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Example code of transformers/mapping-transformer

Informations about the package mapping-transformer

MappingTransformer

Latest version Total downloads Build status Test coverage Code style

MappingTransformer integrates Mapper into Porter to support data transformations using Mapping objects. A full discussion of Mapper is beyond the scope of this document but the linked repository contains comprehensive documentation. MappingTransformer builds on Mapper by providing a powerful mapping strategy called SubImport.

Sub-imports

The SubImport strategy provides a way to join data sets together. A mapping may contain any number of sub-imports, each of which may receive a different ImportSpecification. A sub-import causes Porter to begin a new import operation and thus supports all import options without limitation, including importing from different providers and applying a separate mapping to each sub-import.

Signature

  1. $specificationOrCallback – Either an ImportSpecification instance or callable that returns such an instance.

ImportSpecification Example

The following example imports MyImportSpecification and copies the foo field from the input data into the output mapping. Next it performs a sub-import using MyDetailsSpecification and stores the result in the details key of the output mapping.

Callback example

The following example is the same as the previous except MyDetailsSpecification now requires an identifier that is copied from details_id present in the input data. This is only possible using a callback since we cannot inject strategies inside specifications.

All versions of mapping-transformer with dependencies

PHP Build Version
Package Version
Requires php Version ^8.1
scriptfusion/mapper Version ^1|^2|^3
scriptfusion/porter Version ^7
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