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Nested loop #314

Description

@hpitzer69

Hi, I am trying to loop an array inside an array in my template.json file for the desired output.

I created a simple payload to demonstrate:

Input file

{
  "root": {
    "type": "produce",
    "vegetables": [
      {
        "name": "tomato",
        "color": "red"
      },
      {
        "name": "cucumber",
        "color": "green"
      },
      {
        "name": "bell-pepper",
        "color": "yellow"
      }
    ],
    "fruit": [
      {
        "name": "banana",
        "color": "yellow"
      },
      {
        "name": "orange",
        "color": "orange"
      },
      {
        "name": "apple",
        "color": "green"
      }
    ]
  }
}

Working template - loop array's used separately

{
  "payload": {
    "produce-color": {
      "green": {
        "#loop($..fruit[?(@.color == 'green')])": {
          "name": "#currentvalueatpath($.name)"
        },
        "#loop($..vegetables[?(@.color == 'green')])": {
          "name": "#currentvalueatpath($.name)"
        }
      },
      "orange": {
        "#loop($..fruit[?(@.color == 'orange')])": {
          "name": "#currentvalueatpath($.name)"
        },
        "#loop($..vegetables[?(@.color == 'orange')])": {
          "name": "#currentvalueatpath($.name)"
        }
      },
      "red": {
        "#loop($..fruit[?(@.color == 'red')])": {
          "name": "#currentvalueatpath($.name)"
        },
        "#loop($..vegetables[?(@.color == 'red')])": {
          "name": "#currentvalueatpath($.name)"
        }
      },
      "yellow": {
        "#loop($..fruit[?(@.color == 'yellow')])": {
          "name": "#currentvalueatpath($.name)"
        },
        "#loop($..vegetables[?(@.color == 'yellow')])": {
          "name": "#currentvalueatpath($.name)"
        }
      }
    }
  }
}

Output for working template

{
    "payload": {
        "produce-color": {
            "green": [
                {
                    "name": "apple"
                },
                {
                    "name": "cucumber"
                }
            ],
            "orange": [
                {
                    "name": "orange"
                }
            ],
            "red": [
                {
                    "name": "tomato"
                }
            ],
            "yellow": [
                {
                    "name": "banana"
                },
                {
                    "name": "bell-pepper"
                }
            ]
        }
    }
}

Failing template - nested arrays - (color green only)

{
  "payload": {
    "produce-color": {
      "green": {
        "#loop($..fruit[?(@.color == 'green')])": {
          "name": "#currentvalueatpath($.name)",
          "other": {
            "#loop($.vegetables[?(@.color == 'green')])": {
              "name": "#currentvalueatpath($.name)"
            }
          }
        }    
      },
      "orange": {
        "#loop($..fruit[?(@.color == 'orange')])": {
          "name": "#currentvalueatpath($.name)"
        },
        "#loop($..vegetables[?(@.color == 'orange')])": {
          "name": "#currentvalueatpath($.name)"
        }
      },
      "red": {
        "#loop($..fruit[?(@.color == 'red')])": {
          "name": "#currentvalueatpath($.name)"
        },
        "#loop($..vegetables[?(@.color == 'red')])": {
          "name": "#currentvalueatpath($.name)"
        }
      },
      "yellow": {
        "#loop($..fruit[?(@.color == 'yellow')])": {
          "name": "#currentvalueatpath($.name)"
        },
        "#loop($..vegetables[?(@.color == 'yellow')])": {
          "name": "#currentvalueatpath($.name)"
        }
      }
    }
  }
}

Output for failing template - for color green

 "green": [
                {
                    "name": "apple",
                    "other": null
                }
            ],

Is there an option to get this to work with the current framework, or is this a limitation?

If there is an option, will that option work for more than two arrays nested?

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