github.com/gogf/gf@v1.16.9/i18n/gi18n/gi18n_ctx.go (about)

     1  // Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
     2  //
     3  // This Source Code Form is subject to the terms of the MIT License.
     4  // If a copy of the MIT was not distributed with this file,
     5  // You can obtain one at https://github.com/gogf/gf.
     6  
     7  // Package gi18n implements internationalization and localization.
     8  package gi18n
     9  
    10  import "context"
    11  
    12  const (
    13  	ctxLanguage = "I18nLanguage"
    14  )
    15  
    16  // WithLanguage append language setting to the context and returns a new context.
    17  func WithLanguage(ctx context.Context, language string) context.Context {
    18  	if ctx == nil {
    19  		ctx = context.TODO()
    20  	}
    21  	return context.WithValue(ctx, ctxLanguage, language)
    22  }
    23  
    24  // LanguageFromCtx retrieves and returns language name from context.
    25  // It returns an empty string if it is not set previously.
    26  func LanguageFromCtx(ctx context.Context) string {
    27  	if ctx == nil {
    28  		return ""
    29  	}
    30  	v := ctx.Value(ctxLanguage)
    31  	if v != nil {
    32  		return v.(string)
    33  	}
    34  	return ""
    35  }