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116 lines
1.8 KiB
Go
116 lines
1.8 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See License.txt for license information.
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package model
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import (
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"encoding/json"
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"io"
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)
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type PostList struct {
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Order []string `json:"order"`
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Posts map[string]*Post `json:"posts"`
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}
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func NewPostList() *PostList {
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return &PostList{
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Order: make([]string, 0),
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Posts: make(map[string]*Post),
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}
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}
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func (o *PostList) ToJson() string {
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b, err := json.Marshal(o)
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if err != nil {
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return ""
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} else {
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return string(b)
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}
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}
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func (o *PostList) MakeNonNil() {
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if o.Order == nil {
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o.Order = make([]string, 0)
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}
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if o.Posts == nil {
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o.Posts = make(map[string]*Post)
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}
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for _, v := range o.Posts {
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v.MakeNonNil()
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}
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}
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func (o *PostList) AddOrder(id string) {
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if o.Order == nil {
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o.Order = make([]string, 0, 128)
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}
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o.Order = append(o.Order, id)
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}
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func (o *PostList) AddPost(post *Post) {
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if o.Posts == nil {
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o.Posts = make(map[string]*Post)
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}
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o.Posts[post.Id] = post
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}
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func (o *PostList) Extend(other *PostList) {
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for _, postId := range other.Order {
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if _, ok := o.Posts[postId]; !ok {
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o.AddPost(other.Posts[postId])
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o.AddOrder(postId)
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}
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}
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}
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func (o *PostList) Etag() string {
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id := "0"
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var t int64 = 0
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for _, v := range o.Posts {
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if v.UpdateAt > t {
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t = v.UpdateAt
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id = v.Id
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} else if v.UpdateAt == t && v.Id > id {
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t = v.UpdateAt
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id = v.Id
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}
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}
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orderId := ""
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if len(o.Order) > 0 {
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orderId = o.Order[0]
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}
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return Etag(orderId, id, t)
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}
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func (o *PostList) IsChannelId(channelId string) bool {
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for _, v := range o.Posts {
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if v.ChannelId != channelId {
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return false
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}
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}
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return true
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}
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func PostListFromJson(data io.Reader) *PostList {
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decoder := json.NewDecoder(data)
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var o PostList
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err := decoder.Decode(&o)
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if err == nil {
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return &o
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} else {
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return nil
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}
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}
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