task.js

// ==========================================================================
// Project:   Todos.TaskDataSource
// Copyright: ©2010 My Company, Inc.
// ==========================================================================
/*globals Todos */

/** @class

  (Document Your Data Source Here)

  @extends SC.DataSource
*/
sc_require('models/task');
Todos.TASKS_QUERY = SC.Query.remote(Todos.Task, {
  orderBy: 'isDone,description'
});

Todos.TaskDataSource = SC.DataSource.extend(
/** @scope Todos.TaskDataSource.prototype */ {

  // ..........................................................
  // QUERY SUPPORT
  // 

  fetch: function(store, query) {
    if (query === Todos.TASKS_QUERY) {
      SC.Request.getUrl('/tasks').header({'Accept': 'application/json'}).json()
        .notify(this, 'didFetchTasks', store, query)
        .send();
      return YES;
    }
 
    return NO;
  },

 
  didFetchTasks: function(response, store, query) {
    if (SC.ok(response)) {
       var storeKeys = store.loadRecords(Todos.Task, response.get('body').content);
   
      store.loadQueryResults(query, storeKeys);
    } else store.dataSourceDidErrorQuery(query, response);
  },
  

  // ..........................................................
  // RECORD SUPPORT
  // 
  

  retrieveRecord: function(store, storeKey) {
                    console.log("retrieve!")
    if (SC.kindOf(store.recordTypeFor(storeKey), Todos.Task)) {
      var url = store.idFor(storeKey);
      console.log(url);
      SC.Request.getUrl(url).header({
                  'Accept': 'application/json'
              }).json()
        .notify(this, 'didRetrieveTask', store, storeKey)
        .send();
      return YES;
   
    } else return NO;
  },
   
  didRetrieveTask: function(response, store, storeKey) {
    if (SC.ok(response)) {
      var dataHash = response.get('body').content;
      store.dataSourceDidComplete(storeKey, dataHash);
   
    } else store.dataSourceDidError(storeKey, response);
  }, 
  
  createRecord: function(store, storeKey) {
    if (SC.kindOf(store.recordTypeFor(storeKey), Todos.Task)) {
      
      SC.Request.postUrl('/tasks').header({ 'Accept': 'application/json' }).json()
        .notify(this, this.didCreateTask, store, storeKey)
        .send(store.readDataHash(storeKey));

      return YES;
   
    } else return NO;
  },


  didCreateTask: function(response, store, storeKey) {
    if (SC.ok(response)) {
      var id = response.get('body').content.id
      store.dataSourceDidComplete(storeKey, response.get('body').content, id); // update id
      //store.loadRecords(Todos.Task, [response.get('body').content]);
    } else {
      store.dataSourceDidError(storeKey, response);
    }
  },
  
  updateRecord: function(store, storeKey) {
                  console.log(storeKey);
    if (SC.kindOf(store.recordTypeFor(storeKey), Todos.Task)) {
      SC.Request.putUrl(store.idFor(storeKey)).header({
                  'Accept': 'application/json'
              }).json()
        .notify(this, this.didUpdateTask, store, storeKey)
        .send(store.readDataHash(storeKey));
      return YES;
      
    } else return NO ;
  },

  didUpdateTask: function(response, store, storeKey) {
    if (SC.ok(response)) {
      var data = response.get('body');
      if (data) data = data.content; // if hash is returned; use it.
      store.dataSourceDidComplete(storeKey, data) ;
        
    } else store.dataSourceDidError(storeKey); 
  },
    
  // ..........................................................
  // DESTROY RECORDS
  // 
    
  destroyRecord: function(store, storeKey) {
    if (SC.kindOf(store.recordTypeFor(storeKey), Todos.Task)) {
      SC.Request.deleteUrl(store.idFor(storeKey)).header({
                  'Accept': 'application/json'
              }).json()
        .notify(this, this.didDestroyTask, store, storeKey)
        .send();
      return YES;
      
    } else return NO;
  },

  didDestroyTask: function(response, store, storeKey) {
    if (SC.ok(response)) {
      store.dataSourceDidDestroy(storeKey);
    } else store.dataSourceDidError(response);
  }

  
}) ;