--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/iconolab_episteme/management/commands/importmetacategories.py	Tue Jun 26 15:55:08 2018 +0200
@@ -0,0 +1,90 @@
+# -*- coding: UTF-8 -*-
+import json
+import logging
+import os
+import pprint
+import re
+import shutil
+
+from django.conf import settings
+from django.core.management.base import BaseCommand, CommandError
+
+from iconolab.management.commands.importimages import BaseImportImagesCommand
+from iconolab.models import (Collection, Folder, Image, ImageStats, Item,
+                             ItemMetadata, MetaCategory)
+
+if settings.IMPORT_LOGGER_NAME and settings.LOGGING['loggers'].get(settings.IMPORT_LOGGER_NAME, ''):
+    logger = logging.getLogger(settings.IMPORT_LOGGER_NAME)
+else:
+    logger = logging.getLogger(__name__)
+
+class Command(BaseImportImagesCommand):
+    help = 'import metacategories files from a directory'
+
+    def add_arguments(self, parser):
+        parser.add_argument('source_dir')
+        parser.add_argument(
+            '--encoding',
+            dest='encoding',
+            default='utf-8',
+            help='JSON file encoding'
+
+        )
+        parser.add_argument(
+            '--collection-id',
+            dest='collection_id',
+            default=False,
+            help='insert extracted data into the specified collection instead of trying to load a collection fixture',
+        )
+        parser.add_argument(
+            '--metacategories-json',
+            dest='metacategories_json',
+            default=False,
+            help='add metacategories to the collection from a json file (json must be a list of object with "label" and "triggers_notifications" fields)',
+        )
+    
+    def handle(self, *args, **options):
+        
+        print('# Logging with logger '+logger.name)
+        logger.debug('# Initializing command with args: %r', options)
+
+        self.source_dir = options.get('source_dir')
+
+        if options.get('collection_id'):
+            print('## Finding collection with id ' + 
+                    options.get('collection_id'))
+            try:
+                collection = Collection.objects.get(
+                    pk=options.get('collection_id'))
+            except Collection.DoesNotExist:
+                raise ValueError('!!! Collection with primary key ' +
+                                    options.get('collection_id')+' was not found, aborting !!!')
+        else:
+            raise ValueError(
+                '!!! No collection fixture or collection id, aborting because we can\'t properly generate data. !!!')
+
+        if options.get('metacategories_json'):
+            print('## Finding metacategories fixture json data in '+self.source_dir)
+        metacategories_json_path = os.path.join(
+            self.source_dir, options.get('metacategories_json'))
+        if not os.path.isfile(metacategories_json_path):
+            print('### No '+options.get('metacategories_json')+
+                '.json file was found in the source directory')
+            raise ValueError(
+                '!!! Fixture file '+metacategories_json_path+' was not found !!!')
+        with open(metacategories_json_path) as metacategories_json_file:
+            metacategories_data = json.loads(
+                metacategories_json_file.read())
+            for metacategory in metacategories_data:
+                if metacategory.get('label', None) is None:
+                    raise ValueError(
+                        '!!! Metacategory without label !!!')
+
+        if options.get('metacategories_json'):
+            for metacategory in metacategories_data:
+                MetaCategory.objects.create(
+                    collection=collection,
+                    label=metacategory.get('label'),
+                    triggers_notifications=metacategory.get(
+                        'triggers_notifications', 0)
+                )
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