Django trigram_similar
I've been trying to implement trigram_similar functionality in my Django backend code. I get an error
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
web_1 | response = get_response(request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
web_1 | response = self.process_exception_by_middleware(e, request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
web_1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
web_1 | return view_func(*args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
web_1 | return self.dispatch(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 489, in dispatch
web_1 | response = self.handle_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 449, in handle_exception
web_1 | self.raise_uncaught_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 486, in dispatch
web_1 | response = handler(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/generics.py", line 201, in get
web_1 | return self.list(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/mixins.py", line 40, in list
web_1 | queryset = self.filter_queryset(self.get_queryset())
web_1 | File "/usr/local/lib/python3.6/site-packages/profilehooks.py", line 239, in new_fn
web_1 | return fp(*args, **kw)
web_1 | File "/usr/local/lib/python3.6/site-packages/profilehooks.py", line 347, in call
web_1 | return profiler.runcall(self.fn, *args, **kw)
web_1 | File "/usr/local/lib/python3.6/cProfile.py", line 109, in runcall
web_1 | return func(*args, **kw)
web_1 | File "/code/src/users/views.py", line 266, in filter_queryset
web_1 | major__name__trigram_similar = "CS"
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py", line 784, in filter
web_1 | return self._filter_or_exclude(False, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py", line 802, in _filter_or_exclude
web_1 | clone.query.add_q(Q(*args, **kwargs))
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1250, in add_q
web_1 | clause, _ = self._add_q(q_object, self.used_aliases)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1276, in _add_q
web_1 | allow_joins=allow_joins, split_subq=split_subq,
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1210, in build_filter
web_1 | condition = self.build_lookup(lookups, col, value)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1102, in build_lookup
web_1 | lhs = self.try_transform(lhs, name, lookups)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1120, in try_transform
web_1 | (name, lhs.output_field.class.name))
web_1 | django.core.exceptions.FieldError: Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted.
web_1 | 2018-11-11 19:03:58,144 ERROR Internal Server Error: /mentors/
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
web_1 | response = get_response(request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
web_1 | response = self.process_exception_by_middleware(e, request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
web_1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
web_1 | return view_func(*args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
web_1 | return self.dispatch(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 489, in dispatch
web_1 | response = self.handle_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/views.py", line 449, in handle_exception
web_1 | self.raise_uncaught_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/views.py", line 486, in dispatch
web_1 | response = handler(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/generics.py", line 201, in get
web_1 | return self.list(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/mixins.py", line 40, in list
web_1 | queryset = self.filter_queryset(self.get_queryset())
web_1 | File "/usr/local/lib/python3.6/site-
packages/profilehooks.py", line 239, in new_fn
web_1 | return fp(*args, **kw)
web_1 | File "/usr/local/lib/python3.6/site-
packages/profilehooks.py", line 347, in call
web_1 | return profiler.runcall(self.fn, *args, **kw)
web_1 | File "/usr/local/lib/python3.6/cProfile.py", line 109,
in runcall
web_1 | return func(*args, **kw)
web_1 | File "/code/src/users/views.py", line 266, in
filter_queryset
web_1 | major__name__trigram_similar = "CS"
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/query.py", line 784, in filter
web_1 | return self._filter_or_exclude(False, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/query.py", line 802, in _filter_or_exclude
web_1 | clone.query.add_q(Q(*args, **kwargs))
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1250, in add_q
web_1 | clause, _ = self._add_q(q_object, self.used_aliases)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1276, in _add_q
web_1 | allow_joins=allow_joins, split_subq=split_subq,
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1210, in build_filter
web_1 | condition = self.build_lookup(lookups, col, value)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1102, in build_lookup
web_1 | lhs = self.try_transform(lhs, name, lookups)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1120, in try_transform
web_1 | (name, lhs.output_field.class.name))
web_1 | django.core.exceptions.FieldError: Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted.
