On Jul 20, 2009, at 7:22 AM, mdipierro wrote:

>
> The error is here:
>
> IS_NOT_IN_DB(db,db.strona)
>
> the second argument has to be a field, not a table.

Would it be an overcomplication to sprinkle a few asserts throughout  
web2py to help out with this kind of thing? I can imagine it'd speed  
development, without having an impact on production performance.  
Asserts are useful documentation as well.

>
> On Jul 20, 8:10 am, Karol Grębski <[email protected]> wrote:
>> I'm not sure if I'm doing something wrong, or if it's a bug in  
>> web2py,
>> but I get an interesting ticket when I try tu submit a new news into
>> my database. Any sudgestions?
>>
>> ***
>>
>> Traceback (most recent call last):
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/restricted.py", line
>> 107, in restricted
>>     exec ccode in environment
>>   File "/home/mlody/Desktop/cherry/web2py/applications/komi/
>> controllers/default.py", line 106, in <module>
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/globals.py", line  
>> 100,
>> in <lambda>
>>     self._caller = lambda f: f()
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/tools.py", line 1256,
>> in f
>>     return action(*a, **b)
>>   File "/home/mlody/Desktop/cherry/web2py/applications/komi/
>> controllers/default.py", line 65, in nowa_wiesc
>>     if form.accepts(request.vars, session):
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/sqlhtml.py", line  
>> 709,
>> in accepts
>>     onvalidation,
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/html.py", line 1122,
>> in accepts
>>     status = self._traverse(status)
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/html.py", line 439,  
>> in
>> _traverse
>>     newstatus = c._traverse(status) and newstatus
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/html.py", line 439,  
>> in
>> _traverse
>>     newstatus = c._traverse(status) and newstatus
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/html.py", line 439,  
>> in
>> _traverse
>>     newstatus = c._traverse(status) and newstatus
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/html.py", line 439,  
>> in
>> _traverse
>>     newstatus = c._traverse(status) and newstatus
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/html.py", line 446,  
>> in
>> _traverse
>>     newstatus = self._validate()
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/html.py", line 935,  
>> in
>> _validate
>>     (value, errors) = validator(value)
>>   File "/home/mlody/Desktop/cherry/web2py/gluon/validators.py", line
>> 303, in __call__
>>     (tablename, fieldname) = str(self.field).split('.')
>> ValueError: need more than 1 value to unpack
>>
>> ***
>>
>> The controller function is:
>>
>> ***
>>
>> @auth.requires_login()
>> def nowa_wiesc():
>>     form = SQLFORM.factory(
>>         SQLField('tytul', requires=[IS_NOT_EMPTY(), IS_NOT_IN_DB(db,
>> db.strona)]),
>>         SQLField('tresc', 'text', requires=IS_NOT_EMPTY()),
>>         SQLField('zrodlo', length=2000, requires=IS_NULL_OR(IS_URL
>> ())),
>>         labels={'tytul':'Tytuł', 'tresc':'Treść wieści',
>> 'zrodlo':'Link do źródła'})
>>
>>     if form.accepts(request.vars, session):
>>         strona_id = db.strona.insert(
>>             tytul=form.vars.tytul,
>>             adres=CLEANUP(form.vars.tytul),
>>             tresc=form.vars.tresc,
>>             statyczna=False
>>             status=2)
>>
>>         wiesc_id = db.wiesc.insert(
>>             strona=strona_id,
>>             zrodlo=form.vars.zrodlo)
>>
>>         db.wiesc_glos.insert(wiesc=wiesc_id)
>>
>>         redirect(URL(r=request, f='wiesc', args=CLEANUP
>> (form.vars.tytul)))
>>
>>     return dict(formularz=form)
>>
>> ***
>>
>> And my model is:
>>
>> ***
>>
>> db.define_table('strona',
>>     SQLField('tytul'),
>>     SQLField('adres'),
>>     SQLField('statyczna', 'boolean'),
>>     SQLField('tresc', 'text'),
>>     SQLField('kto', db.auth_user),
>>     SQLField('kiedy', 'datetime'),
>>     SQLField('status', 'integer'))
>>
>> db.strona.tytul.length = 120
>> db.strona.tytul.requires = IS_NOT_EMPTY()
>> db.strona.adres.requires = IS_NOT_EMPTY()
>> db.strona.kto.default = auth.user.id if auth.user else 0
>> db.strona.kto.writable = False
>> db.strona.kiedy.default = request.now
>> db.strona.kiedy.writable = False
>>
>> db.define_table('wiesc',
>>     SQLField('strona', db.strona),
>>     SQLField('zrodlo'))
>>
>> db.wiesc.zrodlo.length = 2000
>>
>> db.define_table('wiesc_glos',
>>     SQLField('kto', db.auth_user),
>>     SQLField('kiedy', 'datetime'),
>>     SQLField('wiesc', db.wiesc))
>>
>> db.wiesc_glos.kto.default = auth.user.id if auth.user else 0
>> db.wiesc_glos.kto.writable = False
>> db.wiesc_glos.kiedy.default = request.now
>> db.wiesc_glos.kiedy.writable = False
>>
>> ***
>>
>> I also think I should explain some conventions:
>>  - the table 'strona' conatins generally all type of pages content
>> (articles, news etc),
>>   - 'tytul' means 'title',
>>   - 'tresc' means 'content',
>>   - 'adres' means 'adres' ;) (I use that for a cleaned version of the
>> title which I use in URLs),
>>   - 'statyczna' means 'static' (true if it's not any 'special' page
>> type like an article, a news etc),
>>   - 'kto' means 'who',
>>   - 'kiedy' means 'when',
>>   - 'status' can have 3 values: 0 means that the page is a draft, 1
>> that it is private, 2 that it is public,
>>  - the table 'wiesc' contains news (the shared functionality of
>> different page types is put into 'pages' - that's somewhat similiar  
>> to
>> the 'nodes' idea in Drupal, if you're familiar with it),
>>   - 'strona' is of course a refference to a page,
>>   - 'zrodlo' contains a URL which is the source of the news,
>>  - the users can vote on news - it should work somewhat similiar to
>> digg - that's what the 'wiesc_glos' table is for,
>>   - 'kto' means 'who' (the user who voted),
>>   - 'kiedy' means 'when' (when the vote was made, I'm not really sure
>> if I need this one...),
>>   - 'wiesc' is (as you can see) a relation with a news (the news that
>> the user votes for).
>>
>> (Jeez, I have to switch to english names, or it'll be a pain in the
>> ass to ask for help here more frequently. ^^)
>>
>> What I'm trying to do in the controller is to create a new news  
>> (which
>> needs a page). I also assume that the news author would vote on the
>> news, so I do that automatically. The problem seems to be with the
>> 'form.accepts' call. Am I doing something wrong with it?
>>
>> Cheers!
> >



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