def cleanup(json):
"""
Remove all missing values. Sometimes its useful for object methods
to return missing value in order to not include that value in the
json format.
Examples::
>>> User(BourneMixin):
... def attributes():
... return ['id', 'name', 'birthday', 'somefunc']
... def age():
... if birthday:
... return empty
... else:
... return calc_age(self.birthday)
Now if some user has birthday the age function is going to return the age.
However if user doesn't have birthday the age function is returning a
special empty value which tells jsonifier not to include that key in
json format.
>>> User(id=1, name='someone').as_json()
{'id': 1, 'name': 'Someone'}
"""
return dict(filter(lambda a: a[1] is not empty, json.items()))
def _do_create_from_json(cls,
json,
parse_def,
context,
duplicate_handling=None,
object_importer=None):
# Special case for JSON-LD
added = False
ls = cls()
def guess_lang(value):
from .discussion import Discussion
discussion = context.get_instance_of_class(Discussion)
if discussion:
tr_service = discussion.translation_service()
lang, _ = tr_service.identify(value)
return LocaleLabel.UNDEFINED
if isinstance(json, list):
for entry_record in json:
value = entry_record['@value']
if value:
added = True
lang = entry_record.get('@language',
None) or guess_lang(value)
ls.add_value(value, lang)
elif isinstance(json, dict):
if '@id' in json or '@type' in json:
return super(LangString,
cls)._do_create_from_json(json, parse_def,
context,
duplicate_handling,
object_importer)
elif '@value' in json:
value = json['@value']
if value:
added = True
lang = json.get('@language', None) or guess_lang(value)
ls.add_value(value, lang)
else:
for lang, value in json.items():
if value:
added = True
ls.add_value(value, lang)
elif isinstance(json, string_types):
if json:
added = True
lang = guess_lang(json)
ls.add_value(json, lang)
else:
raise ValueError("Not a valid langstring: " + json)
i_context = ls.get_instance_context(context)
if added:
cls.default_db.add(ls)
else:
i_context._instance = None
return i_context
def _do_update_from_json(
self, json, parse_def, context,
duplicate_handling=None, object_importer=None):
for key, value in json.items():
if key == '@id':
if value != self.uri():
raise RuntimeError("Wrong id")
else:
self[key] = value
return self
def JsonToSortedTab(self, json):
strTab = []
outTab = []
for v, k in json.items():
strTab.append(int(v))
strTab.append(k)
outTab.append(strTab)
strTab = []
outTab.sort(key=lambda x: x[0])
return outTab
def _do_update_from_json(self,
json,
parse_def,
context,
duplicate_handling=None,
object_importer=None):
# Special case for JSON-LD
if isinstance(json, list):
for entry_record in json:
lang = entry_record.get('@language', LocaleLabel.UNDEFINED)
value = entry_record['@value']
entry = self.entries_as_dict.get(lang, None)
if entry:
entry.set_value(value)
elif value:
self.add_value(value, lang)
elif isinstance(json, dict):
if '@id' in json or '@type' in json:
return super(LangString, self)._do_update_from_json(
json, parse_def, context, duplicate_handling,
object_importer)
elif '@value' in json:
value = json['@value']
if value:
lang = json.get('@language', LocaleLabel.UNDEFINED)
entry = self.entries_as_dict.get(lang, None)
if entry:
entry.set_value(value)
elif value:
self.add_value(value, lang)
else:
for lang, value in json.items():
entry = self.entries_as_dict.get(lang, None)
if entry:
entry.set_value(value)
elif value:
self.add_value(value, lang)
elif isinstance(json, string_types):
from .discussion import Discussion
lang = LocaleLabel.UNDEFINED
discussion = context.get_instance_of_class(Discussion)
if discussion:
tr_service = discussion.translation_service()
lang, _ = tr_service.identify(json)
entry = self.entries_as_dict.get(lang, None)
if entry:
entry.set_value(json)
elif json:
self.add_value(json, lang)
else:
raise ValueError("Not a valid langstring: " + json)
return self
def _simplify_json(self, json):
result = {}
# First, resolve references
for element in json.values():
for k,v in element.items():
if isinstance(v, unicode) and v.startswith("http://") and json.has_key(v):
element[k] = json[v]
for k, v in json.items():
if v.has_key("_typeGroup"):
group = v["_typeGroup"]
if not result.has_key(group):
result[group]=[]
del v["_typeGroup"]
v["__reference"] = k
result[group].append(v)
return result
def _simplify_json(self, json):
result = {}
# First, resolve references
for element in json.values():
for k,v in element.items():
if isinstance(v, unicode) and v.startswith("http://") and json.has_key(v):
element[k] = json[v]
for k, v in json.items():
if v.has_key("_typeGroup"):
group = v["_typeGroup"]
if not result.has_key(group):
result[group]=[]
del v["_typeGroup"]
v["__reference"] = k
result[group].append(v)
return result
def _simplify_json(self, json):
result = {}
# First, resolve references
for element in json.values():
for k,v in element.items():
if isinstance(v, str) and v.startswith("http://") and v in json:
element[k] = json[v]
for k, v in json.items():
if "_typeGroup" in v:
group = v["_typeGroup"]
if not group in result:
result[group]=[]
del v["_typeGroup"]
v["__reference"] = k
result[group].append(v)
return result
def _fix_json(self, check_fun, mod_fun, json):
if isinstance(json, dict):
d = {}
for k, v in json.items():
w = self._fix_json(check_fun, mod_fun, v)
if check_fun(k, w):
d[k] = w
return d
if isinstance(json, list):
l = []
for v in json:
w = self._fix_json(check_fun, mod_fun, v)
if w:
l.append(w)
return l
return mod_fun(json)
def json2xml(self, json):
string = ""
for k, v in json.items():
string = string + "<%s>" % (k) + str(v) + "</%s>" % (k)
return string
def json2xml(self, json):
string = ""
for k, v in json.items():
string = string + "<%s>" % (k) + str(v) + "</%s>" % (k)
return string
