I commented the use of _adapter.parser, and the error no longer occurs, but
the data of db.executesql('CALL sp_recursive_start(1);') bring nothing
every other refresh.


On Sat, Feb 23, 2013 at 1:36 PM, __pyslan__ - Ayslan Jenken <
ayslan.pyt...@gmail.com> wrote:

> Ok... I removed every try/except of my code to see the error logged by
> web2py.
>
> https://gist.github.com/pysI'm begginer in 
> web2py...lan/5007364<https://gist.github.com/pyslan/5007364>
>
>
> The error occur every other refresh...
>
> <type 'exceptions.TypeError'> 'NoneType' object is not iterable
>
> ... in this line:
>
> if db(db.auth_user).isempty():
>
> or
>
> if len(db(db.auth_user).select(limitby=(0,1))) <= 0:
>
>
> Because is the first code that use _adapter, maybe... If I comment this
> code the same error occur in other line:
>
> rows = db._adapter.parse(raw_rows, fields=fields,
>  colnames=['generation', 'id', 'first_name'])
>
>
> Traceback (most recent call last
> ):
>   File "/media/sda3/pyslan/PROJECTS/web2py/gluon/restricted.py", line 212, in 
> restricted
>
>     exec ccode in environment
>   File 
> "/media/sda3/pyslan/PROJECTS/web2py/applications/mchip/controllers/default.py"
>  <http://127.0.0.1:8000/admin/default/edit/mchip/controllers/default.py>, 
> line 109, in <module>
>
>   File "/media/sda3/pyslan/PROJECTS/web2py/gluon/globals.py", line 193, in 
> <lambda>
>
>     self._caller = lambda f: f()
>
>   File 
> "/media/sda3/pyslan/PROJECTS/web2py/applications/mchip/controllers/default.py"
>  <http://127.0.0.1:8000/admin/default/edit/mchip/controllers/default.py>, 
> line 98, in users_test
>
>     rows = db._adapter.parse(raw_rows, fields=fields, colnames=['generation', 
> 'id', 'first_name'])
>
>   File "/media/sda3/pyslan/PROJECTS/web2py/gluon/dal.py", line 1944, in parse
>
>     for (i,row) in enumerate(rows):
> TypeError: 'NoneType' object is not iterable
>
>
> Sorry... I can't understand what happening yet... I don't know what I
> should to do... I'm begginer with web2py...
>
>
>
> On Sat, Feb 23, 2013 at 12:47 PM, Massimo Di Pierro <
> massimo.dipie...@gmail.com> wrote:
>
>> Moreover because the true cause of the problem is in a try/except the
>> actual error is not logged by web2py.
>>
>>
>> On Saturday, 23 February 2013 09:46:22 UTC-6, Massimo Di Pierro wrote:
>>>
>>> Have you removed the db statements inside try....except...? That's the
>>> cause of the problem. if a db command fails, the db may close connection
>>> and your driver raises an exception. Your code catches
>>> the exception and pretends to continue execution but the database is
>>> telling you the connection was closed. You cannot pretent nothing happened.
>>>
>>> Massimo
>>>
>>> On Saturday, 23 February 2013 09:35:55 UTC-6, __pyslan__ wrote:
>>>>
>>>> Hello everybody,
>>>>
>>>> I have not found a solution yet ...
>>>> Does anyone have any idea how I could do?
>>>>
>>>>
>>>>
>>>> Thanks...
>>>>
>>>>
>>>>
>>>> On Fri, Feb 22, 2013 at 9:33 AM, __pyslan__ - Ayslan Jenken <
>>>> ayslan...@gmail.com> wrote:
>>>>
>>>>> Well...
>>>>>
>>>>> Sorry, but the information about the code comment is wrong...
>>>>>
>>>>> I uncomment the code block "if db(db.auth_user).isempty():" and the
>>>>> error not thrown.
>>>>>
>>>>> With or without the code block above, in the terminal server is shown the
>>>>> error:
>>>>>
>>>>> DEBUG: connect attempt 0, connection error:
>>>>>
>>>>> Traceback (most recent call last):
>>>>>   File "/home/ctx/PROJECTS/WEB/**web2py/gluon/dal.py", line 6853, in
>>>>> __init__
>>>>>     self._adapter = ADAPTERS[self._dbname](****kwargs)
>>>>>   File "/home/ctx/PROJECTS/WEB/**web2py/gluon/dal.py", line 2402, in
>>>>> __init__
>>>>>     if do_connect: self.reconnect()
>>>>>   File "/home/ctx/PROJECTS/WEB/**web2py/gluon/dal.py", line 588, in
>>>>> reconnect
>>>>>     self.cursor = cursor and self.connection.cursor()
>>>>> AttributeError: 'NoneType' object has no attribute 'cursor'
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Fri, Feb 22, 2013 at 9:12 AM, __pyslan__ - Ayslan Jenken <
>>>>> ayslan...@gmail.com> wrote:
>>>>>
>>>>>> Hello, Massimo.
