#FluxoRelational

Sometimes you need that some internal attributes of your store behave like stores, so you are searching for FluxoRelational.

FluxoRelational add to your Fluxo store the capability to easily work with nested stores.

#Usage

Lets say that you have a Post store that have an author and comments that author and comments need be stores. You'll need create your store using the Fluxo.Relational.ObjectStore#create and specify the attributes that are children stores on the relations store structure property. On this property you can declare if your attributes are a collections of stores (has many) or a single stores (has one). Look the implementation below.

var PostStructure = {
  relations: {
    author: { type: Fluxo.Relational.HasOne },
    comments: { type: Fluxo.Relational.HasMany }
  }
};

var post = Fluxo.Relational.ObjectStore.create(PostStructure);

post.set({
  author: { name: "Fluxo Team" },
  comments: [
    { content: "Wow, this is great!" },
    { content: "More one comment" }
  ]
});

##Setters On the example above ff you call post.setAttribute("author", { name: "New Name" }); internally it will call post.data.author.set({ name: "New Name" }); and post will emit the change and author:change:name events.

On the collection the post.setAttribute("comments", [{ content: "Hello!" }]); will call the collection resetStores with the passed array.

If the actual attribute value is null the relation will create the object internally, if the attribute is already a Fluxo store the parent will just call the child set. If you set null/false/undefined on attribute that is a Fluxo store the parsed store will be removed.

##JSON Calling the toJSON on a Fluxo relational store will recursively call the children's toJSON, so the JSON of our store above gonna be something like this:

{
  author: {
    cid: "FS:1",
    name: "Fluxo Team"
  },
  comments: {
    data: {
      cid: "FS:2"
    },
    stores: [
      {
        cid: "FS:3",
        name: "Wow, this is great!"
      },
      {
        cid: "FS:4",
        name: "More one comment"
      }
    ]
  }
}

##Events

Every children stores events gonna be bubbled up to the parent, so, if you call post.data.author.setAttribute("name", "Fluxo") the post store will trigger the author:change:name. The structure of the events on the parent always gonna be <relation-name>:<event-name>.