def validate(self, value):
"""
Verify value can be iterated and cast elements to strings
Args:
value (iterable): value to be validated
Returns:
List of Strings or None if value is None
"""
if value is None:
return StringArray()
else:
return StringArray(value)
def set_required(self, required, notify=True):
"""Set the required string list"""
for r in required:
assert r in self.elements, \
"Expected one of %r, got %r" % (list(self.elements), r)
required = StringArray(deserialize_object(t, str_) for t in required)
self.set_endpoint_data("required", required, notify)
def validate(self, value):
"""
Verify value can be iterated and cast elements to choices
Args:
value(iterable): Value to be validated
Returns:
List of Choices or None if value is None
"""
if value is None:
return StringArray()
elif isinstance(value, str_):
raise ValueError("Expected iterable of strings, got %r" % value)
else:
for i, choice in enumerate(value):
if choice not in self.choices:
raise ValueError("%s is not a valid value for element %s" %
(choice, i))
return StringArray(value)
def append(self, row):
self.verify_column_lengths()
if len(row) != len(self.meta.elements):
raise ValueError(
"Row %s does not specify correct number of values" % row)
for e, v in zip(self.meta.elements, row):
column = getattr(self, e)
if isinstance(column, StringArray):
new_column = StringArray(column + (v, ))
else:
v = self.meta.elements[e].validate([v])
new_column = np.concatenate((column, v))
setattr(self, e, new_column)
def __setitem__(self, idx, row):
"""Set row for int, column for string"""
if isinstance(idx, int):
# set row from index
length = self.verify_column_lengths()
# Check length in range
if idx >= length:
raise IndexError("Index %s >= table length %s" % (idx, length))
if len(row) != len(self.meta.elements):
raise ValueError(
"Row %s does not specify correct number of values" % row)
for e, v in zip(self.meta.elements, row):
column = getattr(self, e)
if isinstance(column, StringArray):
new_column = StringArray(column[:idx] + (v, ) +
column[idx + 1:])
else:
# numpy array
v = self.meta.elements[e].validate([v])
new_column = np.concatenate(
(column[:idx], v, column[idx + 1:]))
setattr(self, e, new_column)
else:
setattr(self, idx, row)
def set_choices(self, choices, notify=True):
"""Set the choices list"""
choices = StringArray(deserialize_object(c, str_) for c in choices)
self.set_endpoint_data("choices", choices, notify)
def set_tags(self, tags, notify=True):
"""Set the tags list"""
tags = StringArray(deserialize_object(t, str_) for t in tags)
self.set_endpoint_data("tags", tags, notify)