One module field use to other module in openerp - odoo

Question

I created a field name "link to opportunities" :-
module :- hr.applicant
field type:- many2many
object relation:- crm.lead
and i used in crm.lead module .
Now i want to use this field in "hr.recruitment" .
but i have tried many ways but not success. please tell me. how can use this field in other module like as crm.lead to hr.recruitment
thank you for your timing.
this code i used:-
'sale_o_ids' : fields.related('job_id', 'x_link_to_jobposition',
readonly=True,
relation='crm.lead',
string='Opportunity Name'),

Answer 1

Here is the example:
of many2many
class hr_job(osv.osv):
_inherit = 'hr.job'
_columns = {
'sale_ids': fields.many2many('sale.order', 'hr_job_sale_order_rel', 'job_id', 'sale_id', 'Sale order'),
}
hr_job()
Here created a many2many field of sale.order
Now i want to used the hr.job field in hr.employee.
class hr_employee(osv.osv):
_inherit = "hr.employee"
def _get_sale_order(self, cr, uid, ids, field_name, arg, context=None):
if context is None:
context = {}
result = {}
list_o = []
for order in self.browse(cr, uid, ids, context=context):
for i in order.job_id.sale_ids:
list_o.append(i.id)
result[order.id] = list_o
return result
_columns = {
'sale_order_ids': fields.function(_get_sale_order, type='many2many', relation="sale.order", string="Sale Orders"),
}
hr_employee()
So when you update in the hr.job many2many field then its updated value show in hr.employee object when in job select this job
Another method you can use related
'sale_o_ids' : fields.related('job_id', 'sale_ids',
type='many2many',
readonly=True,
relation='sale.order',
string='Available Sale Order'),
Hope this thing clear to you