Let a post hide its date

A checkbox on the post form (posts.hide_date) overriding the theme's
"show the date on posts" for that post alone: listings, the post page and
search results leave the date out; the feed keeps its pubDate.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Sd8UPWrvyYCLj97JexNw3A

9 files changed, 35 insertions, 21 deletions

diff --git a/AGENTS.md b/AGENTS.md
index bfed5cb..1336739 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -398,7 +398,10 @@ internal/web/         server.go (host router, middleware, render helpers)
   accepts `YYYY-MM-DD[THH:MM]`), for new and existing posts alike, and it
   drives ordering, the archive, the feed and the displayed dates. Blank keeps
   the current value; a new post starts at now. Times are in the server's
-  zone, which is also the one dates are rendered in.
+  zone, which is also the one dates are rendered in. `posts.hide_date`
+  (`Post.HideDate`, the form's "Hide the date on this post") is a per-post
+  override of the theme's `ShowDates`: the listing, post page and search
+  templates check `and ShowDates (not .HideDate)`; the feed keeps its `pubDate`.
 - **Tags** (`tags` + `post_tags` tables, `store/tags.go`, `web/tags.go`):
   a tag is `name` + unique `slug` (`slug.Make(name)`), so the slug is both
   the URL (`/tag/<slug>`, `handleBlogTag`, published posts of every page,
@@ -466,7 +469,7 @@ superadmin password to `admin`. Production refuses both.
   `-- +goose Up/Down` sections; they run automatically at startup. Never
   edit an applied migration. Blog chain so far: `00001_init`, `00002_language`,
   `00003_files`, `00004_tags`, `00005_search`, `00006_format`, `00007_post_image`,
-  `00008_page_outro`, `00009_gizmo_style`, `00010_font_kind`; control: `00001_init`, `00002_upload_limit`. Both chains were re-baselined at 00001 after
+  `00008_page_outro`, `00009_gizmo_style`, `00010_font_kind`, `00011_post_hide_date`; control: `00001_init`, `00002_upload_limit`. Both chains were re-baselined at 00001 after
   the move to per-blog databases; deployments from before it have
   `goose_db_version` rows 2–7 in the control DB that must be deleted once
   (README "Upgrading from a single database") or the next control migration
diff --git a/internal/db/migrations/blog/00011_post_hide_date.sql b/internal/db/migrations/blog/00011_post_hide_date.sql
new file mode 100644
index 0000000..5af11ed
--- /dev/null
+++ b/internal/db/migrations/blog/00011_post_hide_date.sql
@@ -0,0 +1,7 @@
+-- +goose Up
+-- A per-post override of the theme's "show the date" switch, for evergreen
+-- posts on a blog that otherwise dates everything.
+ALTER TABLE posts ADD COLUMN hide_date boolean NOT NULL DEFAULT false;
+
+-- +goose Down
+ALTER TABLE posts DROP COLUMN hide_date;
diff --git a/internal/i18n/el.go b/internal/i18n/el.go
index 5603659..a8a1bde 100644
--- a/internal/i18n/el.go
+++ b/internal/i18n/el.go
@@ -71,16 +71,17 @@ var el = map[string]string{
 	"Write the first one.": "Γράψτε την πρώτη.",
 
