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A less convoluted and robust way to expand the context as variables

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This commit is contained in:
Fabio Manganiello 2018-06-06 17:14:44 +02:00
parent 9984b75895
commit 850a4f2146
2 changed files with 20 additions and 33 deletions
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50
platypush/message/request/__init__.py
View file

@ -100,6 +100,9 @@ class Request(Message):
@classmethod
def expand_value_from_context(cls, value, **context):
for (k, v) in context.items():
exec('{}={}'.format(k, v))
parsed_value = ''
while value:
m = re.match('([^\$]*)(\${\s*(.+?)\s*})(.*)', value)
@ -107,41 +110,22 @@ class Request(Message):
prefix = m.group(1); expr = m.group(2);
inner_expr = m.group(3); value = m.group(4)
m = re.match('([^.\[\]()]+)(.*)', inner_expr)
context_argname = m.group(1)
path = m.group(2)
try:
context_value = eval(inner_expr)
if context_argname in context:
try:
try:
context_value = eval("context['{}']{}".format(
context_argname, path if path else ''))
except:
context_value = eval(inner_expr)
if callable(context_value):
context_value = context_value()
if isinstance(context_value, datetime.date):
context_value = context_value.isoformat()
except Exception as e:
logging.exception(e)
context_value = expr
if callable(context_value):
context_value = context_value()
if isinstance(context_value, datetime.date):
context_value = context_value.isoformat()
except Exception as e:
logging.exception(e)
context_value = expr
parsed_value += prefix + (
json.dumps(context_value)
if isinstance(context_value, list)
or isinstance(context_value, dict)
else str(context_value))
else:
try:
expanded_expr = eval(inner_expr)
parsed_value += prefix
if expanded_expr is not None:
parsed_value += expanded_expr
except Exception as e:
logging.exception(e)
parsed_value += prefix + expr
parsed_value += prefix + (
json.dumps(context_value)
if isinstance(context_value, list)
or isinstance(context_value, dict)
else str(context_value))
else:
parsed_value += value
value = ''

3
platypush/procedure/__init__.py
View file

@ -210,6 +210,9 @@ class IfProcedure(Procedure):
def execute(self, **context):
for (k, v) in context.items():
exec('{}={}'.format(k, v))
condition_true = eval(self.condition)
response = Response()