ruby on rails - Generation of table and accessing elements of a Array of Hashes -

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i have following array of hashes in rails application: 

a = ["{\"row1\"=>{\"correct\"=>{\"h\"=>\"10\", \"m\"=>\"11\", \"l\"=> \"12\"}, \"wrong\"=>{\"h\"=>\"2\", \"m\"=>\"2\", \"l\"=>\"4\"}, \"blank \"=>{\"h\"=>\"2\", \"m\"=>\"4\", \"l\"=>\"3\"}}, \"row2\"=>{\"correct \"=>{\"h\"=>\"2\", \"m\"=>\"4\", \"l\"=>\"4\"}, \"wrong\"=>{\"h \"=>\"4\", \"m\"=>\"6\", \"l\"=>\"6\"}, \"blank\"=>{\"h\"=>\"7\",  \"m\"=>\"5\", \"l\"=>\"6\"}}, \"row3\"=>{\"correct\"=>{\"h\"=>\"4\",  \"m\"=>\"6\", \"l\"=>\"7\"}, \"wrong\"=>{\"h\"=>\"6\", \"m\"=>\"7\",  \"l\"=>\"5\"}, \"blank\"=>{\"h\"=>\"7\", \"m\"=>\"9\", \"l\"=> \"3\"}}}"]

i want access elements , create database table it, in following format 

row1          correct    h=10, m=11,l=12               wrong      h=2, m=2,l=4               blank      h=2, m=4,l=3

...and similar row2 , row3.

how can that?

i tried access value using 

a["row1"]["correct"]["h"]

...but returns nil value.

how access values of array of hashes?

you need first convert string hash can done follows:

require 'json'  = ["{\"row1\"=>{\"correct\"=>{\"h\"=>\"10\", \"m\"=>\"11\", \"l\"=> \"12\"}, \"wrong\"=>{\"h\"=>\"2\", \"m\"=>\"2\", \"l\"=>\"4\"}, \"blank \"=>{\"h\"=>\"2\", \"m\"=>\"4\", \"l\"=>\"3\"}}, \"row2\"=>{\"correct \"=>{\"h\"=>\"2\", \"m\"=>\"4\", \"l\"=>\"4\"}, \"wrong\"=>{\"h \"=>\"4\", \"m\"=>\"6\", \"l\"=>\"6\"}, \"blank\"=>{\"h\"=>\"7\",  \"m\"=>\"5\", \"l\"=>\"6\"}}, \"row3\"=>{\"correct\"=>{\"h\"=>\"4\",  \"m\"=>\"6\", \"l\"=>\"7\"}, \"wrong\"=>{\"h\"=>\"6\", \"m\"=>\"7\",  \"l\"=>\"5\"}, \"blank\"=>{\"h\"=>\"7\", \"m\"=>\"9\", \"l\"=> \"3\"}}}" ]  hash_string = a[0] hash = json.parse hash_string.gsub("\n", '').gsub('=>', ':')  # access hash now: hash["row1"]["correct"]["h"] # => 10

btw, please note there typo. instead of correct, key correct small c instead of capital c.

hope helps : )


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