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69 lines
1.5 KiB
Go
69 lines
1.5 KiB
Go
package helpers
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import (
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"github.com/aymerick/raymond"
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"github.com/lestrrat-go/strftime"
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"github.com/mickael-menu/zk/util"
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"github.com/mickael-menu/zk/util/date"
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)
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// RegisterDate registers the {{date}} template helpers which format a given date.
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//
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// It supports various styles: short, medium, long, full, year, time,
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// timestamp, timestamp-unix or a custom strftime format.
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//
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// {{date}} -> 2009-11-17
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// {{date "medium"}} -> Nov 17, 2009
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// {{date "%Y-%m"}} -> 2009-11
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func RegisterDate(logger util.Logger, date date.Provider) {
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raymond.RegisterHelper("date", func(opt interface{}) string {
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format := "%Y-%m-%d"
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arg, ok := opt.(string)
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if ok {
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format = findFormat(arg)
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}
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res, err := strftime.Format(format, date.Date(), strftime.WithUnixSeconds('s'))
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if err != nil {
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logger.Printf("the {{date}} template helper failed to format the date: %v", err)
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return ""
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}
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return res
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})
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}
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var (
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shortFormat = `%m/%d/%Y`
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mediumFormat = `%b %d, %Y`
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longFormat = `%B %d, %Y`
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fullFormat = `%A, %B %d, %Y`
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yearFormat = `%Y`
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timeFormat = `%H:%M`
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timestampFormat = `%Y%m%d%H%M`
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timestampUnixFormat = `%s`
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)
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func findFormat(key string) string {
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switch key {
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case "short":
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return shortFormat
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case "medium":
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return mediumFormat
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case "long":
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return longFormat
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case "full":
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return fullFormat
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case "year":
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return yearFormat
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case "time":
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return timeFormat
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case "timestamp":
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return timestampFormat
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case "timestamp-unix":
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return timestampUnixFormat
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default:
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return key
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}
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}
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