I've followed the instructions on this page https://docs.djangoproject.com/en/2.0/ref/contrib/postgres/lookups/ but to no avail. I have properly installed the dependencies and added the extra files.
for item in query:
item_alias = trans_dict.get(item.lower(),item)
major_alias = major_dict.get(item.lower(),item)
queryset = queryset.filter(
major__name__trigram_similar = major_alias
)
SOS!
python django pg-trgm
asked Nov 11 at 19:15
nwar1994
134
add a comment |
I've been trying to implement trigram_similar functionality in my Django backend code. I get an error
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
web_1 | response = get_response(request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
web_1 | response = self.process_exception_by_middleware(e, request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
web_1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
web_1 | return view_func(*args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
web_1 | return self.dispatch(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 489, in dispatch
web_1 | response = self.handle_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 449, in handle_exception
web_1 | self.raise_uncaught_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 486, in dispatch
web_1 | response = handler(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/generics.py", line 201, in get
web_1 | return self.list(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/mixins.py", line 40, in list
web_1 | queryset = self.filter_queryset(self.get_queryset())
web_1 | File "/usr/local/lib/python3.6/site-packages/profilehooks.py", line 239, in new_fn
web_1 | return fp(*args, **kw)
web_1 | File "/usr/local/lib/python3.6/site-packages/profilehooks.py", line 347, in call
web_1 | return profiler.runcall(self.fn, *args, **kw)
web_1 | File "/usr/local/lib/python3.6/cProfile.py", line 109, in runcall
web_1 | return func(*args, **kw)
web_1 | File "/code/src/users/views.py", line 266, in filter_queryset
web_1 | major__name__trigram_similar = "CS"
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py", line 784, in filter
web_1 | return self._filter_or_exclude(False, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py", line 802, in _filter_or_exclude
web_1 | clone.query.add_q(Q(*args, **kwargs))
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1250, in add_q
web_1 | clause, _ = self._add_q(q_object, self.used_aliases)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1276, in _add_q
web_1 | allow_joins=allow_joins, split_subq=split_subq,
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1210, in build_filter
web_1 | condition = self.build_lookup(lookups, col, value)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1102, in build_lookup
web_1 | lhs = self.try_transform(lhs, name, lookups)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1120, in try_transform
web_1 | (name, lhs.output_field.class.name))
web_1 | django.core.exceptions.FieldError: Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted.
web_1 | 2018-11-11 19:03:58,144 ERROR Internal Server Error: /mentors/
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
web_1 | response = get_response(request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
web_1 | response = self.process_exception_by_middleware(e, request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
web_1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
web_1 | return view_func(*args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
web_1 | return self.dispatch(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 489, in dispatch
web_1 | response = self.handle_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/views.py", line 449, in handle_exception
web_1 | self.raise_uncaught_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/views.py", line 486, in dispatch
web_1 | response = handler(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/generics.py", line 201, in get
web_1 | return self.list(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/mixins.py", line 40, in list
web_1 | queryset = self.filter_queryset(self.get_queryset())
web_1 | File "/usr/local/lib/python3.6/site-
packages/profilehooks.py", line 239, in new_fn
web_1 | return fp(*args, **kw)
web_1 | File "/usr/local/lib/python3.6/site-
packages/profilehooks.py", line 347, in call
web_1 | return profiler.runcall(self.fn, *args, **kw)
web_1 | File "/usr/local/lib/python3.6/cProfile.py", line 109,
in runcall
web_1 | return func(*args, **kw)
web_1 | File "/code/src/users/views.py", line 266, in
filter_queryset
web_1 | major__name__trigram_similar = "CS"
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/query.py", line 784, in filter
web_1 | return self._filter_or_exclude(False, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/query.py", line 802, in _filter_or_exclude
web_1 | clone.query.add_q(Q(*args, **kwargs))
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1250, in add_q
web_1 | clause, _ = self._add_q(q_object, self.used_aliases)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1276, in _add_q
web_1 | allow_joins=allow_joins, split_subq=split_subq,
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1210, in build_filter
web_1 | condition = self.build_lookup(lookups, col, value)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1102, in build_lookup
web_1 | lhs = self.try_transform(lhs, name, lookups)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1120, in try_transform
web_1 | (name, lhs.output_field.class.name))
web_1 | django.core.exceptions.FieldError: Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted.
