索引在 Rails 中没有按预期工作

Question

In my project I want to index the data.

The code of views:

- @phones.each.with_index(1) do |(phone,no_of_duplicate),index|
  .row.py-2
     .col-2 = index
    - if no_of_duplicate.count > 1      
     .col-3 = phone
     .col-3 = no_of_duplicate.count
     .col-4 .......................................
        
  

I obtain the result as If I change the code on views as:

- @phones.each.with_index(1) do |(phone,no_of_duplicate),index|
 - if no_of_duplicate.count > 1
  .row.py-2
    .col-2 = index
    .col-3 = phone
    .col-3 = no_of_duplicate.count

The got the result as:

How can I solve this?

Answer 1

您可以在分配索引和渲染之前进行filter ：

@phones.filter { |(_,no_of_duplicate)| no_of_duplicate.count > 1 }.each <...>