Ejemplo n.º 1
0
    def __new__(cls, name, bases, attrs):
        formfield_callback = attrs.pop('formfield_callback',
                                       lambda f: f.formfield())
        try:
            parents = [b for b in bases if issubclass(b, ModelForm)]
        except NameError:
            # We are defining ModelForm itself.
            parents = None
        declared_fields = get_declared_fields(bases, attrs, False)
        new_class = super(ModelFormMetaclass,
                          cls).__new__(cls, name, bases, attrs)
        if not parents:
            return new_class

        if 'media' not in attrs:
            new_class.media = media_property(new_class)
        opts = new_class._meta = ModelFormOptions(
            getattr(new_class, 'Meta', None))
        if opts.model:
            # If a model is defined, extract form fields from it.
            fields = fields_for_model(opts.model, opts.fields, opts.exclude,
                                      formfield_callback)
            # Override default model fields with any custom declared ones
            # (plus, include all the other declared fields).
            fields.update(declared_fields)
        else:
            fields = declared_fields
        new_class.declared_fields = declared_fields
        new_class.base_fields = fields
        return new_class
Ejemplo n.º 2
0
    def __new__(cls, name, bases, attrs):
        formfield_callback = attrs.pop('formfield_callback',
                lambda f: f.formfield())
        try:
            parents = [b for b in bases if issubclass(b, ModelForm)]
        except NameError:
            # We are defining ModelForm itself.
            parents = None
        declared_fields = get_declared_fields(bases, attrs, False)
        new_class = super(ModelFormMetaclass, cls).__new__(cls, name, bases,
                attrs)
        if not parents:
            return new_class

        if 'media' not in attrs:
            new_class.media = media_property(new_class)
        opts = new_class._meta = ModelFormOptions(getattr(new_class, 'Meta', None))
        if opts.model:
            # If a model is defined, extract form fields from it.
            fields = fields_for_model(opts.model, opts.fields,
                                      opts.exclude, formfield_callback)
            # Override default model fields with any custom declared ones
            # (plus, include all the other declared fields).
            fields.update(declared_fields)
        else:
            fields = declared_fields
        new_class.declared_fields = declared_fields
        new_class.base_fields = fields
        return new_class
Ejemplo n.º 3
0
 def new(name, bases, attrs):
     # get_declared_fields can only be called once, the result will be wrong
     # if you call it again. We call it first to hold the correct result.
     fields = nmodels.get_declared_fields(bases, attrs, True)
     newclass = factory(name, bases, attrs)
     # Restore the correct result.
     newclass.base_fields = fields
     return newclass