4 from manifold.manifoldresult import ManifoldResult
5 from manifold.manifoldapi import ManifoldAPI
7 from django.contrib import messages
12 # turn this on if you want to work offline
18 def __init__ (self, auth):
20 self.hash_by_object={}
22 def fetch (self, request):
23 offline_filename="%s/../offline-metadata.json"%os.path.dirname(__file__)
26 with file(offline_metadata) as f:
27 self.hash_by_object=json.loads(f.read())
30 print "metadata.work_offline: failed to decode %s"%offline_filename
31 manifold_api = ManifoldAPI(self.auth)
32 fields = ['table', 'column.name', 'column.qualifier', 'column.type', 'column.is_array', 'column.description', 'column.default', 'key', 'capability']
33 #fields = ['table', 'column.column',
34 # 'column.description','column.header', 'column.title',
35 # 'column.unit', 'column.info_type',
36 # 'column.resource_type', 'column.value_type',
37 # 'column.allowed_values', 'column.platforms.platform',
38 # 'column.platforms.platform_url']
39 result = manifold_api.forward({
41 'object': 'local:object', # proposed to replace metadata:table
45 if result['code'] == 1: # warning
46 messages.warning(request, result['description'])
47 elif result['code'] == 2:
48 messages.error(request, result['description'])
51 rows = result.ok_value()
52 # API errors will be handled by the outer logic
54 # print "Failed to retrieve metadata",rows_result.error()
56 self.hash_by_object = dict ( [ (row['table'], row) for row in rows ] )
57 # save for next time we use offline mode
59 with file(offline_filename,'w') as f:
60 f.write(json.dumps(self.hash_by_object))
63 return json.dumps(self.hash_by_object)
65 def details_by_object (self, object):
66 return self.hash_by_object[object]
68 def sorted_fields_by_object (self, object):
69 return self.hash_by_object[object]['column'].sort()
71 def get_field_type(self, object, field):
72 print "Temp fix for metadata::get_field_type() -> consider moving to manifold.core.metadata soon"