Datasource-grouping only works for first associated section

[twiro]

I have the following scenario:

• One "Images"-section is used to manage all images of two other sections "Projects" and "News".
• The entries in the "Images"-section are associated to a single entry of on of these two "parent"-sections. I use a (hidden) SBL-field called "entry" for that.
• I have a datasource called "images" that pulls all the images for the currently needed entries.
• On specific fronted pages I have to show images for multiple entries, so I want to group the entries in the "images"-datasource by their parent-entry.

This results in the following buggy behavior:

• The image-entries associated to entries of the first parent-section "Projects" show up as expected in the datasource (grouped by parent-entry).
• The image-entries associated to entries of the second parent-section "News" simply disappear.

As soon as I turn off grouping all expected image-entries (of both parent-sections) are included in the datasource again. I also tried switching to a more fancy name than "entry" for the SBL-field - doesn't do a difference. I also tested this scenario with Association Field - obviously has the same bug.

Setup:

• Symphony 2.6.11
• Selectbox Link Field 2.0.0
• Association Field 2.0.1

[nitriques]

Hum that's weird.
Do you have the same problem with Symphony 2.7.0 ?

[twiro]

Do you have the same problem with Symphony 2.7.0 ?

Yep. Just replicated the exact same issue with the following Setup:

• Symphony 2.7.0
• Selectbox Link Field 2.0.1
• Association Field 2.0.2

[twiro]

A few screenshots to illustrate my test-setting:

Section "Projects"

Section "News"

Section "Images"

Section "Images" - "Parent Entry" Selectbox Link Field

Frontend Test Case

Now I build a datasource "projects" including all 4 entries from the "projects"-section, another datasource named "news" including all 4 entries from the "news"-section and a third datasource named "images" that is filtered by the ds-params of the first two datasources. The filter-settings look like this:

If a don't activate grouping the output of the datasource "images" looks like this:

If i activate grouping by "parent entry" the output changes to this:

So obviously datasource-grouping by entries of a SBL- or association-field doesn't work as expected if the SBL- or association-field contains entries from multiple sections.

[nitriques]

Doesn't work as expected if the SBL- or association-field contains entries from multiple sections.

The problem I see are missing records, but the order seems correct (A is before C). I am right ?

Also, what happens if you change the order direction (meaning it should find a News entry before a Project entry)

Thanks for those super awesomely detailed explanation @twiro