Collating entries in my Obsidian journal for week notes

Following up on my Mastodon post about wanting to start doing week notes, inspired by Ankur and Abhinav, here’s the quick rundown of how I supplemented my existing Obsidian journal to facilitate the new endeavor.

I currently use obsidian-periodic-notes to manage my daily notes and have mostly left the weekly/monthly option untouched, until now.

To actually collect the necessary journal entries, I relied on Dataview which I’ve used previously to get good at Marvel Snap. I wanted to minimize the changes I needed to make in my day-to-day workflow so I started with the restriction that at most I would be willing to tack on #weekly at the end of a journal entry that was noteworthy.

Dataview was able to beautifully navigate this limitation and with a little bit of JavaScript I now have a template that I can plug into Periodic Notes and get a roundup of the whole week in one click. Here’s how it looks with just today’s entries highlighted:

An Obsidian page with the title 2025-W50 and listing two journal entries from today: Me writing about my Droidcon India 2025 experience and a mention of me finishing my second run of the game Dispatch.

The relevant DataViewJS code is this:

(() => {
  const TAG = "#weekly";

  const m = dv.current().file.name.match(/^(\d{4})-W(\d{2})$/);
  if (!m) {
    dv.paragraph("Weekly note filename must be like `2025-W50.md`.");
    return;
  }

  function isoWeekStartISO(year, week) {
    // Compute ISO week start (Monday) in UTC, then return YYYY-MM-DD
    const simple = new Date(Date.UTC(year, 0, 1 + (week - 1) * 7));
    const dow = simple.getUTCDay(); // 0..6, Sun..Sat

    const start = new Date(simple);
    if (dow <= 4) start.setUTCDate(simple.getUTCDate() - dow + 1);
    else start.setUTCDate(simple.getUTCDate() + (8 - dow));

    // YYYY-MM-DD
    return start.toISOString().slice(0, 10);
  }

  const year = Number(m[1]);
  const week = Number(m[2]);

  const start = dv.date(isoWeekStartISO(year, week));
  const end = start.plus({ days: 7 });

  const pages = dv.pages('"Daily"')
    .where(p => p.file.day && p.file.day >= start && p.file.day < end)
    .sort(p => p.file.day, "asc");

  let any = false;

  for (const p of pages) {
    const bullets = (p.file.lists ?? []).filter(li => (li.text ?? "").includes(TAG));
    if (!bullets.length) continue;

    any = true;

    // [[YYYY-MM-DD]]
    dv.paragraph(p.file.link.toString());

    // - Line 1
    // - Line 2
    dv.list(
      bullets
        .map(li => li.text ?? "")
        .map(t => t.replace(TAG, "").replace(/\s+/g, " ").trim())
        .filter(Boolean)
    );

    dv.paragraph("");
  }

  if (!any) dv.paragraph(`No ${TAG} bullets found for ${m[1]}-W${m[2]}.`);
})();

The code is relatively simple: It finds the week number from the current file name, gathers the range of dates for that week, inspects each file for lines that contain #weekly, and then neatly lays them out grouped by date.

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