MathModDB items not properly rendered

[AurelaShehu]

There a few recently created items from MathModDB, that are mapped to profile pages, but they are not properly rendered.

Examples:

• https://portal.mardi4nfdi.de/wiki/Item:Q6821356 mapped to https://portal.mardi4nfdi.de/wiki/Crop_canopy_development
• https://portal.mardi4nfdi.de/wiki/Crop_phenological_development
• https://portal.mardi4nfdi.de/wiki/Estimation_of_astronomical_daylength
• https://portal.mardi4nfdi.de/wiki/Estimation_of_potential_crop_biomass_production
• https://portal.mardi4nfdi.de/wiki/Baudu_concentration-dependent_affinity_formulation
• https://portal.mardi4nfdi.de/wiki/Baudu_denominator_exponent_constraint
• https://portal.mardi4nfdi.de/wiki/Baudu_numerator_exponent_constraint
• https://portal.mardi4nfdi.de/wiki/Heat_unit_accumulation_equation
  .....

Could you please fix the problem?

[physikerwelt]

This seems to be a bug. The links in one direction work, but not in the other direction. In theory, it should not even be possible to create one-way links. I will need to dig into the code to understand how exactly the backlinks are created.

[physikerwelt]

I just removed the link and added it back and it works for https://portal.mardi4nfdi.de/w/index.php?title=Item%3AQ6821356&diff=49569052&oldid=47153629

[AurelaShehu]

I just removed the link and added it back and it works for https://portal.mardi4nfdi.de/w/index.php?title=Item%3AQ6821356&diff=49569052&oldid=47153629

Ok, I will do the same trick with the rest of the problematic items to get a consistent version at the moment.
I tried for this one and it works https://portal.mardi4nfdi.de/wiki/Crop_phenological_development
but I get some error from my lua script which I have to understand why.

[AurelaShehu]

I just removed the link and added it back and it works for https://portal.mardi4nfdi.de/w/index.php?title=Item%3AQ6821356&diff=49569052&oldid=47153629

Ok, I will do the same trick with the rest of the problematic items to get a consistent version at the moment. I tried for this one and it works https://portal.mardi4nfdi.de/wiki/Crop_phenological_development but I get some error from my lua script which I have to understand why.

I fixed manually the many entries in MathModDB with your trick.

Regarding the error coming from the LUA function, I observed the following:

I have this SPARQL query in my LUA function (adapted here to showcase the specific example):

PREFIX entityId: <https://portal.mardi4nfdi.de/entity/Q6821279>
SELECT ?URL ?Label  
WHERE {
             entityId: wdt:P1513 ?URL.
	     ?URL rdfs:label ?Label
	     FILTER(LANG(?Label) = "en")
}

When I try it on the SPARQL endpoint, it gives wrongly no results.
The problem, which was not there before, lies in the label. When I try having the label optional like this:

PREFIX entityId: <https://portal.mardi4nfdi.de/entity/Q6821279>

SELECT ?URL ?Label  
WHERE {
             entityId: wdt:P1513 ?URL .

             OPTIONAL {
                               ?URL rdfs:label ?Label .
                               FILTER(LANG(?Label) = "en")
               }
}

it works and gives the correct one result.
Any idea why?

[physikerwelt]

@AurelaShehu you can use the describe keyword to see everything that is stored on blazegraph about that item. It shows no label and a timestamp of Dec 20th.

@eloiferrer can that be that the blazegraph updates were lost because of the full disk?

Maybe slightly offtopic, but why do you need the label. My preference would be to leave the label handling to the ui