I've followed the instructions on this page https://docs.djangoproject.com/en/2.0/ref/contrib/postgres/lookups/ but to no avail. I have properly installed the dependencies and added the extra files.
for item in query:
item_alias = trans_dict.get(item.lower(),item)
major_alias = major_dict.get(item.lower(),item)
queryset = queryset.filter(
major__name__trigram_similar = major_alias
)
SOS!
python django pg-trgm
asked Nov 11 at 19:15
nwar1994
134
Please include your error message as text, not a screenshot. Also include the relevant python code where you use trigram_similar. Minimal, Complete, and Verifiable example
– Håken Lid
Nov 11 at 19:26
'FieldError at /mentors/ Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted. Request Method: GET Request URL: localhost:8000/mentors/?query=cs Django Version: 1.11.7 Python Executable: /usr/local/bin/python3 Python Version: 3.6.7'
– nwar1994
Nov 11 at 19:31
Edit your question and add the full traceback there, not in a comment. Also include the relevant python code. The traceback includes file names and line numbers.
– Håken Lid
Nov 11 at 19:33
add a comment |
I've been trying to implement trigram_similar functionality in my Django backend code. I get an error
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
web_1 | response = get_response(request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
web_1 | response = self.process_exception_by_middleware(e, request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
web_1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
web_1 | return view_func(*args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
web_1 | return self.dispatch(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 489, in dispatch
web_1 | response = self.handle_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 449, in handle_exception
web_1 | self.raise_uncaught_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 486, in dispatch
web_1 | response = handler(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/generics.py", line 201, in get
web_1 | return self.list(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/mixins.py", line 40, in list
web_1 | queryset = self.filter_queryset(self.get_queryset())
web_1 | File "/usr/local/lib/python3.6/site-packages/profilehooks.py", line 239, in new_fn
web_1 | return fp(*args, **kw)
web_1 | File "/usr/local/lib/python3.6/site-packages/profilehooks.py", line 347, in call
web_1 | return profiler.runcall(self.fn, *args, **kw)
web_1 | File "/usr/local/lib/python3.6/cProfile.py", line 109, in runcall
web_1 | return func(*args, **kw)
web_1 | File "/code/src/users/views.py", line 266, in filter_queryset
web_1 | major__name__trigram_similar = "CS"
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py", line 784, in filter
web_1 | return self._filter_or_exclude(False, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py", line 802, in _filter_or_exclude
web_1 | clone.query.add_q(Q(*args, **kwargs))
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1250, in add_q
web_1 | clause, _ = self._add_q(q_object, self.used_aliases)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1276, in _add_q
web_1 | allow_joins=allow_joins, split_subq=split_subq,
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1210, in build_filter
web_1 | condition = self.build_lookup(lookups, col, value)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1102, in build_lookup
web_1 | lhs = self.try_transform(lhs, name, lookups)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1120, in try_transform
web_1 | (name, lhs.output_field.class.name))
web_1 | django.core.exceptions.FieldError: Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted.
web_1 | 2018-11-11 19:03:58,144 ERROR Internal Server Error: /mentors/
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
web_1 | response = get_response(request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
web_1 | response = self.process_exception_by_middleware(e, request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
web_1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
web_1 | return view_func(*args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
web_1 | return self.dispatch(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 489, in dispatch
web_1 | response = self.handle_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/views.py", line 449, in handle_exception
web_1 | self.raise_uncaught_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/views.py", line 486, in dispatch
web_1 | response = handler(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/generics.py", line 201, in get
web_1 | return self.list(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/mixins.py", line 40, in list
web_1 | queryset = self.filter_queryset(self.get_queryset())
web_1 | File "/usr/local/lib/python3.6/site-
packages/profilehooks.py", line 239, in new_fn
web_1 | return fp(*args, **kw)
web_1 | File "/usr/local/lib/python3.6/site-
packages/profilehooks.py", line 347, in call
web_1 | return profiler.runcall(self.fn, *args, **kw)
web_1 | File "/usr/local/lib/python3.6/cProfile.py", line 109,
in runcall
web_1 | return func(*args, **kw)
web_1 | File "/code/src/users/views.py", line 266, in
filter_queryset
web_1 | major__name__trigram_similar = "CS"
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/query.py", line 784, in filter
web_1 | return self._filter_or_exclude(False, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/query.py", line 802, in _filter_or_exclude
web_1 | clone.query.add_q(Q(*args, **kwargs))
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1250, in add_q
web_1 | clause, _ = self._add_q(q_object, self.used_aliases)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1276, in _add_q
web_1 | allow_joins=allow_joins, split_subq=split_subq,
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1210, in build_filter
web_1 | condition = self.build_lookup(lookups, col, value)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1102, in build_lookup
web_1 | lhs = self.try_transform(lhs, name, lookups)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1120, in try_transform
web_1 | (name, lhs.output_field.class.name))
web_1 | django.core.exceptions.FieldError: Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted.
