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Optimise thumbnail database upgrade

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This commit is contained in:
Mitchell McCaffrey 2021-02-25 08:55:43 +11:00
parent 9dbd7e35a6
commit 1e0489d452
1 changed files with 16 additions and 3 deletions
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19
src/database.js
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@ -9,7 +9,12 @@ import { createThumbnail } from "./helpers/image";
// Helper to create a thumbnail for a file in a db
async function createDataThumbnail(data) {
const url = URL.createObjectURL(new Blob([data.file]));
let url;
if (data?.resolutions?.low?.file) {
url = URL.createObjectURL(new Blob([data.resolutions.low.file]));
} else {
url = URL.createObjectURL(new Blob([data.file]));
}
return await Dexie.waitFor(
new Promise((resolve) => {
let image = new Image();
@ -363,11 +368,15 @@ const versions = {
// 1.8.0 - Add thumbnail to maps and add measurement to grid
19(v) {
v.stores({}).upgrade(async (tx) => {
const userId = (await Dexie.waitFor(tx.table("user").get("userId")))
.value;
const maps = await Dexie.waitFor(tx.table("maps").toArray());
const thumbnails = {};
for (let map of maps) {
try {
thumbnails[map.id] = await createDataThumbnail(map);
if (map.owner === userId) {
thumbnails[map.id] = await createDataThumbnail(map);
}
} catch {}
}
return tx
@ -382,11 +391,15 @@ const versions = {
// 1.8.0 - Add thumbnail to tokens
20(v) {
v.stores({}).upgrade(async (tx) => {
const userId = (await Dexie.waitFor(tx.table("user").get("userId")))
.value;
const tokens = await Dexie.waitFor(tx.table("tokens").toArray());
const thumbnails = {};
for (let token of tokens) {
try {
thumbnails[token.id] = await createDataThumbnail(token);
if (token.owner === userId) {
thumbnails[token.id] = await createDataThumbnail(token);
}
} catch {}
}
return tx