I change this to a patch, as this relates to my feature request #12248.

Thanks. Nice to see that there's some progress. :-)

I'll test your patch as soon as possible.
--------------------------------------------------------------------------------
It's a very good idea to group the filter, *but* for a common user there is no difference between standard fields and custom fields. Moreover a non-admin user shouldn't differ between standard fields and custom fields. Technical details have to be hidden. It would be more user-friedly using semantic grouping like "Date fields" or "Shown fields", don't you think? Your proposed group "Related issue" fulfills this idea.
--------------------------------------------------------------------------------
Well there is a difference for a normal user. Custom fields won't be available on all projects, regular fields will.
--------------------------------------------------------------------------------
Ok, you are right. The question for me is, if it's important to know that a filter is a custom filter or not?
--------------------------------------------------------------------------------
This is new patch.
* Grouped by non date / date / related issues
* Not grouped by custom field

!date1.png!
!date2.png!

--------------------------------------------------------------------------------
I closed #12248 as duplicate, so I change this issue tracker and copy target version.
--------------------------------------------------------------------------------
Because the filters list is very long, it is hard to find what I want to use.
It would be nice if the patch get merged into the trunk.
--------------------------------------------------------------------------------
Patch has already been completed a year ago. The patch improves the user interface of Redmine.

Could you consider to merge this patch?
--------------------------------------------------------------------------------
This is a patch for current trunk. 'grouped-filter-trunk-r11902.diff' conflicts with en.yml.
--------------------------------------------------------------------------------
This is a patch for current trunk(r13551). This patch will greatly improve usability.

I would like to set target version to 3.0.0. Please return to "Candidate for next major release" if there is any problem.
--------------------------------------------------------------------------------
Feature added in r13662, with the following changes:
* Keep the first filters ungrouped
* Don't group date filters when there's just one (eg. time entries filters)
* Group association filters too (eg. filters on project custom fields)
* Tests added
--------------------------------------------------------------------------------
Great! Thanks a lot.
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

relates,Closed,22147,Change "Related issues" label for generic grouped query filters
duplicates,Closed,12248,Grouped Filters