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,

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            
            }	

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  "}" .

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.

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