/
resource.go
464 lines (375 loc) · 11.6 KB
/
resource.go
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// Copyright 2016 The StudyGolang Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// http://studygolang.com
// Author:polaris polaris@studygolang.com
package logic
import (
"net/url"
"strconv"
"time"
"sander/db"
"sander/logger"
"sander/model"
"github.com/fatih/structs"
"github.com/polaris1119/set"
"golang.org/x/net/context"
)
type ResourceLogic struct{}
var DefaultResource = ResourceLogic{}
// Publish 增加(修改)资源
func (ResourceLogic) Publish(ctx context.Context, me *model.Me, form url.Values) (err error) {
uid := me.Uid
resource := &model.Resource{}
if form.Get("id") != "" {
id := form.Get("id")
_, err = db.MasterDB.Id(id).Get(resource)
if err != nil {
logger.Error("ResourceLogic Publish find error:%+v", err)
return
}
if !CanEdit(me, resource) {
err = NotModifyAuthorityErr
return
}
fields := []string{"title", "catid", "form", "url", "content"}
if form.Get("form") == model.LinkForm {
form.Set("content", "")
} else {
form.Set("url", "")
}
for _, field := range fields {
form.Del(field)
}
err = schemaDecoder.Decode(resource, form)
if err != nil {
logger.Error("ResourceLogic Publish decode error:", err)
return
}
_, err = db.MasterDB.Id(id).Update(resource)
if err != nil {
logger.Error("更新资源 【%s】 信息失败:%s\n", id, err)
return
}
go modifyObservable.NotifyObservers(uid, model.TypeResource, resource.Id)
} else {
err = schemaDecoder.Decode(resource, form)
if err != nil {
logger.Error("ResourceLogic Publish decode error:", err)
return
}
resource.Uid = uid
session := db.MasterDB.NewSession()
defer session.Close()
err = session.Begin()
if err != nil {
session.Rollback()
logger.Error("Publish Resource begin tx error:", err)
return
}
_, err = session.Insert(resource)
if err != nil {
session.Rollback()
logger.Error("Publish Resource insert resource error:", err)
return
}
resourceEx := &model.ResourceEx{
Id: resource.Id,
}
_, err = session.Insert(resourceEx)
if err != nil {
session.Rollback()
logger.Error("Publish Resource insert resource_ex error:", err)
return
}
err = session.Commit()
if err != nil {
logger.Error("Publish Resource commit error:", err)
return
}
// 发布动态
DefaultFeed.publish(resource, resourceEx)
// 给 被@用户 发系统消息
ext := map[string]interface{}{
"objid": resource.Id,
"objtype": model.TypeResource,
"uid": uid,
"msgtype": model.MsgtypePublishAtMe,
}
go DefaultMessage.SendSysMsgAtUsernames(ctx, form.Get("usernames"), ext, 0)
go publishObservable.NotifyObservers(uid, model.TypeResource, resource.Id)
}
return
}
// Total 资源总数
func (ResourceLogic) Total() int64 {
total, err := db.MasterDB.Count(new(model.Resource))
if err != nil {
logger.Error("CommentLogic Total error:%+v", err)
}
return total
}
// FindBy 获取资源列表(分页)
func (ResourceLogic) FindBy(ctx context.Context, limit int, lastIds ...int) []*model.Resource {
dbSession := db.MasterDB.OrderBy("id DESC").Limit(limit)
if len(lastIds) > 0 && lastIds[0] > 0 {
dbSession.Where("id<?", lastIds[0])
}
resourceList := make([]*model.Resource, 0)
err := dbSession.Find(&resourceList)
if err != nil {
logger.Error("ResourceLogic FindBy Error:%+v", err)
return nil
}
return resourceList
}
// FindAll 获得资源列表(完整信息),分页
func (self ResourceLogic) FindAll(ctx context.Context, paginator *Paginator, orderBy, querystring string, args ...interface{}) (resources []map[string]interface{}, total int64) {
var (
count = paginator.PerPage()
resourceInfos = make([]*model.ResourceInfo, 0)
)
session := db.MasterDB.Join("INNER", "resource_ex", "resource.id=resource_ex.id")
if querystring != "" {
session.Where(querystring, args...)
