def exactly_one(l: Sequence[T]) -> T:
if len(l) > 1:
raise TooManyItemsException('Found {n} items when expecing 1 in `{l}`.'.format(n=len(l), l=l))
try:
return l[0]
except IndexError:
raise DoesNotExistException('Did not find an item when expecting one.')
def load_archetype(archetype):
try:
archetype_id = int(archetype)
except ValueError:
name = titlecase.titlecase(archetype.replace('-', ' '))
archetype_id = db().value('SELECT id FROM archetype WHERE name = ?',
[name])
if not archetype_id:
raise DoesNotExistException(
'Did not find archetype with name of `{name}`'.format(
name=name))
archetypes = load_archetypes(
'd.archetype_id IN (SELECT descendant FROM archetype_closure WHERE ancestor = {archetype_id})'
.format(archetype_id=sqlescape(archetype_id)), True)
if len(archetypes) > 1:
raise TooManyItemsException(
'Found {n} archetypes when expecting 1 at most'.format(
n=len(archetypes)))
archetype = archetypes[0] if len(archetypes) == 1 else Archetype()
# Because load_archetypes loads the root archetype and all below merged the id and name might not be those of the root archetype. Overwrite.
archetype.id = int(archetype_id)
archetype.name = db().value('SELECT name FROM archetype WHERE id = ?',
[archetype_id])
if len(archetypes) == 0:
archetype.decks = []
return archetype
def at_most_one(l: Sequence[T]) -> Optional[T]:
if len(l) > 1:
raise TooManyItemsException('Found {n} items when expecing at most 1 in `{l}`.'.format(n=len(l), l=l))
elif len(l) == 0:
return None
else:
return l[0]
def exactly_one(sequence: Sequence[T], noun: str = 'items') -> T:
if len(sequence) > 1:
raise TooManyItemsException('Found {n} {noun} when expecting 1 in `{l}`.'.format(n=len(sequence), l=sequence, noun=noun))
try:
return sequence[0]
except IndexError as e:
raise DoesNotExistException('Did not find an item when expecting one.') from e
def at_most_one(l: Sequence[T], noun: str = 'items') -> Optional[T]:
if len(l) > 1:
raise TooManyItemsException(
'Found {n} {noun} when expecting at most 1 in `{l}`.'.format(
n=len(l), l=l, noun=noun))
if len(l) == 0:
return None
return l[0]
def load_archetype(archetype_id):
archetypes = load_archetypes(
'd.archetype_id IN (SELECT descendant FROM archetype_closure WHERE ancestor = {archetype_id})'
.format(archetype_id=sqlescape(archetype_id)), True)
if len(archetypes) > 1:
raise TooManyItemsException(
'Found {n} archetypes when expecting 1 at most'.format(
n=len(archetypes)))
archetype = archetypes[0] if len(archetypes) == 1 else Archetype()
# Because load_archetypes loads the root archetype and all below merged the id and name might not be those of the root archetype. Overwrite.
archetype.id = int(archetype_id)
archetype.name = db().value('SELECT name FROM archetype WHERE id = ?',
[archetype_id])
if len(archetypes) == 0:
archetype.decks = []
return archetype
def test_500() -> Response:
if configuration.get_bool('production'):
return return_json(generate_error(
'ON_PROD', 'This only works on test environments'),
status=404)
raise TooManyItemsException()