Thank you everybody, I'll try to set up a working example tomorrow.
Actually you're right, my question was formulated incorrectly, it may not
be a question of lambdas. Basically, I was trying to create a series of
routes in a reasonably concise way, something like this : 2 types of
objects (actes, constats), 2 operations (archive, unarchive), 2 variants
(handle one object, or handle a list of ids):
- /actes/{id}/archive
- /actes/{id}/unarchive
- /constats/{id}/archive
- /constats/{id}/unarchive
- /actes/-/archive_selection
- /actes/-/unarchive_selection
- /constats/-/archive_selection
- /constats/-/unarchive_selection
```
factories = {'actes': {'fact': acte_factory,
'rsrc': ActeResource},
'constats': {'fact': constat_factory,
'rsrc': ConstatResource}}
functions = {'archive': (_archive, _archive_multi),
'unarchive': (_unarchive, _unarchive_multi)}
for cat in ('actes', 'constats'):
for op in ('archive', 'unarchive'):
route_name: str = f'api.{cat}.{op}'
config.add_route(route_name, f'/{cat}/{{id}}/{op}',
factory=factories[cat]['fact'])
config.add_view(functions[op][0], route_name=route_name,
request_method='GET', renderer='json')
config.add_route(route_name + '_selection', f'/{cat}/-/{op}_selection')
config.add_view(
lambda request: functions[op][1](request, factories[cat]['rsrc']),
route_name=route_name + '_selection',
request_method='POST', renderer='json')
```
The first 4 routes (those with "{id}" in them) worked fine, but last 4
(those using lambdas) were all mapped to the same function
(`_unarchive_multi`) in the end.
In order to make them work, I had to unroll the loops and enumerate
everything. Ugly :(
```
config.add_route('api.actes.archive_selection', '/actes/-/archive_selection')
config.add_route('api.constats.archive_selection',
'/constats/-/archive_selection')
config.add_view(
lambda request: _archive_multi(request, ActeResource),
route_name='api.actes.archive_selection', request_method='POST',
renderer='json')
config.add_view(
lambda request: _archive_multi(request, ConstatResource),
route_name='api.constats.archive_selection',
request_method='POST', renderer='json')
config.add_route('api.actes.unarchive_selection',
'/actes/-/unarchive_selection')
config.add_route('api.constats.unarchive_selection',
'/constats/-/unarchive_selection')
config.add_view(
lambda request: _unarchive_multi(request, ActeResource),
route_name='api.actes.unarchive_selection', request_method='POST',
renderer='json')
config.add_view(
lambda request: _unarchive_multi(request, ConstatResource),
route_name='api.constats.unarchive_selection',
request_method='POST', renderer='json')
```
Laurent.
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