Question

Im trying to figure out how i would get attributes/propertys from an object.

locations.rb model would have attribute :city

    @location = Location.where(:id => 1)

Seems to go find inside my controller but how would I get access to the :city from that @location ?

I tried all combinations and thought it had to be:

• @location.city
• puts @location.city needs to print value of city

But instead I’m getting

undefined method `city' for #<ActiveRecord::Relation:0x007ff2d1506330>

Anyone could clarify why this not work and what I miss here? Ive searched for examples on how to do this and tried all combinations to no avail 🙁
thx

Answer 1

Arel’s where query returns a collection of models, even if there is only one result.

Location.where(:id => 1) will effectively return an array (actually an ActiveRecord::Relation) of Location objects, even though there will only be one result from this particular query in that array.

To get around this, either do

@location = Location.where(:id => 1).first
# or...
@location = Location.find(1)  # Finds by ID