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template add date func like php's date function
{{date "Y-m-d H:i:s"}}
96 lines
3.3 KiB
Go
96 lines
3.3 KiB
Go
package beego
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//@todo add template funcs
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import (
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//"fmt"
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"errors"
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"fmt"
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"github.com/russross/blackfriday"
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"html/template"
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"strings"
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"time"
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)
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var beegoTplFuncMap template.FuncMap
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func init() {
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beegoTplFuncMap = make(template.FuncMap)
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beegoTplFuncMap["markdown"] = MarkDown
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beegoTplFuncMap["dateformat"] = DateFormat
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beegoTplFuncMap["date"] = Date
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beegoTplFuncMap["compare"] = Compare
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}
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// MarkDown parses a string in MarkDown format and returns HTML. Used by the template parser as "markdown"
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func MarkDown(raw string) (output template.HTML) {
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input := []byte(raw)
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bOutput := blackfriday.MarkdownBasic(input)
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output = template.HTML(string(bOutput))
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return
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}
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// DateFormat takes a time and a layout string and returns a string with the formatted date. Used by the template parser as "dateformat"
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func DateFormat(t time.Time, layout string) (datestring string) {
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datestring = t.Format(layout)
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return
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}
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// Date takes a PHP like date func to Go's time fomate
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func Date(t time.Time, format string) (datestring string) {
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patterns := []string{
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// year
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"Y", "2006", // A full numeric representation of a year, 4 digits Examples: 1999 or 2003
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"y", "06", //A two digit representation of a year Examples: 99 or 03
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// month
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"m", "01", // Numeric representation of a month, with leading zeros 01 through 12
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"n", "1", // Numeric representation of a month, without leading zeros 1 through 12
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"M", "Jan", // A short textual representation of a month, three letters Jan through Dec
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"F", "January", // A full textual representation of a month, such as January or March January through December
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// day
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"d", "02", // Day of the month, 2 digits with leading zeros 01 to 31
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"j", "2", // Day of the month without leading zeros 1 to 31
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// week
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"D", "Mon", // A textual representation of a day, three letters Mon through Sun
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"l", "Monday", // A full textual representation of the day of the week Sunday through Saturday
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// time
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"g", "3", // 12-hour format of an hour without leading zeros 1 through 12
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"G", "15", // 24-hour format of an hour without leading zeros 0 through 23
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"h", "03", // 12-hour format of an hour with leading zeros 01 through 12
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"H", "15", // 24-hour format of an hour with leading zeros 00 through 23
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"a", "pm", // Lowercase Ante meridiem and Post meridiem am or pm
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"A", "PM", // Uppercase Ante meridiem and Post meridiem AM or PM
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"i", "04", // Minutes with leading zeros 00 to 59
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"s", "05", // Seconds, with leading zeros 00 through 59
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}
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replacer := strings.NewReplacer(patterns...)
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format = replacer.Replace(format)
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datestring = t.Format(format)
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return
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}
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// Compare is a quick and dirty comparison function. It will convert whatever you give it to strings and see if the two values are equal.
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// Whitespace is trimmed. Used by the template parser as "eq"
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func Compare(a, b interface{}) (equal bool) {
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equal = false
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if strings.TrimSpace(fmt.Sprintf("%v", a)) == strings.TrimSpace(fmt.Sprintf("%v", b)) {
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equal = true
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}
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return
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}
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// AddFuncMap let user to register a func in the template
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func AddFuncMap(key string, funname interface{}) error {
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if _, ok := beegoTplFuncMap[key]; ok {
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beegoTplFuncMap[key] = funname
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return nil
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}
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return errors.New("funcmap already has the key")
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}
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