}
err := session.OrderBy(orderBy).Limit(count, paginator.Offset()).Find(&resourceInfos)
if err != nil {
logger.Error("ResourceLogic FindAll error:", err)
return
}
total = self.Count(ctx, querystring, args...)
uidSet := set.New(set.NonThreadSafe)
for _, resourceInfo := range resourceInfos {
uidSet.Add(resourceInfo.Uid)
}
usersMap := DefaultUser.FindUserInfos(ctx, set.IntSlice(uidSet))
resources = make([]map[string]interface{}, len(resourceInfos))
for i, resourceInfo := range resourceInfos {
dest := make(map[string]interface{})
structs.FillMap(resourceInfo.Resource, dest)
structs.FillMap(resourceInfo.ResourceEx, dest)
dest["user"] = usersMap[resourceInfo.Uid]
// 链接的host
if resourceInfo.Form == model.LinkForm {
urlObj, err := url.Parse(resourceInfo.Url)
if err == nil {
dest["host"] = urlObj.Host
}
} else {
dest["url"] = "/resources/" + strconv.Itoa(resourceInfo.Resource.Id)
}
resources[i] = dest
}
return
}
func (ResourceLogic) Count(ctx context.Context, querystring string, args ...interface{}) int64 {
var (
total int64
err error
)
if querystring == "" {
total, err = db.MasterDB.Count(new(model.Resource))
} else {
total, err = db.MasterDB.Where(querystring, args...).Count(new(model.Resource))
}
if err != nil {
logger.Error("ResourceLogic Count error:", err)
}
return total
}
// FindByCatid 获得某个分类的资源列表,分页
func (ResourceLogic) FindByCatid(ctx context.Context, paginator *Paginator, catid int) (resources []map[string]interface{}, total int64) {
var (
count = paginator.PerPage()
resourceInfos = make([]*model.ResourceInfo, 0)
)
err := db.MasterDB.Join("INNER", "resource_ex", "resource.id=resource_ex.id").Where("catid=?", catid).
Desc("resource.mtime").Limit(count, paginator.Offset()).Find(&resourceInfos)
if err != nil {
logger.Error("ResourceLogic FindByCatid error:", err)
return
}
total, err = db.MasterDB.Where("catid=?", catid).Count(new(model.Resource))
if err != nil {
logger.Error("ResourceLogic FindByCatid count error:", err)
return
}
uidSet := set.New(set.NonThreadSafe)
for _, resourceInfo := range resourceInfos {
uidSet.Add(resourceInfo.Uid)
}
usersMap := DefaultUser.FindUserInfos(ctx, set.IntSlice(uidSet))
resources = make([]map[string]interface{}, len(resourceInfos))
for i, resourceInfo := range resourceInfos {
dest := make(map[string]interface{})
structs.FillMap(resourceInfo.Resource, dest)
structs.FillMap(resourceInfo.ResourceEx, dest)
dest["user"] = usersMap[resourceInfo.Uid]
// 链接的host
if resourceInfo.Form == model.LinkForm {
urlObj, err := url.Parse(resourceInfo.Url)
if err == nil {
dest["host"] = urlObj.Host
}
} else {
dest["url"] = "/resources/" + strconv.Itoa(resourceInfo.Resource.Id)
}
resources[i] = dest
}
return
}
// FindByIds 获取多个资源详细信息
func (ResourceLogic) FindByIds(ids []int) []*model.Resource {
if len(ids) == 0 {
return nil
}
resources := make([]*model.Resource, 0)
err := db.MasterDB.In("id", ids).Find(&resources)
if err != nil {
logger.Error("ResourceLogic FindByIds error:%+v", err)
return nil
}
return resources
}
func (ResourceLogic) findById(id int) *model.Resource {
resource := &model.Resource{}
_, err := db.MasterDB.Id(id).Get(resource)
if err != nil {
logger.Error("ResourceLogic findById error:%+v", err)
}
return resource
}
// findByIds 获取多个资源详细信息 包内使用
func (ResourceLogic) findByIds(ids []int) map[int]*model.Resource {
if len(ids) == 0 {
return nil
}
resources := make(map[int]*model.Resource)
err := db.MasterDB.In("id", ids).Find(&resources)
if err != nil {
logger.Error("ResourceLogic FindByIds error:%+v", err)
return nil
}
return resources
}
// 获得资源详细信息
