import { STORE_HYDRATE } from '../actions/store'; import { Map as ImmutableMap } from 'immutable'; const initialState = ImmutableMap({ accept_content_types: [], }); export default function meta(state = initialState, action) { switch(action.type) { case STORE_HYDRATE: return state.merge(action.state.get('media_attachments')); default: return state; } }