Defaulting pc_prop to nil to allow switching between prop types

2 files changed, 2 insertions, 2 deletions

diff --git a/lib/model.rb b/lib/model.rb
index c362b68..5f80808 100644
--- a/lib/model.rb
+++ b/lib/model.rb
@@ -130,7 +130,7 @@ module OpenTox
         @min_sim = 0.3
         @prop_kernel = false
         @conf_stdev = false
-        @pc_type = "electronic"
+        @pc_type = nil
 
       end
 
diff --git a/lib/utils.rb b/lib/utils.rb
index 867903e..f742fcc 100644
--- a/lib/utils.rb
+++ b/lib/utils.rb
@@ -159,7 +159,7 @@ module OpenTox
         ambit_ds_service_uri = "http://apps.ideaconsult.net:8080/ambit2/dataset/"
         descs = YAML::load_file( File.join(ENV['HOME'], ".opentox", "config", "ambit_descriptors.yaml") )
         descs_uris = []
-        params[:pc_type] = "electronic" if params[:pc_type].nil?
+        params[:pc_type] = "electronic" if params[:pc_type].nil? # rescue missing pc_type
         descs.each { |uri, cat_name| 
           if cat_name[:category] == params[:pc_type]
             descs_uris << uri