Create multi-dimensional array or hash in ruby from JSON - ruby

Question

I am using Rhomobile and trying to dynamically build a hash for the id and title of the buttons has of the Alert.show_popup, but am not quite getting it. What I want the end result to be, in effect, is:
Alert.show_popup( {
:message => 'Please Select Appropriate Address:',
:title => 'Get Nearby...',
:icon => :info,
:buttons => [
{'id' => '1', 'title' => 'Address 1'},
{'id' => '2', 'title' => 'Address 2'},
{'id' => '3', 'title' => 'Address 3'},
{'id' => '4', 'title' => 'Address 4'}
],
:callback => url_for(:action => :on_addressidentified_popup)
}
)
I've tried a few methods, but none have worked (build a string that looks like a hash and try_convert, etc.). Here was the latest one I tried which seemed close, but yet still far away:
nearbyaddresses = Rho::JSON.parse(#params['body'])
h = {}
nearbyaddresses.each do |location|
h[intIndex] = {}
h[intIndex][:id] = intIndex.to_s
h[intIndex][:title] = location["Address"].to_s
intIndex = intIndex + 1
end
Alert.show_popup( {
:message => 'Please Select Appropriate Address:',
:title => 'Get Nearby...',
:icon => :info,
:buttons => h,
:callback => url_for(:action => :on_addressidentified_popup)
}
)
Any ruby wizards here that can help me out?

Answer 1

How about
nearby_addresses_list = Rho::JSON.parse(#params['body'])
buttons_list = nearby_addresses_list.collect.each_with_index {|address, i|
{'id' => i, 'title' => address} #not sure if you need to dig into this at all.
}
This should leave buttons_list with this value
[{'id' => 0, 'title' => nearby_addresses_list[0]},
{'id' => 1, 'title' => nearby_addresses_list[1]}
{'id' => 2, 'title' => nearby_addresses_list[2]}
{'id' => 3, 'title' => nearby_addresses_list[3]}]
If you want the id's to start with 1, change the body of the collect statement to {'id' => i+1, 'title' => address}
Then just add buttons_list in as the value for the key :buttons.
Alert.show_popup( {
:message => 'Please Select Appropriate Address:',
:title => 'Get Nearby...',
:icon => :info,
:buttons => buttons_list,
:callback => url_for(:action => :on_addressidentified_popup)
})
If you're seeing weirdness between the desired output you mentioned first and the code you said was close, is it perhaps that you used symbols for the keys in your code (:id), and strings in your desired output ("id") ?

Answer 2

Here's how I addressed the issue. Works like a charm...
intIndex = 0
nearbyaddresses = Rho::JSON.parse(#params['body'])
##nearbyAddresses = nearbyaddresses
button_array = []
nearbyaddresses.each do |location|
opt = {'id' => intIndex.to_s, 'title' => location["Address"] }
button_array << opt
intIndex = intIndex + 1
end
Alert.show_popup( {
:message => 'Please Select Appropriate Address:',
:title => 'Get Nearby...',
:icon => :info,
:buttons => button_array,
:callback => url_for(:action => :getselectedaddress)
}
)