Django datetimefield not validating
If you want to be able to modify this field, set the following instead of may also be a callable, such as a function.This will be called to obtain the upload path, including the filename.For example, if you blindly let somebody upload files, without validation, to a directory that’s within your Web server’s document root, then somebody could upload a CGI or PHP script and execute that script by visiting its URL on your site. Also note that even an uploaded HTML file, since it can be executed by the browser (though not by the server), can pose security threats that are equivalent to XSS or CSRF attacks. Since the underlying file is opened implicitly when accessing it, it may be unnecessary to call this method except to reset the pointer to the underlying file or to change the This method takes a filename and file contents and passes them to the storage class for the field, then associates the stored file with the model field. Note that when a model is deleted, related files are not deleted. You may want to avoid the overhead of an index if you are creating a foreign key for consistency rather than joins, or if you will be creating an alternative index like a partial or multiple column index.If you need to cleanup orphaned files, you’ll need to handle it yourself (for instance, with a custom management command that can be run manually or scheduled to run periodically via e.g. , it will be invoked every time a new form is instantiated.Widgets deal with rendering of HTML form input elements on the web page and extraction of raw submitted data.
If this isn’t given, Django will use the field’s name.
If your database column name is an SQL reserved word, or contains characters that aren’t allowed in Python variable names – notably, the hyphen – that’s OK.
Django quotes column and table names behind the scenes.
Override this method in custom widgets that aren’t compatible with browser validation.
For example, a WSYSIWG text editor widget backed by a hidden This method takes a single “compressed” value from the field and returns a list of “decompressed” values.Also, you can easily and the default form widget will be a select box with these choices instead of the standard text field.