Filling out the form fields in docx using golang library unioffice - go

Question

I'm trying to fill out the form fields using unioffice library. The document that i'm working with, contains several paragraphs. The paragraphs contains several form fields.
I want to fill out all of the form fields in the document. And here is the code i'm running:
doc, err := document.Open("form.docx")
if err != nil {
log.Fatalf("error opening form: %s", err)
}
for i := range doc.FormFields() {
doc.FormFields()[i].SetValue("test")
}
doc.SaveToFile("filled-form.docx")
However, not all of the form fields were filled out.

Answer 1

Looks to me like a bug in func (d *Document) Save(w io.Writer) error{}. I can read and write to every of the FormFields but only the last FormField value in the paragraph gets actually saved to the file.
Below code works like expected until you save to file. (That means it prints out the previously set value). I saw you already opened a new issue on github (link) i hope you have more luck with that.
package main
import (
"github.com/unidoc/unioffice/document"
"io/ioutil"
"log"
"os"
)
func main() {
_, err := ioutil.ReadFile("filled-form.docx")
if err == nil {
err = os.Remove("filled-form.docx")
if err != nil {
log.Fatal(err)
}
}
doc, err := document.Open("form.docx")
if err != nil {
log.Fatalf("error opening form: %s", err)
}
for _, f := range doc.FormFields() {
if f.Type() == document.FormFieldType(1) {
f.SetValue("test")
}
}
for _, f := range doc.FormFields() {
log.Println("-------------------")
log.Println(f.Name())
log.Println(f.Value())
}
err = doc.SaveToFile("filled-form.docx")
if err != nil {
log.Fatal(err)
}
}