Anity repetition group filter error

Users
1

Good afternoon,

I am working with two repetitions in my form:

  1. First repetition: Contains a category and a subcategory, which are automatically generated N times.
  2. Second repetition: Lists products filtered according to the subcategory of the current repetition.

Problem:
When the second repetition is displayed more than once, I get the following error:

css

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Xpath nodeset has more than one node [/data/PlanInversion[1]/GrupoRepeticionPlanI[1]/Plan[1]/QListPlanInversion[1]/RepeticionSubcategorias[1]/SubcategoriaPruebaCurrent[1]M/data/PlanInversion[1]/GrupoRepeticionPlanI[1]/Plan[1]/QListPlanInversion[1]/repeticionSubcategoria[2]/SubcategoriaPruebaCurrent[1]];  
cannot convert multiple nodes to a raw value. Refine path expression to match only one node.

If the second repetition is executed only once, the error does not occur.

Current setup:

  • Filter in the product variable:

xpath

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contains(Subcategoria, #form/PlanInversion/GrupoRepeticionPlanI/Plan/QListPlanInversion/RepeticionSubcategorias/CalculoSubcategoriaFiltrado)
  • Calculation of CalculoSubcategoriaFiltrado:

xpath

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selected-at(current()/../../CalculoSubcategoria, 0)
  • Calculation of CalculoSubcategoria:

xpath

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instance('item-list:CategoriaSubCategoriaPlanIn')/CategoriaSubCategoriaPlanIn_list/CategoriaSubCategoriaPlanIn[Codigo = current()/../CodigoRepeticion]/Subcategoria

I have attached the form in XLF format for better clarity.

I would really appreciate your help, as I have been trying to resolve this issue for several days without success.Código formulario

2

Hi Leidy,

Thanks for reaching out!

When you face the issue "Cannot convert multiple nodes to a raw value. Refine path expression to match only one node ." in a repeat group, it means that in one of your question's calculations (or any configuration of the question) is expecting a single node but as per the logical statement you are using results in multiple nodes and CommCare is unable to resolve as to which node it should use do process your logical statement.

There could be multiple other reasons for Commcare throwing the multiple node error but the core of the reason remains the same i.e. somewhere some question calculation or a question which uses a calculation (which is further used in another question type like a label) is referring to a multiple node as a result of its calculation. In a couple of cases, this error also results from referring to a variable without using a correct reference to a question within a repeat group. If you use easy references with double-nested repeat groups the app can get confused pretty fast.

More information on how to identify and resolve this error can be found in our public wiki here.

If you'd like I'd love to take a closer look at your form and try and see what's going on. I've requested access to the form XLF document you provided, but if you could provide a link to the form/application you are experiencing this in, that would help too.

Looking forward to hearing back from you and getting to the bottom of this issue.

Best,

Kaleb
CommCare Support