widgets.py 文件源码

def render(self, name, value, attrs=None):
        if value is None:
            value = ""
        if VERSION < (1, 11):
            final_attrs = self.build_attrs(attrs, name=name)
        else:
            final_attrs = self.build_attrs(attrs, {'name': name})
        final_attrs = self.build_attrs(final_attrs, self.attrs)
        if "class" not in final_attrs:
            final_attrs["class"] = ""
        final_attrs["class"] += " wmd-input"
        template = loader.get_template(self.template)

        # Compatibility fix:
        # see https://github.com/timmyomahony/django-pagedown/issues/42
        context = {
            "attrs": flatatt(final_attrs),
            "body": conditional_escape(force_unicode(value)),
            "id": final_attrs["id"],
            "show_preview": self.show_preview,
        }
        context = Context(context) if VERSION < (1, 9) else context
        return template.render(context)