gosora/common/reply.go

141 lines
3.9 KiB
Go

/*
*
* Reply Resources File
* Copyright Azareal 2016 - 2018
*
*/
package common
import (
"database/sql"
"errors"
"time"
"../query_gen/lib"
)
type ReplyUser struct {
ID int
ParentID int
Content string
ContentHtml string
CreatedBy int
UserLink string
CreatedByName string
Group int
CreatedAt time.Time
RelativeCreatedAt string
LastEdit int
LastEditBy int
Avatar string
ClassName string
ContentLines int
Tag string
URL string
URLPrefix string
URLName string
Level int
IPAddress string
Liked bool
LikeCount int
ActionType string
ActionIcon string
}
type Reply struct {
ID int
ParentID int
Content string
CreatedBy int
Group int
CreatedAt time.Time
RelativeCreatedAt string
LastEdit int
LastEditBy int
ContentLines int
IPAddress string
Liked bool
LikeCount int
}
var ErrAlreadyLiked = errors.New("You already liked this!")
var replyStmts ReplyStmts
type ReplyStmts struct {
isLiked *sql.Stmt
createLike *sql.Stmt
delete *sql.Stmt
addLikesToReply *sql.Stmt
removeRepliesFromTopic *sql.Stmt
getParent *sql.Stmt
}
func init() {
DbInits.Add(func(acc *qgen.Accumulator) error {
replyStmts = ReplyStmts{
isLiked: acc.Select("likes").Columns("targetItem").Where("sentBy = ? and targetItem = ? and targetType = 'replies'").Prepare(),
createLike: acc.Insert("likes").Columns("weight, targetItem, targetType, sentBy").Fields("?,?,?,?").Prepare(),
delete: acc.Delete("replies").Where("rid = ?").Prepare(),
addLikesToReply: acc.Update("replies").Set("likeCount = likeCount + ?").Where("rid = ?").Prepare(),
removeRepliesFromTopic: acc.Update("topics").Set("postCount = postCount - ?").Where("tid = ?").Prepare(),
getParent: acc.SimpleLeftJoin("replies", "topics", "topics.tid, topics.title, topics.content, topics.createdBy, topics.createdAt, topics.is_closed, topics.sticky, topics.parentID, topics.ipaddress, topics.postCount, topics.likeCount, topics.data", "replies.tid = topics.tid", "rid = ?", "", ""),
}
return acc.FirstError()
})
}
// TODO: Write tests for this
// TODO: Wrap these queries in a transaction to make sure the state is consistent
func (reply *Reply) Like(uid int) (err error) {
var rid int // unused, just here to avoid mutating reply.ID
err = replyStmts.isLiked.QueryRow(uid, reply.ID).Scan(&rid)
if err != nil && err != ErrNoRows {
return err
} else if err != ErrNoRows {
return ErrAlreadyLiked
}
score := 1
_, err = replyStmts.createLike.Exec(score, reply.ID, "replies", uid)
if err != nil {
return err
}
_, err = replyStmts.addLikesToReply.Exec(1, reply.ID)
return err
}
// TODO: Write tests for this
func (reply *Reply) Delete() error {
_, err := replyStmts.delete.Exec(reply.ID)
if err != nil {
return err
}
// TODO: Move this bit to *Topic
_, err = replyStmts.removeRepliesFromTopic.Exec(1, reply.ParentID)
tcache := Topics.GetCache()
if tcache != nil {
tcache.Remove(reply.ParentID)
}
return err
}
func (reply *Reply) Topic() (*Topic, error) {
topic := Topic{ID: 0}
err := replyStmts.getParent.QueryRow(reply.ID).Scan(&topic.ID, &topic.Title, &topic.Content, &topic.CreatedBy, &topic.CreatedAt, &topic.IsClosed, &topic.Sticky, &topic.ParentID, &topic.IPAddress, &topic.PostCount, &topic.LikeCount, &topic.Data)
topic.Link = BuildTopicURL(NameToSlug(topic.Title), topic.ID)
return &topic, err
}
// Copy gives you a non-pointer concurrency safe copy of the reply
func (reply *Reply) Copy() Reply {
return *reply
}
func BlankReply(ids ...int) *Reply {
var id int
if len(ids) != 0 {
id = ids[0]
}
return &Reply{ID: id}
}