I've followed the instructions on this page https://docs.djangoproject.com/en/2.0/ref/contrib/postgres/lookups/ but to no avail. I have properly installed the dependencies and added the extra files.
for item in query:
item_alias = trans_dict.get(item.lower(),item)
major_alias = major_dict.get(item.lower(),item)
queryset = queryset.filter(
major__name__trigram_similar = major_alias
)
SOS!
python django pg-trgm
asked Nov 11 at 19:15
nwar1994
134
I've been trying to implement trigram_similar functionality in my Django backend code. I get an error
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
web_1 | response = get_response(request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
web_1 | response = self.process_exception_by_middleware(e, request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
web_1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
web_1 | return view_func(*args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
web_1 | return self.dispatch(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 489, in dispatch
web_1 | response = self.handle_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 449, in handle_exception
web_1 | self.raise_uncaught_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 486, in dispatch
web_1 | response = handler(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/generics.py", line 201, in get
web_1 | return self.list(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/mixins.py", line 40, in list
web_1 | queryset = self.filter_queryset(self.get_queryset())
web_1 | File "/usr/local/lib/python3.6/site-packages/profilehooks.py", line 239, in new_fn
web_1 | return fp(*args, **kw)
web_1 | File "/usr/local/lib/python3.6/site-packages/profilehooks.py", line 347, in call
web_1 | return profiler.runcall(self.fn, *args, **kw)
web_1 | File "/usr/local/lib/python3.6/cProfile.py", line 109, in runcall
web_1 | return func(*args, **kw)
web_1 | File "/code/src/users/views.py", line 266, in filter_queryset
web_1 | major__name__trigram_similar = "CS"
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py", line 784, in filter
web_1 | return self._filter_or_exclude(False, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py", line 802, in _filter_or_exclude
web_1 | clone.query.add_q(Q(*args, **kwargs))
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1250, in add_q
web_1 | clause, _ = self._add_q(q_object, self.used_aliases)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1276, in _add_q
web_1 | allow_joins=allow_joins, split_subq=split_subq,
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1210, in build_filter
web_1 | condition = self.build_lookup(lookups, col, value)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1102, in build_lookup
web_1 | lhs = self.try_transform(lhs, name, lookups)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1120, in try_transform
web_1 | (name, lhs.output_field.class.name))
web_1 | django.core.exceptions.FieldError: Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted.
web_1 | 2018-11-11 19:03:58,144 ERROR Internal Server Error: /mentors/
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
web_1 | response = get_response(request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
web_1 | response = self.process_exception_by_middleware(e, request)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
web_1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
web_1 | return view_func(*args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
web_1 | return self.dispatch(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 489, in dispatch
web_1 | response = self.handle_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/views.py", line 449, in handle_exception
web_1 | self.raise_uncaught_exception(exc)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/views.py", line 486, in dispatch
web_1 | response = handler(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/generics.py", line 201, in get
web_1 | return self.list(request, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/rest_framework/mixins.py", line 40, in list
web_1 | queryset = self.filter_queryset(self.get_queryset())
web_1 | File "/usr/local/lib/python3.6/site-
packages/profilehooks.py", line 239, in new_fn
web_1 | return fp(*args, **kw)
web_1 | File "/usr/local/lib/python3.6/site-
packages/profilehooks.py", line 347, in call
web_1 | return profiler.runcall(self.fn, *args, **kw)
web_1 | File "/usr/local/lib/python3.6/cProfile.py", line 109,
in runcall
web_1 | return func(*args, **kw)
web_1 | File "/code/src/users/views.py", line 266, in
filter_queryset
web_1 | major__name__trigram_similar = "CS"
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/query.py", line 784, in filter
web_1 | return self._filter_or_exclude(False, *args, **kwargs)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/query.py", line 802, in _filter_or_exclude
web_1 | clone.query.add_q(Q(*args, **kwargs))
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1250, in add_q
web_1 | clause, _ = self._add_q(q_object, self.used_aliases)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1276, in _add_q
web_1 | allow_joins=allow_joins, split_subq=split_subq,
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1210, in build_filter
web_1 | condition = self.build_lookup(lookups, col, value)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1102, in build_lookup
web_1 | lhs = self.try_transform(lhs, name, lookups)
web_1 | File "/usr/local/lib/python3.6/site-
packages/django/db/models/sql/query.py", line 1120, in try_transform
web_1 | (name, lhs.output_field.class.name))
web_1 | django.core.exceptions.FieldError: Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted.
