diff options
Diffstat (limited to 'modules/templates/helper.go')
| -rw-r--r-- | modules/templates/helper.go | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/modules/templates/helper.go b/modules/templates/helper.go index 94464fe628..8779de69ca 100644 --- a/modules/templates/helper.go +++ b/modules/templates/helper.go @@ -9,6 +9,7 @@ import ( "html" "html/template" "net/url" + "reflect" "slices" "strings" "time" @@ -237,8 +238,8 @@ func DotEscape(raw string) string { // Iif is an "inline-if", similar util.Iif[T] but templates need the non-generic version, // and it could be simply used as "{{Iif expr trueVal}}" (omit the falseVal). -func Iif(condition bool, vals ...any) any { - if condition { +func Iif(condition any, vals ...any) any { + if IsTruthy(condition) { return vals[0] } else if len(vals) > 1 { return vals[1] @@ -246,6 +247,32 @@ func Iif(condition bool, vals ...any) any { return nil } +func IsTruthy(v any) bool { + if v == nil { + return false + } + + rv := reflect.ValueOf(v) + switch rv.Kind() { + case reflect.Bool: + return rv.Bool() + case reflect.String: + return rv.String() != "" + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return rv.Int() != 0 + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + return rv.Uint() != 0 + case reflect.Float32, reflect.Float64: + return rv.Float() != 0 + case reflect.Slice, reflect.Array, reflect.Map: + return rv.Len() > 0 + case reflect.Ptr: + return !rv.IsNil() && IsTruthy(reflect.Indirect(rv).Interface()) + default: + return rv.Kind() == reflect.Struct && !rv.IsNil() + } +} + // Eval the expression and return the result, see the comment of eval.Expr for details. // To use this helper function in templates, pass each token as a separate parameter. // |