Remove explorer.is preferred api graph (#655)

Co-authored-by: Steve Faulkner <southpolesteve@gmail.com>

src/Explorer/DataSamples/ContainerSampleGenerator.test.ts

@@ -14,7 +14,6 @@ describe("ContainerSampleGenerator", () => {
   const createExplorerStub = (database: ViewModels.Database): Explorer => {
     const explorerStub = {} as Explorer;
     explorerStub.databases = ko.observableArray<ViewModels.Database>([database]);
-    explorerStub.isPreferredApiGraph = ko.computed<boolean>(() => false);
     explorerStub.isPreferredApiMongoDB = ko.computed<boolean>(() => false);
     explorerStub.isPreferredApiTable = ko.computed<boolean>(() => false);
     explorerStub.canExceedMaximumValue = ko.computed<boolean>(() => false);
@@ -115,7 +114,13 @@ describe("ContainerSampleGenerator", () => {
     collection.databaseId = database.id();
 
     const explorerStub = createExplorerStub(database);
-    explorerStub.isPreferredApiGraph = ko.computed<boolean>(() => true);
+    updateUserContext({
+      databaseAccount: {
+        properties: {
+          capabilities: [{ name: "EnableGremlin" }],
+        },
+      } as DatabaseAccount,
+    });
 
     const generator = await ContainerSampleGenerator.createSampleGeneratorAsync(explorerStub);
     generator.setData(sampleData);

src/Explorer/DataSamples/ContainerSampleGenerator.ts

@@ -73,7 +73,7 @@ export class ContainerSampleGenerator {
     }
     const promises: Q.Promise<any>[] = [];
 
-    if (this.container.isPreferredApiGraph()) {
+    if (userContext.apiType === "Gremlin") {
       // For Gremlin, all queries are executed sequentially, because some queries might be dependent on other queries
       // (e.g. adding edge requires vertices to be present)
       const queries: string[] = this.sampleDataFile.data;

src/Explorer/DataSamples/DataSamplesUtil.ts

@@ -57,6 +57,6 @@ export class DataSamplesUtil {
   }
 
   public isSampleContainerCreationSupported(): boolean {
-    return userContext.apiType === "SQL" || this.container.isPreferredApiGraph();
+    return userContext.apiType === "SQL" || userContext.apiType === "Gremlin";
   }
 }