I've followed the instructions on this page https://docs.djangoproject.com/en/2.0/ref/contrib/postgres/lookups/ but to no avail. I have properly installed the dependencies and added the extra files.
for item in query:
item_alias = trans_dict.get(item.lower(),item)
major_alias = major_dict.get(item.lower(),item)
queryset = queryset.filter(
major__name__trigram_similar = major_alias
)
SOS!
python django pg-trgm
python django pg-trgm
asked Nov 11 at 19:15
nwar1994
134
asked Nov 11 at 19:15
nwar1994
134
edited Nov 11 at 19:43
asked Nov 11 at 19:15
nwar1994
134
asked Nov 11 at 19:15
nwar1994
134
asked Nov 11 at 19:15
nwar1994
134
134
Please include your error message as text, not a screenshot. Also include the relevant python code where you use trigram_similar. Minimal, Complete, and Verifiable example
– Håken Lid
Nov 11 at 19:26
'FieldError at /mentors/ Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted. Request Method: GET Request URL: localhost:8000/mentors/?query=cs Django Version: 1.11.7 Python Executable: /usr/local/bin/python3 Python Version: 3.6.7'
– nwar1994
Nov 11 at 19:31
Edit your question and add the full traceback there, not in a comment. Also include the relevant python code. The traceback includes file names and line numbers.
– Håken Lid
Nov 11 at 19:33
add a comment |
Please include your error message as text, not a screenshot. Also include the relevant python code where you use trigram_similar. Minimal, Complete, and Verifiable example
– Håken Lid
Nov 11 at 19:26
'FieldError at /mentors/ Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted. Request Method: GET Request URL: localhost:8000/mentors/?query=cs Django Version: 1.11.7 Python Executable: /usr/local/bin/python3 Python Version: 3.6.7'
– nwar1994
Nov 11 at 19:31
Edit your question and add the full traceback there, not in a comment. Also include the relevant python code. The traceback includes file names and line numbers.
– Håken Lid
Nov 11 at 19:33
Please include your error message as text, not a screenshot. Also include the relevant python code where you use trigram_similar. Minimal, Complete, and Verifiable example
– Håken Lid
Nov 11 at 19:26
Please include your error message as text, not a screenshot. Also include the relevant python code where you use trigram_similar. Minimal, Complete, and Verifiable example
– Håken Lid
Nov 11 at 19:26
'FieldError at /mentors/ Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted. Request Method: GET Request URL: localhost:8000/mentors/?query=cs Django Version: 1.11.7 Python Executable: /usr/local/bin/python3 Python Version: 3.6.7'
– nwar1994
Nov 11 at 19:31
'FieldError at /mentors/ Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted. Request Method: GET Request URL: localhost:8000/mentors/?query=cs Django Version: 1.11.7 Python Executable: /usr/local/bin/python3 Python Version: 3.6.7'
– nwar1994
Nov 11 at 19:31
Edit your question and add the full traceback there, not in a comment. Also include the relevant python code. The traceback includes file names and line numbers.
– Håken Lid
Nov 11 at 19:33
Edit your question and add the full traceback there, not in a comment. Also include the relevant python code. The traceback includes file names and line numbers.
– Håken Lid
Nov 11 at 19:33
add a comment |
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Please include your error message as text, not a screenshot. Also include the relevant python code where you use trigram_similar. Minimal, Complete, and Verifiable example
– Håken Lid
Nov 11 at 19:26
'FieldError at /mentors/ Unsupported lookup 'trigram_similar' for CharField or join on the field not permitted. Request Method: GET Request URL: localhost:8000/mentors/?query=cs Django Version: 1.11.7 Python Executable: /usr/local/bin/python3 Python Version: 3.6.7'
– nwar1994
Nov 11 at 19:31
Edit your question and add the full traceback there, not in a comment. Also include the relevant python code. The traceback includes file names and line numbers.
– Håken Lid
Nov 11 at 19:33