I have found my mistake, in the query
db(ti.DocNum == doc)
I was using the wrong variable (doc) which is a row,
it should be docnum.
Thanks villas for your help and words of encouragement.
On Friday, September 11, 2020 at 11:26:51 AM UTC-4 DenesL wrote:
> Hi villas
>
> thanks for your suggestion.
> I ran a test in the shell and it works:
>
> web2py Web Framework
> Created by Massimo Di Pierro, Copyright 2007-2020
> Version 2.20.4-stable+timestamp.2020.05.03.05.18.50
> Database drivers available: sqlite3, pyodbc, imaplib, pymysql
> WARNING:web2py:import IPython error; use default python shell
> Python 3.7.8 (tags/v3.7.8:4b47a5b6ba, Jun 28 2020, 08:53:46) [MSC v.1916
> 64 bit (AMD64)] on win32
> Type "help", "copyright", "credits" or "license" for more information.
> (InteractiveConsole)
> >>> db.tables
> ['auth_user', 'auth_group', 'auth_membership', 'auth_permission',
> 'auth_event', 'auth_cas', 'docscan', 'itmscan']
> >>> ti=db.itmscan
> >>> ss=db(ti.DocNum==350).select()
> >>> print(ss)
> itmscan.id
> ,itmscan.DocNum,itmscan.ItemCode,itmscan.Dscription,itmscan.box,itmsca
>
> n.scanqty,itmscan.scanid,itmscan.empid,itmscan.status,itmscan.spcins,itmscan.tstamp
> 1,350,P10002,"PC - 12x core, 64GB, 5 x 150GB
> SSD",1,1.000000,SCANNER1,emp003,,,2020-09-09 09:14:12
> 2,350,P10002,"PC - 12x core, 64GB, 5 x 150GB
> SSD",1,1.000000,SCANNER1,emp003,,,2020-09-09 09:15:25
> >>> scnqtysum = ti.scanqty.sum()
> >>> ss=db(ti.DocNum==350).select(scnqtysum)
> >>> print(ss)
> "SUM(""itmscan"".""scanqty"")"
> 2.000000
>
> so something is amiss somewhere...
>
> BTW, having DocNum=='350' makes no difference.
>
> Denes
>
> On Friday, September 11, 2020 at 6:34:50 AM UTC-4 villas wrote:
>
>> Are you sure your *doc *search value is an integer?
>>
>> Maybe a little more experimentation. Simplify and then incrementally add
>> complexity. Start here...
>> ss = db(ti.DocNum == 999999).select(scnqtysum)
>>
>> Also, check the SQL:
>> ss = db(ti.DocNum == doc)._select(scnqtysum) ## note the underline chr _
>>
>> On Friday, 11 September 2020 at 03:30:54 UTC+1 DenesL wrote:
>>
>>> Hi villas
>>>
>>> thanks for your reply.
>>> There should be no NULLs in there since I deleted all tables and started
>>> from a blank slate.
>>> Still no idea why this happens. Why is trying to use __int__ if it is a
>>> decimal?.
>>>
>>> Denes
>>>
>>> On Thursday, September 10, 2020 at 12:04:44 PM UTC-4 villas wrote:
>>>
>>>> Hi Denes
>>>> Just a thought, and I'm not sure if this is the answer, but the
>>>> following indicates that there is a null value in the DB field:
>>>> TypeError: __int__ returned non-int (type NoneType)
>>>>
>>>> Maybe you initially created the field without a default and then added
>>>> the default=0.0 later. This may have enabled you to create records with
>>>> null values?
>>>>
>>>> I therefore suggest you search for any null values and replace them
>>>> with 0.0. Perhaps you could run this query....
