Fix Drupal Form Submit Errors

You will learn to fix drupal form submit errors

The Problem

The drupal form form submit pattern is frequently misapplied in smart contract and dapp development, leading to vulnerabilities, gas inefficiencies, or logic errors. This guide shows the correct implementation and common pitfalls to avoid.

Quick Fix

Wrong

$form['#submit'][] = 'custom_submit'; // Function name string

Works but better to use class-based callbacks.

Right

$form['actions']['submit']['#submit'][] = '::customSubmit';

Class-based callback referencing ::method syntax.

Prevention

• Use ::method for submit callbacks
• Add submit weight for execution order

DodaTech Tools

Built by the developers of Doda Browser, DodaZIP, and Durga Antivirus Pro. Doda Browser's developer tools include a Solidity debugger and transaction inspector. DodaZIP archives secure contract templates for team collaboration. Durga Antivirus Pro scans deployed contracts for known vulnerability signatures.

FAQ