getPost.js

// before: store/selectors/getPost.js

const getPost = ormCreateSelector(
  state => state,
  state => orm.session(state.orm),
  (state, props) => props.id,
  (state, session, id) => {
    try {
      const post = session.Post.get({id})
      return {
        ...post.ref,
        creator: post.creator,
        commenters: post.commenters.toModelArray(),
        communities: post.communities.toModelArray()
      }
    } catch (e) {
      return null
    }
  }
)

// after: store/selectors/getPost.js

const getPost = ormCreateSelector(
  state => state,
  state => orm.session(state.orm),
  (state, props) => props.id,
  (state, session, id) => session.Post.safeGet({id})
)

// after: components/MyComponent/MyComponent.store.js

const getPostTheWayILikeIt = createSelector(
  getPost,
  post => {
    if (!post) return null
    return {
      ...post.ref,
      creator: post.creator,
      commenters: post.commenters.toModelArray(),
      communities: post.communities.toModelArray()
    }
  }
)

// alternative to above: components/MyComponent/MyComponent.connector.js

function mapStateToProps (state, props) {
  const post = getPost(state, props)
  const truncatedPost = {
    ...post.ref,
    creator: post.creator,
    commenters: post.commenters.toModelArray(),
    communities: post.communities.toModelArray()
  }
  
  return {post: truncatedPost}
}