def code_new_instance_varname(classname, attr, value):
"""
``fruit_id____1 = Fruit(id=1, name='Apple')`` 中 ``fruit_id____1`` 部分。
"""
code = "{var}_{attr}____{value}".format(
var=name_convention.to_variable_name(classname),
attr=attr,
value=name_convention.to_index_key(value),
)
return code
def __init__(self,
classname=None,
attrs=None,
keys=None,
data=None,
collection=None,
inherit_from="Base",
parent=None,
indent=0,
**kwargs):
self.classname = classname
self.attrs = attrs
self.keys = keys
self.data = data
self.collection = collection
self.inherit_from = inherit_from
self.parent = parent
self.indent = indent
if (self.classname is not None) and \
(self.attrs is not None) and \
(self.keys is not None) and \
(self.collection is not None):
self.IS_COLLECTION = True
# validate classname
if not name_convention.is_valid_class_name(self.classname):
raise ValidationError("%r is not a valid class name" %
self.classname)
# validate attrs
for attr in self.attrs:
if not name_convention.is_valid_variable_name(attr):
raise ValidationError("%r is not a valid attribute name" %
attr)
# validate keys
for key in self.keys:
if not name_convention.is_valid_variable_name(key):
raise ValidationError("%r is not a valid attribute name" %
key)
# validate attrs and keys
if set.union(set(self.attrs), set(self.keys)) != set(self.attrs):
raise ValidationError(
"keys (%r) has to be subset of attrs (%r)" %
(self.keys, self.attrs))
# validate attrs and data
for metadata in self.collection:
for attr, value in metadata["data"].items():
try:
assert attr in self.attrs
except:
msg = "{classname}.__attrs__ = {attrs!r} doesn't match: {data!r}!".format(
classname=self.classname,
attrs=self.attrs,
data=metadata["data"],
)
raise ValidationError(msg)
self.classnameCol = self.classname + "Col"
self.variable_name_col = name_convention.to_variable_name(
self.classname) + "_col"
self.kwargs_text = "".join([", %s=None" % attr for attr in attrs])
self.variable_name = name_convention.to_variable_name(
self.classname)
# 2 more indent for nested ClassDef
self.collection = [
ClassDef(indent=self.indent + 2,
inherit_from=self.classname,
parent=self,
**metadata) for metadata in self.collection
]
elif (self.classname is None) and \
(self.attrs is None) and \
(self.keys is None) and \
(self.collection is None) and \
(self.data is not None):
self.IS_COLLECTION = False
self.classnameCol = self.parent.classname