Fixed the UI bug not showing already selected entries for the multi select filter#4494
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Fixed the UI bug not showing already selected entries for the multi select filter#4494gabriel-bolbotina wants to merge 4 commits into
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Withalion
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May 18, 2026
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Co-authored-by: Matej Bagar <matej.bagar@lutraconsulting.co.uk>
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Solved the UI issue described in issue by converting the string values saved in currentValue to numeric ones which are used in Value Relation with AllowMulti option turned on. In this sense, the UI will show the previously selected entries from the Multi select filter.
The other bug mentioned regarding the filter itself will be solved in the QGIS plugin by modifying the template query for Value Relation with AllowMulti on to something like this:
"sql_expression": "(',' || TRIM(\"NAME_OF_FIELD\", '{}') || ',' ) LIKE '%,' || @@value@@ || ',%'"(detailed here)Once the template query is modified, the existing business logic in the code already handles this type of filtering with "OR" option.