>>>>>>
>>>>>> With this change is launched this error:
>>>>>>
>>>>>> Traceback (most recent call last):
>>>>>>    File "/ home/ctx/PROJECTS/WEB/web2py/**gluon/main.py", line 632,
>>>>>> in wsgibase
>>>>>>      BaseAdapter.close_all_**instances ('rollback')
>>>>>>    File "/ home/ctx/PROJECTS/WEB/web2py/**gluon/dal.py", line 543, in
>>>>>> close_all_instances
>>>>>>      db._adapter.close (action)
>>>>>>    File "/ home/ctx/PROJECTS/WEB/web2py/**gluon/dal.py", line 523, in
>>>>>> close
>>>>>>      getattr (self, action) ()
>>>>>>    File "/ home/ctx/PROJECTS/WEB/web2py/**gluon/dal.py", line 1670,
>>>>>> in rollback
>>>>>>      if self.connection: return self.connection.rollback ()
>>>>>> ProgrammingError: (2014, "Commands out of sync, you can not run this
>>>>>> command now")
>>>>>>
>>>>>>
>>>>>> When this error occurs, I have to wait a while to access any other
>>>>>> page, even the ticket, because it generates new tickets.
>>>>>> This error is also thrown when I try to quickly update any other page
>>>>>> repeatedly. This error no longer occurs only when I comment the code:
>>>>>> if db (db.auth_user). isempty ()
>>>>>>
>>>>>> But still happening with the execution of the stored procedure.
>>>>>>
>>>>>> Thanks...
>>>>>>
>>>>>>
>>>>>> On Fri, Feb 22, 2013 at 12:22 AM, Massimo Di Pierro <
>>>>>> massimo....@gmail.com> wrote:
>>>>>>
>>>>>>> Does it work if you replace
>>>>>>>
>>>>>>> db(db.auth_user).isempty():
>>>>>>>
>>>>>>> with
>>>>>>>
>>>>>>> len(db(db.auth_user).select(**limitby=(0,1)))
>>>>>>> *
>>>>>>> *
>>>>>>> *This is not a solution but can help me understand.
>>>>>>> *
>>>>>>>
>>>>>>> On Thursday, 21 February 2013 14:07:25 UTC-6, __pyslan__ wrote:
>>>>>>>
>>>>>>>> Sorry...
>>>>>>>>
>>>>>>>> The error occur on line 3 of this file:
>>>>>>>>
>>>>>>>> https://gist.github.com/**pyslan**/5007722<https://gist.github.com/pyslan/5007722>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Thu, Feb 21, 2013 at 4:45 PM, __pyslan__ - Ayslan Jenken <
>>>>>>>> ayslan...@gmail.com> wrote:
>>>>>>>>
>>>>>>>>> Hello, Erevybody!
>>>>>>>>>
>>>>>>>>> I am using MySQL on a project and created two procedures to
>>>>>>>>> perform a recursion, because users have users parents.
>>>>>>>>>
>>>>>>>>> The extra fields in the users table:
>>>>>>>>> https://gist.github.com/**pyslan**/5007384<https://gist.github.com/pyslan/5007384>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Performing some research and testing, I came to the code as
>>>>>>>>> follows:
>>>>>>>>> https://gist.github.com/**pyslan**/5007364<https://gist.github.com/pyslan/5007364>
>>>>>>>>>
>>>>>>>>> And the stored procedures [1]:
>>>>>>>>>
>>>>>>>>> https://gist.github.com/**pyslan**/5007439<https://gist.github.com/pyslan/5007439>
>>>>>>>>>
>>>>>>>>> https://gist.github.com/**pyslan**/5007414<https://gist.github.com/pyslan/5007414>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Running the first time the page is created normally and shows the
>>>>>>>>> page with the data correctly. If I refresh the page, generates the
>>>>>>>>> following error:
>>>>>>>>> <type'exceptions.TypeError'> 'NoneType' object is not iterable
>>>>>>>>> If I upgrade again, again shows the correct page, and so on.
>>>>>>>>>
>>>>>>>>> I tried with migrate = False, and the behavior continues.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Does anyone have any idea what is causing this error, or a correct
>>>>>>>>> way of doing this using web2py and stored procedures with MySQL?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks, guys!
>>>>>>>>> [1] - Procedures adapted from that site: http://goo.gl/l6Nc2
>>>>>>>>>
>>>>>>>>
>>>>>>>>  --
>>>>>>>
>>>>>>> ---
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>>>>>>> Groups "web2py-users" group.
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>>>>>>> For more options, visit 
>>>>>>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out>
>>>>>>> .
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>  --
>>
>> ---
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>>
>>
>
>

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