How to determine if an array is saved in rails?

Question

In my seed.rb

  puts 'DEFAULT Categories'
  categories = Category.create([{name:'cat1'},{name:'cat2'}, {name: 'cat3'} ])
  if categories.save
    puts "categories saved"
  else
    puts "categories save failed"
  end

I use this to set the default categories but the problem is that I can't if categories.save to see if all category item get saved and hence the seed.rb get passed So, how can I see if an array get saved? (All of its elements) Thanks

score 0 · Answer 1 · answered Apr 01 '13 at 15:57

0

Use create! instead of create. It'll raise an an exception if it fails to save.

answered Apr 01 '13 at 15:57

Andy Waite

10,785
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1

Much (if not most) of the time, blowing up the app with an exception because of a bad save is a bad idea. Better to check if Model.save returned true or false and then render the errors if necessary. – Nick Messick Apr 01 '13 at 17:40
For something user-facing, I would agree. But this is in a seed task. – Andy Waite Apr 01 '13 at 19:29
very true. In that case, blowing up the app during the seed might be what you need to do. – Nick Messick Apr 02 '13 at 15:55

score 0 · Accepted Answer · edited Apr 01 '13 at 18:00

0

if categories.all?(&:save)
  puts "categories saved"
else
  [...]
end

edited Apr 01 '13 at 18:00

John Naegle

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answered Apr 01 '13 at 17:17

cthulhu

3,749
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score 0 · Answer 3 · answered Apr 01 '13 at 17:44

.create is creating the record. So, when you get to your if statement nothing happening because the save already happened during the create.

Change your .create to a .new, and you will be able to check if the save happened successfully:

puts 'DEFAULT Categories'
categories = Category.new([{name:'cat1'},{name:'cat2'}, {name: 'cat3'} ])  
if categories.save  
  puts "categories saved"  
else  
  puts "categories save failed"  
end

score 0 · Answer 4 · answered Apr 01 '13 at 18:16

0

if categories.all.each(&:persisted?)
  puts "categories saved"
else
  [...]
end

answered Apr 01 '13 at 18:16

Marcelo De Polli

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How to determine if an array is saved in rails?

4 Answers4