I see there are many questions on the workings of ondelete and oncreate
callbacks of the grid and smartgrid, but I can't find a valid answer.
The book says that all but ondelete take a form object as input.
Searching for answers in web2py-users topics:
- *grid/smartgrid ondelete issue*
- *Re: [web2py] Re: SQLFORM.smartgrid oncreate,ondelete not firing *.
Here a format of: def myondelete(table, row_id):... is advised. But then
why the book doesn't mention the ondelete other arguments, i.e. table and
row_id?
- *Examples for SQLFORM.grid oncreate, onupdate, ondelete* Here an
example is given for a oncreate function, which still doesn't seem to fire
in my case. Having some 'print' inside these callbacks, doesn't produce
anything for some reason...
The code at sqlhtml.py (1928 line) is:
elif deletable and len(request.args) > 2 and request.args[-3] ==
'delete':
table = db[request.args[-2]]
if ondelete:
ondelete(table, request.args[-1])
ret = db(table[table._id.name] == request.args[-1]).delete()
which doesn't have any:
request.args[-3] == 'delete'
Still, if I don't define an ondelete function, the row is deleted properly
by pressing the 'Delete' button. If I do declare a ondelete callback, the
row again is removed from the interface, but having a refresh, the
'deleted' line is back on!
In my case the link that the Delete button is pointing to is:
http://127.0.0.1:8000/lims/default/my_analyses/analyses/samples.analysis/1?_signature=dfc73167259232e58a520cbf7a60d8d52e783fbb#null
Which I think is wrong, because it is the same for my listed samples. E.g.
All the links of the Delete buttons point to the same direction!!
However the adjacent Edit button (e.g. for sample 4) is pointing to:
http://127.0.0.1:8000/lims/default/my_analyses/analyses/samples.analysis/1/edit/samples/8?_signature=55fe76676f0c1f9f97ee30d710af231e317d8b3e
Which is different for every Edit button of my rows.
It would be great, If someone could provide some clear explanation, and a
working example, of the ondelete and the oncreate callbacks...
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