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:
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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