 	// ---- posts ----
-	"New post":                      "Νέα δημοσίευση",
-	"Edit post":                     "Επεξεργασία δημοσίευσης",
-	"All pages":                     "Όλες οι σελίδες",
-	"No posts here yet.":            "Δεν υπάρχουν δημοσιεύσεις εδώ ακόμα.",
-	"optional, made from the title": "προαιρετικό, φτιάχνεται από τον τίτλο",
-	"Visible on the blog":           "Ορατή στο ιστολόγιο",
-	"Back to posts":                 "Πίσω στις δημοσιεύσεις",
-	"Post deleted.":                 "Η δημοσίευση διαγράφηκε.",
-	"the post “%s”":                 "τη δημοσίευση «%s»",
-	"Title is required (max 200 characters).":                                       "Ο τίτλος είναι υποχρεωτικός (έως 200 χαρακτήρες).",
+	"New post":                                "Νέα δημοσίευση",
+	"Edit post":                               "Επεξεργασία δημοσίευσης",
+	"All pages":                               "Όλες οι σελίδες",
+	"No posts here yet.":                      "Δεν υπάρχουν δημοσιεύσεις εδώ ακόμα.",
+	"optional, made from the title":           "προαιρετικό, φτιάχνεται από τον τίτλο",
+	"Visible on the blog":                     "Ορατή στο ιστολόγιο",
+	"Hide the date on this post":              "Απόκρυψη της ημερομηνίας σε αυτή τη δημοσίευση",
+	"Back to posts":                           "Πίσω στις δημοσιεύσεις",
+	"Post deleted.":                           "Η δημοσίευση διαγράφηκε.",
+	"the post “%s”":                           "τη δημοσίευση «%s»",
+	"Title is required (max 200 characters).": "Ο τίτλος είναι υποχρεωτικός (έως 200 χαρακτήρες).",
 	"Slug may only contain lowercase letters, digits and dashes.":                   "Η διεύθυνση επιτρέπει μόνο πεζά λατινικά γράμματα, ψηφία και παύλες.",
 	"Pick a page for this post.":                                                    "Επιλέξτε σελίδα για τη δημοσίευση.",
 	"Post is too long (200 KB max).":                                                "Η δημοσίευση είναι πολύ μεγάλη (έως 200 KB).",
diff --git a/internal/store/posts.go b/internal/store/posts.go
index 368a4de..e2b7ed5 100644
--- a/internal/store/posts.go
+++ b/internal/store/posts.go
@@ -15,6 +15,7 @@ type Post struct {
 	Format    string // FormatMarkdown | FormatHTML: how BodyMD is read
 	Image     string // featured image: a file id, or ""
 	Published bool
+	HideDate  bool // this post shows no date even when the theme shows them
 	CreatedAt time.Time
 	UpdatedAt time.Time
 	// joined
@@ -29,7 +30,7 @@ type Post struct {
 
 // The tags come along as two parallel arrays (names and slugs, both by name)
 // so every post query stays a single round trip; the alias p is the posts row.
-const postCols = `p.id, p.page_id, p.slug, p.title, p.body_md, p.body_html, p.format, p.image, p.published, p.created_at, p.updated_at, g.slug, g.title,
+const postCols = `p.id, p.page_id, p.slug, p.title, p.body_md, p.body_html, p.format, p.image, p.published, p.hide_date, p.created_at, p.updated_at, g.slug, g.title,
 	coalesce((SELECT array_agg(t.name ORDER BY t.name) FROM post_tags pt JOIN tags t ON t.id=pt.tag_id WHERE pt.post_id=p.id), '{}'),
 	coalesce((SELECT array_agg(t.slug ORDER BY t.name) FROM post_tags pt JOIN tags t ON t.id=pt.tag_id WHERE pt.post_id=p.id), '{}')`
 
@@ -37,7 +38,7 @@ func scanPost(row interface{ Scan(...any) error }) (*Post, error) {
 	var p Post
 	var names, slugs []string
 	var image *string
-	err := row.Scan(&p.ID, &p.PageID, &p.Slug, &p.Title, &p.BodyMD, &p.BodyHTML, &p.Format, &image, &p.Published, &p.CreatedAt, &p.UpdatedAt, &p.PageSlug, &p.PageTitle, &names, &slugs)
+	err := row.Scan(&p.ID, &p.PageID, &p.Slug, &p.Title, &p.BodyMD, &p.BodyHTML, &p.Format, &image, &p.Published, &p.HideDate, &p.CreatedAt, &p.UpdatedAt, &p.PageSlug, &p.PageTitle, &names, &slugs)
 	if err != nil {
 		return nil, wrap(err)
 	}
@@ -149,8 +150,8 @@ func (bs *BlogStore) CreatePost(ctx context.Context, p *Post) (*Post, error) {
 		p.CreatedAt = time.Now()
 	}
 	var id int64
-	err := bs.db.QueryRow(ctx, `INSERT INTO posts (page_id, slug, title, body_md, body_html, format, image, published, created_at) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9) RETURNING id`,
-		p.PageID, p.Slug, p.Title, p.BodyMD, p.BodyHTML, formatOrMD(p.Format), nullIfEmpty(p.Image), p.Published, p.CreatedAt).Scan(&id)
+	err := bs.db.QueryRow(ctx, `INSERT INTO posts (page_id, slug, title, body_md, body_html, format, image, published, hide_date, created_at) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10) RETURNING id`,
+		p.PageID, p.Slug, p.Title, p.BodyMD, p.BodyHTML, formatOrMD(p.Format), nullIfEmpty(p.Image), p.Published, p.HideDate, p.CreatedAt).Scan(&id)
 	if err != nil {
 		return nil, wrap(err)
 	}
@@ -158,8 +159,8 @@ func (bs *BlogStore) CreatePost(ctx context.Context, p *Post) (*Post, error) {
 }
 
