# $Id$
+# $URL$
from types import StringTypes, IntType, LongType
import time
import calendar
return dict ( [ (key,value) for (key,value) in obj.iteritems()
if key in self.tags and Row.is_writable(key,value,self.tags) ] )
- # takes in input a list of columns, returns 2 dicts and one list
- # fields, tags, rejected
+ # takes as input a list of columns, sort native fields from tags
+ # returns 2 dicts and one list : fields, tags, rejected
@classmethod
def parse_columns (cls, columns):
(fields,tags,rejected)=({},{},[])
else: rejected.append(column)
return (fields,tags,rejected)
+ # compute the 'accepts' part of a method, from a list of column names, and a fields dict
+ # use exclude=True to exclude the column names instead
+ # typically accepted_fields (Node.fields,['hostname','model',...])
+ @staticmethod
+ def accepted_fields (update_columns, fields_dict, exclude=False):
+ result={}
+ for (k,v) in fields_dict.iteritems():
+ if (not exclude and k in update_columns) or (exclude and k not in update_columns):
+ result[k]=v
+ return result
+
+ # filter out user-provided fields that are not part of the declared acceptance list
+ # keep it separate from split_fields for simplicity
+ # typically check_fields (<user_provided_dict>,{'hostname':Parameter(str,...),'model':Parameter(..)...})
+ @staticmethod
+ def check_fields (user_dict, accepted_fields):
+# avoid the simple, but silent, version
+# return dict ([ (k,v) for (k,v) in user_dict.items() if k in accepted_fields ])
+ result={}
+ for (k,v) in user_dict.items():
+ if k in accepted_fields: result[k]=v
+ else: raise PLCInvalidArgument ('Trying to set/change unaccepted key %s'%k)
+ return result
+
# given a dict (typically passed to an Update method), we check and sort
# them against a list of dicts, e.g. [Node.fields, Node.related_fields]
# return is a list that contains n+1 dicts, last one has the rejected fields
result.append(rejected)
return result
- # compute the accepts part of an update method from a list of column names, and a (list of) fields dict
- @staticmethod
- def accepted_fields (can_update_columns, fields):
- result={}
- if not isinstance(fields,list): fields = [fields]
- for dict in fields:
- for (k,v) in dict.iteritems():
- if k in can_update_columns:
- result[k]=v
- return result
-
### class initialization : create tag-dependent cross view if needed
@classmethod
def tagvalue_view_name (cls, tagname):