Query Related Records (Operation)

URL	`http://<layer-url>/queryRelatedRecords`
Parent Resource	Layer / Table

Description

Note: This operation was added at 10.

The query related records operation is performed on a layer / table resource. The result of this operation are featuresets grouped by source layer / table object IDs. Each featureset contains Feature objects including the values for the fields requested by the user. For related layers, if you request geometry information, the geometry of each feature is also returned in the featureset. For related tables, the featureset does not include geometries.

Also, each featureset contains array of field information objects for fields requested in outFields parameter. See Layer/Table for defails on fields. NOTE: domains member is not included in field information objects returned with the response.

Note that all parameters related to geometry will be ignored when querying related tables.

You can provide arguments to the query related records operation as query parameters defined in the parameters table below.

Parameters

Parameter	Details
f	Description: The response format. The default response format is html. Values: html \| json \| amf
objectIds	Description: The object IDs of this layer / table to be queried. Records related to these object IDs will be queried. Syntax: `objectIds=<objectId1>, <objectId2>` Example: `objectIds=37, 462`
relationshipId	Description: The ID of the relationship to be queried. The `relationships` that this layer / table participates in are included in the Layer / Table Resource response. Records in tables / layers corresponding to the related table / layer of the relationship are queried. Example: `relationshipId=4`
outFields	Description: The list of fields from the related table / layer to be included in the returned featureset. This list is a comma delimited list of field names. If you specify the shape field in the list of return fields, it is ignored. To request geometry, set `returnGeometry` to `true`. You can also specify the wildcard "" as the value of this parameter. In this case, the results will include all the field values. Example: `outFields=AREANAME,ST,POP2000` Example (wildcard usage): `outFields=`
definitionExpression	Description: The definition expression to be applied to the related table / layer. From the list of records that are related to the specified `objectIds`, only those records that conform to this expression will be returned. Example: `definitionExpression=POP2000 > 100000`
returnGeometry	Description: If `true`, the featureset includes the geometry associated with each feature. The default is `true`. Note that this parameter only applies to related layers. It will be ignored for related tables. Also, note that if the `outFields` parameter is set to the wildcard "", it implicitly implies `returnGeometry=true` and setting `returnGeometry` to false has no effect. Values*: `true \| false`
maxAllowableOffset	//This option was added at 10.0 Description: This option can be used to specify the `maximum allowable offset` to be used for generalizing geometries returned by the `query related records` operation. Example: `maxAllowableOffset=2`
outSR	Description: The spatial reference of the returned geometry. The spatial reference can be specified as either a well-known ID or as a spatial reference json object. If `outSR` is not specified, the geometry is returned in the spatial reference of the map. Note that this parameter only applies to related layers. It will be ignored for related tables.

Example Usage

Example 1: Query related records
http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Petroleum/KSPetro/MapServer/0/queryRelatedRecords?objectIds=3%2C4%2C5&relationshipId=2&definitionExpression=&returnGeometry=true&maxAllowableOffset=&outSR=&outFields=*&f=html

JSON Response Syntax

{
"geometryType" : "<geometryType>", //if records include geometry
"spatialReference" : <spatialReference>, //if records include geometry
"fields" : [
    {"name" : "<fieldName1>", "type" : "<fieldType1>", "alias" : "<fieldAlias1>", "length" : "<length1>"},
    {"name" : "<fieldName2>", "type" : "<fieldType2>", "alias" : "<fieldAlias2>", "length" : "<length2>"}
],
"relatedRecordGroups" : [
  {
    "objectId" : <objectId1>,
    "relatedRecords" : [ //features may include geometry for related layers only
      <relatedFeature11>, <relatedFeature12>
    ]
  },
  {
    "objectId" : <objectId2>,
    "relatedRecords" : [
      <relatedFeature21>, <relatedFeature22>
    ]
  }
]
}

JSON Response Example

{
  "geometryType" : "esriGeometryPolygon",
  "spatialReference" : {
    "wkid" : 4267
  },
  "fields" : [
    {
      "name" : "OBJECTID", 
      "type" : "esriFieldTypeOID", 
      "alias" : "OBJECTID"}, 
    {
      "name" : "FIELD_KID", 
      "type" : "esriFieldTypeString", 
      "alias" : "FIELD_KID", 
      "length" : 25}, 
    {
      "name" : "APPROXACRE", 
      "type" : "esriFieldTypeDouble", 
      "alias" : "APPROXACRE"}, 
    {
      "name" : "FIELD_NAME", 
      "type" : "esriFieldTypeString", 
      "alias" : "FIELD_NAME", 
      "length" : 150} 
],
  "relatedRecordGroups" : [
    {
      "objectId" : 3,
      "relatedRecords" : [
        {
          "attributes" : {
            "OBJECTID" : 5540,
            "FIELD_KID" : "1000147595",
            "APPROXACRE" : 95929,
            "FIELD_NAME" : "LOST SPRINGS",
          },
          "geometry" : {
            "rings" : [
              [
                [
                  -96.929599633999942,
                  38.52426809800005
                ],
                [
                  -96.929602437999961,
                  38.522448437000037
                ],
                [
                  -96.92959118999994,
                  38.529723252000053
                ],
                [
                  -96.929594022999936,
                  38.527905578000059
                ],
                [
                  -96.929596839999988,
                  38.526087119000067
                ],
                [
                  -96.929599633999942,
                  38.52426809800005
                ]
              ]
            ]
          }
        }
      ]
    }
  ]
}