Multiple named url defaults

[GoogleCodeExporter]

Currently only Model Menu options allow for default assignment of a parameter 
and in that case 
only one is permitted.

A new class should be introduced that allows for defaults to be assigned to 
both Model Menu 
options and to Named Url menu options.  There should be a one to many 
relationship between 
this new class and MenuOption with one MenuOption being allowed to have many 
defaults.

The defaults model should contain the following fields (other than the primary 
key) MenuOption, 
url_id, value, value_type.  value_type should be a choice field allowing the 
user to select from 
'constant' or 'model id'.  This choice should obviously be restricted for named 
url menu options 
as they will not have a model to work from. url_id should be unique for a given 
MenuOption

When it comes to generating the menu options anything specified in this 
defaults model will be 
used in preference over variables already gleaned from the current request url.

Finally a means of migrating from the current ModelMenuOptions will need to be 
implemented 
so that existing users will not lose any data when upgrading.

Original issue reported on code.google.com by greatlemer@gmail.com on 6 Aug 2009 at 1:32

[GoogleCodeExporter]

Need the custom backup/restore before this can be completed.

Original comment by greatlemer@gmail.com on 6 Aug 2009 at 1:37