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Support for exporting Excel views. #27
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| package xlsx | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "unicode/utf8" | ||
|
|
||
| "github.com/tealeg/xlsx/v3" | ||
| "github.com/voidint/tsdump/model" | ||
| "github.com/voidint/tsdump/view" | ||
| ) | ||
|
|
||
| func init() { | ||
| view.Register(Name, NewView()) | ||
| } | ||
|
|
||
| const ( | ||
| // Name 视图名称 | ||
| Name = "xlsx" | ||
| ) | ||
|
|
||
| // View Markdown视图 | ||
| type View struct { | ||
| } | ||
|
|
||
| // NewView 返回Markdown视图实例 | ||
| func NewView() view.Viewer { | ||
| return new(View) | ||
| } | ||
|
|
||
| var ( | ||
| headerStyle *xlsx.Style | ||
| rowStyle *xlsx.Style | ||
| ) | ||
|
|
||
| func init() { | ||
| headerStyle = xlsx.NewStyle() | ||
| headerStyle.Border = *xlsx.NewBorder("thin", "thin", "thin", "thin") | ||
| headerStyle.ApplyBorder = true | ||
| headerStyle.Font = *xlsx.NewFont(12, "Verdana") | ||
| headerStyle.ApplyFont = true | ||
|
|
||
| rowStyle = xlsx.NewStyle() | ||
| rowStyle.Border = *xlsx.NewBorder("thin", "thin", "thin", "thin") | ||
| rowStyle.ApplyBorder = true | ||
| rowStyle.Font = *xlsx.NewFont(10, "Verdana") | ||
| rowStyle.ApplyFont = true | ||
| } | ||
|
|
||
| var headerDefs = []struct { | ||
| Title string | ||
| Width float64 | ||
| }{ | ||
| {Title: "Column", Width: 30}, | ||
| {Title: "Data Type", Width: 25}, | ||
| {Title: "Nullable", Width: 10}, | ||
| {Title: "Key", Width: 6}, | ||
| {Title: "Default", Width: 10}, | ||
| {Title: "Character Set", Width: 15}, | ||
| {Title: "Collation", Width: 20}, | ||
| {Title: "Comment", Width: 50}, | ||
| } | ||
|
|
||
| // Do 将数据库元数据以Excel视图形式输出。 | ||
| func (v *View) Do(items []model.DB, out io.Writer) error { | ||
| if len(items) <= 0 { | ||
| return nil | ||
| } | ||
| f := xlsx.NewFile() | ||
| for _, table := range items[0].Tables { | ||
| sheetName := table.Name | ||
|
|
||
| runeLength := utf8.RuneCountInString(sheetName) | ||
| if runeLength > 31 { | ||
| fmt.Fprintf(os.Stderr, "The sheet name is too long, rename %q to %q\n", sheetName, sheetName[0:31]) | ||
| sheetName = sheetName[0:31] | ||
| } | ||
|
|
||
| sheet, err := f.AddSheet(sheetName) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| continue | ||
| } | ||
| firstCell := sheet.AddRow().AddCell() | ||
| firstCell.SetString(fmt.Sprintf("Table: %s(%s)", table.Name, table.Comment)) | ||
| firstCell.Merge(7, 0) | ||
|
|
||
| header := sheet.AddRow() | ||
| for i, def := range headerDefs { | ||
| col := xlsx.NewColForRange(i, i) | ||
| col.SetWidth(def.Width) | ||
| sheet.SetColParameters(col) | ||
|
|
||
| cell := header.AddCell() | ||
| cell.SetString(def.Title) | ||
| cell.SetStyle(headerStyle) | ||
| } | ||
|
|
||
| for _, c := range table.Columns { | ||
| row := sheet.AddRow() | ||
| c0 := row.AddCell() | ||
| c0.SetString(c.Name) | ||
| c0.SetStyle(rowStyle) | ||
|
|
||
| c1 := row.AddCell() | ||
| c1.SetString(c.DataType) | ||
| c1.SetStyle(rowStyle) | ||
|
|
||
| c2 := row.AddCell() | ||
| c2.SetString(c.Nullable) | ||
| c2.SetStyle(rowStyle) | ||
|
|
||
| c3 := row.AddCell() | ||
| c3.SetString(c.Key) | ||
| c3.SetStyle(rowStyle) | ||
|
|
||
| c4 := row.AddCell() | ||
| c4.SetString(c.Default) | ||
| c4.SetStyle(rowStyle) | ||
|
|
||
| c5 := row.AddCell() | ||
| c5.SetString(c.CharSet) | ||
| c5.SetStyle(rowStyle) | ||
|
|
||
| c6 := row.AddCell() | ||
| c6.SetString(c.Collation) | ||
| c6.SetStyle(rowStyle) | ||
|
|
||
| c7 := row.AddCell() | ||
| c7.SetString(c.Comment) | ||
| c7.SetStyle(rowStyle) | ||
| } | ||
| } | ||
| defer func() { | ||
| for i := range f.Sheets { | ||
| f.Sheets[i].Close() | ||
| } | ||
| }() | ||
| return f.Write(out) | ||
| } |