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Trac Ticket Queries

In addition to reports, Trac provides support for custom ticket queries, which can be used to display tickets that meet specified criteria.

To configure and execute a custom query, switch to the View Tickets module from the navigation bar, and select the Custom Query link.


When you first go to the query page, the default filter will display tickets relevant to you:

  • If logged in then all open tickets, it will display open tickets assigned to you.
  • If not logged in but you have specified a name or email address in the preferences, then it will display all open tickets where your email (or name if email not defined) is in the CC list.
  • If not logged in and no name/email is defined in the preferences, then all open issues are displayed.

Current filters can be removed by clicking the button to the left with the minus sign on the label. New filters are added from the pulldown lists at the bottom corners of the filters box; 'And' conditions on the left, 'Or' conditions on the right. Filters with either a text box or a pulldown menu of options can be added multiple times to perform an Or on the criteria.

You can use the fields just below the filters box to group the results based on a field, or display the full description for each ticket.

After you have edited your filters, click the Update button to refresh your results.

Some shortcuts can be used to manipulate checkbox filters.

  • Clicking on a filter row label toggles all checkboxes.
  • Pressing the modifier key while clicking on a filter row label inverts the state of all checkboxes.
  • Pressing the modifier key while clicking on a checkbox selects the checkbox and deselects all other checkboxes in the filter.

The modifier key is platform and browser dependent. On Mac the modified key is Option/Alt or Command. On Linux the modifier key is Ctrl + Alt. Opera on Windows seems to use Ctrl + Alt, while Alt is effective for other Windows browsers.

Clicking on one of the query results will take you to that ticket. You can navigate through the results by clicking the Next Ticket or Previous Ticket links just below the main menu bar, or click the Back to Query link to return to the query page.

You can safely edit any of the tickets and continue to navigate through the results using the Next/Previous/Back to Query links after saving your results. When you return to the query any tickets which were edited will be displayed with italicized text. If one of the tickets was edited such that it no longer matches the query criteria , the text will also be greyed. Lastly, if a new ticket matching the query criteria has been created, it will be shown in bold.

The query results can be refreshed and cleared of these status indicators by clicking the Update button again.

Saving Queries

Trac allows you to save the query as a named query accessible from the reports module. To save a query ensure that you have Updated the view and then click the Save query button displayed beneath the results. You can also save references to queries in Wiki content, as described below.

Note: one way to easily build queries like the ones below, you can build and test the queries in the Custom report module and when ready - click Save query. This will build the query string for you. All you need to do is remove the extra line breaks.

Note: you must have the REPORT_CREATE permission in order to save queries to the list of default reports. The Save query button will only appear if you are logged in as a user that has been granted this permission. If your account does not have permission to create reports, you can still use the methods below to save a query.

You may want to save some queries so that you can come back to them later. You can do this by making a link to the query from any Wiki page.

[query:status=new|assigned|reopened&version=1.0 Active tickets against 1.0]

Which is displayed as:

Active tickets against 1.0

This uses a very simple query language to specify the criteria, see Query Language.

Alternatively, you can copy the query string of a query and paste that into the Wiki link, including the leading ? character:

[query:?status=new&status=assigned&status=reopened&group=owner Assigned tickets by owner]

Which is displayed as:

Assigned tickets by owner

Customizing the table format

You can also customize the columns displayed in the table format (format=table) by using col=<field>. You can specify multiple fields and what order they are displayed in by placing pipes (|) between the columns:


This is displayed as:

Results (1 - 3 of 2560)

1 2 3 4 5 6 7 8 9 10 11
Ticket Resolution Summary Owner Reporter
#2885 fixed xdg-open: server returned error code 127 stdedos stdedos
#2884 fixed auto-refresh failure: cancelled Antoine Martin Antoine Martin
#2880 upstream shadow servers crashes weston Antoine Martin Antoine Martin
1 2 3 4 5 6 7 8 9 10 11

Full rows

In table format you can also have full rows by using rows=<field>:


This is displayed as:

Results (1 - 3 of 2560)

1 2 3 4 5 6 7 8 9 10 11
Ticket Resolution Summary Owner Reporter
#2885 fixed xdg-open: server returned error code 127 stdedos stdedos


"Xpra-Python3-x86_64_4.1-r27519\xpra_cmd" attach ssh://user@ip/3 --ssh="plink -ssh -agent" --modal-windows=no --title="@title@ on @@/@server-display@" --headerbar=off --opengl=no --bandwidth-limit=6Mbps

