Duplicate of http://code.google.com/p/web2py/issues/detail?id=648
The error goes away if "unique=True" is removed.

-Mandar

On Thursday, August 9, 2012 9:13:36 PM UTC+5:30, Mandar Vaze wrote:
>
> I figured out that problem is due to the way I have defined Table 
> Inheritance for mother/father/child.
> If I define fields name and description *directly* in the 
> mother/father/child tables, inserts/updates work OK.
>
> Now the question is : 
> What is wrong with the way I've defined the tables ? Here is the code for 
> your reference :
>
> name = db.Table(db, 'name',                                               
>    
>         Field('name', 'string', length=128, notnull=True, unique=True))   
>                                                                          
> name_desc = db.Table(db, 'base',
>         name,
>         Field('description', 'text', default=''))                         
>       
> db.define_table('mother', 
>                 name_desc,        
>                 format='%(name)s')
>     
> I've also checked that at database (mysql) level both name and description 
> fields are defined for the tables - May be that is why insert/update work 
> via the script.
>
> *Why does this fail via web interface - sqlform.grid ?*
>
> Thanks,
> -Mandar
>
> On Wednesday, August 8, 2012 11:14:00 PM UTC+5:30, Mandar Vaze wrote:
>>
>> I have posted this query sometime ago via google-group's web interface - 
>> but it did not appear in the list - may be it is lost or held in moderation 
>> queue (This is my first post) So I am sending this again via normal gmail 
>> interface.
>> If this is duplicate - please ignore.
>>
>> ================
>>
>> I'm using web2py version : Version 2.0.0 (2012-07-26 06:06:10) dev
>>
>> I have tables defined as follows : 
>>
>> name = db.Table(db, 'name',                                               
>>    
>>         Field('name', 'string', length=128, notnull=True, unique=True))   
>>                                                                           
>> name_desc = db.Table(db, 'base',
>>         name,
>>         Field('description', 'text', default=''))                         
>>       
>> db.define_table('mother', 
>>                 name_desc,        
>>                 format='%(name)s')    
>> db.define_table('father', 
>>                 name_desc,        
>>                 format='%(name)s')    
>> db.define_table('child',                                                 
>>          
>>         name_desc,                                                       
>>        
>>         Field('mother', db.mother),                                       
>>             
>>         Field('father', db.father),                                       
>>                                                    
>>         format='%(name)s')
>>
>> *I am able to successfully insert data in "mother" table via script 
>> (e.g. db.mother.insert(name="Alice"))*
>>
>> But when I use appadmin to insert new record into mother table, I get the 
>> following error :
>> I have a sqlform.grid somewhere in the app, I get same error there too ( 
>> I think appadmin also uses sqlform.grid internally)
>>
>>
>> Traceback (most recent call last):
>>   File "/home/mandar/web2py/gluon/restricted.py", line 205, in restricted
>>     exec ccode in environment
>>   File "/home/mandar/web2py/applications/test1/controllers/appadmin.py", 
>> line 432, in <module>
>>   File "/home/mandar/web2py/gluon/globals.py", line 182, in <lambda>
>>     self._caller = lambda f: f()
>>   File "/home/mandar/web2py/applications/test1/controllers/appadmin.py", 
>> line 127, in insert
>>     if form.accepts(request.vars, session):
>>   File "/home/mandar/web2py/gluon/sqlhtml.py", line 1146, in accepts
>>     hideerror=hideerror,
>>   File "/home/mandar/web2py/gluon/html.py", line 1870, in accepts
>>     status = self._traverse(status,hideerror)
>>   File "/home/mandar/web2py/gluon/html.py", line 793, in _traverse
>>     newstatus = c._traverse(status,hideerror) and newstatus
>>   File "/home/mandar/web2py/gluon/html.py", line 793, in _traverse
>>     newstatus = c._traverse(status,hideerror) and newstatus
>>   File "/home/mandar/web2py/gluon/html.py", line 793, in _traverse
>>     newstatus = c._traverse(status,hideerror) and newstatus
>>   File "/home/mandar/web2py/gluon/html.py", line 793, in _traverse
>>     newstatus = c._traverse(status,hideerror) and newstatus
>>   File "/home/mandar/web2py/gluon/html.py", line 800, in _traverse
>>     newstatus = self._validate()
>>   File "/home/mandar/web2py/gluon/html.py", line 1625, in _validate
>>     (value, errors) = validator(value)
>>   File "/home/mandar/web2py/gluon/validators.py", line 554, in __call__
>>     table = self.dbset.db[tablename]
>>   File "/home/mandar/web2py/gluon/dal.py", line 6877, in __getitem__
>>     return dict.__getitem__(self, str(key))
>> KeyError: 'name'
>>
>> Similarly, after populating mother/father and child tables via script 
>> when I try to update "child" record - In the dropdown I see mother's names 
>> instead of ID (as expected) but when I select different "mother" and submit 
>> I get same error (traceback may be slightly different - but same 
>> KeyError:'name' )
>>
>> What is wrong with the table definitions ?
>>
>> Thanks,
>> -Mandar
>>
>> P.S: This may be similar to 
>> https://groups.google.com/d/msg/web2py/XR4T92l2rJ4/dtTRnO0e7dcJ
>>  
>

-- 



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