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refactor DeleteSheet for better readability (#1078) 

Signed-off-by: Michael Wiesenbauer <michael.wiesenbauer@ambos.io>
Co-authored-by: Michael Wiesenbauer <michael.wiesenbauer@fau.de>
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Michael Wiesenbauer 2021-12-02 15:14:57 +01:00 committed by GitHub
parent 4ca1b305fe
commit aa359f1c74
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1 changed files with 46 additions and 34 deletions
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80
sheet.go
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@ -555,48 +555,60 @@ func (f *File) DeleteSheet(name string) {
wbRels := f.relsReader(f.getWorkbookRelsPath())
activeSheetName := f.GetSheetName(f.GetActiveSheetIndex())
deleteLocalSheetID := f.GetSheetIndex(name)
// Delete and adjust defined names
if wb.DefinedNames != nil {
for idx := 0; idx < len(wb.DefinedNames.DefinedName); idx++ {
dn := wb.DefinedNames.DefinedName[idx]
if dn.LocalSheetID != nil {
localSheetID := *dn.LocalSheetID
if localSheetID == deleteLocalSheetID {
wb.DefinedNames.DefinedName = append(wb.DefinedNames.DefinedName[:idx], wb.DefinedNames.DefinedName[idx+1:]...)
idx--
} else if localSheetID > deleteLocalSheetID {
wb.DefinedNames.DefinedName[idx].LocalSheetID = intPtr(*dn.LocalSheetID - 1)
}
}
}
}
deleteAndAdjustDefinedNames(wb, deleteLocalSheetID)
for idx, sheet := range wb.Sheets.Sheet {
if strings.EqualFold(sheet.Name, sheetName) {
wb.Sheets.Sheet = append(wb.Sheets.Sheet[:idx], wb.Sheets.Sheet[idx+1:]...)
var sheetXML, rels string
if wbRels != nil {
for _, rel := range wbRels.Relationships {
if rel.ID == sheet.ID {
sheetXML = f.getWorksheetPath(rel.Target)
rels = "xl/worksheets/_rels/" + strings.TrimPrefix(f.sheetMap[sheetName], "xl/worksheets/") + ".rels"
}
if !strings.EqualFold(sheet.Name, sheetName) {
continue
}
wb.Sheets.Sheet = append(wb.Sheets.Sheet[:idx], wb.Sheets.Sheet[idx+1:]...)
var sheetXML, rels string
if wbRels != nil {
for _, rel := range wbRels.Relationships {
if rel.ID == sheet.ID {
sheetXML = f.getWorksheetPath(rel.Target)
rels = "xl/worksheets/_rels/" + strings.TrimPrefix(f.sheetMap[sheetName], "xl/worksheets/") + ".rels"
}
}
target := f.deleteSheetFromWorkbookRels(sheet.ID)
f.deleteSheetFromContentTypes(target)
f.deleteCalcChain(sheet.SheetID, "")
delete(f.sheetMap, sheet.Name)
f.Pkg.Delete(sheetXML)
f.Pkg.Delete(rels)
f.Relationships.Delete(rels)
f.Sheet.Delete(sheetXML)
delete(f.xmlAttr, sheetXML)
f.SheetCount--
}
target := f.deleteSheetFromWorkbookRels(sheet.ID)
f.deleteSheetFromContentTypes(target)
f.deleteCalcChain(sheet.SheetID, "")
delete(f.sheetMap, sheet.Name)
f.Pkg.Delete(sheetXML)
f.Pkg.Delete(rels)
f.Relationships.Delete(rels)
f.Sheet.Delete(sheetXML)
delete(f.xmlAttr, sheetXML)
f.SheetCount--
}
f.SetActiveSheet(f.GetSheetIndex(activeSheetName))
}
func deleteAndAdjustDefinedNames(wb *xlsxWorkbook, deleteLocalSheetID int) {
if wb == nil {
return
}
if wb.DefinedNames == nil {
return
}
for idx := 0; idx < len(wb.DefinedNames.DefinedName); idx++ {
dn := wb.DefinedNames.DefinedName[idx]
if dn.LocalSheetID != nil {
localSheetID := *dn.LocalSheetID
if localSheetID == deleteLocalSheetID {
wb.DefinedNames.DefinedName = append(wb.DefinedNames.DefinedName[:idx], wb.DefinedNames.DefinedName[idx+1:]...)
idx--
} else if localSheetID > deleteLocalSheetID {
wb.DefinedNames.DefinedName[idx].LocalSheetID = intPtr(*dn.LocalSheetID - 1)
}
}
}
}
// deleteSheetFromWorkbookRels provides a function to remove worksheet
// relationships by given relationships ID in the file workbook.xml.rels.
func (f *File) deleteSheetFromWorkbookRels(rID string) string {