Deep_search in big json object by method ruby - json

Question

I have a problem with filtering JSON object in ruby!
1. My JSON object is a big array of two hashes.
2. That hashes includes another hashes that include another arrays and hashes (oh god! :c).
My goal is to output Big hash that contains concrete value!
Examples down below:
JSON file just like in
[#That's hash 0{
"id": 0,
"firstName": "",
"lastName": "",
"middleName": null,
"email": "",
"phones": [
null,
null
],
"groups": [{
"id": 0,
"name": ""
}],
"disabled": "",
"technologies": [{
"id": 0,
"name": "",
"children": [{
"id": 1,
"name": "",
"children": [{
"id": 2,
"name": "Farmer",
"children": []
}]
}]
}],
"fullName": ""
},
#That's hash1{
"id": 0,
"firstName": "",
"lastName": "",
"middleName": null,
"email": "",
"phones": [
null,
null
],
"groups": [{
"id": 0,
"name": ""
}],
"disabled": "",
"technologies": [{
"id": 0,
"name": "",
"children": [{
"id": 1,
"name": "",
"children": [{
"id": 2,
"name": "Not Farmer",
"children": []
}]
}]
}],
"fullName": ""
}
]
Pseudocode on ruby (what I want to):
file = File.read("example.json") #=> Reading JSON file
data_hash = JSON.parse(file, object_class: Hash) #=> Parsing JSON file
data = data_hash.filter #=> filter that hash if "technologies" is not empty!
data.get_hash_by_value(value) #=> For example i put "Not Farmer" in value, and that method must search in all data that (value) and output hash1 for me (because hash0 not include "Not Farmer")
That's big problem, i don't know what to do!!!
My thoughts is a recursive finding method..

Answer 1

I wrote my own functions. Maybe it can help someone.
def check_children(item)
return true if item["name"] == "Farmer"
item["children"].each do |child_item|
break if check_children(child_item)
end
return false
end
data_hash.each do |item|
next if item["technologies"].empty?
item["technologies"].each do |technologies_item|
next if technologies_item["children"].empty?
technologies_item["children"].each do |children_item|
data << item if check_children(children_item)
end
end
end