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// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package model
import (
"encoding/json"
"io"
"unicode/utf8"
)
const (
CHANNEL_OPEN = "O"
CHANNEL_PRIVATE = "P"
CHANNEL_DIRECT = "D"
DEFAULT_CHANNEL = "town-square"
CHANNEL_DISPLAY_NAME_MAX_RUNES = 64
CHANNEL_NAME_MIN_LENGTH = 3
CHANNEL_NAME_MAX_LENGTH = 64
CHANNEL_HEADER_MAX_RUNES = 1024
CHANNEL_PURPOSE_MAX_RUNES = 250
CHANNEL_CACHE_SIZE = 25000
)
type Channel struct {
Id string `json:"id"`
CreateAt int64 `json:"create_at"`
UpdateAt int64 `json:"update_at"`
DeleteAt int64 `json:"delete_at"`
TeamId string `json:"team_id"`
Type string `json:"type"`
DisplayName string `json:"display_name"`
Name string `json:"name"`
Header string `json:"header"`
Purpose string `json:"purpose"`
LastPostAt int64 `json:"last_post_at"`
TotalMsgCount int64 `json:"total_msg_count"`
ExtraUpdateAt int64 `json:"extra_update_at"`
CreatorId string `json:"creator_id"`
}
func (o *Channel) ToJson() string {
b, err := json.Marshal(o)
if err != nil {
return ""
} else {
return string(b)
}
}
func ChannelFromJson(data io.Reader) *Channel {
decoder := json.NewDecoder(data)
var o Channel
err := decoder.Decode(&o)
if err == nil {
return &o
} else {
return nil
}
}
func (o *Channel) Etag() string {
return Etag(o.Id, o.UpdateAt)
}
func (o *Channel) StatsEtag() string {
return Etag(o.Id, o.ExtraUpdateAt)
}
func (o *Channel) IsValid() *AppError {
if len(o.Id) != 26 {
return NewLocAppError("Channel.IsValid", "model.channel.is_valid.id.app_error", nil, "")
}
if o.CreateAt == 0 {
return NewLocAppError("Channel.IsValid", "model.channel.is_valid.create_at.app_error", nil, "id="+o.Id)
}
if o.UpdateAt == 0 {
return NewLocAppError("Channel.IsValid", "model.channel.is_valid.update_at.app_error", nil, "id="+o.Id)
}
if utf8.RuneCountInString(o.DisplayName) > CHANNEL_DISPLAY_NAME_MAX_RUNES {
return NewLocAppError("Channel.IsValid", "model.channel.is_valid.display_name.app_error", nil, "id="+o.Id)
}
if !IsValidChannelIdentifier(o.Name) {
return NewLocAppError("Channel.IsValid", "model.channel.is_valid.2_or_more.app_error", nil, "id="+o.Id)
}
if !(o.Type == CHANNEL_OPEN || o.Type == CHANNEL_PRIVATE || o.Type == CHANNEL_DIRECT) {
return NewLocAppError("Channel.IsValid", "model.channel.is_valid.type.app_error", nil, "id="+o.Id)
}
if utf8.RuneCountInString(o.Header) > CHANNEL_HEADER_MAX_RUNES {
return NewLocAppError("Channel.IsValid", "model.channel.is_valid.header.app_error", nil, "id="+o.Id)
}
if utf8.RuneCountInString(o.Purpose) > CHANNEL_PURPOSE_MAX_RUNES {
return NewLocAppError("Channel.IsValid", "model.channel.is_valid.purpose.app_error", nil, "id="+o.Id)
}
if len(o.CreatorId) > 26 {
return NewLocAppError("Channel.IsValid", "model.channel.is_valid.creator_id.app_error", nil, "")
}
return nil
}
func (o *Channel) PreSave() {
if o.Id == "" {
o.Id = NewId()
}
o.CreateAt = GetMillis()
o.UpdateAt = o.CreateAt
o.ExtraUpdateAt = o.CreateAt
}
func (o *Channel) PreUpdate() {
o.UpdateAt = GetMillis()
}
func (o *Channel) ExtraUpdated() {
o.ExtraUpdateAt = GetMillis()
}
func GetDMNameFromIds(userId1, userId2 string) string {
if userId1 > userId2 {
return userId2 + "__" + userId1
} else {
return userId1 + "__" + userId2
}
}
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