 func (bs *BlogStore) UpdatePost(ctx context.Context, p *Post) error {
-	_, err := bs.db.Exec(ctx, `UPDATE posts SET page_id=$2, slug=$3, title=$4, body_md=$5, body_html=$6, format=$7, image=$8, published=$9, created_at=$10, updated_at=now() WHERE id=$1`,
-		p.ID, p.PageID, p.Slug, p.Title, p.BodyMD, p.BodyHTML, formatOrMD(p.Format), nullIfEmpty(p.Image), p.Published, p.CreatedAt)
+	_, err := bs.db.Exec(ctx, `UPDATE posts SET page_id=$2, slug=$3, title=$4, body_md=$5, body_html=$6, format=$7, image=$8, published=$9, hide_date=$10, created_at=$11, updated_at=now() WHERE id=$1`,
+		p.ID, p.PageID, p.Slug, p.Title, p.BodyMD, p.BodyHTML, formatOrMD(p.Format), nullIfEmpty(p.Image), p.Published, p.HideDate, p.CreatedAt)
 	return wrap(err)
 }
 
diff --git a/internal/web/handlers_posts.go b/internal/web/handlers_posts.go
index ac0dd90..8a54c31 100644
--- a/internal/web/handlers_posts.go
+++ b/internal/web/handlers_posts.go
@@ -113,6 +113,7 @@ func (s *Server) handlePostSave(w http.ResponseWriter, r *http.Request) {
 	p.BodyMD = strings.ReplaceAll(r.FormValue("body"), "\r\n", "\n")
 	p.Format = pick(r.FormValue("format"), store.FormatMarkdown, store.FormatHTML)
 	p.Published = r.FormValue("published") == "on"
+	p.HideDate = r.FormValue("hide_date") == "on"
 	p.PageID, _ = strconv.ParseInt(r.FormValue("page_id"), 10, 64)
 	p.Image = fileID(pickFile(p.Image, r.FormValue("image")))
 	tags, tagsOK := parseTags(strings.Split(r.FormValue("tags"), ","))
diff --git a/internal/web/templates/blog/post.html b/internal/web/templates/blog/post.html
index d16e842..33a1723 100644
--- a/internal/web/templates/blog/post.html
+++ b/internal/web/templates/blog/post.html
@@ -2,7 +2,7 @@
 {{define "content"}}
 <article class="post single">
   <h1 class="post-title">{{.Data.post.Title}}</h1>
-  <p class="post-date">{{if .Data.theme.ShowDates}}{{postdate .Data.theme.DateFormat .Data.post.CreatedAt}} &middot; {{end}}<a href="{{if .Data.page.IsHome}}/{{else}}/{{.Data.page.Slug}}{{end}}">{{.Data.page.Title}}</a></p>
+  <p class="post-date">{{if and .Data.theme.ShowDates (not .Data.post.HideDate)}}{{postdate .Data.theme.DateFormat .Data.post.CreatedAt}} &middot; {{end}}<a href="{{if .Data.page.IsHome}}/{{else}}/{{.Data.page.Slug}}{{end}}">{{.Data.page.Title}}</a></p>
   {{template "posttags" (dict "tags" .Data.post.Tags "hash" .Data.theme.TagHash)}}
   {{$img := .Data.post.Image}}{{$place := .Data.theme.PostImage}}
   {{if and $img (eq $place "top")}}<p class="post-image"><img src="/media/{{$img}}" alt=""></p>{{end}}
diff --git a/internal/web/templates/blog/search.html b/internal/web/templates/blog/search.html
index 7ee05fc..9a00c9d 100644
--- a/internal/web/templates/blog/search.html
+++ b/internal/web/templates/blog/search.html
@@ -8,7 +8,7 @@
 <p class="muted small">{{if eq .Data.total 1}}{{t "One post matches."}}{{else}}{{tf "%d posts match." .Data.total}}{{end}}</p>
