{"type":"doc","content":[{"type":"heading","attrs":{"level":2},"content":[{"text":"Design","type":"text"}]},{"type":"paragraph","content":[{"text":"An advanced feature is the use of the XML attribute strategy on a ","type":"text"},{"text":"top level ","type":"text","marks":[{"type":"link","attrs":{"href":"/wiki/spaces/CS/pages/1487208655#MetadataConcepts-Top"}}]},{"text":"metadata field for example ","type":"text"},{"text":"Title","type":"text","marks":[{"type":"code"}]},{"text":", ","type":"text"},{"text":"Description","type":"text","marks":[{"type":"code"}]},{"text":", ","type":"text"},{"text":"Authors","type":"text","marks":[{"type":"code"}]},{"text":", ","type":"text"},{"text":"RightsOwner","type":"text","marks":[{"type":"code"}]},{"text":".","type":"text"}]},{"type":"paragraph","content":[{"text":"We have four possible values for the attribute","type":"text"}]},{"type":"orderedList","attrs":{"order":1},"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"KEEP","type":"text","marks":[{"type":"code"}]},{"text":" → Don't overwrite the old value for this field if it was not empty","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"OVERWRITE","type":"text","marks":[{"type":"code"}]},{"text":" → ","type":"text"}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Overwrite the old value for this field","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"This is the default strategy for ","type":"text"},{"text":"simple fields","type":"text","marks":[{"type":"link","attrs":{"href":"/wiki/spaces/CS/pages/2703753301"}}]},{"text":" which are fields that contain a textual value such as ","type":"text"},{"text":"Title","type":"text","marks":[{"type":"code"}]},{"text":" and ","type":"text"},{"text":"Description","type":"text","marks":[{"type":"code"}]},{"text":".","type":"text"}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"MERGE","type":"text","marks":[{"type":"code"}]},{"text":" → ","type":"text"}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Only allowed for ","type":"text"},{"text":"complex fields","type":"text","marks":[{"type":"link","attrs":{"href":"/wiki/spaces/CS/pages/2703753301"}}]},{"text":" which are fields that contain","type":"text"},{"text":" sub fields","type":"text","marks":[{"type":"link","attrs":{"href":"/wiki/spaces/CS/pages/1487208655#MetadataConcepts-Sub"}}]},{"text":", such as ","type":"text"},{"text":"Authors","type":"text","marks":[{"type":"code"}]},{"text":", ","type":"text"},{"text":"Keywords","type":"text","marks":[{"type":"code"}]},{"text":" and ","type":"text"},{"text":"Categories","type":"text","marks":[{"type":"code"}]},{"text":".","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Merge the new sub fields with the existing sub fields","type":"text"}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"This is the default strategy for complex fields","type":"text"}]}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"SUBTRACT","type":"text","marks":[{"type":"code"}]},{"text":" → ","type":"text"}]},{"type":"bulletList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Only allowed for ","type":"text"},{"text":"complex fields","type":"text","marks":[{"type":"link","attrs":{"href":"/wiki/spaces/CS/pages/1487208655#MetadataConcepts-ComplexField"}}]}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"text":"Removes the values from the existing values.","type":"text"}]}]}]}]}]},{"type":"panel","attrs":{"panelType":"info"},"content":[{"type":"paragraph","content":[{"text":"SUBTRACT is only available in versions 21.1 and up.","type":"text"}]}]},{"type":"panel","attrs":{"panelType":"warning"},"content":[{"type":"paragraph","content":[{"text":"Strategies are only available on ","type":"text"},{"text":"top","type":"text","marks":[{"type":"strong"}]},{"text":" level metadata fields","type":"text"}]}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"Structure","type":"text"}]},{"type":"paragraph","content":[{"text":"In JSON the strategies are provided as follows","type":"text"}]},{"type":"codeBlock","content":[{"text":"{\n \"MergeStrategies\": {\n \"Title\": \"KEEP\",\n \"Description\": \"OVERWRITE\",\n \"Keywords\": \"MERGE\",\n \"Categories\": \"SUBTRACT\"\n },\n \"Descriptive\": {\n \"Title\": \"Lore Ipsum\",\n ...\n },\n \"Structural\": {...}\n}","type":"text"}]},{"type":"paragraph","content":[{"text":"In XML the strategies are provided as follows","type":"text"}]},{"type":"codeBlock","attrs":{"language":"xml"},"content":[{"text":"\n\n \n ...\n \n","type":"text"}]},{"type":"heading","attrs":{"level":2},"content":[{"text":"Examples","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Input Metadata","type":"text"}]},{"type":"codeBlock","attrs":{"language":"xml"},"content":[{"text":"\n\n \n Nouveau dinosaure en Argentine\n Un nouveau dinosaure a été découvert en Argentine ! Des chercheurs ont trouvé, sur un site archéologique, des ossements appartenant à une nouvelle espèce. Espèce qui aurait vécu il y a plus de 200 millions d'années.\n \n Argentine\n RTL\n \n \n dinosaure\n \n \n","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Existing Metadata","type":"text"}]},{"type":"codeBlock","attrs":{"language":"xml"},"content":[{"text":"\n\n \n [BREAKING] Nouveau dinosaure en Argentine!\n Un nouveau dinosaure a été découvert en Argentine.\n \n News\n Paléontologie\n RTL\n \n \n dinosaure\n archéologique\n \n \n","type":"text"}]},{"type":"heading","attrs":{"level":3},"content":[{"text":"Resulting Metadata","type":"text"}]},{"type":"codeBlock","attrs":{"language":"xml"},"content":[{"text":"\n\n \n [BREAKING] Nouveau dinosaure en Argentine!\n Un nouveau dinosaure a été découvert en Argentine ! Des chercheurs ont trouvé, sur un site archéologique, des ossements appartenant à une nouvelle espèce. Espèce qui aurait vécu il y a plus de 200 millions d'années.\n \n Argentine\n News\n Paléontologie\n RTL\n \n \n archéologique\n \n \n","type":"text"}]},{"type":"paragraph"}],"version":1}

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