In order to determine which functions in a controller file to expose as
actions, web2py uses the following regex (the intention is to identify only
functions that take no arguments and don't start with a double underscore):
'^def\s+(?P<name>_?[a-zA-Z0-9]\w*)\( *\)\s*:'
As you can see, this does not support type hints. Feel free to open an
issue on Github or submit a pull request to allow type hints.
In the meantime, you can create a separate function with the type hint and
call that function from within a non-hinted action:
def get_approval():
return hinted_get_approval()
Anthony
On Friday, March 8, 2019 at 9:31:58 AM UTC-5, João Matos wrote:
>
> If I write this function
>
> from typing import Dict
>
> @auth.requires(lambda: (auth.requires_login() and request.env.http_referer
> and ('/client' in request.env.http_referer
> or '/client/get_approval' in
> request.env.http_referer)))
> def get_approval() -> Dict[str, SQLFORM]:
> """Get approval for deletion.
>
> :return: Dict with form.
> """
> rec_id: str = request.args[0]
>
> rows_dic: Dict[int, str] = {**general.get_members(db, SUPERVISOR_ROLE),
> **general.get_members(db, MANAGER_ROLE)}
>
> form = SQLFORM.factory(
> Field('user_id', label=T('Supervisor/Manager'),
> requires=IS_IN_SET(rows_dic, zero=T('Choose one...'))),
> Field('password', 'password', label=T('Password'),
> requires=IS_NOT_EMPTY()),
> buttons=[BUTTON(T('Submit'), _type='submit', _class='btn
> btn-primary')],
> formstyle='table3cols',
> )
> ...
> return dict(form=form)
>
>
> web2py shows a web page with the message
> invalid function (client/get_approval)
>
>
> If however I write it without the return type on the header
>
> from typing import Dict
>
> @auth.requires(lambda: (auth.requires_login() and request.env.http_referer
> and ('/client' in request.env.http_referer
> or '/client/get_approval' in
> request.env.http_referer)))
> def get_approval():
> # type: () -> Dict[str, SQLFORM]
> """Get approval for deletion.
>
> :return: Dict with form.
> """
> rec_id: str = request.args[0]
>
> rows_dic: Dict[int, str] = {**general.get_members(db, SUPERVISOR_ROLE),
> **general.get_members(db, MANAGER_ROLE)}
>
> form = SQLFORM.factory(
> Field('user_id', label=T('Supervisor/Manager'),
> requires=IS_IN_SET(rows_dic, zero=T('Choose one...'))),
> Field('password', 'password', label=T('Password'),
> requires=IS_NOT_EMPTY()),
> buttons=[BUTTON(T('Submit'), _type='submit', _class='btn
> btn-primary')],
> formstyle='table3cols',
> )
> ...
> return dict(form=form)
>
>
> it all works.
>
>
> I even tried with just -> Dict to see if it was a problem with SQLFORM,
> but it returns the same message.
>
>
> Windows 7 Pro x64 SP1+all updates
> Firefox 65.0.2 x64
> Python 3.7.1 x86
> web2py 2.18.3
>
--
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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