Feature(s) impacted
After following the installation steps on an existing django projects with 5 apps and many models, I get and error when I run the server.
Observed behavior
I followed all the steps in the installation and cannot seem to connect to forest admin at the end of the installation process. Problem seems to happen when writing to the .forestadmin-schema.json file. I thought it had to do with some fields on my models being URLFields (I inspected the JSON and the validators regex seemed to cause issues).
I removed all the URLField and replaced them with CharField but didn’t work. Then the error seemed to point in the direction of DurationField I had (timedelta error). I changed all of them to CharField as well but still got the same error.
Expected behavior
I tried on an empty django project and after running the python3 manage.py runserver command, everything works fine and is connected to the forest admin UI with the local environment.
Failure Logs
❯ python3 manage.py runserver
Watching for file changes with StatReloader
Performing system checks...
System check identified no issues (0 silenced).
February 03, 2023 - 22:11:17
Django version 4.1.6, using settings 'docstring.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
Exception in thread django-main-thread:
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/threading.py", line 973, in _bootstrap_inner
self.run()
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/sentry_sdk/integrations/threading.py", line 69, in run
reraise(*_capture_exception())
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/sentry_sdk/_compat.py", line 57, in reraise
raise value
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/sentry_sdk/integrations/threading.py", line 67, in run
return old_run_func(self, *a, **kw)
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/threading.py", line 910, in run
self._target(*self._args, **self._kwargs)
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/django/utils/autoreload.py", line 64, in wrapper
fn(*args, **kwargs)
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/django/core/management/commands/runserver.py", line 157, in inner_run
handler = self.get_handler(*args, **options)
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/django/contrib/staticfiles/management/commands/runserver.py", line 31, in get_handler
handler = super().get_handler(*args, **options)
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/django/core/management/commands/runserver.py", line 78, in get_handler
return get_internal_wsgi_application()
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/django/core/servers/basehttp.py", line 47, in get_internal_wsgi_application
return import_string(app_path)
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/django/utils/module_loading.py", line 30, in import_string
return cached_import(module_path, class_name)
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/django/utils/module_loading.py", line 15, in cached_import
module = import_module(module_path)
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 850, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "/Users/thibh/docstring/docstring/wsgi.py", line 17, in <module>
init_forest()
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/django_forest/__init__.py", line 14, in init_forest
Schema.handle_schema_file()
File "/Users/thibh/docstring/.env/lib/python3.9/site-packages/django_forest/utils/schema/__init__.py", line 165, in handle_schema_file
f.write(json.dumps(cls.schema_data, indent=2))
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/__init__.py", line 234, in dumps
return cls(
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 201, in encode
chunks = list(chunks)
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 431, in _iterencode
yield from _iterencode_dict(o, _current_indent_level)
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 405, in _iterencode_dict
yield from chunks
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 325, in _iterencode_list
yield from chunks
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 405, in _iterencode_dict
yield from chunks
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 325, in _iterencode_list
yield from chunks
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 405, in _iterencode_dict
yield from chunks
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 325, in _iterencode_list
yield from chunks
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 405, in _iterencode_dict
yield from chunks
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 438, in _iterencode
o = _default(o)
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/json/encoder.py", line 179, in default
raise TypeError(f'Object of type {o.__class__.__name__} '
TypeError: Object of type timedelta is not JSON serializable
Context
- Project name: DocstringFr
Django version : 4.1.6
Python version : 3.9.6
