Hi.
I'm trying to override the defaults of an text field in an subclass. I
thought i could accomplish that by the following code, but
models.TextField(default = default('flags')... wouldn't find default
(). I cant reference it by self.__class__.default() as the is no self
at the field initialization. Im kind of stuck ...
Thank you for your help!
class Compiler(Model):
class Meta(Checker.Meta):
abstract = True
# default values for the model fields
defaults = {
'flags' : "-Wall -static",
'output_flags' : "-o %s",
'libs' : "",
'file_pattern' : r"^[a-zA-Z0-9_]*$" #
Regular expression
describing all source files to be passed to the compiler.
}
def default(key):
""" By making the model field defaults a callable instead of an
value it will be called every time a new object is created wich will
allow for altered defaults in subclasses. """
return defaults[key]
_flags = models.TextField(default = default('flags'),
help_text = _
('Compiler flags'))
_output_flags = models.TextField(default = default('output_flags'),
help_text = _('Output flags'))
_libs = models.TextField(default = default('libs'),
help_text = _
('Compiler libraries'))
class CXXBuilder(compiler):
""" A C++ compiler for construction. """
# override configuration
_compiler = "c++"
_language = "C++"
# override default values for the model fields
defaults['flags'] = "-Wall",
defaults['output_flags'] = ""
defaults['file_pattern'] =
r"^[a-zA-Z0-9_]*\.(c|C|cc|CC|cxx|CXX|c\+\+|
C\+\+|cpp|CPP)$"
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