3 from manifold.manifoldresult import ManifoldResult
4 from manifold.manifoldapi import ManifoldAPI
9 # turn this on if you want to work offline
15 def __init__ (self, auth):
17 self.hash_by_object={}
20 offline_filename="offline-metadata.json"
23 with file(offline_metadata) as f:
24 self.hash_by_object=json.loads(f.read())
27 print "metadata.work_offline: failed to decode %s"%offline_filename
28 manifold_api = ManifoldAPI(self.auth)
29 fields = ['table', 'column.column',
30 'column.description','column.header', 'column.title',
31 'column.unit', 'column.info_type',
32 'column.resource_type', 'column.value_type',
33 'column.allowed_values', 'column.platforms.platform',
34 'column.platforms.platform_url']
35 rows_result = manifold_api.Get({
36 'object': 'local:object', # proposed to replace metadata:table
39 rows = rows_result.ok_value()
40 # API errors will be handled by the outer logic
42 # print "Failed to retrieve metadata",rows_result.error()
44 self.hash_by_object = dict ( [ (row['table'], row) for row in rows ] )
45 # save for next time we use offline mode
47 with file(offline_filename,'w') as f:
48 f.write(json.dumps(self.hash_by_object))
51 return json.dumps(self.hash_by_object)
53 def details_by_object (self, object):
54 return self.hash_by_object[object]
56 def sorted_fields_by_object (self, object):
57 return self.hash_by_object[object]['column'].sort()