observe_survey_result_columns/3

Add header columns for export. The values are the names of the answers and the text displayed above the column. The text format is for a complete export, the html format is for the limited result overview of the Survey Results Editor.

Type:

foldl

Return:

list( {binary(), binary() | #trans{}} )

#survey_result_columns{} properties:

  • id: m_rsc:resource_id()

  • handler: binary|undefined

  • format: html|text

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