Web Form: Email Validation for DocType Not Working

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1

Hi Community,

I’m using a public web form for “Membership Application” DocType and need to check if the submitted email exists in the “Member” DocType.

Problem:

My validation code (below) doesn’t work—it doesn’t block submissions even when the email isn’t in “Member”. No errors, but no validation either.

frappe.web_form.validate = function() {
    const email = frappe.web_form.get_value('email');
    return frappe.call({
        method: "frappe.client.get_value",
        args: {
            doctype: "Member",
            fieldname: "name",
            filters: { email: email }
        }
    }).then((response) => {
        if (!response.message) {
            frappe.msgprint("Email not found in Member records.");
            return false; // Fail validation
        }
        return true; // Pass validation
    });
}

What I’ve Tried:

  • Guest User has read access to “Member”.

Question:
Why isn’t the validation blocking submissions? Are there hidden permissions or a better approach?

Thanks for any tips!

2

I have now the following skript for my webform:

frappe.web_form.validate = function() {
    const email = frappe.web_form.get_value('email');
    console.log("[VALIDIERUNG] Prüfe E-Mail:", email);

    frappe.call({
        method: "frappe.client.get_value",
        args: {
            doctype: "Mitglied",
            fieldname: "name",
            filters: { "email": email }
        }
    }).done(function(response) {
        console.log("[DEBUG] API Antwort:", response);
        console.log(response.message);
        
        if (!response.message.name) {
            console.warn("[FEHLER] Kein Mitglied mit dieser E-Mail gefunden");
            frappe.msgprint("Diese E-Mail ist keinem Mitglied zugeordnet.");
            return false;
        }

        console.log("[SUCCESS] Mitglied gefunden:", response.message.name);
        return true;
    });
};

If i enter an e-mail which is not in Member Database (Doctype: Mitglied) it still allows for submission :(. Makes for me no sense at all. Here my console.log:

image

If i enter email which is in member database it works:
image

Would be very happy about any help :)!