jq select items where a property contains the value of another property-CodePudding

I'm trying to filter for items from a list that contain the values of other properties in the same object.

Example of the data.json:

{ result: 
  [
    { name: 'foo', text: 'my name is foo' },
    { name: 'bar', text: 'my name is baz' },
  ]
}

What I've tried:

cat data.json | jq '.result[] | select(.text | ascii_downcase | contains(.name))'

However it throws the following error: Cannot index string with string

Is there a way in jq to select based on a dynamic property rather than a string literal?

CodePudding user response：

Assuming your JSON looks more like this (strings in double quotes, no comma after the last array item):

{ "result": 
  [
    { "name": "foo", "text": "my name is foo" },
    { "name": "bar", "text": "my name is baz" }
  ]
}

When going into .text, you have lost the context from which you can access .name. You could save it (or directly the desired value) in a variable and reference it when needed:

jq '.result[] | select(.name as $name | .text | ascii_downcase | contains($name))'

{
  "name": "foo",
  "text": "my name is foo"
}

Demo