Files
gitea/modules/optional/option.go
T
666e6e2d17 fix(web): allow clearing the full name in profile settings (#40186)
Clearing "Full Name" in the profile settings shows success but keeps the
old value: since #31959 it is only updated when non-empty, because the
input is disabled (not submitted) when `change_full_name` is disabled.

Use `*string` for the field, so a missing field keeps the value and an
empty one clears it. With `change_full_name` disabled, any submitted
value (including empty) is now rejected. Not `optional.Option[string]`,
because `MaxSize` would count slice elements instead of characters.

Fixes #40185

---
AI disclosure: written with Claude Code (claude-opus-5-5) and tested
locally.

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>
2026-11-04 01:42:41 +00:00

86 lines
1.9 KiB
Go

// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package optional
import "strconv"
// Option is a generic type that can hold a value of type T or be empty (None).
//
// It must use the slice type to work with "chi" form values binding:
// * non-existing value are represented as an empty slice (None)
// * existing value is represented as a slice with one element (Some)
// * multiple values are represented as a slice with multiple elements (Some), the Value is the first element (not well-defined in this case)
//
// Attention: Option[T] doesn't work with some web middleware binding rules like "MaxSize" at the moment.
type Option[T any] []T
func None[T any]() Option[T] {
return nil
}
func Some[T any](v T) Option[T] {
return Option[T]{v}
}
func FromPtr[T any](v *T) Option[T] {
if v == nil {
return None[T]()
}
return Some(*v)
}
func FromMapLookup[K comparable, V any](m map[K]V, k K) Option[V] {
if v, ok := m[k]; ok {
return Some(v)
}
return None[V]()
}
func FromNonDefault[T comparable](v T) Option[T] {
var zero T
if v == zero {
return None[T]()
}
return Some(v)
}
func (o Option[T]) Has() bool {
return o != nil
}
func (o Option[T]) Value() T {
var zero T
return o.ValueOrDefault(zero)
}
func (o Option[T]) ValueOrDefault(v T) T {
if o.Has() {
return o[0]
}
return v
}
// ParseBool get the corresponding optional.Option[bool] of a string using strconv.ParseBool
func ParseBool(s string) Option[bool] {
v, e := strconv.ParseBool(s)
if e != nil {
return None[bool]()
}
return Some(v)
}
func AssignPtrValue[T comparable](changed *bool, target, src *T) {
if src != nil && *src != *target {
*target = *src
*changed = true
}
}
func AssignPtrString[TO, FROM ~string](changed *bool, target *TO, src *FROM) {
if src != nil && string(*src) != string(*target) {
*target = TO(*src)
*changed = true
}
}