Error: Object of type datetime is not JSON serializable

[matthew-a-dunlap]

Hello!

This project is great. I've run into an issue though. I was trying to run this (unfinished) query:

select m.id, m.pub_name, m.pub_id, m.contents_restricted, 
	array_agg(s.updated_at) as sub_dates
from main_manuscript m
left join main_submission s on m.id=s.manuscript_id
group by m.id, m.pub_name, m.pub_id, m.contents_restricted
order by m.id

The problem is that django-sql-dashboard errors out because it doesn't know how to serialize the s.updated_at DateTime field for working with array_agg.

As far as I could tell the only way to fix this would be to fork the codebase? Am I missing something? Thanks!

[simonw]

Definitely a bug!

[simonw]

Looks like this replicates the bug:

select ARRAY[now()]

[simonw]

Or this:

select TIMESTAMP WITH TIME ZONE '2004-10-19 10:23:54+02'

This works and returns a column called timestamptz containing 2004-10-19 08:23:54+00:00.

This does not work:

select ARRAY[TIMESTAMP WITH TIME ZONE '2004-10-19 10:23:54+02']

[simonw]

This is the code causing the error:

django-sql-dashboard/django_sql_dashboard/utils.py

Lines 53 to 56 in ea3c2be

	for cell in row:
	if isinstance(cell, (dict, list)):
	cell = json.dumps(cell)
	fixed_row.append(cell)

[simonw]

OK, fix is out in 1.0.2: https://github.com/simonw/django-sql-dashboard/releases/tag/1.0.2

[matthew-a-dunlap]

Awesome! Thanks so much :)