Implement table module

lib/table/table.coffee

@@ -0,0 +1,35 @@
+_ = require('lodash')
+
+KEY_DISPLAY_MAP =
+	commit: 'Commit'
+	app_name: 'Name'
+	git_repository: 'Git Repository'
+	device_type: 'Device Type'
+	id: 'ID'
+
+startsWithLetter = (string) ->
+	firstLetter = _.first(string)
+	return /[a-z|A-Z]/.test(firstLetter)
+
+renameObjectKey = (object, key, newKey) ->
+	object[newKey] = object[key]
+	delete object[key]
+
+exports.prepareObject = (object) ->
+	object = _.omit object, (value, key) ->
+		return not startsWithLetter(key)
+
+	for key, value of object
+		if _.isObject(value)
+			object[key] = exports.prepareObject(value)
+
+		displayKey = KEY_DISPLAY_MAP[key]
+		if displayKey?
+			renameObjectKey(object, key, displayKey)
+
+	object = _.omit object, (value, key) ->
+
+		# For some reason, _.isEmpty returns true for numbers
+		return _.isEmpty(value) and not _.isNumber(value)
+
+	return object

lib/table/table.spec.coffee

@@ -0,0 +1,58 @@
+expect = require('chai').expect
+table = require('./table')
+
+OBJECTS =
+	application:
+		device: null
+		id: 162
+		user:
+			__deferred: []
+			__id: 24
+		app_name: 'HelloResin'
+		git_repository: 'git@git.staging.resin.io:jviotti/helloresin.git'
+		commit: '1234'
+		device_type: 'raspberry-pi'
+		__metadata:
+			uri: '/ewa/application(162)'
+	basic:
+		hello: 'world'
+		Hey: 'there'
+		__private: true
+		_option: false
+		$data: [ 1, 2, 3 ]
+	recursive:
+		hello: 'world'
+		Hey:
+			__private: true
+			value:
+				$option: false
+				data: 'There'
+		_option: false
+		__something:
+			value: 'ok'
+		nested:
+			$data: [ 1, 2, 3 ]
+
+describe 'Table:', ->
+
+	describe '#prepareObject()', ->
+
+		it 'should get rid of keys not starting with letters', ->
+			expect(table.prepareObject(OBJECTS.basic)).to.deep.equal
+				hello: 'world'
+				Hey: 'there'
+
+		it 'should get rid of keys not starting with letters recursively', ->
+			expect(table.prepareObject(OBJECTS.recursive)).to.deep.equal
+				hello: 'world'
+				Hey:
+					value:
+						data: 'There'
+
+		it 'should do proper key renamings', ->
+			expect(table.prepareObject(OBJECTS.application)).to.deep.equal
+				ID: 162
+				Name: 'HelloResin'
+				'Git Repository': 'git@git.staging.resin.io:jviotti/helloresin.git'
+				Commit: '1234'
+				'Device Type': 'raspberry-pi'