在骨干网和Rails之间共享过滤器，排序和验证逻辑

Question

I find myself regularly having to repeat sorting, filtering, and validation logic across my client side and server side. I want to have all this logic on my rails server side be replicated on backbone so I can do a get request or a client side filter and get the same stuff. Same goes for sorting and validating.

This may be a big question so if anyone has an idea of how to do any of these, I would really appreciate it.

Here's an example of what I mean. This is the backbone filter

bySearchTerm: (term) ->
  return @ if term == ''

  filtered = @filter((item) ->
  item.get("name").toLowerCase().indexOf(term.toLowerCase()) > -1 or item.get("number").toString().toLowerCase().indexOf(term.toLowerCase()) > -1
)
  new Evue.Collections.Customers(filtered)

But then I needed to replicate it on the server side so someone could do a get request and get the same filtered results.

unless params[:search_term].blank?
  @customers = @customers.where("lower(name) LIKE ? or number LIKE ?", "%#{params[:search_term].downcase}%", "%#{params[:search_term].downcase}%")
end

This gets out of hand when it comes to all the filters, sorting, and validations. Is switching over to node and using backbone for server and client side logic my answer? Not sure, open to whatever.

Answer 1

I can suggest you to look into backbone.paginator - plugin for Backbone.js, which defines a few new types of collections with enhanced filtering, paging, sorting.

I like the approach with so called {mode: "client"} (this can help to avoid replication).