Support ignoring certain rows

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/importer/management/commands/import.py

@@ -34,6 +34,11 @@ class Command(management.BaseCommand):
             help='Don\'t stop the import process on common errors like '
             'incorrect file paths.',
         )
+        parser.add_argument(
+            '--ignore_rows',
+            action='store', dest='ignore_rows', default='',
+            help='Ignore a set of rows. Row numbers must be separated by commas.'
+        )
         parser.add_argument(
             '--metadata_pairs_column',
             action='store', dest='metadata_pairs_column',
@@ -49,6 +54,10 @@ class Command(management.BaseCommand):
         document_types = {}
         uploaded_count = 0
         row_count = 0
+        rows_to_ignore = []
+        for entry in options['ignore_rows'].split(','):
+            if entry:
+                rows_to_ignore.append(int(entry))
 
         DocumentType = apps.get_model(
             app_label='documents', model_name='DocumentType'
@@ -64,7 +73,11 @@ class Command(management.BaseCommand):
             with open(options['filelist']) as csv_datafile:
                 csv_reader = csv.reader(csv_datafile)
                 for row in csv_reader:
+                    # Increase row count here even though start index is 0
+                    # purpose is to avoid losing row number increments on
+                    # exceptions
                     row_count = row_count + 1
+                    if row_count - 1 not in rows_to_ignore:
                         try:
                             with open(row[options['document_path_column']]) as file_object:
                                 document_type_label = row[options['document_type_column']]