Ruby TypeError: no implicit conversion of String into Integer

Question

I am trying to find if there is mango/cc: in my data and if its there update its value to new_version, if its not there add mango/cc:#{new_version}

My data

{"product"=>"fruit", "id"=>"alpha", "details"=>{"SS"=>["mango/aa:50", "mango/cc:287_457_51.0.0"]}}

Code:

  new_version = "287_457_53.0.0"
  var1 = data['details']['SS'].select{|x| x.start_with?('mango/cc:')}
  if var1.empty?
    data['details'] << "mango/cc:#{new_version}"
  else
    data['details'].delete(var1)
    data['details'] << "mango/cc:#{new_version}"
    puts data

Current Output:

`[]': no implicit conversion of String into Integer (TypeError)

Expected Output:

{"product"=>"fruit", "id"=>"alpha", "details"=>{"SS"=>["mango/aa:50", "mango/cc:287_457_53.0.0"]}}

I don't get the same error with this code. Are you sure you posted corrrectly? — lacostenycoder
– lacostenycoder, Commented Mar 6, 2020 at 16:05

MVP · Accepted Answer · 2020-03-06 17:08:07Z

So it should work:

data={"product"=>"fruit", "id"=>"alpha", "details"=>{"SS"=>["mango/aa:50", "mango/cc:287_457_51.0.0"]}}
puts "Before: #{data}"
new_version = "287_457_53.0.0"
var1 = data['details']['SS'].select{|x| x.start_with?('mango/cc:')}
if var1.empty?
  data['details']['SS'] << "mango/cc:#{new_version}"
else
  data['details']['SS'].delete(var1.first)
  data['details']['SS'] << "mango/cc:#{new_version}"
end
puts "After: #{data}"

#=> Before: {"product"=>"fruit", "id"=>"alpha", "details"=>{"SS"=>["mango/aa:50", "mango/cc:287_457_51.0.0"]}}
#=> After: {"product"=>"fruit", "id"=>"alpha", "details"=>{"SS"=>["mango/aa:50", "mango/cc:287_457_53.0.0"]}}

There are several errors:

 var1 is an array
 data ['details'] is hash table
 "mango / cc: # {new_version}" is a string

You should add ['SS'] to delete the key (string) "mango / cc: # {new_version}" remembering that var1 is an array and not a string

racar · Accepted Answer · 2020-03-06 16:39:06Z

0

I think that the error is because var1 is an array, so your code must be something like:

new_version = "287_457_53.0.0" 
var1 = data['details']['SS'].select{|x| x.start_with?('mango/cc:')}
if var1.empty?
  data['details'] << "mango/cc:#{new_version}"
else
  data['details'].delete(var1.first)
  data['details'] << "mango/cc:#{new_version}"
  puts data

Just changing the param in data['details'].delete method

answered Mar 6, 2020 at 16:39

racar

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