I have made a new field in the model 'crm.lead'

Now when I make a chance I can select -> create new partner. and all the standard odoo fields like phone, email etc. will convert in the partner that creates.

How can I put the value in my new field in the partner the same way. I have made the same field in crm.lead and res.partner.

ok I have found the function:

def _lead_create_contact(self, cr, uid, lead, name, is_company, parent_id=False, context=None):
 partner = self.pool.get('res.partner')
 vals = {'name': name,            
'user_id': lead.user_id.id,           
 'comment': lead.description,            
'section_id': lead.section_id.id or False,            
'parent_id': parent_id,            
'phone': lead.phone,            
'mobile': lead.mobile,            
'email': tools.email_split(lead.email_from) and tools.email_split(lead.email_from)[0] or False,            
'fax': lead.fax,            
'title': lead.title and lead.title.id or False,            
'function': lead.function,            
'street': lead.street,            
'street2': lead.street2,            
'zip': lead.zip,            
'city': lead.city,            
'country_id': lead.country_id and lead.country_id.id or False,            
'state_id': lead.state_id and lead.state_id.id or False,            
'is_company': is_company,            
'type': 'contact'        }
 partner = partner.create(cr, uid, vals, context=context)
 return partner

Now How can  I add there a many2many field?

I found this on crm_lead.py:

CRM_LEAD_FIELDS_TO_MERGE = ['name',    
'partner_id',    
'campaign_id',    
'company_id',    
'country_id',    
'section_id',    
'state_id',    
'stage_id',    
'medium_id',    
'source_id',    
'user_id',    
'title',    
'city',    
'contact_name',    
'description',    
'email',    
'fax',    
'mobile',    
'partner_name',    
'phone',    
'probability',    
'planned_revenue',    
'street',    
'street2',    
'zip',    
'create_date',    
'date_action_last',    
'date_action_next',    
'email_from',    
'email_cc',    
'partner_name']

Have anyone a idea?

Thank you.