How to call a python function while clicking a button event

Frappe Framework App Development
1

i have created a button on my custom doctype, so how i can call a function on the click event.

2

Hi,

Use cur_frm.cscript.fieldname=function(doc, dt, dn){} to add trigger on fields.

In your case,
cur_frm.cscript.call_me = function(doc, dt, dn){
/* function body*/
}

Regards,
Saurabh
New Indictrans Technologies Pvt Ltd.

3

Actually i need to call a function from python file. Not from the .js file.
Is it possible to call the python function from a .js file?

4

i just tried to call from csript, but getting some error messages.,

.js file

Pasted image788Ă—119 10.1 KB

.py file
Pasted image910Ă—246 22.5 KB

form

error

1 Like
5

am getting this message box while clicking the custom button i have created.

6

You have to declare a whitelisted method in your py module

@frappe.whitelist()
def call_me():
  msgprint("call me")

Then call from js

frappe.ui.form.on("[doctype]", "call_me", function(frm) {
  frappe.call({
    method: "myapp.mymodule.call_me",
    callback: function(r) { };
  });
});
2 Likes
7

Hi rmehta,
Actually I have the same issue and I’am not sure on where I have to declare the whitelisted method. Is it in the hooks.py of my app or in the .py file of my doctype?

Thx in advance for your help!

8

Put whitelisted method under .py file of doctype.

9

Ok thank you!

10

I got the error … ! App poly_clinic is not installed
poly_clinic is myapp here.
Thank you …!

11 
@frappe.whitelist()
def test_method(document_name,cur_document):
    msgprint(Hai I am Here)

my js code :
frappe.ui.form.on("Lab Test", "test_invoice",
    function(frm) {
        frappe.call({
            "method": "poly_clinic.laboratory.test_method",
            args: {
                document_name: "Sales Invoice",
                cur_document: frm.doc.test_invoice
            },
            callback: function (data) {
        console.log(data);                
            }
        })
    });

And I am getting the error App poly_clinic is not installed

12

@jamsheer
Check your method path.
It should be like “app_name/app_name/module/doctype/method”
e.g. method: “erpnext.crm.doctype.lead.lead.make_quotation”

13

Thank you…
@Sangram

@frappe.whitelist()
def test_method(document_name,cur_document):
    msgprint(Hai I am Here)

my js code :
frappe.ui.form.on("Lab Test", "test_invoice",
    function(frm) {
        frappe.call({
            "method": "poly_clinic.poly_clinic.laboratory.lab_test.test_method",
            args: {
                document_name: "Sales Invoice",
                cur_document: frm.doc.test_invoice
            },
            callback: function (data) {
        console.log(data);                
            }
        })
    });

But Still the error remains :
AppNotInstalledError: App poly_clinic is not installed.
I have installed the erpnext over my app – is that a problem… ?

14

What is the path to the .py file?

It should be something like poly_clinic/poly_clinic/doctype/laboratory/lab_test.py, in which case the method call would be:

"method": "poly_clinic.poly_clinic.doctype.laboratory.lab_test.test_method"
15

this what my path and code :

ike poly_clinic/poly_clinic/laboratory/doctype/lab_test.py, in which case the method call would be:

“method”: “poly_clinic.poly_clinic.laboratory.doctype.lab_test.test_method”

16

I don’t think you have the path correct. Can you take a screen shot?

17

Thank you, Now its Working…