copy_field

The copy_field processor copies the source field value to a destination field for any DataEntity or DataWindow.

Usage

Copy a field value to another field

Example of a job using the copy_field processor

{
    "name" : "testing",
    "workers" : 1,
    "slicers" : 1,
    "lifecycle" : "once",
    "assets" : [
        "standard"
    ],
    "operations" : [
        {
            "_op": "test-reader"
        },
        {
            "_op": "copy_field",
            "source": "name",
            "destination": "name_again"
        }
    ]
}

Example of the data and the expected results

const data = [
    DataEntity.make({ name: 'lilly', otherField: 1 }),
    DataEntity.make({ name: 'willy', otherField: 2  }),
    DataEntity.make({ name: 'billy', otherField: 3  }),
    DataEntity.make({ name: 'dilly', otherField: 4  }),
]

const results = await processor.run(data);

DataEntity.make({ name: 'lilly', name_again: 'lilly', otherField: 1 }),
DataEntity.make({ name: 'willy', name_again: 'willy', otherField: 2  }),
DataEntity.make({ name: 'billy', name_again: 'billy', otherField: 3  }),
DataEntity.make({ name: 'dilly', name_again: 'dilly', otherField: 4  }),

Parameters

Configuration	Description	Type	Notes
_op	Name of operation, it must reflect the exact name of the file	String	required
source	Name of field to copy the value from	String	required, no default
destination	Name of field to copy the value to	String	required, no default
delete_source	Option to delete the source field once the value is copied to the destination field	Boolean	optional, defaults to false