 <ul class="search-results">
 {{range .Data.hits}}<li>
-  <a href="/{{.PageSlug}}/{{.Slug}}">{{.Title}}</a>{{if $.Data.theme.ShowDates}} <span class="post-date">{{postdate $.Data.theme.DateFormat .CreatedAt}}</span>{{end}}
+  <a href="/{{.PageSlug}}/{{.Slug}}">{{.Title}}</a>{{if and $.Data.theme.ShowDates (not .HideDate)}} <span class="post-date">{{postdate $.Data.theme.DateFormat .CreatedAt}}</span>{{end}}
   <p class="snippet">{{.Snippet}}</p>
 </li>
 {{end}}</ul>
diff --git a/internal/web/templates/dashboard/post_form.html b/internal/web/templates/dashboard/post_form.html
index 9bd7624..e64a331 100644
--- a/internal/web/templates/dashboard/post_form.html
+++ b/internal/web/templates/dashboard/post_form.html
@@ -41,6 +41,7 @@
     {{template "editor" (dict "name" "body" "value" .Data.post.BodyMD "format" .Data.post.Format "rows" 24 "tall" true "upload" (print "/b/" .Blog.Subdomain "/files/upload") "preview" (print "/b/" .Blog.Subdomain "/preview") "csrf" .CSRF)}}
     {{template "imagepick" (dict "name" "image" "current" .Data.post.Image "sub" .Blog.Subdomain "images" .Data.images "names" .Data.imageNames "label" (t "Featured image") "hint" (t "Optional. A thumbnail on listings, and on the post page where the Design tab puts it."))}}
     <label class="check"><input type="checkbox" name="published"{{if .Data.post.Published}} checked{{end}}> {{t "Visible on the blog"}}</label>
+    <label class="check"><input type="checkbox" name="hide_date"{{if .Data.post.HideDate}} checked{{end}}> {{t "Hide the date on this post"}}</label>
     <p class="actionrow">
       <button type="submit">{{t "Save"}}</button>
       {{if .Data.post.ID}}<a class="btn secondary" href="{{.BlogURL}}/{{.Data.post.PageSlug}}/{{.Data.post.Slug}}" target="_blank">{{t "View post"}} &#8599;</a>{{end}}
diff --git a/internal/web/templates/partials/postlist.html b/internal/web/templates/partials/postlist.html
index 91e248c..fce6291 100644
--- a/internal/web/templates/partials/postlist.html
+++ b/internal/web/templates/partials/postlist.html
@@ -6,7 +6,7 @@
 <article class="post{{if .Image}} has-thumb{{end}}">
   {{if .Image}}<a class="post-thumb" href="/{{.PageSlug}}/{{.Slug}}"><img src="/media/{{.Image}}" alt=""></a>{{end}}
   <h2 class="post-title"><a href="/{{.PageSlug}}/{{.Slug}}">{{.Title}}</a></h2>
-  {{if $.Data.theme.ShowDates}}<p class="post-date">{{postdate $.Data.theme.DateFormat .CreatedAt}}</p>{{end}}
+  {{if and $.Data.theme.ShowDates (not .HideDate)}}<p class="post-date">{{postdate $.Data.theme.DateFormat .CreatedAt}}</p>{{end}}
   {{template "posttags" (dict "tags" .Tags "hash" $.Data.theme.TagHash)}}
   <div class="post-body">{{html .Excerpt}}</div>
   {{if .HasMore}}<p class="read-more"><a href="/{{.PageSlug}}/{{.Slug}}">{{t "Read more"}} &rarr;</a></p>{{end}}