Bug: psycopg2 error /center-summary

[csbarnet]

What happened?

in the center_summary view in coldfront.core.portal.views the query assigned to total_grants_by_agency_sum raises an error that prevents /center-summary from rendering properly.

The cause seems to be applying the Sum aggregation to the "total_amount_awarded" field, which is defined as aa a custom "Money" field in the model, which inherits from models.CharField. https://github.com/ubccr/coldfront/blob/main/coldfront/core/grant/models.py

In my case, I have no grants in the postgresql database.

Version

1.1.7

Component

Other

What browsers are you seeing the problem on?

Chrome

Relevant log output

Internal Server Error: /center-summary
Traceback (most recent call last):
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/backends/utils.py", line 89, in _execute
    return self.cursor.execute(sql, params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
psycopg2.errors.UndefinedFunction: function sum(character varying) does not exist
LINE 1: SELECT "grant_grantfundingagency"."name", SUM("grant_grant"....
                                                  ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.


The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/core/handlers/exception.py", line 55, in inner
    response = get_response(request)
               ^^^^^^^^^^^^^^^^^^^^^
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/core/handlers/base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/coldfront/coldfront/coldfront/coldfront/core/portal/views.py", line 139, in center_summary
    total_grants_by_agency_sum = list(
                                 ^^^^^
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/models/query.py", line 398, in __iter__
    self._fetch_all()
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/models/query.py", line 1881, in _fetch_all
    self._result_cache = list(self._iterable_class(self))
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/models/query.py", line 208, in __iter__
    for row in compiler.results_iter(
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/models/sql/compiler.py", line 1513, in results_iter
    results = self.execute_sql(
              ^^^^^^^^^^^^^^^^^
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/models/sql/compiler.py", line 1562, in execute_sql
    cursor.execute(sql, params)
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/backends/utils.py", line 67, in execute
    return self._execute_with_wrappers(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/backends/utils.py", line 80, in _execute_with_wrappers
    return executor(sql, params, many, context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/backends/utils.py", line 84, in _execute
    with self.db.wrap_database_errors:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/utils.py", line 91, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "/home/coldfront/coldfront/coldfront/.venv/lib/python3.12/site-packages/django/db/backends/utils.py", line 89, in _execute
    return self.cursor.execute(sql, params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
django.db.utils.ProgrammingError: function sum(character varying) does not exist
LINE 1: SELECT "grant_grantfundingagency"."name", SUM("grant_grant"....
                                                  ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.

Tasks/ user tests when bug is fixed

no tests currently exist for this view.

[csbarnet]

#794 fixes this issue