func (ResourceLogic) FindById(ctx context.Context, id int) (resourceMap map[string]interface{}, comments []map[string]interface{}) {
resourceInfo := &model.ResourceInfo{}
_, err := db.MasterDB.Join("INNER", "resource_ex", "resource.id=resource_ex.id").Where("resource.id=?", id).Get(resourceInfo)
if err != nil {
logger.Error("ResourceLogic FindById error:", err)
return
}
resource := &resourceInfo.Resource
if resource.Id == 0 {
logger.Error("ResourceLogic FindById get error:", err)
return
}
resourceMap = make(map[string]interface{})
structs.FillMap(resource, resourceMap)
structs.FillMap(resourceInfo.ResourceEx, resourceMap)
resourceMap["catname"] = GetCategoryName(resource.Catid)
// 链接的host
if resource.Form == model.LinkForm {
urlObj, err := url.Parse(resource.Url)
if err == nil {
resourceMap["host"] = urlObj.Host
}
} else {
resourceMap["url"] = "/resources/" + strconv.Itoa(resource.Id)
}
// 评论信息
comments, ownerUser, _ := DefaultComment.FindObjComments(ctx, id, model.TypeResource, resource.Uid, 0)
resourceMap["user"] = ownerUser
return
}
// 获取单个 Resource 信息(用于编辑)
func (ResourceLogic) FindResource(ctx context.Context, id int) *model.Resource {
resource := &model.Resource{}
_, err := db.MasterDB.Id(id).Get(resource)
if err != nil {
logger.Error("ResourceLogic FindResource [%d] error:%s\n", id, err)
}
return resource
}
// 获得某个用户最近的资源
func (ResourceLogic) FindRecent(ctx context.Context, uid int) []*model.Resource {
resourceList := make([]*model.Resource, 0)
err := db.MasterDB.Where("uid=?", uid).Limit(5).OrderBy("id DESC").Find(&resourceList)
if err != nil {
logger.Error("resource logic FindRecent error:%+v", err)
return nil
}
return resourceList
}
// getOwner 通过id获得资源的所有者
func (ResourceLogic) getOwner(id int) int {
resource := &model.Resource{}
_, err := db.MasterDB.Id(id).Get(resource)
if err != nil {
logger.Error("resource logic getOwner Error:%+v", err)
return 0
}
return resource.Uid
}
// 资源评论
type ResourceComment struct{}
// 更新该资源的评论信息
// cid:评论id;objid:被评论对象id;uid:评论者;cmttime:评论时间
func (self ResourceComment) UpdateComment(cid, objid, uid int, cmttime time.Time) {
session := db.MasterDB.NewSession()
defer session.Close()
session.Begin()
// 更新最后回复信息
_, err := session.Table(new(model.Resource)).Id(objid).Update(map[string]interface{}{
"lastreplyuid": uid,
"lastreplytime": cmttime,
})
if err != nil {
logger.Error("更新最后回复人信息失败:%+v", err)
session.Rollback()
return
}
// 更新评论数(TODO:暂时每次都更新表)
_, err = session.Id(objid).Incr("cmtnum", 1).Update(new(model.ResourceEx))
if err != nil {
logger.Error("更新资源评论数失败:%+v", err)
session.Rollback()
return
}
session.Commit()
}
func (self ResourceComment) String() string {
return "resource"
}
// 实现 CommentObjecter 接口
func (self ResourceComment) SetObjinfo(ids []int, commentMap map[int][]*model.Comment) {
resources := DefaultResource.FindByIds(ids)
if len(resources) == 0 {
return
}
for _, resource := range resources {
objinfo := make(map[string]interface{})
objinfo["title"] = resource.Title
objinfo["uri"] = model.PathUrlMap[model.TypeResource]
objinfo["type_name"] = model.TypeNameMap[model.TypeResource]
for _, comment := range commentMap[resource.Id] {
comment.Objinfo = objinfo
}
}
}
// 资源喜欢
type ResourceLike struct{}
// 更新该主题的喜欢数
// objid:被喜欢对象id;num: 喜欢数(负数表示取消喜欢)
func (self ResourceLike) UpdateLike(objid, num int) {
// 更新喜欢数(TODO:暂时每次都更新表)
_, err := db.MasterDB.Where("id=?", objid).Incr("likenum", num).Update(new(model.ResourceEx))
if err != nil {
logger.Error("更新资源喜欢数失败:%+v", err)
}
}
func (self ResourceLike) String() string {
return "resource"
}