C:\Program Files (x86)\OpenERP 7.0-20141009-011214\server\.\openerp\osv\osv.py", line 187, in execute_cr
  File "C:\Program Files (x86)\OpenERP 7.0-20141009-011214\server\.\openerp\osv\orm.py", line 1610, in default_get
TypeError: _get_category() takes at least 6 arguments (4 given)

def _get_category(self, cr, uid, ids, field_names, arg, context=None):
        category_obj = self.pool.get('module.category').browse(cr, uid, category_id)
        return {'value': {'category_id': category_obj.name}}

_name ='module.level'
    _description ="Module Level"
    _columns = {
    'name':fields.char('Level', size=20),
    'category_id':fields.function(_get_category,type='many2one',obj="module.category",method=True,string='Session'),

Answer 1

您向函数传递了错误的参数。

尝试使用此代码：

def _get_category(self, cr, uid, ids, field_names, arg, context=None): 
    #function logic
    return

Answer 2

检查缩进，你的 _name 和 _description 缩进看起来不对。

你可以这样写代码

def _get_category(self, cr, uid, ids, field_names, arg, context=None):
    # Your Logic
    # I need to know where is category_id ??

_name = 'module.level'
_description = "Module Level"
_columns = {
    'name': fields.char('Level', size=20),
    'category_id': fields.function(_get_category, type='many2one', relation="module.category", method=True, string='Session'),
}

TypeError: _get_category() takes exactly 6 arguments (4 given)

TypeError: _get_category() takes exactly 6 arguments (4 given)

python

openerp