It is only when printed in CSV that it represents with the |. It is all
fine:
In [1]: db.define_table(
...: 'school',
...: Field('Name'),
...: format='%(Name)s',
...: migrate=True
...: )
Out[1]: <Table school (id,Name)>
In [2]:
In [2]: db.define_table(
...: 'teacher',
...: Field('Name'),
...: Field('schools', 'list:reference school', label='School
Villages'),
...: format='%(Name)s',
...: migrate=True
...: )
Out[2]: <Table teacher (id,Name,schools)>
In [3]:
In [3]: db.school.insert(Name="a")
Out[3]: 1L
In [4]: db.school.insert(Name="b")
Out[4]: 2L
In [5]: db.school.insert(Name="c")
Out[5]: 3L
In [6]: db.teacher.insert(Name="xxx", schools=[1,2,3])
Out[6]: 1L
In [7]: teachers = db(db.teacher.id>0).select()
In [8]: print teachers
teacher.id,teacher.Name,teacher.schools
1,xxx,|1|2|3|
In [9]: print teachers[0].schools
[1L, 2L, 3L]
On Wednesday, 12 August 2015 07:55:50 UTC-5, Michael Beller wrote:
>
> db.define_table(
> 'school',
> Field('Name'),
> format='%(Name)s',
> migrate=True
> )
>
> db.define_table(
> 'teacher',
> Field('Name'),
> Field('schools', 'list:reference school', label='School Villages'),
> format='%(Name)s',
> migrate=True
> )
>
> teachers = db(db.teacher.id>0).select().render(0)
>
> Without the render(), it a Row with the piped school id's, e.g.,
> 51,sally,|53|52|
>
> On Wednesday, August 12, 2015 at 1:50:20 AM UTC-4, Massimo Di Pierro wrote:
>>
>> Can you show us minimalist code to reproduce the problem?
>>
>> On Tuesday, 11 August 2015 23:03:24 UTC-5, Michael Beller wrote:
>>>
>>> I was using web2py 2.10.4 and encountered the error using list:reference:
>>> <type 'exceptions.TypeError'> isinstance() arg 2 must be a class, type,
>>> or tuple of classes and types
>>>
>>> I then upgraded to 2.12.2 and applied this fix
>>> <https://github.com/web2py/pydal/commit/2172b776b9c41884717902e68900b41c105e0364#diff-114ce07f361177e0669ec9a374ef7d6a>
>>>
>>> that others referenced in the forums having the same problem.
>>>
>>> Now I'm getting this error:
>>> <type 'exceptions.AttributeError'> 'long' object has no attribute 'id'
>>>
>>> The error occurs in the render() function when applied to a query.
>>>
>>> File
>>> "/Users/MichaelBeller/Dev/w2p-enriched/gluon/packages/dal/pydal/helpers/methods.py",
>>> line 279, in __call__
>>> _fieldformat(self.ref, x.id) for x in value) or ''
>>> File
>>> "/Users/MichaelBeller/Dev/w2p-enriched/gluon/packages/dal/pydal/helpers/methods.py",
>>> line 279, in <genexpr>
>>> _fieldformat(self.ref, x.id) for x in value) or ''
>>> AttributeError: 'long' object has no attribute 'id'
>>>
>>> Does anybody else have this problem?
>>>
>>> Thanks.
>>>
>>>
--
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