How to display the corresponding value from an array in an object property?

• 0
  If you run the code, you can see that by sourceType "application.k8s" two objects are created, but they both have the same "parent" object.
  
  

  {
    dataType: "METRIC",
    name: "metricIngest_application_k8s_CUSTOM",
    parent: {
      dataType: "METRIC",
      name: "metricIngest_application_k8s",
      policyType: "INGEST",
      sourceType: "application.k8s"
    },
    policyScope: "customDataSources",
    policyType: "INGEST",
    sourceType: "application.k8s"
  }, {
    dataType: "DATAMAP",
    name: "modelIngest_application_k8s_CUSTOM",
   parent: {
      dataType: "METRIC",
      name: "metricIngest_application_k8s",
      policyType: "INGEST",
      sourceType: "application.k8s"
    },
    policyScope: "customDataSources",
    policyType: "INGEST",
    sourceType: "application.k8s"
  }

  
  
  Although they must have a different "parent" object, because in the "policyReferences" array by sourceType "application.k8s" there are 2 different objects, this can be seen from the "dataType" field. That is, there should be different values ​​and not the first element in the array. Please help me solve the problem.
  

  const policyDataSources = {
      defaultDataSources: [
          {
              policyReferences: [
                  {
                      dataType: "EVENT",
                      policyName: "eventIngest_cz",
                      policyType: "INGEST"
                  }
              ],
              sourceType: "CZ",
          },
          {
              policyReferences: [
                  {
                      dataType: "METRIC",
                      policyName: "metricIngest_application_k8s",
                      policyType: "INGEST"
                  },
                  {
                      dataType: "DATAMAP",
                      policyName: "modelIngest_application_k8s",
                      policyType: "INGEST"
                  }
              ],
              sourceType: "application.k8s"
          },
          {
              policyReferences: [
                  {
                      dataType: "EVENT",
                      policyName: "eventIngest_cz",
                      policyType: "INGEST"
                  }
              ],
              sourceType: "defaultTest"
          },
  
      ],
      customDataSources: [
          {
              policyReferences: [
                  {
                      dataType: "METRIC",
                      policyName: "testName",
                      policyType: "INGEST"
                  }
              ],
              sourceType: "testType"
          },
          {
              policyReferences: [
                  {
                      dataType: "EVENT",
                      policyName: "eventIngest_cz_CUSTOM",
                      policyType: "INGEST"
                  }
              ],
              sourceType: "CZ",
          },
          {
              policyReferences: [
                  {
                      dataType: "METRIC",
                      policyName: "metricIngest_application_k8s_CUSTOM",
                      policyType: "INGEST"
                  },
                  {
                      dataType: "DATAMAP",
                      policyName: "modelIngest_application_k8s_CUSTOM",
                      policyType: "INGEST"
                  }
              ],
              sourceType: "application.k8s"
          },
      ],
  }
         
  
         function formattedDataSources() {
              if (policyDataSources) {
                  let defaultDataSources = policyDataSources.defaultDataSources || []
                  let customDataSources = policyDataSources.customDataSources || []
                  const extractDefaultDataSourceType = defaultDataSources.map(el => el.sourceType)
                  const extractCustomDataSourceType = customDataSources.map(el => el.sourceType)
              if (defaultDataSources.length > 0 && customDataSources.length > 0) {
                      // extracting policy references from overwritten default datasource
                      customDataSources = customDataSources.map((cds) => {
                          const parent = defaultDataSources
                              .find(dds => dds.sourceType === cds.sourceType)
                          return {
                              ...cds,
                              ...(extractDefaultDataSourceType
                                  .includes(cds.sourceType)) && { parent: {
                  dataType: parent.policyReferences[0].dataType, // думаю проблема здесь
                                  name: parent.policyReferences[0].policyName,
                                  policyType: parent.policyReferences[0].policyType,
                                  sourceType: parent.sourceType
                              } },
                          }
                      })
                      defaultDataSources = defaultDataSources.filter(
                          dds => !extractCustomDataSourceType.includes(dds.sourceType)
                      )
                  }
                  // extracting all policy references which datasource has
                  // and linking them to sourceType
                  return Object.entries({
                      defaultDataSources,
                      customDataSources })
                      .map(([k, v]) => v.map(({ policyReferences, ...ref }) => policyReferences
                          .map(el => ({
                              name: el.policyName,
                              ...el,
                              ...ref,
                              policyScope: `${k}`,
                          }))))
                      .flat(2)
              }
              return []
          }
  console.log(formattedDataSources())

  JavaScript Isabelle Hickman, Jun 30, 2019

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0 Answers