Facing problem in searching on item metadata and configuring entities in Dspace 7

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Mohit Jain

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Jun 22, 2020, 10:57:00 AM6/22/20

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I am new to Dspace and I am following given document for configuring entities in Dspace 7

https://docs.google.com/document/d/1X0XsppZYOtPtbmq7yXwmu7FbMAfLxxOCONbw0_rl7jY/edit#heading=h.lksvg0ayjx6r

I have changed relationship-types.xml at following path /dspace/backend/dspace/config/entities and tried to process this XML into database using scripts given on page 5 of above document. i.e

[install_dir]/bin/dspace dsrun org.dspace.app.util.InitializeEntities -f

[install_dir]/config/relationship-types.xml

Also the path given in document seems wrong.

My second problem is searching item using custom metadata.

I have used Rest API to successfully create metadata schema, metadata fields and the same is also there in respective database tables. And when I create an item with these metadata fields, the item is also created successfully but I am facing 2 problems with this.

1. The name of item becomes null

2. I am not able to search an Item using its metadata.

Following is the script I used to create an Item

{
  "name": "42172016",
  "metadata": {
    "sci.resp.name": [
      {
        "value": "ABCD",
        "language": "en",
        "authority": null,
        "confidence": -1
      }
    ],
    "sci.pet.name": [
      {
        "value": "XYZ",
        "language": "en",
        "authority": null,
        "confidence": -1
      }
    ],
    "sci.regNo": [
      {
        "value": "42172016",
        "language": "en",
        "authority": null,
        "confidence": -1
      }
    ]
  },
  "inArchive": true,
  "discoverable": true,
  "withdrawn": false,
  "type": "item"
}


when I search using rest api /api/discover/search/objects?query=42172016&dsoType=ITEM  I get the following result

{
  "id": null,
  "scope": null,
  "query": "42172016",
  "appliedFilters": null,
  "sort": null,
  "configuration": null,
  "type": "discover",
  "_links": {
    "self": {
      "href": "http://<>/server/api/discover/search/objects?query=42172016&dsoType=ITEM"
    }
  },
  "_embedded": {
    "searchResult": {
      "_embedded": {
        "objects": []
      },
      "page": {
        "number": 0,
        "size": 20,
        "totalPages": 0,
        "totalElements": 0
      },
      "_links": {
        "self": {
          "href": "http://<>/server/api/discover/search/objects?query=42172016&dsoType=ITEM"
        }
      }
    },
    "facets": [
      {
        "name": "author",
        "facetType": "text",
        "facetLimit": 5,
        "_links": {
          "self": {
            "href": "http://<>/server/api/discover/facets/author?query=42172016&dsoType=ITEM"
          }
        },
        "_embedded": {
          "values": []
        }
      },
      {
        "name": "subject",
        "facetType": "hierarchical",
        "facetLimit": 5,
        "_links": {
          "self": {
            "href": "http://<>/server/api/discover/facets/subject?query=42172016&dsoType=ITEM"
          }
        },
        "_embedded": {
          "values": []
        }
      },
      {
        "name": "dateIssued",
        "facetType": "date",
        "facetLimit": 5,
        "_links": {
          "self": {
            "href": "http://<>/server/api/discover/facets/dateIssued?query=42172016&dsoType=ITEM"
          }
        },
        "_embedded": {
          "values": []
        }
      },
      {
        "name": "has_content_in_original_bundle",
        "facetType": "standard",
        "facetLimit": 2,
        "_links": {
          "self": {
            "href": "http://<>/server/api/discover/facets/has_content_in_original_bundle?query=42172016&dsoType=ITEM"
          }
        },
        "_embedded": {
          "values": []
        }
      },
      {
        "name": "entityType",
        "facetType": "text",
        "facetLimit": 5,
        "_links": {
          "self": {
            "href": "http://<>/server/api/discover/facets/entityType?query=42172016&dsoType=ITEM"
          }
        },
        "_embedded": {
          "values": []
        }
      }
    ]
  }
}

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