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model_tag.go
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/
model_tag.go
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package ambient
import (
"strings"
"time"
)
// TagList represents a list of sortable tags.
type TagList []Tag
func (t TagList) Len() int {
return len(t)
}
func (t TagList) Swap(i, j int) {
t[i], t[j] = t[j], t[i]
}
func (t TagList) Less(i, j int) bool {
return t[i].Name < t[j].Name
}
// Tag represents a tag on a post or page.
type Tag struct {
Name string `json:"name"`
Timestamp time.Time `json:"timestamp"`
}
// String returns a comma separated list of tags.
func (t TagList) String() string {
arr := make([]string, 0)
for _, v := range t {
arr = append(arr, v.Name)
}
return strings.Join(arr, ",")
}
// Split returns a list of tags from a comma separated list.
func (t TagList) Split(s string) TagList {
trimmed := strings.TrimSpace(s)
// Return an empty object since split returns 1 element when empty.
if len(trimmed) == 0 {
return TagList{}
}
ts := time.Now()
arrTags := make([]Tag, 0)
tags := strings.Split(trimmed, ",")
for _, v := range tags {
arrTags = append(arrTags, Tag{
Name: strings.TrimSpace(v),
Timestamp: ts,
})
}
return arrTags
}