how Custom module fields accessible in other modules odoo v10

Question

I want to get the fields  (customer_site_name , customer_site_Address , city) of "sites" module in my "saleorder" module. how i can achieve it.
my modules are given below,
----------Site (Custom Module)---------------
class sites(models.Model):     _name = 'sites.sites'      customer_site_name = fields.Char('Site Name')      customer_site_Address = fields.Char('Site Address')      city = fields.Char()
-----------Sales Module ----------------
class SaleOrder(models.Model):     _name = "sale.order

Fawad Mazhar · Answer

Sites and saleoder are not linked i just want to select the Sites things in saleorder tree grid like this,
Site A Name  (selection), Site A Address , Site B Name (selection)  , Site B Address , Link(text)

when i select Site  Site A Name its address will show in Site A Address same will be for Site B and I will input the text in link
thats my senairo.

Denis Baranov · Answer

Hi,
how 'Sites' and 'Sale Order' are linked? Would you like to have some reference from an order to sites? If so:
class SaleOrder(models.Model):
_inherit = "sale.order"
sites_id = fields.Many2one("sites.sites") Then, if you want to show a field of Sites in an Order, use the 'related' attribute:
customer_site_name = fields.Char(related="sites_id.customer_site_name")

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