图像模型包含id,file_name和description。宝石:RABL或GRAPE
通常的输出是:
{
"images": [
{
"id": 48660,
"file_name": "9e0f6.jpg",
"description": "View 1"
},
{
"id": 48665,
"file_name": "fd42f.jpg",
"description": "View 2"
},
{
"id": 48662,
"file_name": "477e8.jpg",
"description": "View 3"
}
]
}
如何删除属性/键并将值转换为数组,如下所示?
{
"images":[
[
48660,
"9e0f6.jpg",
"View 1"
],
[
48665,
"fd42f.jpg",
"View 2"
],
[
48662,
"477e8.jpg",
"View 3"
]
]
}
答案 0 :(得分:0)
您可以使用
将其转换为哈希值JSON.parse(json)
并重建没有键的json
json_hash = JSON.parse(json)
inner_array = []
json_hash["images"].each do |elem|
inner_array << elem.collect{|key, value| value unless ["file_name"].include?(key)}
end
json_hash["images"] = inner_array
json_hash.to_json