domain="[('product_id', '=', self.product_id)]"

this domain set as string so view don't have self so remove "" from domain and do like

domain= [('product_id', '=', self.product_id)]

Thank you

Hi,

Make proper indentation and Change 'product_id' field with relation 'product.product'. Like below :

 product_id = fields.Many2one('product.product')

@api.multi    
def generate_purchase_history(self):
    action = self.env.ref('purchase.action_purchase_line_product_tree')
    domain=[('product_id', '=', self.product_id)]        
    return {                
            'name': action.name,
            'help': action.help,
            'type': action.type,
            'view_type': action.view_type,
            'view_mode': action.view_mode,
            'target': action.target,
            'res_model': action.res_model,
            'domain': domain            
            }	

Jithin

It seems that syntax of domain is wrong, you can define like

domain = [('product_id.id', '=', self.product_id.id)]

one more thing, put your code inside the method.

Thank You.

Hello Jithin,

In purchase order line, product's object is product.product and you taken here product.template

Try with take product.product instead of product.template

product_id = fields.Many2one('product.product', string ="Product")

Hope this will helps you.

Thanks,

Whenever a method is defined '@api.multi' it means, the method can accept a list of RecordSet, thus the param Self might hold list of BrowseRecords, in that case, Add a loop to do necessary.

@api.multi

def generate_purchase_history(self):
action = self.env.ref('purchase.action_purchase_line_product_tree')
ProductIds = []
for case in self:
     ProductIds.append(case.product_id.id)
 
domain= [('product_id', 'in',ProductIds )]

return {
        'name': action.name,
        'help': action.help,
        'type': action.type,
        'view_type': action.view_type,
        'view_mode': action.view_mode,
        'target': action.target,
        'res_model': action.res_model,
        'domain': domain

The correct domain is:

domain="[('product_id', '=', self.product_id.id)]"

Hi Jithin,

Self is not defined error can occur when your indentation is not proper. so, check your indentation.

another one thing i am seeing in your code is return statement doesn't have ending  "}" .

I think you can't get "product_id" using "self.product_id"

Try something like this:

@api.multi
def generate_purchase_history(self):
for data in self:
     product = data.product_id.id
    action = self.env.ref('purchase.action_purchase_line_product_tree')
    domain= [('product_id', '=', product)]
    return {
        'name': action.name,
        'help': action.help,
        'type': action.type,
        'view_type': action.view_type,
        'view_mode': action.view_mode,
        'target': action.target,
        'res_model': action.res_model,
        'domain': domain