load error messages into js for client side validation.

1 files changed, 21 insertions, 0 deletions

diff --git a/app/assets/javascripts/models/session.js.coffee b/app/assets/javascripts/models/session.js.coffee
new file mode 100644
index 00000000..bfea945e
--- /dev/null
+++ b/app/assets/javascripts/models/session.js.coffee
@@ -0,0 +1,21 @@
+class CakeSide.Models.Session extends Backbone.Model
+  modelKey: 'session'
+  defaults:
+    username: null
+    password: null
+
+  requiredFields: ['username', 'password']
+
+  validate: (attributes, options) ->
+    errors = {}
+
+    _.each @requiredFields, (field) =>
+      if _.isEmpty(attributes[field])
+        errors[field] = @errorFor(field, 'blank')
+
+    return errors if _.keys(errors).length > 0
+
+  errorFor: (attribute, scope) ->
+    attributeName = I18n.t("activerecord.attributes.#{@modelKey}.#{attribute}")
+    error = I18n.t("activerecord.errors.messages.#{scope}")
+    "#{attributeName} #{error}"