Source code for galaxy.util.dictifiable

import datetime
import uuid

[docs]class Dictifiable(object): """ Mixin that enables objects to be converted to dictionaries. This is useful when for sharing objects across boundaries, such as the API, tool scripts, and JavaScript code. """
[docs] def to_dict(self, view='collection', value_mapper=None): """ Return item dictionary. """ if not value_mapper: value_mapper = {} def get_value(key, item): """ Recursive helper function to get item values. """ # FIXME: why use exception here? Why not look for key in value_mapper # first and then default to to_dict? try: return item.to_dict(view=view, value_mapper=value_mapper) except Exception: if key in value_mapper: return value_mapper.get(key)(item) if type(item) == datetime.datetime: return item.isoformat() elif type(item) == uuid.UUID: return str(item) # Leaving this for future reference, though we may want a more # generic way to handle special type mappings going forward. # If the item is of a class that needs to be 'stringified' before being put into a JSON data structure # elif type(item) in []: # return str(item) return item # Create dict to represent item. rval = dict( model_class=self.__class__.__name__ ) # Fill item dict with visible keys. try: visible_keys = self.__getattribute__('dict_' + view + '_visible_keys') except AttributeError: raise Exception('Unknown Dictifiable view: %s' % view) for key in visible_keys: try: item = self.__getattribute__(key) if isinstance(item, list): rval[key] = [] for i in item: rval[key].append(get_value(key, i)) else: rval[key] = get_value(key, item) except AttributeError: rval[key] = None return rval