CODEWITHSUNDEEP
breeze
travis thelen
travis thelen

Reputation: 67

breeze appears to load metadata every query

Consider the code snippet below ... the WebApi controller Metadata method is called both times for executeQuery below ... Why?

Thanks, Travis 

 var manager = (typeof options.breezeController !== 'undefined') ? options.breezeController : Mosaic.Global.defaultBreezeManager();

        var query = breeze.EntityQuery
            .from("GetColonies")
            //.select("VIVLINE_GUID, VIVLINE_NAME") 
            .orderBy("VIVLINE_NAME");

        manager.executeQuery(query);

        manager.executeQuery(query)
            .then((data) => {
                this.viewModel.items.removeAll;
                this.prepData(data.results);
                this.viewModel.setSelectedValue(selectedModel);
            });

Upvotes: 2

Views: 443

Answers (1)

Jay Traband
Jay Traband

Reputation: 17052

Breeze checks if the metadata exists on the client for a given service before each query. If the metadata is not present then it will ask for it before executing the query.

What I am guessing is happening in your case is that both queries start before either returns metadata. This will cause metadata to be fetched more than once. However, once it does make it down you shouldn't see any further requests.

One suggestion would be to force the loading of metadata before any query, i.e. 

  manager.fetchMetadata().then(function() {
    manager.executeQuery(query1);

    manager.executeQuery(query2);
  }

Upvotes: 2

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