entity scaffold

app/views/entities/_form.html.haml

@@ -0,0 +1,19 @@
+= form_for @entity do |f|
+  - if @entity.errors.any?
+    #error_explanation
+      %h2= "#{pluralize(@entity.errors.count, "error")} prohibited this entity from being saved:"
+      %ul
+        - @entity.errors.full_messages.each do |message|
+          %li= message
+
+  .field
+    = f.label :name
+    = f.text_field :name
+  .field
+    = f.label :ha_id
+    = f.text_field :ha_id
+  .field
+    = f.label :type
+    = f.text_field :type
+  .actions
+    = f.submit 'Save'