OpenRefine / OpenRefine/CommonsExtension
Bug: extractFromTemplate and value.extractCategories GREL functions produce empty columns
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- Dominant language
- Java
- Stars
- 29
- Forks
- 12
- PR merge metrics
- No merged PRs in 30d
Description
I have been trying the extractFromTemplate and value.extractCategories GREL functions in various projects. Both work well in the GREL preview dialog window:
But then after clicking OK, in the project itself, both produce an empty column. I haven't been able to get it to work in any project for now, but just for testing purposes, here's a project in which it went wrong:
Barbalissos.openrefine.tar.gz
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by importing the linked Barbalissos.openrefine.tar.gz project and reproducing the difference between the GREL preview and the resulting project column. Then inspect the implementations of extractFromTemplate and value.extractCategories; done means both functions produce their expected values in the project rather than empty columns.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100