Rails: How to loop through parameters of post request

Question

Given these paramters:

{
    "items"=>{"id"=>"", "id"=>"", "id"=>""}
}

How would I go about assigning the content for each item in rails?

This is what I have tried:

    params[:items].each do |i|
        item = Item.find(i)
            @content = params[:s]
        end
    end

It obviously cannot find any value for params[:s], so @content is equals nil.

I have absolutely no idea on how to get this value. I appreciate each answer. Thank you!

Answer 1

Take a look at the documentation for the Hash class, specifically the each method. There are two parameters in the block, a key and a value. So adding that second parameter will allow you to get that value:

params[:items].each do |id, value|
  # You can access the value for each ID 
  # with the variable 'value' while in the block
end

I'm not sure why you're setting @content repeatedly. That's the same variable throughout the whole script; are you trying to set a content attribute on each item? If so, you just need to say item.content = value (and probably save item at some point, if you want it to persist in the database). And you wouldn't need to put that within a block for Item.find; just put it on the next line(s) within the outer block. (If you did need a block for Item.find, you appear to be missing a do on that line.)