In the a common mistake in migrations or simply moving things around is
moving the database but not the metadata itself.
I am wondering if it is better to keep the metadata (.tables files) IN the
database itself instead of on the filesystem?
On Wednesday, December 12, 2012 9:41:22 PM UTC-6, Massimo Di Pierro wrote:
>
> Good catch. Yet, default values are not validated (for speed reasons)
> unless they go through a form.
>
> On Wednesday, 12 December 2012 21:34:12 UTC-6, David Tucker wrote:
>>
>> Finally, I figured out the issue! In order to store a time() from epoch,
>> your db type cannot be 'time' but instead must be 'float'
>> The crud.create form I was generating let the erroneous value thru, and
>> the db wasn't liking it; however, the form within appadmin caught the issue
>> saying it needed hh:mm:ss. I imagine what happened was I set the default
>> value for the field to time() and the type to 'time' and it tried to unpack
>> a datetime.time from the float only finding 2 values (left & right of
>> decimal). In my prior post, the default value was 0, hence need more than 1
>> value to unpack. not sure this is relevant to the originally posted
>> problem, but hopefully it'll help someone in the future.
>>
>> what a noob...
>>
>>
>> On Wednesday, December 12, 2012 12:57:35 PM UTC-8, David Tucker wrote:
>>>
>>> I've narrowed down the problem. I dropped the table then added it again
>>> and started removing fields and doing the create. My problem is a field
>>> called 'expiration' that I want to set automatically for the user. My model
>>> includes 3 tables: tiers, groups, and accounts. Each account references the
>>> group it's in (every account is in a group), and each group references a
>>> tier. When an account is created, I want the expiration field of the
>>> account to be:
>>>
>>> (time since epoch in seconds)+(the new account's assigned group's tier's
>>> TTL [days] in seconds) which I have tried to achieve like so:
>>>
>>>
>>> Field('expiration', 'time',
>>>
>>> required=True,
>>>
>>> notnull=True,
>>>
>>> default=time(),
>>>
>>> writable=False,
>>>
>>> represent=lambda expiration, row:
>>> datetime.datetime.fromtimestamp(int(expiration)),
>>>
>>> compute=lambda row: time()+row.batch.tier.ttl*24*60*60)
>>>
>>>
>>> note that row.batch is the account's reference to a group (but it can't
>>> be called group since that is a reserved word)
>>>
>>> This produced problems with compute, so I circumvented by commenting it
>>> out and adding this to the creation/insert controller:
>>>
>>>
>>> group = __get_group()
>>>
>>> db.accounts.batch.default = group.id
>>>
>>> db.accounts.expiration.default = time()+(group.tier.ttl*24*60*60)
>>>
>>> form = crud.create(db.accounts, message='Account Created', next=URL(
>>> 'accounts','review')+'/[id]')
>>>
>>>
>>> I am missing something... because now i'm getting:
>>> <type 'exceptions.ValueError'> need more than 2 values to unpack
>>>
>>> ...stumped.
>>>
>>>
>>> On Wednesday, December 12, 2012 12:18:58 PM UTC-8, David Tucker wrote:
>>>>
>>>> I am having a similar problem. I did an insert using crud.create and it
>>>> went through, but now I get the error described above whenever I do
>>>> anything related to tht table... I tried this, but my notnull constraint
>>>> got in the way so I tried:
>>>>
>>>> db(db.youtable.id
>>>> >0).update(thedatetimefield=datetime.datetime.utcnow())
>>>>
>>>> and now I'm getting this traceback:
>>>>
>>>> Traceback (most recent call last):
>>>> File "gluon/main.py", line 564, in wsgibase
>>>> File "gluon/dal.py", line 529, in close_all_instances
>>>> File "gluon/dal.py", line 509, in close
>>>> File "gluon/dal.py", line 1652, in commit
>>>> OperationalError: SQL logic error or missing database
>>>>
>>>>
>>>> Any idea what's going on?
>>>>
>>>>
>>>> On Sunday, April 5, 2009 10:01:13 PM UTC-7, mdipierro wrote:
>>>>>
>>>>> Let me guess... you changed a field from 'string' to 'datetime' using
>>>>> sqlite? sqlite does not enforces field types hence it let you do the
>>>>> migration even if there was data in there that is not of type
>>>>> 'datetime'. You need to clean up that column.
>>>>>
>>>>> In your model do this
>>>>>
>>>>> db(db.youtable.id>0).update(thedatetimefield=None)
>>>>>
>>>>> run appadmin once than remove the above line.
>>>>>
>>>>> Massimo
>>>>>
>>>>>
>>>>>
>>>>> On Apr 5, 9:10 pm, "web2py <<<at>>> technicalbloke.com"
>>>>> <[email protected]> wrote:
>>>>> > Hi,
>>>>> >
>>>>> > Somehow (don't ask me how!) I've managed to bork my database :-/
>>>>> > Appadmin let's me see all my tables except one, when I click on it's
>>>>> > name it spews the message below. I don't care about the data inside,
>>>>> > I'd just like to have my database rebuilt from the model so what's
>>>>> the
>>>>> > best way to do that?
>>>>> >
>>>>> > db.my_table.truncate?
>>>>> > db.my_table.drop?
>>>>> > delete the contents of the 'databases' folder?
>>>>> >
>>>>> > Traceback (most recent call last):
>>>>> > File "/rahrahrah/web2py/gluon/restricted.py", line 98, in
>>>>> restricted
>>>>> > exec ccode in environment
>>>>> > File "/rahrahrah/web2py/applications/tcrm/views/appadmin.html",
>>>>> line
>>>>> > 102, in <module>
>>>>> > File "/rahrahrah/web2py/gluon/sqlhtml.py", line 605, in __init__
>>>>> > for (rc, record) in enumerate(sqlrows):
>>>>> > File "/rahrahrah/web2py/gluon/sql.py", line 2127, in __iter__
>>>>> > yield self[i]
>>>>> > File "/rahrahrah/web2py/gluon/sql.py", line 2082, in __getitem__
>>>>> > str(value)[:10].strip().split('-')]
>>>>> > ValueError: need more than 1 value to unpack
>>>>> >
>>>>> > Cheers,
>>>>> >
>>>>> > Roger.
>>>>
>>>>
--
