[英]How to loop thru or iterate an array list and then concatenate the values in Dataweave
I have an input payload [id, name].我有一个输入有效载荷 [id, name]。 Based on this input, I want to loop through each value in the array and form a where clause for my select statement.
基于这个输入,我想遍历数组中的每个值,并为我的 select 语句形成一个 where 子句。
Input:输入:
{
"column": ["id","name"]
}
Expected Output:预期 Output:
"id == '123' and name == 'abc'"
With one column I am able to do, but with multiple columns how to iterate and then concatenate?用一列我可以做到,但是用多列如何迭代然后连接?
Assuming you lookup values from another array, you could do something crude like this.假设您从另一个数组中查找值,您可以像这样粗略地做一些事情。
%dw 2.0
output application/json
var values = [2,"test"]
---
payload.column map
{
a: $ ++ " == " ++ "'" ++ values[($$)] ++ "'"
}.a joinBy " and "
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