在使用Jolt映射尝试将输入转换为必要格式时,我遇到了困难时期
输入JSON
header
输出JSON
{
"data": [
{
"name": "Alcohol",
"collection_id": 123,
"properties": [
{
"name": "Tax",
"property_id": "00001"
},
{
"name": "Expenditure",
"property_id": "00002"
}
],
"attributes": [
{
"name": "alcohol_tax",
"attribute_id": "00011"
},
{
"name": "alcohol_expenditure",
"attribute_id": "00022"
}
]
}
]
}
我尝试了几种方法,使用一些规则来组合数组,但收效甚微。
其中一项规则
[
{
"name": "Alcohol",
"collection_id": 123,
"details": [{
"property_name": "Tax",
"property_id": "00001",
"attribute_id": "00011"
},
{
"property_name": "Expenditure",
"property_id": "00002",
"attribute_id": "00022"
}
]
}
]
正在将所有属性添加到所有集合中。我不知道为什么会这样,因为我以为&1.property_id []只会将特定集合中的项目添加到数组中,而不是所有集合中。真正感谢您提供有关此原因的任何帮助/线索。
答案 0 :(得分:0)
请参阅以下解决方案:
[0]
创建包装数组[&1]
使用各个数组的位置,因此结果将合并在details
中,重要的部分是包装方括号,因此将其视为数组而不是文字。[
{
"operation": "shift",
"spec": {
"data": {
"*": {
"name": "[0].name",
"collection_id": "[0].collection_id",
"attributes": {
"*": {
"attribute_id": "[0].details.[&1].attribute_id"
}
},
"properties": {
"*": {
"name": "[0].details.[&1].name",
"property_id": "[0].details.[&1].property_id"
}
}
}
}
}
}
]
产生以下内容:
[
{
"name": "Alcohol",
"collection_id": 123,
"details": [
{
"attribute_id": "00011",
"name": "Tax",
"property_id": "00001"
},
{
"attribute_id": "00022",
"name": "Expenditure",
"property_id": "00002"
}
]
}
]