Additional information: the filtering by 'Survey name' does not seem to be working either.

When expanding a participant (to reveal his/her attributes and linked surveys), survey names are all empty in the list of surveys (other fields are correctly populated).
This may be linked to the inability to filter by survey name.

Update 2: The display issue of survey names is actually due to survey base language vs admin language.

Let's say that a participant is linked to two surveys: a survey 'survey_en' (english language), and a survey 'survey_fr' (french language).

If admin is logged using english language, upon revealing linked surveys of participant:

• row for survey 'survey_en' is present, and survey name is set
• row for survey 'survey_fr' is present, but survey name is blank (empty)

likewise, If admin is logged using french language, upon revealing linked surveys of participant:

• row for survey 'survey_en' is present, but survey name is blank (empty)
• row for survey 'survey_fr' is present, and survey name is set

This probably interacts with filtering by survey name not working.

This issue should rather go in the "Central Participants Database" category

Lots of changes have been done and searching on survey name / survey count should be working. If next release (probably tuesday) doesn't fix this, feel free to reopen.

LimeSurvey 2.0+ build 121204 released.

Hello, I finally had the time to check this, but it seems to be still unsolved.
In the cpdb list of participants, when I filter by, say, "Survey links" "Greater than" "3" , nothing happens.
(the list still shows all participants regardless of the number of surveys they're linked to).

Also, the second issue is still there: when clicking "+" next to a participants to reveal its attributes & surveys, the surveys are there but all survey titles are empty.
This issue is related to the handling of languages: they are french surveys.
If I log in as administrator using the french interface then survey titles are visible. When I log in as administrator using the english interface then survey titles are blank.
Somehow it seems to be using the admin interface language to choose the survey title to display, which is wrong.

Thanks in advance, and sorry for not being able to give a feedback earlier.

Update: I also tested the filtering by survey name, and it does not seem to be working either (the list keeps showing all participants regardless of what I set for survey name).

PS: I'm currently on LS 2.00+ build 121231.

Your hint about the language has been helpful. Not really sure how to solve it though. It is difficult to make a choice on what language to use for display and search.

When we search in all languages, and present just one it might seem that the selection was wrong since the word does not exist in the title in the display language. I think the only workable solution, from a programming point of view would be to always use the base language of the survey otherwise it would result in numerous lookups for all surveys to see if they have a matching language or not.

Thanks for the answer. Yes I agree it makes much more sense to rely on the base language of the survey for display & search. Other languages of survey, or user/admin language should not come into play.

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=11682

New version released.

Fix committed to 2.1 branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=11741