Hi rmeyer,
I did it, but not linked to doctype. I linked it to print format.
I add a custom field to print_format. A link to email_template.
Then I add this .js in public folder of my custom app.
frappe.views.CustomCommunicationComposer = frappe.views.CommunicationComposer.extend({
prepare: function() {
this.setup_subject_and_recipients();
this.setup_print_language();
this.setup_print();
this.setup_attach();
this.setup_email();
this.setup_last_edited_communication();
this.setup_email_template();
// this line add email template to email dialog.
this.dialog.fields_dict["email_template"].set_value(frappe.model.get_value("Print Format", this.dialog.fields_dict.select_print_format.get_value(), "email_template"));
this.dialog.fields_dict.recipients.set_value(this.recipients || '');
this.dialog.fields_dict.cc.set_value(this.cc || '');
this.dialog.fields_dict.bcc.set_value(this.bcc || '');
if(this.dialog.fields_dict.sender) {
this.dialog.fields_dict.sender.set_value(this.sender || '');
}
this.dialog.fields_dict.subject.set_value(this.subject || '');
this.setup_earlier_reply();
},
});
frappe.views.CommunicationComposer = frappe.views.CustomCommunicationComposer
Don’t forget to add your .js file in build.json.