🪑 Table of notes with a particular heading and the heading's content 📌

Output a table of notes with a particular heading and the heading's content 📌.md

Error in user YAML: Alias parsing is not enabled.

---
title: &title "Output a table of notes with a particular heading and the heading's content"
UUID: &UUID 7fa1055a-f5bf-4d85-b3d6-32e4a3c2105b
alias:
  - *title
  - *UUID
created: 2023-04-26T04:31:24
---

%%

[!metadata]- Dataview fields

• [description:: A dataviewjs snippet to search a vault for notes with a given heading in a given path and output a link to those notes in one column with the heading's content in the other. Optionally, output subheadings too which is more resource intensive.]
• [directions:: Copy the [[#Code|codeblock]] to your vault and modify the value of findHeading to the heading your want to find (without hash # characters), as well as the value of rootFolderPath to the folder you would like to search (leave blank for the root of your vault).]
• [type of:: [[Dataview JS snippets 📑|Dataview JS snippet]]]

%%

%% 🪦 Title header %%

$=dv.header(1, jsinit.dvTitleType(dv))

[!abstract] $=jsinit.dvDescription(dv)

[!metadata] $=await jsinit.dvView(dv, 'table', {preset: 'meta', files: true})

Code 🔗

~~~dataviewjs
const findHeading = 'Notes',
  rootFolderPath = 'path/to/folder',
  filesWithHeading = app.metadataCache
    .getCachedFiles()
    .filter((p) => RegExp(`^${rootFolderPath}`).exec(p))
    .filter((p) => app.metadataCache.getCache(p).headings?.map((h) => h.heading === findHeading)),
  getPageContentByHeading = async (path, heading, subheadings = false) => {
    const tfile = app.vault.getAbstractFileByPath(path),
      { headings } = app.metadataCache.getFileCache(tfile),
      foundHeading = headings.find((e) => e.heading === heading);

    let content, siblingHeadings, nextHeading, startPos, endPos, headingContent;
    if (foundHeading) {
      content = await app.vault.cachedRead(tfile);
      siblingHeadings = headings.filter((e) => e.level === foundHeading?.level);
      nextHeading = subheadings
        ? siblingHeadings[siblingHeadings.indexOf(foundHeading) + 1]
        : headings[headings.indexOf(foundHeading) + 1];
      startPos = foundHeading.position.end.offset + 1;
      endPos = nextHeading?.position.start.offset - 1;
      headingContent = endPos ? content.substring(startPos, endPos).trim() : content.substring(startPos).trim();

      const matchImageEmbeds = /!\[\[(?<file>.*?\.(?:png|jpg))(?:\|(?<caption>.*?))?\]\]|\(?<caption>.*?)\)\[(?<file>.*?)\]/g;
      let foundImageEmbed;
      while ((foundImageEmbed = matchImageEmbeds.exec(headingContent)) !== null) {
        headingContent = headingContent.replace(
          foundImageEmbed[0],
          `<img src="${app.vault.getResourcePath(
            app.vault.getFiles().find((f) => f.name === foundImageEmbed.groups.file) ?? {
              path: foundImageEmbed.groups.file,
            }
          )}">${foundImageEmbed.groups.caption ?? ''}</img>`
        );
      }
    }

    return headingContent;
  },
  tableData = (
    await Promise.all(
      filesWithHeading.map(async (p) => [
        dv.page(p).file.link,
        await getPageContentByHeading(p, findHeading /* , true */),
      ])
    )
  ).filter((v) => v[1])
  .sort((a, b) => b[0].path.localeCompare(a[0].path, 'en', { sensitivity: 'base' }));

await dv.table(['Path', findHeading], dv.array(tableData));
dv.container.querySelectorAll('tr > td ~ td').forEach((e) => (e.style.whiteSpace = 'normal'));

~~~

Example %% fold %%

const findHeading = '📥 Inbox',
  rootFolderPath = '2 - Areas 🗺️/Periodic Notes 📌',
  filesWithHeading = app.metadataCache
    .getCachedFiles()
    .filter((p) => RegExp(`^${rootFolderPath}`).exec(p))
    .filter((p) => app.metadataCache.getCache(p).headings?.map((h) => h.heading === findHeading)),
  getPageContentByHeading = async (path, heading, subheadings = false) => {
    const tfile = app.vault.getAbstractFileByPath(path),
      { headings } = app.metadataCache.getFileCache(tfile),
      foundHeading = headings.find((e) => e.heading === heading);

    let content, siblingHeadings, nextHeading, startPos, endPos, headingContent;
    if (foundHeading) {
      content = await app.vault.cachedRead(tfile);
      siblingHeadings = headings.filter((e) => e.level === foundHeading?.level);
      nextHeading = subheadings
        ? siblingHeadings[siblingHeadings.indexOf(foundHeading) + 1]
        : headings[headings.indexOf(foundHeading) + 1];
      startPos = foundHeading.position.end.offset + 1;
      endPos = nextHeading?.position.start.offset - 1;
      headingContent = endPos ? content.substring(startPos, endPos).trim() : content.substring(startPos).trim();

      const matchImageEmbeds = /!\[\[(?<file>.*?\.(?:png|jpg))(?:\|(?<caption>.*?))?\]\]/g;
      let foundImageEmbed;
      while ((foundImageEmbed = matchImageEmbeds.exec(headingContent)) !== null) {
        headingContent = headingContent.replace(
          foundImageEmbed[0],
          `<img src="${app.vault.getResourcePath(
            app.vault.getFiles().find((f) => f.name === foundImageEmbed.groups.file) ?? {
              path: foundImageEmbed.groups.file,
            }
          )}">${foundImageEmbed.groups.caption ?? ''}</img>`
        );
      }
    }

    return headingContent;
  },
  tableData = (
    await Promise.all(
      filesWithHeading.map(async (p) => [
        dv.page(p).file.link,
        await getPageContentByHeading(p, findHeading, true),
      ])
    )
  ).filter((v) => v[1])
  .sort((a, b) => b[0].path.localeCompare(a[0].path, 'en', { sensitivity: 'base' }));

await dv.table(['Path', findHeading], dv.array(tableData).limit(60));
dv.container.querySelectorAll('tr > td ~ td').forEach((e) => (e.style.whiteSpace = 'normal'));

%% 🍞 Breadcrumbs %%

await jsinit.dvView(dv, 'breadcrumbs', {direction: 'up'})
await jsinit.dvView(dv, 'breadcrumbs', {direction: 'down'})

%% 📂 Sub-files %%

await jsinit.dvView(dv, 'table', { files: true })

📥 Inbox

☑️ New Tasks

• #✔️/fix [[#^41d4dd|embed bugs]] %% fold %%
  • [<] [timestamp:: 2023-04-26T07:05:46]

🪵 Logs

⌚ Changes

• #🪵/modified the snippet to embed images properly %% fold %%
  • [<] [timestamp:: 2023-04-26T06:17:04]

🗒️ Notes

🐛 Bugs

• [i] #🐛 doesn't output all embeds correctly %% fold %% ^41d4dd
  • only matches [[wikilink]] not [markdown links](markdownn links)
  • only matches by filename, which will fail if a link uses a path
  • [<] [timestamp:: 2023-04-26T04:33:23]

Switched from app.vault.read(...) to app.vault.cachedRead(...) to improve performance.

Thanks @mariomui! https://discord.com/channels/686053708261228577/1014259487445622855/1136683511244390544