fix: fist comment of disqus error

pkg/core/eiblog/admin/admin.go

@@ -301,7 +301,7 @@ func handleAPIPostCreate(c *gin.Context) {
 	}
 	// 旧文章
 	article.ID = cid
-	artc, _ := cache.Ei.FindArticleByID(article.ID)
+	artc, _ := cache.Ei.FindArticleByID(article.ID) // cache
 	if artc != nil {
 		article.IsDraft = false
 		article.Count = artc.Count

pkg/core/eiblog/page/fe.go

@@ -3,6 +3,7 @@ package page
 
 import (
 	"bytes"
+	"context"
 	"fmt"
 	htemplate "html/template"
 	"io/ioutil"
@@ -198,7 +199,8 @@ func handleDisqusList(c *gin.Context) {
 
 	slug := c.Param("slug")
 	cursor := c.Query("cursor")
-	if artc := cache.Ei.ArticlesMap[slug]; artc != nil {
+	artc := cache.Ei.ArticlesMap[slug]
+	if artc != nil {
 		dcs.Data.Thread = artc.Thread
 	}
 	postsList, err := internal.PostsList(slug, cursor)
@@ -229,6 +231,18 @@ func handleDisqusList(c *gin.Context) {
 			IsDeleted:    v.IsDeleted,
 		}
 	}
+	// query thread & update
+	if artc != nil && artc.Thread == "" {
+		if dcs.Data.Thread != "" {
+			artc.Thread = dcs.Data.Thread
+		} else if internal.ThreadDetails(artc) == nil {
+			dcs.Data.Thread = artc.Thread
+		}
+		cache.Ei.UpdateArticle(context.Background(), artc.ID,
+			map[string]interface{}{
+				"thread": artc.Thread,
+			})
+	}
 }
 
 // handleDisqusPage 评论页

pkg/internal/disqus.go

@@ -16,11 +16,12 @@ import (
 
 // disqus api
 const (
-	apiPostsCount   = "https://disqus.com/api/3.0/threads/set.json"
-	apiPostsList    = "https://disqus.com/api/3.0/threads/listPosts.json"
-	apiPostCreate   = "https://disqus.com/api/3.0/posts/create.json"
-	apiPostApprove  = "https://disqus.com/api/3.0/posts/approve.json"
-	apiThreadCreate = "https://disqus.com/api/3.0/threads/create.json"
+	apiPostsCount    = "https://disqus.com/api/3.0/threads/set.json"
+	apiPostsList     = "https://disqus.com/api/3.0/threads/listPosts.json"
+	apiPostCreate    = "https://disqus.com/api/3.0/posts/create.json"
+	apiPostApprove   = "https://disqus.com/api/3.0/posts/approve.json"
+	apiThreadCreate  = "https://disqus.com/api/3.0/threads/create.json"
+	apiThreadDetails = "https://disqus.com/api/3.0/threads/details.json"
 )
 
 func checkDisqusConfig() error {
@@ -295,3 +296,46 @@ func ThreadCreate(article *model.Article, btitle string) error {
 	article.Thread = result.Response.ID
 	return nil
 }
+
+// threadDetailsResp thread info
+type threadDetailsResp struct {
+	Code     int
+	Response struct {
+		ID string
+	}
+}
+
+// ThreadDetails thread详细
+func ThreadDetails(article *model.Article) error {
+	if err := checkDisqusConfig(); err != nil {
+		return err
+	}
+
+	vals := url.Values{}
+	vals.Set("api_key", config.Conf.EiBlogApp.Disqus.PublicKey)
+	vals.Set("access_token", config.Conf.EiBlogApp.Disqus.AccessToken)
+	vals.Set("forum", config.Conf.EiBlogApp.Disqus.ShortName)
+	vals.Set("thread:ident", "post-"+article.Slug)
+
+	resp, err := httpPost(apiThreadDetails, vals)
+	if err != nil {
+		return err
+	}
+
+	b, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return errors.New(string(b))
+	}
+
+	result := &threadDetailsResp{}
+	err = json.Unmarshal(b, result)
+	if err != nil {
+		return err
+	}
+	article.Thread = result.Response.ID
+	return nil
+}

pkg/model/article.go

@@ -20,6 +20,7 @@ type Article struct {
 	SerieID int            `gorm:"column:serie_id;not null" bson:"serie_id"`     // 专题ID
 	Tags    pq.StringArray `gorm:"column:tags;type:text[]" bson:"tags"`          // tags
 	IsDraft bool           `gorm:"column:is_draft;not null" bson:"is_draft"`     // 是否是草稿
+	Thread  string         `gorm:"column:thread" bson:"thread"`                  // disqus thread
 
 	DeletedAt time.Time `gorm:"column:deleted_at;not null" bson:"deleted_at"`                  // 删除时间
 	UpdatedAt time.Time `gorm:"column:updated_at;default:current_timestamp" bson:"updated_at"` // 更新时间
@@ -28,7 +29,6 @@ type Article struct {
 	Header  string   `gorm:"-" bson:"-"` // header
 	Excerpt string   `gorm:"-" bson:"-"` // 预览信息
 	Desc    string   `gorm:"-" bson:"-"` // 描述
-	Thread  string   `gorm:"-" bson:"-"` // disqus thread
 	Prev    *Article `gorm:"-" bson:"-"` // 上篇文章
 	Next    *Article `gorm:"-" bson:"-"` // 下篇文章
 }