Hello Community...!!!

Currently, I am Working on POS Customization. I've done almost but stuck in this issue. 

Py File:

class prescription(osv.osv):

_name = 'res.prescriptions'

_columns={

'prescription_id':fields.many2one('res.partner',"customer"),

}

class prescription_res_partner(osv.osv):

_inherit = 'res.partner'

_columns = {

'prescriptions_ids': fields.one2many('res.prescriptions','prescription_id','Prescriptions'),

}

What I would like to do, is that when the user select customer in POS, and click on Prescription Button, it shows only prescriptions that are related to particular selected customer.. For now, it displays all prescriptions as I am not able to set correctly the filter domain. Also.....

i've tried to solve my problem using .query(), .filter() in JS. but getting some errors, while if i put static partner_id then it will display prescriptions for given static partner_id. I want to solve this for dynamic partners. it shows only selected partner's prescriptions...!!!

In JS File: 

var def = new $.Deferred();

console.log("deffffffffffffff", def);

var fields = _.find(this.models,function(model){ return model.model === 'res.prescriptions'; });

new instance.web.Model('res.prescriptions')

.query(fields)

.filter([['prescription_id', '=', 51]]) // Here i pass static partner_id instead of this i want to pass dynamic partner_id

.limit(1000)

.all()

.then(function(prescriptions){

if (self.render_list_prescription(prescriptions)) { // Render selected partner's Prescription

def.resolve();

} else {

def.reject();

}

}, function(err,event){ event.preventDefault(); def.reject(); });

return def;

i've spend almost 3 days to overcome this problem but failed to Deliver it. please help me out from this. Again Many Thanks for your help..!!!