CODEWITHSUNDEEP
entity-frameworkangularjsbreezedtocustom-object
filya
filya

Reputation: 41

Where do you create a custom model (DTO) in server code, such that Breeze can relate to EntityFramework entities?

I am developing a SPA using Angular-Breeze-WebAPI-EntityFramework.

Now Breeze uses the Entity Framework metadata information to create it's own Breeze models. We use this in our application for Breeze validation.

So far, it's all been nice and easy. Now we are having to create a search page (say for querying customers). The search can be by Customer.Name or by Product.Id (which would return a list of customers who have bought that product). The result is a ng-repeater, which displays Customer.Name, Order.LastPlaced etc.

if you are getting confused by the tables and columns, forget that. What I am only trying to get to is that, both the search object and the result object are not 1:1 with Entity tables (or objects). So obviously I feel the need to create a custom object (one for the search and one for the results). My question primarily is where and how do I create that object?

If I create it at the data layer, Breeze would have no idea of the metadata for each of the properties (since it uses EF for that).

I obviously can't create just a JavaScript object, since I will have to query the database (using EF) to search and populate the object.

So where does one create such a custom object (traversing multiple tables) such that Breeze still can figure out the metadata and perform validation and such when the need arises?

Thank you all.

Upvotes: 0

Views: 394

Answers (1)

Jay Traband
Jay Traband

Reputation: 17052

You can create metadata on the client for types that the server either doesn't know about or doesn't have the schema for. See http://www.breezejs.com/documentation/metadata-by-hand.

Upvotes: 1

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