How Do You Insert An Additional Key/Value To An Array of Objects in Rails?

Question

Due to having to do some fancy searching via cookie storage, I've got an array of (Model) objects.

@ads contains

[{:id => 9283
:name => "Name Here"
:price => 2000
:phone => "999-999-9999"
}]

etc, for multiple objects. Thus, a two-dimensional array (really resembling a Hash, of course, but Rails is dealing with it in Arrays do to the find() and find_all_by() methods being used.

What I need to do, is on a given Ad page, flag a single object as the "current" Ad so it can be denoted as such in the view.

I've isolated it with

@ads.select {|a| a[:id] == id}

But if I attempt

@ads.select {|a| a[:id] == id}.push :current => true

I seem to end up with a new element INSIDE that object element, like so:

@ads then contains

[{:id => 9283
:name => "Name Here"
:price => 2000
:phone => "999-999-9999"},
{:current=>true}]

How can I add it to the existing attributes for the selected object so that it becomes accessible by simply ad[:current] within the view? Should I do a loop?

flyingjamus · Accepted Answer · 2013-05-29 15:58:47Z

3

select is returning an array, but you want a specific hash in the array, so use find. Now that you're dealing with a hash, you don't need to push, but merge

@ads.find {|a| a[:id] == id}.merge! :current => true

answered May 29, 2013 at 15:58

flyingjamus

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