Create a specific json(Hash) from a csv using Ruby - arrays

Question

I would appreciate any help trying to create a multi faceted CSV (with header) into a json I can use for a post. Here is csv and JSON format required. Ultimately; I need to create a single location that may have 1, 2, or many fax machines.
csv
ID,Location Name,timezone,code,display,address,city,state,postalcode,country,faxlocation,faxnumber,(in)active
5,Location1,America/Chicago,bu,Building,1313 Mocking Bird Lane,The City,IL,999999,USA,Room 1; Room 2,111111111; 2222222222,active
8,Location2,America/New_York,bu,Building,2626 Humpty Dumpty Lane,Another City,NY,999999,USA,Room 1; Room 2; Room 3,111111111; 2222222222; 3333333333,active
32,Location3,America/Los_Angeles,bu,Building,3939 Big Bird Lane,Last City,CA,999999,USA,Room 1,111111111,active
json
{
"resourceType": "Location",
"id": "5",
"description": "America/Chicago",
"name": "Location1",
"address": {
"address": "1313 Mocking Bird Lane",
"city": "The City",
"state": "IL",
"postalCode": "999999",
"country": "USA"
},
"telecom": [
{
"system": "fax",
"value": "1111111111",
"use": "work",
"extension": [
{
"url": "displayValue",
"valueString": "Room 1"
}
]
},
{
"system": "fax",
"value": "2222222222",
"use": "work",
"extension": [
{
"url": "displayValue",
"valueString": "Room "
}
]
}
],
"status": "active"
}
all requires here
locations = CSV.read(csv)
locations.shift # remove header row
locations.each_index do |index|
faxnumarrat = locations[index][10].to_s.delete(' ').split(';') #Take 10th index and turn it into an array
faxlocarray = locations[index][11].to_s.delete(' ').split(';') #Take 11th index and turn it into an array
# keys = ['loc1','loc2']
# values = ['fax1','fax2']
my_hash = Hash[faxnumarray.zip(faxlocarray)] # Combine locations and fax numbers
my_hash.each do |key, value|
#fax_hash = { 'system' => 'fax', 'value' => key, 'use' => 'work', 'extension' => [{ 'url' => 'automaticSend', 'valueBoolean' => false }, { 'url' => 'displayValue', 'valueString' => value }] } #Build up a hash using k,v. ISSUE: Only creates one fax. Need to put all faxes associated no matter how many per location
end
end

Answer 1

Instead of reading in the entire CSV as an array of arrays, you instead can open
or create a new CSV instance and pass in an option to convert the first line of
into headers into keys to access columns within a row more easily; e.g.
locations = CSV.open(csv, headers: true)
location = locations.first
# => #<CSV::Row "ID":"5" "Location Name":"Location1" "timezone":"America/Chicago" "code":"bu" "display":"Building" "address":"1313 Mocking Bird Lane" "city":"The City" "state":"IL" "postalcode":"999999" "country":"USA" "faxlocation":"Room 1; Room 2" "faxnumber":"111111111; 2222222222" "(in)active":"active">
location["Location Name"]
# => "Location1"
With the headers as keys we can use, we can then build a new Hash object using
those old values, whilst also build a collection they you had started in your
question example
locations = CSV.open(csv, headers: true)
results = locations.map.with_index do |location, index|
faxnumarray = location["faxnumber"].delete(' ').split(';') #Take 10th index and turn it into an array
faxlocarray = location["faxlocation"].delete(' ').split(';') #Take 11th index and turn it into an array
# keys = ['loc1','loc2']
# values = ['fax1','fax2']
my_hash = Hash[faxnumarray.zip(faxlocarray)] # Combine locations and fax numbers
{
"resourceType" => "Location",
"id" => location["ID"],
"description" => location["timezone"],
"name" => location["Location Name"],
"address" => {
"address" => location["address"],
"city" => location["city"],
"state" => location["state"],
"postalCode" => location["postalcode"],
"country" => location["country"]
},
"telecom" => my_hash.map do |key, value|
{
'system' => 'fax',
'value' => key,
'use' => 'work',
'extension' => [
{
'url' => 'automaticSend',
'valueBoolean' => false
},
{
'url' => 'displayValue',
'valueString' => value
}
]
}
end,
"status" => location["(in)active"]
}
end
results.to_json
I reused your code where I could and made the last object (the returned object)
within the map block resemble the requested Hash result object. Using map
instead of each means it
Returns a new array with the results of running block once for every element in enum.
-- Module: Enumerable (Ruby 2_4_0)
This produces the following result
[
{
"resourceType": "Location",
"id": "5",
"description": "America/Chicago",
"name": "Location1",
"address": {
"address": "1313 Mocking Bird Lane",
"city": "The City",
"state": "IL",
"postalCode": "999999",
"country": "USA"
},
"telecom": [
{
"system": "fax",
"value": "111111111",
"use": "work",
"extension": [
{
"url": "automaticSend",
"valueBoolean": false
},
{
"url": "displayValue",
"valueString": "Room 1"
}
]
},
{
"system": "fax",
"value": "2222222222",
"use": "work",
"extension": [
{
"url": "automaticSend",
"valueBoolean": false
},
{
"url": "displayValue",
"valueString": " Room 2"
}
]
}
],
"status": "active"
},
{
"resourceType": "Location",
"id": "8",
"description": "America/New_York",
"name": "Location2",
"address": {
"address": "2626 Humpty Dumpty Lane",
"city": "Another City",
"state": "NY",
"postalCode": "999999",
"country": "USA"
},
"telecom": [
{
"system": "fax",
"value": "111111111",
"use": "work",
"extension": [
{
"url": "automaticSend",
"valueBoolean": false
},
{
"url": "displayValue",
"valueString": "Room 1"
}
]
},
{
"system": "fax",
"value": "2222222222",
"use": "work",
"extension": [
{
"url": "automaticSend",
"valueBoolean": false
},
{
"url": "displayValue",
"valueString": " Room 2"
}
]
},
{
"system": "fax",
"value": "3333333333",
"use": "work",
"extension": [
{
"url": "automaticSend",
"valueBoolean": false
},
{
"url": "displayValue",
"valueString": " Room 3"
}
]
}
],
"status": "active"
},
{
"resourceType": "Location",
"id": "32",
"description": "America/Los_Angeles",
"name": "Location3",
"address": {
"address": "3939 Big Bird Lane",
"city": "Last City",
"state": "CA",
"postalCode": "999999",
"country": "USA"
},
"telecom": [
{
"system": "fax",
"value": "111111111",
"use": "work",
"extension": [
{
"url": "automaticSend",
"valueBoolean": false
},
{
"url": "displayValue",
"valueString": "Room 1"
}
]
}
],
"status": "active"
}
]
References:
Class: CSV (Ruby 2_4_0)