/// migrate((app) => { const collection = app.findCollectionByNameOrId("pbc_1125843985") // add field collection.fields.addAt(3, new Field({ "autogeneratePattern": "", "hidden": false, "id": "text1843675174", "max": 0, "min": 0, "name": "description", "pattern": "", "presentable": false, "primaryKey": false, "required": false, "system": false, "type": "text" })) // add field collection.fields.addAt(4, new Field({ "convertURLs": false, "hidden": false, "id": "editor4274335913", "maxSize": 0, "name": "content", "presentable": false, "required": false, "system": false, "type": "editor" })) // add field collection.fields.addAt(5, new Field({ "hidden": false, "id": "date2862495610", "max": "", "min": "", "name": "date", "presentable": false, "required": false, "system": false, "type": "date" })) // add field collection.fields.addAt(6, new Field({ "autogeneratePattern": "", "hidden": false, "id": "text3182418120", "max": 0, "min": 0, "name": "author", "pattern": "", "presentable": false, "primaryKey": false, "required": false, "system": false, "type": "text" })) // add field collection.fields.addAt(7, new Field({ "hidden": false, "id": "file3309110367", "maxSelect": 1, "maxSize": 0, "mimeTypes": [], "name": "image", "presentable": false, "protected": false, "required": false, "system": false, "thumbs": [], "type": "file" })) // add field collection.fields.addAt(8, new Field({ "autogeneratePattern": "", "hidden": false, "id": "text1874629670", "max": 0, "min": 0, "name": "tags", "pattern": "", "presentable": false, "primaryKey": false, "required": false, "system": false, "type": "text" })) return app.save(collection) }, (app) => { const collection = app.findCollectionByNameOrId("pbc_1125843985") // remove field collection.fields.removeById("text1843675174") // remove field collection.fields.removeById("editor4274335913") // remove field collection.fields.removeById("date2862495610") // remove field collection.fields.removeById("text3182418120") // remove field collection.fields.removeById("file3309110367") // remove field collection.fields.removeById("text1874629670") return app.save(collection) })