In this chapter, we have covered the capabilities of the new Ext JS 4 data package through examples. We introduced the new
Model class with its new capabilities, such as Associations and Validations. We learned there are two model associations—
belongsTo. We also learned the validation types.
We covered the three new client proxies—
Memory. We also covered the server proxies—
JsonP. We learned how to declare proxies inside Models (and perform CRUD actions directly from the Model) or inside Stores.
We learned new
Store capabilities, such as Sorting and Filtering, through examples, and we presented how readers and writers are now organized in Ext JS 4 and covered some examples.
In the ...