-# handles decimal numbers serialization in json
-class DecimalEncoder(json.JSONEncoder):
- def _iterencode(self, o, markers=None):
- if isinstance(o, decimal.Decimal):
- return (str(o) for o in [o])
- return super(DecimalEncoder, self)._iterencode(o, markers)
-
-class objectRequest(object):
-
- def __init__(self, request, object_type, object_name):
- self.type = object_type
- self.name = object_name
- # No params in delete
- self.properties = []
- self.filters = {}
- self.options = None
-
- self.request = request
-
- # What about key formed of multiple fields???
- query = Query.get('local:object').filter_by('table', '==', self.type).select('key')
- results = execute_query(self.request, query)
- print "key of object = %s" % results
- if results :
- for r in results[0]['key'] :
- self.id = r
- else :
- return error('Manifold db error')
-
- query = Query.get('local:object').filter_by('table', '==', self.type).select('column.name')
- results = execute_query(self.request, query)
- if results :
- for r in results[0]['column'] :
- self.properties.append(r['name'])
- else :
- return error('Manifold db error')
-
- def addFilters(self, properties):
- selected_properties = []
- for p in properties :
- if p in self.properties :
- selected_properties.append(p)
- self.properties = selected_properties
- self.setId()
-
- def setId(self):
- if self.id in self.properties :
- self.properties.remove(self.id)
- [self.id].extend(self.properties)
-
- def execute(self):
- query = Query.delete(self.type)
- if self.filters :
- for k, f in self.filters.iteritems() :
- if (f[:1] == "!") :
- query.filter_by(k, '!=', f[1:])
- elif (f[:2] == ">=") :
- query.filter_by(k, '>=', f[2:])
- elif (f[:1] == ">") :
- query.filter_by(k, '>', f[1:])
- elif (f[:2] == "<=") :
- query.filter_by(k, '<=', f[2:])
- elif (f[:1] == "<") :
- query.filter_by(k, '<', f[1:])
- else :
- query.filter_by(k, '==', f)
- else:
- raise Exception, "Filters are required for delete"
- return execute_query(self.request, query)