import json
+import os.path
from manifold.manifoldresult import ManifoldResult
from manifold.manifoldapi import ManifoldAPI
-debug=False
-debug=True
+from django.contrib import messages
-# turn this on if you want to work offline
-work_offline=False
-#work_offline=True
+debug=False
+#debug=True
class MetaData:
self.auth=auth
self.hash_by_object={}
- def fetch (self):
- offline_filename="offline-metadata.json"
- if work_offline:
- try:
- with file(offline_metadata) as f:
- self.hash_by_object=json.loads(f.read())
- return
- except:
- print "metadata.work_offline: failed to decode %s"%offline_filename
+ def fetch (self, request):
manifold_api = ManifoldAPI(self.auth)
- fields = ['table', 'column.column',
- 'column.description','column.header', 'column.title',
- 'column.unit', 'column.info_type',
- 'column.resource_type', 'column.value_type',
- 'column.allowed_values', 'column.platforms.platform',
- 'column.platforms.platform_url']
- rows_result = manifold_api.Get({
- 'object': 'local:object', # proposed to replace metadata:table
- 'fields': fields
- })
- rows = rows_result.ok_value()
+ fields = ['table', 'column.name', 'column.qualifier', 'column.type',
+ 'column.is_array', 'column.description', 'column.default', 'key', 'capability']
+ #fields = ['table', 'column.column',
+ # 'column.description','column.header', 'column.title',
+ # 'column.unit', 'column.info_type',
+ # 'column.resource_type', 'column.value_type',
+ # 'column.allowed_values', 'column.platforms.platform',
+ # 'column.platforms.platform_url']
+ request={ 'action': 'get',
+ 'object': 'local:object', # proposed to replace metadata:table
+ 'fields': fields ,
+ }
+ result = manifold_api.forward(request)
+
+ # xxx need a way to export error messages to the UI
+ if result['code'] == 1: # warning
+ # messages.warning(request, result['description'])
+ print ("METADATA WARNING -",request,result['description'])
+ elif result['code'] == 2:
+ # messages.error(request, result['description'])
+ print ("METADATA ERROR -",request,result['description'])
+ # XXX FAIL HERE XXX
+ return
+
+ rows = result.ok_value()
# API errors will be handled by the outer logic
# if not rows:
# print "Failed to retrieve metadata",rows_result.error()
# rows=[]
self.hash_by_object = dict ( [ (row['table'], row) for row in rows ] )
- # save for next time we use offline mode
- if debug and rows:
- with file(offline_filename,'w') as f:
- f.write(json.dumps(self.hash_by_object))
def to_json(self):
return json.dumps(self.hash_by_object)
return self.hash_by_object[object]
def sorted_fields_by_object (self, object):
- return self.hash_by_object[object]['columns'].sort()
+ return self.hash_by_object[object]['column'].sort()
+
+ def get_field_type(self, object, field):
+ if debug: print "Temp fix for metadata::get_field_type() -> consider moving to manifold.core.metadata soon"
+ return field