leehaut opened a new issue, #8500:
URL: https://github.com/apache/hop/issues/8500
### Apache Hop version?
2.20.0
### Java version?
openjdk 21
### Operating system
Windows
### What happened?
## What happened?
CSV Input can read the filename from an upstream field. When the transform
has a hop from a previous transform:
- the dialog switches from a filename text box to a **Filename field**
dropdown
- at runtime the transform reads each incoming row’s field as a file path
**Verify this pipeline (F7)** still treats any incoming hop as a
configuration error. A valid “filename from field” pipeline therefore shows two
ERROR remarks, even though the dialog and execution match.
Observed Problems text (ERROR severity; the wording itself does not say
“error”):
```text
Transform is connected to previous one
receiving 1 fieldsTransform is receiving info from other transforms.
```
## Steps to reproduce
1. Create a pipeline: **Generate rows** → **CSV Input** → (optional Dummy).
2. In Generate rows: add one String field, e.g. `csv_path`, with a CSV file
path.
3. Open CSV Input: the dialog should show **Filename field** (not a static
filename). Set it to `csv_path` and map the CSV columns.
4. Press **Verify this pipeline (F7)**.
## Expected behavior
F7 should treat incoming hops as valid when a filename field is configured.
It should check that the filename field exists in the previous row meta, not
report “receiving input” as an error.
When there is **no** previous transform, F7 may still warn/error if a static
filename is missing.
## Actual behavior
`CsvInputMeta.check()` always marks incoming fields/hops as
`TYPE_RESULT_ERROR`:
```java
// plugins/transforms/textfile/.../csvinput/CsvInputMeta.java
if (prev == null || prev.isEmpty()) {
cr = new CheckResult(ICheckResult.TYPE_RESULT_OK, /* NotReceivingFields
*/);
} else {
cr = new CheckResult(ICheckResult.TYPE_RESULT_ERROR, /*
TransformRecevingData */);
}
if (input.length > 0) {
cr = new CheckResult(ICheckResult.TYPE_RESULT_ERROR, /*
TransformRecevingData2 */);
} else {
cr = new CheckResult(ICheckResult.TYPE_RESULT_OK, /*
NoInputReceivedFromOtherTransforms */);
}
### Issue Priority
Priority: 3
### Issue Component
Component: Hop Gui
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