[Django] #28526: Remedy verbose, often unhelpful undefined tempate variable logging

[Django]

#28526: Remedy verbose, often unhelpful undefined tempate variable logging
------------------------------------------------+------------------------
Reporter: Tim Graham | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Template system | Version: master
Severity: Normal | Keywords:
Triage Stage: Accepted | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
------------------------------------------------+------------------------
As [https://groups.google.com/d/topic/django-
developers/zdULZcmAWNw/discussion discussed on django-developers], ticket
#18773 added logging of undefined template variables in Django 1.9
[dc5b01ad05e50ccde688c73c2ed3334a956076b0], however, I've seen several
reports of users finding this logging more confusing than helpful. For
example, [https://groups.google.com/forum/#!topic/django-
users/6Ve9dcv23sI/discussion admin templates log errors about missing
is_popup variables] which is how the template are designed (is_popup is
only in the contexts of pop ups) and the `TECHNICAL_404_TEMPLATE` (now
`django/views/templates/technical_404.html`) also logs errors (#26886)
without any obvious solution about how to prevent that. Also #28516 shows
the many warnings logged for an admin changelist page.

--
Ticket URL: <https://code.djangoproject.com/ticket/28526>
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[Django]

#28526: Remedy verbose, often unhelpful undefined tempate variable logging

-------------------------------------+-------------------------------------
Reporter: Tim Graham | Owner: Tim
Type: | McCurrach
Cleanup/optimization | Status: assigned

Component: Template system | Version: master

Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

-------------------------------------+-------------------------------------
Changes (by Tim McCurrach):

* owner: nobody => Tim McCurrach
* status: new => assigned

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:1>

[Django]

#28526: Remedy verbose, often unhelpful undefined tempate variable logging

-------------------------------------+-------------------------------------
Reporter: Tim Graham | Owner: Tim
Type: | McCurrach
Cleanup/optimization | Status: assigned

Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

-------------------------------------+-------------------------------------
Changes (by Tim McCurrach):

* owner: nobody => Tim McCurrach
* status: new => assigned

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:1>

[Django]

#28526: Remedy verbose, often unhelpful undefined tempate variable logging

--------------------------------------+------------------------------------
Reporter: Tim Graham | Owner: (none)
Type: Cleanup/optimization | Status: new
Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

--------------------------------------+------------------------------------
Changes (by Tim McCurrach):

* owner: Tim McCurrach => (none)
* status: assigned => new

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:2>

[Django]

#28526: Remedy verbose, often unhelpful undefined tempate variable logging

--------------------------------------+------------------------------------
Reporter: Tim Graham | Owner: (none)

Type: Cleanup/optimization | Status: new
Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

--------------------------------------+------------------------------------
Changes (by Adam Johnson):

* cc: Adam Johnson (added)

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:3>

[Django]

#28526: Remedy verbose, often unhelpful undefined tempate variable logging

--------------------------------------+------------------------------------
Reporter: Tim Graham | Owner: (none)

Type: Cleanup/optimization | Status: new
Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

--------------------------------------+------------------------------------
Comment (by Natalia Bidart):

Ticket #35716 is related, possibly a duplicate.
--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:4>

[Django]

#28526: Remedy verbose, often unhelpful undefined tempate variable logging

-------------------------------------+-------------------------------------
Reporter: Tim Graham | Owner: Jacob
Type: | Walls
Cleanup/optimization | Status: assigned

Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0

Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

-------------------------------------+-------------------------------------
Changes (by Sarah Boyce):

* has_patch: 0 => 1
* owner: (none) => Jacob Walls

* status: new => assigned

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:5>

[Django]

#28526: Remedy verbose, often unhelpful undefined tempate variable logging

-------------------------------------+-------------------------------------
Reporter: Tim Graham | Owner: Jacob
Type: | Walls
Cleanup/optimization | Status: assigned
Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 1

Easy pickings: 0 | UI/UX: 0

-------------------------------------+-------------------------------------
Changes (by Sarah Boyce):

* needs_better_patch: 0 => 1

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:6>

[Django]

#28526: Remedy verbose, often unhelpful undefined tempate variable logging

-------------------------------------+-------------------------------------
Reporter: Tim Graham | Owner: Jacob
Type: | Walls
Cleanup/optimization | Status: assigned
Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0

Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

-------------------------------------+-------------------------------------
Changes (by Jacob Walls):

* needs_better_patch: 1 => 0

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:7>

[Django]

#28526: Remedy verbose, often unhelpful undefined template variable logging

-------------------------------------+-------------------------------------
Reporter: Tim Graham | Owner: Jacob
Type: | Walls
Cleanup/optimization | Status: assigned
Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0

Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

-------------------------------------+-------------------------------------
Changes (by Jacob Walls):

* summary: Remedy verbose, often unhelpful undefined tempate variable
logging => Remedy verbose, often unhelpful undefined template variable
logging

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:8>

[Django]

#28526: Remedy verbose, often unhelpful undefined template variable logging
-------------------------------------+-------------------------------------
Reporter: Tim Graham | Owner: Jacob
Type: | Walls
Cleanup/optimization | Status: assigned
Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Ready for
| checkin
Has patch: 1 | Needs documentation: 0

Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

-------------------------------------+-------------------------------------
Changes (by Sarah Boyce):

* stage: Accepted => Ready for checkin

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:9>

[Django]

#28526: Remedy verbose, often unhelpful undefined template variable logging
-------------------------------------+-------------------------------------
Reporter: Tim Graham | Owner: Jacob
Type: | Walls
Cleanup/optimization | Status: assigned
Component: Template system | Version: dev
Severity: Normal | Resolution:
Keywords: | Triage Stage: Ready for
| checkin

Has patch: 1 | Needs documentation: 0

Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

-------------------------------------+-------------------------------------
Comment (by Sarah Boyce <42296566+sarahboyce@…>):

In [changeset:"7894776bc99e42f20e0919fc9027e6db542957d5" 7894776b]:
{{{#!CommitTicketReference repository=""
revision="7894776bc99e42f20e0919fc9027e6db542957d5"
Refs #28526 -- Provided URLResolver namespace in technical 404 template.

This avoids looking up the nonexistent "name" attribute on URLResolver,
which logs verbosely.
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:10>

[Django]

#28526: Remedy verbose, often unhelpful undefined template variable logging

--------------------------------------+------------------------------------
Reporter: Tim Graham | Owner: (none)

Type: Cleanup/optimization | Status: new
Component: Template system | Version: dev
Severity: Normal | Resolution:

Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0

--------------------------------------+------------------------------------
Changes (by Sarah Boyce):

* has_patch: 1 => 0
* owner: Jacob Walls => (none)
* stage: Ready for checkin => Accepted

* status: assigned => new

--
Ticket URL: <https://code.djangoproject.com/ticket/28526#comment:11>