2020-09-22 11:22:34,845 Xpra GTK3 client version 4.1-r27519 64-bit
2020-09-22 11:22:34,852  running on Microsoft Windows 10
2020-09-22 11:22:38,001 GStreamer version 1.18.0 for Python 3.8.5 64-bit
2020-09-22 11:22:38,485 created named pipe '\\.\pipe\Xpra\19820'
2020-09-22 11:22:38,899 keyboard layout code 0x409
2020-09-22 11:22:38,900 identified as 'United States - English' : us
2020-09-22 11:22:39,613  keyboard settings: layout=us
2020-09-22 11:22:39,618  desktop size is 4160x1440 with 1 screen:
2020-09-22 11:22:39,618   Default (1100x381 mm - DPI: 96x96) workarea: 4160x1400
2020-09-22 11:22:39,618     Generic PnP Monitor 1600x900 at 0x534 (309x174 mm - DPI: 131x131) workarea: 1600x860 at 0x534
2020-09-22 11:22:39,619     C32JG5x 2560x1440 at 1600x0 (697x392 mm - DPI: 93x93) workarea: 2560x1400 at 1600x0
2020-09-22 11:22:44,223 enabled remote logging
2020-09-22 11:22:44,226 Xpra GTK3 X11 server version 3.0.10-r26630 64-bit
2020-09-22 11:22:44,227  running on Linux Ubuntu 16.04 xenial
2020-09-22 11:22:44,240 Attached to ip:22
2020-09-22 11:22:44,242  (press Control-C to detach)

I see

$ xdg-open /dev/shm/byobu-rlL1p8KA/printscreen 
server returned error code 127
  no clients found matching: *

I think I roughly know what the problem is: The environment variables are kind of stale (this terminal is part of a byobu, rather that directly invoked by gnome-terminal), although I don't know what exactly, since display is set correctly:

$ env | grep -i display
#2884 fixed auto-refresh failure: cancelled Antoine Martin Antoine Martin

Running a simple xterm with --quality=10, maximize and unmaximize until the lossy picture sticks.

Problem is that the server schedules an auto-refresh but a new damage event comes in and cancels it, without re-scheduling a new auto-refresh for some reason. (without even sending a draw packet?)

#2880 upstream shadow servers crashes weston Antoine Martin Antoine Martin
gdb /usr/bin/weston --modules=xwayland.so

Then run a regular xpra shadow server from there:

xpra shadow

From elsewhere (ie: X11):

xpra attach
(gdb) bt
#0  0x00007ffff7d7fadc in weston_surface_destroy () at /lib64/libweston-8.so.0
#1  0x00007ffff41329c4 in fade_out_done_idle_cb (data=0x5555557b9aa0) at ../desktop-shell/shell.c:2335
#2  0x00007ffff7d492e3 in wl_event_loop_dispatch_idle (loop=loop@entry=0x5555555691d0) at src/event-loop.c:600
#3  0x00007ffff7d4939a in wl_event_loop_dispatch (loop=0x5555555691d0, timeout=timeout@entry=-1) at src/event-loop.c:646
#4  0x00007ffff7d47f35 in wl_display_run (display=display@entry=0x555555569090) at src/wayland-server.c:1293
#5  0x00007ffff7fbbc93 in wet_main (argc=<optimized out>, argv=<optimized out>) at ../compositor/main.c:3360
#6  0x00007ffff7dd41a3 in __libc_start_main () at /lib64/libc.so.6
#7  0x00005555555550ae in _start ()
1 2 3 4 5 6 7 8 9 10 11

Query Language

query: TracLinks and the [[TicketQuery]] macro both use a mini “query language” for specifying query filters. Filters are separated by ampersands (&). Each filter consists of the ticket field name, an operator and one or more values. More than one value are separated by a pipe (|), meaning that the filter matches any of the values. To include a literal & or | in a value, escape the character with a backslash (\).

The available operators are:

= the field content exactly matches one of the values
~= the field content contains one or more of the values
^= the field content starts with one of the values
$= the field content ends with one of the values

All of these operators can also be negated:

!= the field content matches none of the values
!~= the field content does not contain any of the values
!^= the field content does not start with any of the values
!$= the field content does not end with any of the values

The date fields created and modified can be constrained by using the = operator and specifying a value containing two dates separated by two dots (..). Either end of the date range can be left empty, meaning that the corresponding end of the range is open. The date parser understands a few natural date specifications like "3 weeks ago", "last month" and "now", as well as Bugzilla-style date specifications like "1d", "2w", "3m" or "4y" for 1 day, 2 weeks, 3 months and 4 years, respectively. Spaces in date specifications can be omitted to avoid having to quote the query string.

created=2007-01-01..2008-01-01 query tickets created in 2007
created=lastmonth..thismonth query tickets created during the previous month
modified=1weekago.. query tickets that have been modified in the last week
modified=..30daysago query tickets that have been inactive for the last 30 days

See also: TracTickets, TracReports, TracGuide, TicketQuery

Last modified 4 years ago Last modified on 11/23/16 15:37:19