Calculating tag photo dimensions in seed file, improved tag photo lazy loading.

seeds/04_media.js

@@ -1,4 +1,7 @@
-// const nanoid = require('nanoid/non-secure');
+const path = require('path');
+const Promise = require('bluebird');
+const sharp = require('sharp');
+
 const upsert = require('../src/utils/upsert');
 
 const sfw = Object.entries({
@@ -951,13 +954,27 @@ exports.seed = knex => Promise.resolve()
 			[entity.slug]: entity,
 		}), {});
 
-		const { inserted, updated } = await upsert('media', tagMedia.map(media => ({
+		const tagMediaWithDimensions = await Promise.map(tagMedia, async (media) => {
+			const { width, height } = await sharp(path.join('public/img', media.path)).metadata(); // size not available from filepath
+
+			return {
+				...media,
+				width,
+				height,
+			};
+		}, {
+			concurrency: 20,
+		});
+
+		const { inserted, updated } = await upsert('media', tagMediaWithDimensions.map(media => ({
 			id: media.id,
 			path: media.path,
 			thumbnail: media.thumbnail,
 			lazy: media.lazy,
 			mime: media.mime,
 			index: media.index,
+			width: media.width,
+			height: media.height,
 			comment: media.comment,
 			entity_id: entitiesBySlug[media.entitySlug]?.id,
 		})), 'path', knex);