Problem Finding Field in created table #145
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Hi Com1Software, Thank you for reporting this issue. I’ll take a closer look into the problem. Meanwhile, could you verify if this issue persists with the latest version of the package? It would also be helpful if you could provide a minimal reproducible example showing how the new table is created and the FieldByName operation is used. Best regards, |
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@Com1Software I cannot reproduce the problem. Where in your code does it fail? If I see correctly, all occurrences of Alternatively, it would be helpful if you could activate the debug mode and provide me with the output: |
|
Hi Valentin,
Thanks for looking into this.
Below is a minimal program to show the problem.
When you compile and run the program the first time it will create a tag dbf
When you run it a second time it tries to find the tag and testing fields -
this is where I am seeing the error out because it cannot find the tag.
Thanks again Dave
package main
import (
"fmt"
"os"
"github.com/Valentin-Kaiser/go-dbase/dbase"
"golang.org/x/text/encoding/charmap"
)
type Tags struct {
Tag string `dbase:"TAG"`
Testing string `dbase:"TESTING"`
}
func main() {
tt := "TAGS.DBF"
if _, err := os.Stat(tt); err == nil {
table, err := dbase.OpenTable(&dbase.Config{
Filename: "TAGS.DBF",
TrimSpaces: true,
WriteLock: true,
})
if err != nil {
panic(err)
}
defer table.Close()
row, err := table.Row()
if err != nil {
panic(err)
}
p := Tags{
Testing: "test123",
}
row, err = table.RowFromStruct(p)
if err != nil {
panic(err)
}
fmt.Println(row)
err = row.FieldByName("TAG").SetValue("TAG_VALUE")
if err != nil {
panic(err)
}
err = row.FieldByName("TESTING").SetValue("TEST_VALUE")
if err != nil {
panic(err)
}
err = row.Write()
if err != nil {
panic(err)
}
fmt.Printf(
"Last modified: %v Columns count: %v Record count: %v File size: %v \n",
table.Header().Modified(0),
table.Header().ColumnsCount(),
table.Header().RecordsCount(),
table.Header().FileSize(),
)
} else {
file, err := dbase.NewTable(
dbase.FoxProVar,
&dbase.Config{
Filename: tt,
Converter: dbase.NewDefaultConverter(charmap.Windows1250),
TrimSpaces: true,
},
tcolumns(),
64,
nil,
)
if err != nil {
panic(err)
}
defer file.Close()
row, err := file.RowFromStruct(&Tags{
Tag: "TAG",
})
if err != nil {
panic(err)
}
err = row.Add()
if err != nil {
panic(err)
}
fmt.Printf(
"Last modified: %v Columns count: %v Record count: %v File size: %v \n",
file.Header().Modified(0),
file.Header().ColumnsCount(),
file.Header().RecordsCount(),
file.Header().FileSize(),
)
}
}
func tcolumns() []*dbase.Column {
tagCol, err := dbase.NewColumn("Tag", dbase.Varchar, 80, 0, false)
testCol, err := dbase.NewColumn("Testing", dbase.Character, 80, 0, true)
if err != nil {
panic(err)
}
return []*dbase.Column{
tagCol,
testCol,
}
}
…On Sun, Dec 8, 2024 at 6:22 PM Valentin Kaiser ***@***.***> wrote:
@Com1Software <https://github.com/Com1Software> I cannot reproduce the
problem. Where in your code does it fail? If I see correctly, all
occurrences of FieldByName are commented out.
Alternatively, it would be helpful if you could activate the debug mode
and provide me with the output: dbase.Debug(true, os.Stdout).
—
Reply to this email directly, view it on GitHub
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Describe the bug
A clear and concise description of what the bug is.
Does not find field in newly created table using
err = row.FieldByName("TAG").SetValue("CHANGED_PRODUCT_NAME")
Link to repo with below code
https://github.com/Com1Software/Video-Web-Server
To Reproduce
Example code to reproduce the behavior:
Expected behavior
To find the field in the created table
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Additional context
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