#235: rename Language column to Type; attachment pastes show file extension

- history/mine table column 'Language' -> 'Type' (data-sort key 'type')
- /api/public and /api/mine rows gain a 'type' field: file extension for
  attachment pastes, stored language otherwise (default 'text')
- paste page stats label 'Language' -> 'Type'; summary line uses the same
  label; get-paste JSON gains 'type'
- store list queries LEFT JOIN attachments to expose the filename
- table.js sorting accepts the 'type' key

internal/web/static/history.js

@@ -9,7 +9,7 @@ const t = PaletteTable.init({
       ? `${t.esc(it.title)}${it.is_can ? ' <span class="badge" title="Can — bundle of items">can</span>' : ''}`
       : `<a class="slug paste-name" href="/${t.esc(it.id)}">${t.esc(it.id)}</a>${it.is_can ? ' <span class="badge" title="Can — bundle of items">can</span>' : ''}`) +
     `</td>` +
-    `<td><span class="badge">${t.esc(it.language || 'text')}</span></td>` +
+    `<td><span class="badge">${t.esc(it.type || it.language || 'text')}</span></td>` +
     `<td class="dim">${t.fmtSize(it.size)}</td><td class="dim">${it.view_count}</td><td class="dim" data-ts="${it.created_at}">${t.ago(it.created_at)}</td>` +
     (it.custom_slug ? `<td><a class="slug url-link" href="/${t.esc(it.custom_slug)}">/${t.esc(it.custom_slug)}</a></td>` : `<td class="dim">none</td>`) +
     `<td class="dim"><a class="id-link" href="/${t.esc(it.id)}">${t.esc(it.id)}</a></td></tr>`,

internal/web/static/mine.js

@@ -21,7 +21,7 @@ const t = PaletteTable.init({
       ? `${t.esc(it.title)}${it.is_can ? ' <span class="badge" title="Can — bundle of items">can</span>' : ''}`
       : `<a class="slug paste-name" href="/${t.esc(it.id)}">${t.esc(it.id)}</a>${it.is_can ? ' <span class="badge" title="Can — bundle of items">can</span>' : ''}`) +
     `</td>` +
-    `<td><span class="badge">${t.esc(it.language || 'text')}</span></td>` +
+    `<td><span class="badge">${t.esc(it.type || it.language || 'text')}</span></td>` +
     `<td class="dim">${t.fmtSize(it.size)}</td><td class="dim" data-ts="${it.created_at}">${t.ago(it.created_at)}</td>` +
     (it.custom_slug ? `<td><a class="slug url-link" href="/${t.esc(it.custom_slug)}">/${t.esc(it.custom_slug)}</a></td>` : `<td class="dim">none</td>`) +
     `<td class="dim"><a class="id-link" href="/${t.esc(it.id)}">${t.esc(it.id)}</a></td>` +

internal/web/static/table.js

@@ -16,7 +16,7 @@ const PaletteTable = (() => {
   const sortVal = (it, k) => {
     let v = it[k];
     if (k === 'title' || k === 'custom_slug') v = (v == null || v === '') ? null : String(v).toLowerCase();
-    if (k === 'language') v = (v == null || v === '') ? 'text' : String(v).toLowerCase();
+    if (k === 'language' || k === 'type') v = (v == null || v === '') ? 'text' : String(v).toLowerCase();
     if (k === 'size' || k === 'view_count' || k === 'created_at') return v == null ? -1 : v;
     return v == null ? null : v;
   };

internal/web/templates/history.html

@@ -11,7 +11,7 @@
       <colgroup><col class="col-a"><col class="col-b"><col class="col-c"><col class="col-d"><col class="col-e"><col class="col-f"><col class="col-g"></colgroup>
       <thead><tr>
         <th data-sort="title" class="sortable">Paste<span class="sort-ind"></span></th>
-        <th data-sort="language" class="sortable">Language<span class="sort-ind"></span></th>
+        <th data-sort="type" class="sortable">Type<span class="sort-ind"></span></th>
         <th data-sort="size" class="sortable">Size<span class="sort-ind"></span></th>
         <th data-sort="view_count" class="sortable">Views<span class="sort-ind"></span></th>
         <th data-sort="created_at" class="sortable">Created<span class="sort-ind"></span></th>

