I have some wizard opens when I click a button, this wizard insert some values ​​in the child model of the main model so I need to send some data from the main model to the wizard, but I am unable to pass the string value, other values I can pass with ids but not this char field. anyone 

name = fields.Char (string = "Title", required = True)
context : 'default_name':% s'  %self.name

when i include this name field , the function is not working too . someone help me here