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47 lines
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Migration to enhance thumbnail caching with LRU eviction support"><title>MIGRATION_007 in jellytau_lib::storage::schema - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="jellytau_lib" data-themes="" data-resource-suffix="" data-rustdoc-version="1.97.1 (8bab26f4f 2026-07-14)" data-channel="1.97.1" data-search-js="search-fd9372ac.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../static.files/main-fcd733ba.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc constant"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">MIGRATION_007</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../jellytau_lib/index.html">jellytau_<wbr>lib</a><span class="version">0.10.1</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In jellytau_<wbr>lib::<wbr>storage::<wbr>schema</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../index.html">jellytau_lib</a>::<wbr><a href="../index.html">storage</a>::<wbr><a href="index.html">schema</a></div><h1>Constant <span class="constant">MIGRATION_<wbr>007</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../src/jellytau_lib/storage/schema.rs.html#454-493">Source</a> </span></div><pre class="rust item-decl"><code>const MIGRATION_007: &<a class="primitive" href="https://doc.rust-lang.org/1.97.1/std/primitive.str.html">str</a> = r#"
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-- Recreate thumbnails table without foreign key constraint on item_id
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-- and add LRU eviction support columns
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CREATE TABLE IF NOT EXISTS thumbnails_new (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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item_id TEXT NOT NULL, -- No foreign key constraint - item may not be synced yet
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image_type TEXT NOT NULL, -- Primary, Backdrop, Thumb, Logo, etc.
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image_tag TEXT NOT NULL,
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file_path TEXT NOT NULL,
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width INTEGER,
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height INTEGER,
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file_size INTEGER DEFAULT 0, -- Size in bytes for cache limit tracking
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cached_at TEXT DEFAULT CURRENT_TIMESTAMP,
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last_accessed TEXT DEFAULT CURRENT_TIMESTAMP, -- For LRU eviction
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UNIQUE(item_id, image_type, image_tag)
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);
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-- Copy existing data (if any)
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INSERT OR IGNORE INTO thumbnails_new (id, item_id, image_type, image_tag, file_path, width, height, cached_at)
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SELECT id, item_id, image_type, image_tag, file_path, width, height, cached_at FROM thumbnails;
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-- Drop old table and rename new one
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DROP TABLE IF EXISTS thumbnails;
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ALTER TABLE thumbnails_new RENAME TO thumbnails;
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-- Create indexes for efficient queries
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CREATE INDEX IF NOT EXISTS idx_thumbnails_item ON thumbnails(item_id);
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CREATE INDEX IF NOT EXISTS idx_thumbnails_lru ON thumbnails(last_accessed ASC);
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-- Cache settings table for configurable limits
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CREATE TABLE IF NOT EXISTS cache_settings (
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key TEXT PRIMARY KEY,
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value TEXT NOT NULL,
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updated_at TEXT DEFAULT CURRENT_TIMESTAMP
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);
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-- Insert default settings
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INSERT OR IGNORE INTO cache_settings (key, value) VALUES ('image_cache_limit_bytes', '1073741824'); -- 1GB default
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INSERT OR IGNORE INTO cache_settings (key, value) VALUES ('image_cache_enabled', 'true');
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"#;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Migration to enhance thumbnail caching with LRU eviction support</p>
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<ul>
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<li>Relaxes foreign key constraint on item_id (allows caching for items not yet synced)</li>
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<li>Adds last_accessed for LRU eviction</li>
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<li>Adds file_size for cache limit tracking</li>
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<li>Creates cache_settings table for configurable limits</li>
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</ul>
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</div></details></section></div></main></body></html> |