50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
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package handlers
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import (
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"net/http"
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"strings"
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)
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// SQL fragment: nine i18n text columns on resources.
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const resourceI18nColsSQL = `
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COALESCE(r.title_zh_tw,''), COALESCE(r.title_zh_cn,''), COALESCE(r.title_en,''),
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COALESCE(r.description_zh_tw,''), COALESCE(r.description_zh_cn,''), COALESCE(r.description_en,''),
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COALESCE(r.body_text_zh_tw,''), COALESCE(r.body_text_zh_cn,''), COALESCE(r.body_text_en,'')`
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type resourceTextI18n struct {
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TitleZhTw, TitleZhCn, TitleEn string
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DescZhTw, DescZhCn, DescEn string
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BodyZhTw, BodyZhCn, BodyEn string
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}
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func pickLangField(r *http.Request, zhTW, zhCN, en string) string {
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lang := strings.TrimSpace(r.URL.Query().Get("lang"))
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if lang == "" {
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lang = r.Header.Get("Accept-Language")
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}
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lang = strings.ToLower(strings.TrimSpace(strings.Split(lang, ",")[0]))
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switch {
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case strings.HasPrefix(lang, "zh-cn"), lang == "zh-hans":
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if zhCN != "" {
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return zhCN
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}
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case strings.HasPrefix(lang, "en"):
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if en != "" {
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return en
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}
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}
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if zhTW != "" {
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return zhTW
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}
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if zhCN != "" {
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return zhCN
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}
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return en
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}
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func (t resourceTextI18n) pick(r *http.Request) (title, description, body string) {
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return pickLangField(r, t.TitleZhTw, t.TitleZhCn, t.TitleEn),
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pickLangField(r, t.DescZhTw, t.DescZhCn, t.DescEn),
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pickLangField(r, t.BodyZhTw, t.BodyZhCn, t.BodyEn)
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}
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