Delete functions should not throw an error, if the ressource does not exists. -> Consider it as deleted if does not exist

app/corpora/background_functions.py

@@ -5,7 +5,9 @@ def delete_corpus_(app, corpus_id):
     with app.app_context():
         corpus = Corpus.query.get(corpus_id)
         if corpus is None:
-            raise Exception('Corpus {} not found!'.format(corpus_id))
+            # raise Exception('Corpus {} not found!'.format(corpus_id))
+            pass
+        else:
             corpus.delete()
 
 
@@ -13,7 +15,9 @@ def delete_corpus_file_(app, corpus_file_id):
     with app.app_context():
         corpus_file = CorpusFile.query.get(corpus_file_id)
         if corpus_file is None:
-            raise Exception('Corpus file {} not found!'.format(corpus_file_id))
+            # raise Exception('Corpus file {} not found!'.format(corpus_file_id))
+            pass
+        else:
             corpus_file.delete()
 
 
@@ -22,4 +26,5 @@ def edit_corpus_file_(app, corpus_file_id):
         corpus_file = CorpusFile.query.get(corpus_file_id)
         if corpus_file is None:
             raise Exception('Corpus file {} not found!'.format(corpus_file_id))
+        else:
             corpus_file.insert_metadata()