>>>> update itmscan set scanqty = 0.0 where scanqty is null
>>>>
>>>>
>>>> On Wednesday, 9 September 2020 at 15:31:59 UTC+1 DenesL wrote:
>>>>
>>>>> Hi group
>>>>>
>>>>> running Version 2.20.4-stable+timestamp.2020.05.03.05.18.50
>>>>> with SQL Server 2012 on Win 8.1
>>>>>
>>>>> I am getting the following error when I try to sum a decimal field in
>>>>> a table:
>>>>>
>>>>> Traceback (most recent call last):
>>>>> File "C:\w2p\web2py22004py3\gluon\restricted.py", line 219, in
>>>>> restricted
>>>>> exec(ccode, environment)
>>>>> File
>>>>> "C:/w2p/web2py22004py3/applications/scanpak/controllers/default.py"
>>>>> <http://10.0.0.27:8000/admin/default/edit/scanpak/controllers/default.py>,
>>>>>
>>>>> line 1948, in <module>
>>>>> File "C:\w2p\web2py22004py3\gluon\globals.py", line 430, in <lambda>
>>>>> self._caller = lambda f: f()
>>>>> File
>>>>> "C:/w2p/web2py22004py3/applications/scanpak/controllers/default.py"
>>>>> <http://10.0.0.27:8000/admin/default/edit/scanpak/controllers/default.py>,
>>>>>
>>>>> line 1941, in scanvsdoc
>>>>> ss = db(ti.DocNum == doc).select(ti.ItemCode, scnqtysum, groupby = ti.
>>>>> ItemCode)
>>>>> File "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\objects.py", line
>>>>> 2634, in select
>>>>> return adapter.select(self.query, fields, attributes)
>>>>> File "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\adapters\base.py",
>>>>> line 874, in select
>>>>> colnames, sql = self._select_wcols(query, fields, **attributes)
>>>>> File "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\adapters\base.py",
>>>>> line 768, in _select_wcols
>>>>> query = self.expand(query, query_env=query_env)
>>>>> File "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\adapters\base.py",
>>>>> line 487, in _expand
>>>>> rv = op(first, second, **optional_args)
>>>>> File "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\dialects\base.py",
>>>>> line 406, in eq
>>>>> self.expand(second, first.type, query_env=query_env),
>>>>> File
>>>>> "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\dialects\__init__.py",
>>>>> line 97, in expand
>>>>> return self.adapter.expand(*args, **kwargs)
>>>>> File "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\adapters\base.py",
>>>>> line 497, in _expand
>>>>> rv = self.represent(expression, field_type)
>>>>> File "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\adapters\base.py",
>>>>> line 430, in represent
>>>>> return super(SQLAdapter, self).represent(obj, field_type)
>>>>> File "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\adapters\base.py",
>>>>> line 384, in represent
>>>>> return self.representer.represent(obj, field_type)
>>>>> File
>>>>> "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\representers\__init__.py",
>>>>>
>>>>> line 246, in represent
>>>>> rv = self.get_representer_for_type(field_type)(rv, field_type)
>>>>> File
>>>>> "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\representers\__init__.py",
>>>>>
>>>>> line 138, in __call__
>>>>> return self.adapt(self.call(value, field_type))
>>>>> File
>>>>> "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\representers\__init__.py",
>>>>>
>>>>> line 135, in _call
>>>>> return self.inner_call(value)
>>>>> File
>>>>> "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\representers\__init__.py",
>>>>>
>>>>> line 123, in _inner_call
>>>>> return self.obj.f(self.representer, value, **kwargs)
>>>>> File
>>>>> "C:\w2p\web2py22004py3\gluon\packages\dal\pydal\representers\base.py",
>>>>> line 29, in _integer
>>>>> return str(long(value))
>>>>> TypeError: __int__ returned non-int (type NoneType)
>>>>>
>>>>> the code looks like this:
>>>>> ti = db.itmscan
>>>>> scnqtysum = ti.scanqty.sum()
>>>>> ss = db(ti.DocNum == doc).select(ti.ItemCode, scnqtysum, groupby =
>>>>> ti.ItemCode)
>>>>>
>>>>> and the table definition:
>>>>> db.define_table('itmscan',
>>>>> Field('DocNum', 'integer'),
>>>>> Field('ItemCode', 'string', 20),
>>>>> Field('Dscription', 'string', 100),
>>>>> Field('box', 'integer', default=1),
>>>>> Field('scanqty', 'decimal(19,6)', default=0.0),
>>>>> Field('scanid', 'string'),
>>>>> Field('empid', 'string'),
>>>>> Field('status', 'string'),
>>>>> Field('spcins', 'string', default=''),
>>>>> Field('tstamp', 'datetime'),
>>>>> )
>>>>> I tried adding a represent to the field but it made no difference.
>>>>>
>>>>> In the code I have a sum on another decimal field from a different
>>>>> table just a few lines before the failing one that works just fine. That
>>>>> field is also decimal(19,6).
>>>>>
>>>>> Thanks for any help, if I have made a mistake I can't see it.
>>>>>
>>>>> Denes
>>>>>
>>>>
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