[#168,docs/backend][m]: major extension to backend tutorial to give examples of most backends.

_includes/example-backends-csv-disk.js

@@ -0,0 +1,22 @@
+// the file input
+var $file = $('.my-file-input')[0];
+
+// listen for the file to be submitted
+$($file).change(function(e) {
+  // create the dataset in the usual way but specifying file attribute
+  var dataset = new recline.Model.Dataset({
+    file: $file.files[0],
+    backend: 'csv'
+  });
+
+  // now load - note that this is again async (HTML5 File API is async)
+  // dataset.fetch().done(function() { console.log('here'); });
+  dataset.fetch();
+
+  // For demonstrations purposes display the data in a grid
+  var grid = new recline.View.Grid({
+    model: dataset
+  });
+  $('#my-csv-disk').append(grid.el);
+});
+

_includes/example-backends-dataproxy.js

@@ -0,0 +1,17 @@
+var dataset = new recline.Model.Dataset({
+  url: 'http://data.london.gov.uk/datafiles/transport/tfl_passengers.csv',
+  // optional rows parameter specifies how many rows to retrieve - default is a 1000
+  // rows: 5000
+  backend: 'dataproxy'
+});
+
+// async again as we fetch via AJAX behind the scenes
+// once data is fetched it will be stored in a local MemoryStore so further querying will not involve the DataProxy
+dataset.fetch();
+
+// For demonstrations purposes display the data in a grid
+var grid = new recline.View.Grid({
+  model: dataset
+});
+$('#my-dataproxy').append(grid.el);
+

_includes/example-backends-elasticsearch.js

@@ -0,0 +1,13 @@
+var dataset = new recline.Model.Dataset({
+  url: 'http://datahub.io/dataset/rendition-on-record/ac5a28ea-eb52-4b0a-a399-5dcc1becf9d9/api',
+  backend: 'elasticsearch'
+});
+
+dataset.fetch();
+
+// For demonstrations purposes display the data in a grid
+var grid = new recline.View.SlickGrid({
+  model: dataset
+});
+$('#my-elasticsearch').append(grid.el);
+

_includes/example-backends-gdocs.js

@@ -15,7 +15,7 @@ $('#my-gdocs').append(grid.el);
 // Now do the query to the backend to load data
 dataset.fetch().done(function(dataset) {
   if (console) {
-    console.log(dataset.currentDocuments);
+    console.log(dataset.records);
   }
 });
 

_includes/example-backends-online-csv.js

@@ -0,0 +1,20 @@
+// Create the dataset in the usual way
+// Note the additional options you can specify for parsing the CSV file
+var dataset = new recline.Model.Dataset({
+  url: '{{page.root}}/demos/data/sample.csv',
+  backend: 'csv',
+  // separator: ',',
+  // delimiter: '"',
+  // encoding: 'utf8'
+});
+
+// remember this is async so if you want to do something you need to call it in done method e.g.
+// dataset.fetch.done(function(dataset) { console.log(dataset.recordCount)});
+dataset.fetch();
+
+// show the data for illustrations sake
+var grid = new recline.View.Grid({
+  model: dataset
+});
+$('#my-online-csv').append(grid.el);
+