In a Ruby on Rails model class:
class DeliveryItem < ActiveRecord::Base
attr_accessible :state
end
item=DeliveryItem.new
item.instance_variable_set "@name","apple"
NoMethodError: undefined method 'name' for #
How do I make this work?
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use item.instance_variable_get "@name"Charlot– Charlot2013-03-13 06:37:37 +00:00Commented Mar 13, 2013 at 6:37
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attr_accessible :state, :nameSachin R– Sachin R2013-03-13 06:54:55 +00:00Commented Mar 13, 2013 at 6:54
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2 Answers
You can try this:
item.instance_variable_set(:@attributes, {'name' => 'apple'})
Comments
The error means you don't have a name attribute for DeliveryItem. This means that there's no setter method for name or you don't have a name column. So to solve this issue, you have to either
- add a
namecolumn or - create a setter method for
nameor - use
attr_accessororattr_writerto do the work for you
add the following to your model
class DeliveryItem < ActiveRecord::Base
attr_accessor :name
end
then you should be able to use your code
item = DeliveryItem.new
item.instance_variable_set "@name","apple"
# or just use item.name=
item.name = 'apple'
1 Comment
Charlot
thank u for the help, the attributes i want to set are not fixed:)