This part is only needed if you plan to use your metadata mapping with the standard listener. Metadata mapping is made through an XML contribution on the metadataMappings extension point: You can refer to its documentation for further details and a complete list of formats. You can contribute your metadata mapping and choose to have it applied with the same rules and/or through Nuxeo Automation operations.īy default, the Nuxeo Platform uses ExifTool, which supports many different data formats including EXIF, GPS, IPTC, XMP. The default value is readonly="false" to preserve compatibility with existing configurations.
If the value is readonly="true", then modifying a field will not change the binary. This behavior is sometimes not desirable and can be controlled using the read-only property of the metadataMappings extension point. This means that the MetadataMapping is bidirectional by default: Values are read from the blob and stored in fields, and if the value of a mapped field is modified and the document is saved, this value is then written into the blob.
If the attached binary hasn't changed and the document metadata has changed, the listener writes the metadata from the document to the attached binary.If the attached binary has changed and the document metadata also has changed, the listener writes the metadata from the document to the attached binary.If the attached binary has changed and the document metadata has not, the listener reads the metadata from attached binary and stores it into the document.On document creation, if the attached binary is not empty, the listener reads the metadata and updates the document.How It WorksĪ Nuxeo listener watches for document creation/modification and triggers metadata mapping in the following conditions: Automated metadata extraction is activated by default on Nuxeo DAM: The IPTC legend, copyright and source are used to automatically fill in the description, rights and source metadata of pictures. This enables you to leverage metadata existing outside the Nuxeo Platform to automatically categorize documents, preventing users from editing document to report these metadata. The Nuxeo Platform enables to extract information from the uploaded files attached to a document and automatically fill in the document metadata at creation time.
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