create new entity with new entity type in breeze

问题

I'm writing cordova + angular + breeze app where text info from element should be stored in the cash of browser that wraps the app. Accordind to the docs to do so, first I need to create new entity type in breeze. I do the following:

var entityManager = new breeze.EntityManager("api/Northwind");
var newType = new breeze.EntityType({
    shortName: "input"
});

Next I'm trying to create new entity of this type:

var newEntity = newType.createEntity();

This fails with message: "TypeError: Cannot read property '_ctorRegistry' of undefined"

Is seems to be very basic functionality of breeze but I can't get it work for 2 days already. Could anyone help me with that?

回答1:

After created new EntityType, you should attach it to metadataStore to create entities of new type. Your code should look:

var metadataStore = new breeze.MetadataStore();
entityManager= new breeze.EntityManager({
            serviceName: "api/db",
            metadataStore: metadataStore
        });

// if you call fetchMetadata()
entityManager.fetchMetadata().then(function(){
    var newType = new breeze.EntityType({
        shortName: "input"
    });

    entityManager.metadataStore.addEntityType(newType);

    newType.createEntity(...);
    // ...
});

//or just use var metadataStore
var newType = new breeze.EntityType({
    shortName: "input"
});

entityManager.metadataStore.addEntityType(newType);

newType.createEntity(...);
// ...

来源：https://stackoverflow.com/questions/23651431/create-new-entity-with-new-entity-type-in-breeze