Working on frontend JS for posting

lms/static/coffee/src/open_ended/open_ended.coffee

@@ -0,0 +1,33 @@
+# This is a simple class that just hides the error container
+# and message container when they are empty
+# Can (and should be) expanded upon when our problem list
+# becomes more sophisticated
+class OpenEnded
+  constructor: (ajax_url) ->
+    @ajax_url = ajax_url
+    @error_container = $('.error-container')
+    @error_container.toggle(not @error_container.is(':empty'))
+
+    @message_container = $('.message-container')
+    @message_container.toggle(not @message_container.is(':empty'))
+
+    @problem_list = $('.problem-list')
+
+    @ban_button = $('.ban-button')
+    @unflag_button = $('.unflag-button')
+    @ban_button.click @ban
+    @unflag_button.click @unflag
+
+  unflag: (event) =>
+    event.preventDefault()
+
+  ban: (event) =>
+    event.preventDefault()
+
+  post: (cmd, data, callback) ->
+      # if this post request fails, the error callback will catch it
+      $.post(@ajax_url + cmd, data, callback)
+        .error => callback({success: false, error: "Error occured while performing this operation"})
+
+ajax_url = $('.open-ended-problems').data('ajax_url')
+$(document).ready(() -> new OpenEnded(ajax_url))