plugin.py

class PartnerGroupClass(plugins.SingletonPlugin, DefaultGroupForm):             
    plugins.implements(plugins.IGroupForm, inherit=True)                                    
                                                                                   
    ## IGroupForm                                                                  
    def is_fallback(self):                                                         
        return True                                                                
                                                                                   
    def group_types(self):                                                         
        return ['organization']                                                    
                                                                                   
    def _modify_schema(self, schema):                                              
        schema.update({                                                            
            'ilri_partner': [tk.get_converter('convert_to_extras'),                
                tk.get_validator('ignore_missing')],                               
            })                                                                     
        return schema                                                              
                                                                                   
    def form_to_db_schema(self):                                                   
        schema = super(PartnerGroupClass, self).form_to_db_schema()                
        schema = self._modify_schema(schema)                                       
        return schema

    def form_to_db_schema_api_create(self):                                     
        schema = super(PartnerGroupClass, self).form_to_db_schema_api_create()  
        schema = self._modify_schema(schema)                                    
        return schema                                                           
                                                                                
    def form_to_db_schema_api_update(self):                                     
        schema = super(PartnerGroupClass, self).form_to_db_schema_api_update()  
        schema = self._modify_schema(schema)                                    
        return schema                                                           
                                                                                
    def db_to_form_schema(self):                                                
        _not_empty = tk.get_validator('not_empty')                              
        schema = super(PartnerGroupClass, self).form_to_db_schema()             
        schema.update({                                                         
            'ilri_partner': [tk.get_converter('convert_from_extras'),           
                tk.get_validator('ignore_missing')],                            
            #TODO: this should be handled in core                               
            'num_followers': [_not_empty],                                      
            'package_count': [_not_empty],                                      
        })                                                                      
        return schema