Delete and rename conversations

internal/db/queries.go

@@ -286,6 +286,64 @@ func (q *Queries) SelectConversationsUserId(ctx context.Context, userId string)
 	return conversations, nil
 }
 
+const updateConversationTitle = `
+UPDATE conversations
+SET title = ?
+WHERE id = ?
+RETURNING created_at, id, title, updated_at, user_id
+`
+
+// UpdateConversationTitleParams holds arguments for
+// UpdateConversationTitle.
+type UpdateConversationTitleParams struct {
+	Id    string
+	Title string
+}
+
+// UpdateConversationTitle sets the title of one conversation and
+// returns the updated row.
+//
+// The update keeps updated_at. That timestamp is the
+// conversation's synchronization token for its message set, and a
+// title is not a message: a rename must not move the conversation
+// in the picker's ordering, which sorts by updated_at.
+//
+// A conversation that is missing returns sql.ErrNoRows.
+func (q *Queries) UpdateConversationTitle(
+	ctx context.Context,
+	arg UpdateConversationTitleParams,
+) (*Conversation, error) {
+	row := q.db.QueryRowContext(
+		ctx,
+		updateConversationTitle,
+		arg.Title,
+		arg.Id,
+	)
+
+	var (
+		c         Conversation
+		createdAt string
+		updatedAt string
+		err       error
+	)
+	if err := row.Scan(
+		&createdAt,
+		&c.Id,
+		&c.Title,
+		&updatedAt,
+		&c.UserId,
+	); err != nil {
+		return nil, fmt.Errorf("UpdateConversationTitle: %w", err)
+	}
+	if c.CreatedAt, err = time.Parse(time.RFC3339, createdAt); err != nil {
+		return nil, fmt.Errorf("UpdateConversationTitle: parse created_at: %w", err)
+	}
+	if c.UpdatedAt, err = time.Parse(time.RFC3339, updatedAt); err != nil {
+		return nil, fmt.Errorf("UpdateConversationTitle: parse updated_at: %w", err)
+	}
+	return &c, nil
+}
+
 const deleteConversationId = `
 DELETE FROM conversations
 WHERE id = ?