ref: Collapse image data into one column

server/db/migrations/20220523131229_add_image_to_attachment_table.js

@@ -0,0 +1,73 @@
+const path = require('path');
+const sharp = require('sharp');
+const _ = require('lodash');
+
+const getConfig = require('../../get-config');
+
+module.exports.up = async (knex) => {
+  await knex.schema.table('attachment', (table) => {
+    /* Columns */
+
+    table.jsonb('image');
+  });
+
+  const config = await getConfig();
+  const attachments = await knex('attachment');
+
+  // eslint-disable-next-line no-restricted-syntax
+  for (attachment of attachments) {
+    if (attachment.is_image) {
+      const image = sharp(
+        path.join(config.custom.attachmentsPath, attachment.dirname, attachment.filename),
+      );
+
+      let metadata;
+      try {
+        metadata = await image.metadata(); // eslint-disable-line no-await-in-loop
+      } catch (error) {
+        continue; // eslint-disable-line no-continue
+      }
+
+      if (!['svg', 'pdf'].includes(metadata.format)) {
+        // eslint-disable-next-line no-await-in-loop
+        await knex('attachment')
+          .update({
+            image: _.pick(metadata, ['width', 'height']),
+          })
+          .where('id', attachment.id);
+      }
+    }
+  }
+
+  return knex.schema.table('attachment', (table) => {
+    table.dropColumn('is_image');
+  });
+};
+
+module.exports.down = async (knex) => {
+  await knex.schema.table('attachment', (table) => {
+    /* Columns */
+
+    table.boolean('is_image');
+  });
+
+  const attachments = await knex('attachment');
+
+  // eslint-disable-next-line no-restricted-syntax
+  for (attachment of attachments) {
+    // eslint-disable-next-line no-await-in-loop
+    await knex('attachment')
+      .update({
+        is_image: !!attachment.image,
+      })
+      .where('id', attachment.id);
+  }
+
+  await knex.schema.table('attachment', (table) => {
+    table.dropColumn('image');
+  });
+
+  return knex.schema.alterTable('attachment', (table) => {
+    table.boolean('is_image').notNullable().alter();
+  });
+};