added display of attachment presence to post

conference.go

@@ -438,6 +438,17 @@ func templateOverrideLink(args jet.Arguments) reflect.Value {
 	return reflect.ValueOf(rc)
 }
 
+// templateAttachmentInfo gets the attachment info for a post.
+func templateAttachmentInfo(args jet.Arguments) reflect.Value {
+	post := args.Get(0).Convert(reflect.TypeFor[*database.PostHeader]()).Interface().(*database.PostHeader)
+	ctxt := args.Get(1).Convert(reflect.TypeFor[ui.AmContext]()).Interface().(ui.AmContext)
+	rc, _ := post.AttachmentInfo(ctxt.Ctx())
+	if rc == nil {
+		rc = &database.PostAttachInfo{}
+	}
+	return reflect.ValueOf(rc)
+}
+
 /* ReadPosts displays posts in a topic.
  * Parameters:
  *     ctxt - The AmContext for the request.
@@ -619,6 +630,7 @@ func ReadPosts(ctxt ui.AmContext) (string, any, error) {
 	ctxt.VarMap().SetFunc("post_getOverrideLink", templateOverrideLink)
 	ctxt.VarMap().SetFunc("post_getText", templatePostText)
 	ctxt.VarMap().SetFunc("post_getUserName", templateExtractUserName)
+	ctxt.VarMap().SetFunc("post_getAttachmentInfo", templateAttachmentInfo)
 	ctxt.VarMap().Set("post_stem", fmt.Sprintf("%s/r/%d", urlStem, topic.Number))
 	ctxt.VarMap().Set("post_max", topic.TopMessage)
 	ctxt.VarMap().Set("posts", posts)
@@ -741,6 +753,7 @@ func PostInTopic(ctxt ui.AmContext) (string, any, error) {
 		ctxt.VarMap().SetFunc("post_getOverrideLink", templateOverrideLink)
 		ctxt.VarMap().SetFunc("post_getText", templatePostText)
 		ctxt.VarMap().SetFunc("post_getUserName", templateExtractUserName)
+		ctxt.VarMap().SetFunc("post_getAttachmentInfo", templateAttachmentInfo)
 		ctxt.VarMap().Set("post_stem", fmt.Sprintf("/comm/%s/conf/%s/r/%d", comm.Alias, ctxt.GetScratch("currentAlias"), topic.Number))
 		ctxt.VarMap().Set("post_max", topic.TopMessage)
 		ctxt.VarMap().Set("posts", posts)

database/post.go

@@ -36,6 +36,13 @@ type PostData struct {
 	Data   *string `db:"data"`   // actual post data
 }
 
+// PostAttachInfo contains information about a file attachment to a post.
+type PostAttachInfo struct {
+	Filename string // name of attached file
+	MIMEType string // MIME type of attached file
+	Length   int32  // length in bytes of attached file
+}
+
 // ErrNoPostData is returned if post data is missing.
 var ErrNoPostData = errors.New("no post data")
 
@@ -58,6 +65,26 @@ func (p *PostHeader) IsPublished(ctx context.Context) (bool, error) {
 	return ct > 0, err
 }
 
+/* AttachmentInfo returns attachment information for a post.
+ * Parameters:
+ *     ctx - Standard Go context value.
+ * Returns:
+ *     Pointer to structure with post attachment info.
+ *     Standard Go error status.
+ */
+func (p *PostHeader) AttachmentInfo(ctx context.Context) (*PostAttachInfo, error) {
+	rs, err := amdb.QueryContext(ctx, "SELECT filename, mimetype, datalen FROM postattach WHERE postid = ?", p.PostId)
+	if err != nil {
+		return nil, err
+	}
+	if !rs.Next() {
+		return nil, nil
+	}
+	var rc PostAttachInfo
+	err = rs.Scan(&(rc.Filename), &(rc.MIMEType), &(rc.Length))
+	return &rc, err
+}
+
 /* SetAttachment sets the attachment data for a post.
  * Parameters:
  *     ctx - Standard Go context value.

ui/views/posts.jet

@@ -106,12 +106,14 @@
                 {{ post_text := "" }}
                 {{ post_overrideLine := "" }}
                 {{ post_overrideLink := "" }}
+                {{ post_attach := nil }}
                 {{ range i, p := posts }}
                     {{ post_cur = p }}
                     {{ post_userName = post_getUserName(p, .) }}
                     {{ post_text = post_getText(p, .) }}
                     {{ post_overrideLine = post_getOverrideLine(p, .) }}
                     {{ post_overrideLink = post_getOverrideLink(p, post_topicPermalink) }}
+                    {{ post_attach = post_getAttachmentInfo(p, .) }}
                     {{ include "singlepost.jet" }}
                     {{ if advancedControls }}
                         <div class="flex flex-col gap-2">

ui/views/singlepost.jet

@@ -20,6 +20,13 @@
         <span class="text-gray-600 text-sm ml-2">(<em>
             <a href="/user/{{ post_userName }}" target="_blank" class="text-blue-700 hover:text-blue-900">{{ post_userName }}</a>, 
             {{ DisplayDateTime(post_cur.Posted, .) }}</em>)
+            {{ if post_attach.Filename != "" }}
+                <a href="/TODO" title="(Attachment {{ post_attach.Filename }} - {{ post_attach.Length }} bytes)"
+                    {{ if hasPrefix(post_attach.MIMEType, "text/") || hasPrefix(post_attach.MIMEType, "image/" )}}
+                        target="_blank"
+                    {{ end }}
+                   class="text-lg">📎</a>
+            {{ end }}
         </span>
     </div>
     {{ if post_overrideLine != "" }}

ui/views/slippage.jet

@@ -24,6 +24,7 @@
             {{ post_text := "" }}
             {{ post_overrideLine := "" }}
             {{ post_overrideLink := "" }}
+            {{ post_attach := nil }}
             {{ range i, p := posts }}
                 {{ m = map("post_cur", p, "post_userName", post_getUserName(p, .), "post_text", post_getText(p, .),
                            "post_overrideLine", post_getOverrideLine(p, .), "post_overrideLink", post_getOverrideLink(p, post_topicPermalink)) }}
@@ -32,6 +33,7 @@
                 {{ post_text = post_getText(p, .) }}
                 {{ post_overrideLine = post_getOverrideLine(p, .) }}
                 {{ post_overrideLink = post_getOverrideLink(p, post_topicPermalink) }}
+                {{ post_attach = post_getAttachmentInfo(p, .) }}
                 {{ include "singlepost.jet" }}
             {{ end }}
         </div>