Add vault content - WORK folder, Tasks, Projects, Summaries, Templates

Summaries/Obsidian Dataview.md

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+---
+title: Obsidian Dataview
+category: Summary
+type: Tool/Plugin
+source: https://github.com/blacksmithgu/obsidian-dataview
+date: 2026-02-23
+tags: [obsidian, dataview, plugin, query, database]
+---
+
+# Obsidian Dataview
+
+**URL:** https://github.com/blacksmithgu/obsidian-dataview  
+**Description:** A data index and query language over Markdown files for Obsidian  
+**Date Summarized:** 2026-02-24
+
+---
+
+## tl;dr
+
+Treat your Obsidian Vault as a **database** that you can query. Query, filter, sort, and extract data from Markdown pages using YAML frontmatter and inline fields.
+
+---
+
+## What It Does
+
+Dataview generates data from your vault by pulling information from:
+
+1. **Markdown Frontmatter** — YAML at the top of documents:
+```yaml
+---
+alias: "document"
+last-reviewed: 2021-08-17
+rating: 8
+status: active
+---
+```
+
+2. **Inline Fields** — Key:: Value syntax in documents:
+```markdown
+Basic Field:: Value
+**Bold Field**:: Nice!
+You can also write [field:: inline fields]
+(field2:: hidden field)  
+```
+
+---
+
+## Query Modes
+
+### 1. Dataview Query Language (DQL)
+Pipeline-based, SQL-like expressions:
+```dataview
+TABLE file.name AS "File", rating AS "Rating" 
+FROM #book
+SORT rating DESC
+```
+
+### 2. Inline Expressions
+Embed directly in markdown:
+`= this.file.name` → shows filename
+
+### 3. DataviewJS
+JavaScript for complex logic:
+```dataviewjs
+for (let group of dv.pages("#book")
+  .where(p => p["time-read"].year == 2021)
+  .groupBy(p => p.genre)) {
+    dv.header(3, group.key);
+    dv.table(["Name", "Rating"], group.rows
+      .sort(k => k.rating, 'desc')
+      .map(k => [k.file.link, k.rating]))
+}
+```
+
+---
+
+## Example Use Cases
+
+**Table of games with metadata:**
+```dataview
+TABLE time-played, length, rating
+FROM "games"
+SORT rating DESC
+```
+
+**List by tags:**
+```dataview
+LIST FROM #game/moba or #game/crpg
+```
+
+**Tasks from active projects:**
+```dataview
+TASK FROM #projects/active
+```
+
+**Books read in 2021, grouped by genre:**
+```dataviewjs
+for (let group of dv.pages("#book")
+  .where(p => p["time-read"].year == 2021)
+  .groupBy(p => p.genre)) {
+    dv.header(3, group.key);
+    dv.table(["Name", "Time Read", "Rating"],
+      group.rows.sort(k => k.rating, 'desc')
+      .map(k => [k.file.link, k["time-read"], k.rating]))
+}
+```
+
+---
+
+## Key Features
+
+- ✅ Query any Markdown files in your vault
+- ✅ Filter by tags, folders, metadata
+- ✅ Sort by any field
+- ✅ Group results
+- ✅ Render as tables, lists, or tasks
+- ✅ JavaScript API for complex logic
+- ✅ Inline fields for hidden metadata
+- ✅ Automatic data index updates
+
+---
+
+## Potential Uses for Corey's Vault
+
+1. **Home Assistant Automations Table** — Query all automations by status
+2. **Projects Dashboard** — Active vs completed projects
+3. **Daily Notes Query** — Recent entries, completed tasks
+4. **Research Summaries** — All `/summarize` outputs by date
+5. **Cron Jobs Status** — Active vs disabled jobs
+
+---
+
+## Installation
+
+Available in Obsidian Community Plugins:
+1. Settings → Community Plugins → Browse
+2. Search "Dataview"
+3. Install & Enable
+
+---
+
+**Full Docs:** https://blacksmithgu.github.io/obsidian-dataview/
+
+---
+
+*Source: https://github.com/blacksmithgu/obsidian-dataview*