Fixed issue #433 - Object manager allows method names as attributes.

app/models/object_manager/attribute.rb

@@ -663,6 +663,14 @@ to send no browser reload event, pass false
       raise 'At least one letters is needed'
     elsif name =~ /^(destroy|true|false|integer|select|drop|create|alter|index|table|varchar|blob|date|datetime|timestamp)$/
       raise "#{name} is a reserved word, please choose a different one"
+
+    # do not allow model method names as attributes
+    else
+      model = Kernel.const_get(object_lookup.name)
+      record = model.new
+      if record.respond_to?(name.to_sym) && !record.attributes.key?(name)
+        raise "#{name} is a reserved word, please choose a different one"
+      end
     end
     true
   end

test/unit/object_manager_test.rb

@@ -407,6 +407,26 @@ class ObjectManagerTest < ActiveSupport::TestCase
     }
     assert_equal(false, ObjectManager::Attribute.pending_migration?)
 
+    assert_raises(RuntimeError) {
+      attribute18 = ObjectManager::Attribute.add(
+        object: 'Ticket',
+        name: 'delete',
+        display: 'Test 18',
+        data_type: 'input',
+        data_option: {
+          maxlength: 200,
+          type: 'text',
+          null: false,
+        },
+        active: true,
+        screens: {},
+        position: 20,
+        created_by_id: 1,
+        updated_by_id: 1,
+      )
+    }
+    assert_equal(false, ObjectManager::Attribute.pending_migration?)
+
   end
 
   test 'b object manager attribute' do