internal/web/templates/mine.html

@@ -11,7 +11,7 @@
       <colgroup><col class="col-a"><col class="col-b"><col class="col-c"><col class="col-d2"><col class="col-e"><col class="col-f"><col class="col-del"></colgroup>
       <thead><tr>
         <th data-sort="title" class="sortable">Paste<span class="sort-ind"></span></th>
-        <th data-sort="language" class="sortable">Language<span class="sort-ind"></span></th>
+        <th data-sort="type" class="sortable">Type<span class="sort-ind"></span></th>
         <th data-sort="size" class="sortable">Size<span class="sort-ind"></span></th>
         <th data-sort="created_at" class="sortable">Created<span class="sort-ind"></span></th>
         <th data-sort="custom_slug" class="sortable">URL<span class="sort-ind"></span></th>

internal/web/templates/paste.html

@@ -20,7 +20,7 @@
       </button>
       <div class="stats-body" id="stats-body" hidden>
         <div class="stats-grid">
-          <span class="stats-k">Language</span><span class="stats-v">{{if .Language}}{{.Language}}{{else}}text{{end}}</span>
+          <span class="stats-k">Type</span><span class="stats-v">{{.TypeLabel}}</span>
           <span class="stats-k">Size</span><span class="stats-v">{{.SizeHuman}} ({{.LineCount}} lines)</span>
           <span class="stats-k">Views</span><span class="stats-v">{{.ViewCount}}</span>
           <span class="stats-k">Created</span><span class="stats-v" data-ts="{{.CreatedAtUnix}}">{{.CreatedAgo}}</span>

internal/web/web.go

@@ -231,6 +231,20 @@ func (h *Handlers) renderPageStatus(w http.ResponseWriter, name string, status i
 	}
 }
 
+// attachmentExt returns the lowercase file extension (without dot) of a
+// filename, or "" when the name has none. Used by the Type display (#235).
+func attachmentExt(filename string) string {
+	name := filename
+	if i := strings.LastIndexByte(name, '/'); i >= 0 {
+		name = name[i+1:]
+	}
+	i := strings.LastIndexByte(name, '.')
+	if i <= 0 || i == len(name)-1 {
+		return ""
+	}
+	return strings.ToLower(name[i+1:])
+}
+
 func (h *Handlers) renderPaste(w http.ResponseWriter, row *store.PasteRow, justCreated bool, deletionToken string, readsRemaining *int) {
 	lines := strings.Count(row.Content, "\n") + 1
 	gutter := ""
@@ -258,7 +272,17 @@ func (h *Handlers) renderPaste(w http.ResponseWriter, row *store.PasteRow, justC
 	if attachment != nil {
 		summarySize = int(attachment.Size)
 	}
-	summary := fmt.Sprintf("%s · %s · %d views · %s", lang, humanSize(summarySize), row.ViewCount, agoString(row.CreatedAt))
+	// #235: column renamed to "Type". Text pastes keep the detected
+	// language; attachment pastes show the file extension instead.
+	attExt := ""
+	typeLabel := lang
+	if attachment != nil {
+		if ext := attachmentExt(attachment.Filename); ext != "" {
+			attExt = ext
+			typeLabel = ext
+		}
+	}
+	summary := fmt.Sprintf("%s · %s · %d views · %s", typeLabel, humanSize(summarySize), row.ViewCount, agoString(row.CreatedAt))
 	// #221: image attachments render the image, not a text/code box. Size
 	// comes from the attachment's actual file size, not the text content.
 	attImage := false
@@ -278,7 +302,10 @@ func (h *Handlers) renderPaste(w http.ResponseWriter, row *store.PasteRow, justC
 		"Page":          "paste",
 		"ID":            row.ID,
 		"Title":         row.Title.String,
-		"Language":      row.Language.String,
+		"Language":      typeLabel,
+		"TypeLabel":     typeLabel,
+		"HasAttachment":  attachment != nil,
+		"AttachmentExt": attExt,
 		"StatsSummary":  summary,
 		"SizeHuman":     sizeHuman,
 		"HasPassword":   row.PasswordHash.Valid,