Question

In my RoR application, i have a rjs file which is populating a field with id "submission_references" found in my main form.

RJS code:

  page[:submission_references].value = @references.each do |reference|
                                       reference.NAME
                                       end

The problem is that instead of displaying the retrieved database value, the following is being displayed in the 'submission_references' field:

[object Object],[object Object]

However if i put something like @references[0].NAME, the first retrieved record’s name is displayed in the field.

Please can someone shed some light on this for me.

Many many thanks for your precious help

Answer 1

Try:

page[:submission_references].value = 
  (@references.map {|reference| reference.NAME}).join(", ")

A little explanation: in your code you have assigned to the value a result of each loop, which returns original array of objects (not the evaluated inside block). That is why you get that [object Object],[object Object] string. On the other side map iterates over a collection and it evaluates block for each object in collection. Evaluated values are then returned in array instead of orginal objects. Since NAME is a string, you can use join(", ") to join each element of an array into one string concacted with “, ” string.