Add isLoaded to RecordArray for findMany and findAll

[mmpestorich]

Adds an isLoaded property and load method to DS.RecordArray. The developer's implementation of adapter.findAll and adapter.findMany can now function similar to existing adapter.findQuery semantics. Once all the results from a specific findAll or findMany query are retrieved, the load method is called and an isLoaded flag is set to true on the corresponding DS.RecordArray or DS.ManyArray.

For example:

findMany: function (store, type, ids, query, manyArray) {
  var request = { }; // some request

  var success = function(data, textStatus, jqXHR) {
    manyArray.load(JSON.parse(data));
  };

  $.ajax({
    'url': 'rest.php',  
    'type': 'POST', 
    'data': JSON.stringify(request),
    'success': [success]
  });
}

or:

findAll: function (store, type, recordArray) {
  var request = { }; // some request

  var success = function(data, textStatus, jqXHR) {
    recordArray.load(JSON.parse(data));
  };

  $.ajax({
    'url': 'rest.php',  
    'type': 'POST', 
    'data': JSON.stringify(request),
    'success': [success]
  });
}

[josepjaume]

Just what I was looking for :). It's just weird that you can't know wether the collection is loaded using findAll but you do when using findQuery.

+1!

[wycats]

This is resolved by f707b6c.

findAll is actually a bit different from what you are thinking. In particular, it's a live query that reflects all current items for a particular type. I think we should modify findAll to kick off a query and populate an AdapterPopulatedModelArray, and create a new all that represents the live query.

I'm closing this ticket for now.

[tchak]

@wycats I made changes as you proposed
https://github.com/tchak/data/compare/all-findAll
It break's a lot of tests as we change the semantics of findAll. If you confirm that this is what you want I will clean it up and make a PR

[tchak]

PR : #301

[hjdivad]

@wycats why would you not want isLoaded (or an equivalent) on the live query? The live query has the semantics we want for new records, but we still want to know whether or not the initial load is done to prevent rendering a view with unloaded, or partially loaded, records.