--- a/qiime2/qiime_sample-classifier_classify-samples-ncv.xml	Wed Jul 17 01:53:11 2019 -0400
+++ b/qiime2/qiime_sample-classifier_classify-samples-ncv.xml	Tue Aug 13 07:40:25 2019 -0400
@@ -10,18 +10,14 @@
 --i-table=$itable
 --m-metadata-column="$mmetadatacolumn"
 
-#if $input_files_mmetadatafile:
-#def list_dict_to_string(list_dict):
-	#set $file_list = list_dict[0]['additional_input'].__getattr__('file_name')
-	#for d in list_dict[1:]:
-		#set $file_list = $file_list + ' --m-metadata-file=' + d['additional_input'].__getattr__('file_name')
-	#end for
-	#return $file_list
-#end def
- --m-metadata-file=$list_dict_to_string($input_files_mmetadatafile)
+
+
+#if $metadatafile:
+ --m-metadata-file=$metadatafile
 #end if
 
-#if $pcv:
+
+#if str($pcv):
  --p-cv=$pcv
 #end if
 
@@ -36,7 +32,7 @@
 #end if
 
 
-#if $pnestimators:
+#if str($pnestimators):
  --p-n-estimators=$pnestimators
 #end if
 
@@ -81,9 +77,8 @@
 			<option value="ignore">ignore</option>
 		</param>
 
-		<repeat name="input_files_mmetadatafile" optional="True" title="--m-metadata-file">
-			<param label="--m-metadata-file: Metadata file or artifact viewable as metadata. This option may be supplied multiple times to merge metadata. [optional]" name="additional_input" type="data" format="tabular,qza,no_unzip.zip" />
-		</repeat>
+		<param label="--m-metadata-file METADATA" name="metadatafile" type="data" format="tabular,qza,no_unzip.zip" />
+
 	</inputs>
 	<outputs>
 		<data format="qza" label="${tool.name} on ${on_string}: predictions.qza" name="opredictions"/>