Commit graph

6 commits

Author SHA1 Message Date
Lunny Xiao
bd820aa9c5
Add context cache as a request level cache (#22294)
To avoid duplicated load of the same data in an HTTP request, we can set
a context cache to do that. i.e. Some pages may load a user from a
database with the same id in different areas on the same page. But the
code is hidden in two different deep logic. How should we share the
user? As a result of this PR, now if both entry functions accept
`context.Context` as the first parameter and we just need to refactor
`GetUserByID` to reuse the user from the context cache. Then it will not
be loaded twice on an HTTP request.

But of course, sometimes we would like to reload an object from the
database, that's why `RemoveContextData` is also exposed.

The core context cache is here. It defines a new context
```go
type cacheContext struct {
	ctx  context.Context
	data map[any]map[any]any
        lock sync.RWMutex
}

var cacheContextKey = struct{}{}

func WithCacheContext(ctx context.Context) context.Context {
	return context.WithValue(ctx, cacheContextKey, &cacheContext{
		ctx:  ctx,
		data: make(map[any]map[any]any),
	})
}
```

Then you can use the below 4 methods to read/write/del the data within
the same context.

```go
func GetContextData(ctx context.Context, tp, key any) any
func SetContextData(ctx context.Context, tp, key, value any)
func RemoveContextData(ctx context.Context, tp, key any)
func GetWithContextCache[T any](ctx context.Context, cacheGroupKey string, cacheTargetID any, f func() (T, error)) (T, error)
```

Then let's take a look at how `system.GetString` implement it.

```go
func GetSetting(ctx context.Context, key string) (string, error) {
	return cache.GetWithContextCache(ctx, contextCacheKey, key, func() (string, error) {
		return cache.GetString(genSettingCacheKey(key), func() (string, error) {
			res, err := GetSettingNoCache(ctx, key)
			if err != nil {
				return "", err
			}
			return res.SettingValue, nil
		})
	})
}
```

First, it will check if context data include the setting object with the
key. If not, it will query from the global cache which may be memory or
a Redis cache. If not, it will get the object from the database. In the
end, if the object gets from the global cache or database, it will be
set into the context cache.

An object stored in the context cache will only be destroyed after the
context disappeared.
2023-02-15 21:37:34 +08:00
Felipe Leopoldo Sologuren Gutiérrez
15c035775a
Add main landmark to templates and adjust titles (#22670)
* Add main aria landmark to templates
 * Adjust some titles to improve understanding of location in navigation

Contributed by @Forgejo
2023-02-01 22:56:10 +00:00
Yarden Shoham
77f50356f4
Remove useless "Cancel" buttons (#21872)
* Continues #21381

These buttons have no real use. To cancel, one would simply navigate
away.

Signed-off-by: Yarden Shoham <hrsi88@gmail.com>
2022-12-05 20:38:34 +08:00
Gusted
d55a0b7238
Refactor i18n to locale (#20153)
* Refactor `i18n` to `locale`

- Currently we're using the `i18n` variable naming for the `locale`
struct. This contains locale's specific information and cannot be used
for general i18n purpose, therefore refactoring it to `locale` makes
more sense.
- Ref: https://github.com/go-gitea/gitea/pull/20096#discussion_r906699200

* Update routers/install/install.go
2022-06-27 15:58:46 -05:00
qwerty287
d2d9bc846e
Use disable_form_autofill on Codebase and Gitbucket (#17936)
Removes the old fake input on the Codebase migration screen, and adds the disable_form_autofill
2021-12-08 22:33:14 +00:00
KN4CK3R
87be76213a
Add migrate from Codebase (#16768)
This PR adds [Codebase](https://www.codebasehq.com/) as migration source.

Supported:
- Milestones
- Issues
- Pull Requests
- Comments
- Labels
2021-12-02 23:24:02 +01:00