You can submit an issue to the pyDAL repo.
On Saturday, March 12, 2016 at 6:03:10 PM UTC-5, Val K wrote:
>
>
> I've solved my problem - just additional condition
> in dal\pydal\adapters\base.py:
>
> 298.
> 299.
> 300.
> 301.
> 302.
> 303.
>
> 304.
> 305.
> 306.
> 307.
>
>
> # must be PK reference or unique
> if rfield.type[:10] != 'reference ' and rfield.type[:14] !=
> 'big-reference ' and \
> getattr(rtable, '_primarykey', None) and rfieldname in
> rtable._primarykey or \
> rfield.unique:
> ftype = types[rfield.type[:9]] % \
> dict(length=rfield.length)
>
> # multicolumn primary key reference?
> if not rfield.unique and len(rtable._primarykey)>1:
> # then it has to be a table level FK
> if rtablename not in TFK:
>
>
> works fine!
>
>
>
>
> On Sunday, March 13, 2016 at 12:17:06 AM UTC+3, Val K wrote:
>>
>> OK! Let's dance
>>
>> This doesn't work (with SQLite at least):
>> db.define_table('a_tbl', Field('id', 'integer'), Field('name'),
>> primarykey=['id'] ) # one keyed table
>> db.define_table('b_tbl', Field('id', 'reference a_tbl.id'),
>> Field('name'), primarykey=['id']) # another keyed table
>>
>> <class 'sqlite3.OperationalError'> near "name": syntax error
>>
>>
>> sql.log:
>> *CREATE TABLE b_tbl(*
>> * id INTEGER, CONSTRAINT "FK_b_tbl_id__constraint" FOREIGN KEY (id)
>> REFERENCES a_tbl (id) ON DELETE CASCADE,** name CHAR(512),**
>> PRIMARY KEY(id)) ;*
>>
>>
>> This doesn't work too:
>> db.define_table('a_tbl', Field('id', 'integer'), Field('name'),
>> primarykey=['id'] ) # one keyed table
>> db.define_table('b_tbl', Field('id', db.a_tbl), Field('name'),
>> primarykey=['id']) # another keyed table
>> it produces the same sql.log and causes the same error - expected
>>
>>
>> But this works!:
>> db.define_table('a_tbl', Field('id', 'id'), Field('name') ) # not keyed
>> table
>> db.define_table('b_tbl', Field('id', 'reference a_tbl'), Field('name'),
>> primarykey=['id']) # keyed table that references to not keyed table
>>
>>
>> it produces another sql.log:
>> CREATE TABLE b_tbl(
>> id INTEGER REFERENCES a_tbl (id) ON DELETE CASCADE NOT NULL ,
>> name CHAR(512),
>> PRIMARY KEY(id)) ;
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Saturday, March 12, 2016 at 8:54:37 PM UTC+3, Anthony wrote:
>>>
>>> Not sure if it's a bug, but the book does say:
>>>
>>> - Keyed tables can only reference other keyed tables.
>>> - Referencing fields must use the reference tablename.fieldname
>>> format.
>>>
>>> Anthony
>>>
>>> On Saturday, March 12, 2016 at 4:52:53 AM UTC-5, Val K wrote:
>>>>
>>>> Hi!
>>>> I have a problem - look at example:
>>>>
>>>> db.define_table('a_tbl', Field('name'))
>>>> db.define_table('b_tbl', Field('id', 'reference a_tbl') ,Field('name'),
>>>> primarykey=['id'])
>>>> db.define_table('c_tbl', Field('b_tbl_id', 'reference b_tbl')
>>>> ,Field('name'))
>>>>
>>>>
>>>> *c_tbl* definition causes an error (see below) because there is
>>>> *b_tbl_id* field that references to *b_tbl* that has *id* reference
>>>> to *a_tbl*
>>>>
>>>> Is this a bug?
>>>>
>>>>
>>>>
>>>>
>>>> ----------------------------------------------------------------------------------------------------------
>>>>
>>>> <type 'exceptions.KeyError'> 'foreign_key'
>>>>
>>>> web2py™Version 2.13.4-stable+timestamp.2015.12.26.04.59.39PythonPython
>>>> 2.7.9:
>>>>
>>>>
>>>> *File D:\web2py_last\web2py\gluon\packages\dal\pydal\adapters\base.py
>>>> in create_table at line 303*
>>>> Function argument list
>>>>
>>>> (self=<pydal.adapters.sqlite.SQLiteAdapter object>, table=<Table c_tbl
>>>> (id,name)>, migrate=True, fake_migrate=False, polymodel=None)
>>>> Code listing
>>>>
>>>> 298.
>>>> 299.
>>>> 300.
>>>> 301.
>>>> 302.
>>>> 303.
>>>>
>>>> 304.
>>>> 305.
>>>> 306.
>>>> 307.
>>>>
>>>>
>>>> # must be PK reference or unique
>>>> if getattr(rtable, '_primarykey', None) and rfieldname in
>>>> rtable._primarykey or \
>>>> rfield.unique:
>>>> ftype = types[rfield.type[:9]] % \
>>>> dict(length=rfield.length)
>>>>
>>>> # multicolumn primary key reference?
>>>> if not rfield.unique and len(rtable._primarykey)>1:
>>>> # then it has to be a table level FK
>>>> if rtablename not in TFK:
>>>>
>>>>
>>>>
>>>>
>>>>
--
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