Fix Drupal Twig Extension Errors

You will learn to fix drupal twig extension errors

The Problem

The drupal theme extension twig 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

class MyExtension extends TwigExtension { public function getFilters() { return [new TwigFilter('custom', 'doSomething')]; } }

OK but better to use class-based callback.

Right

public function getFilters() { return [new TwigFilter('custom', [$this, 'doSomething'])]; }

Class method as filter callback.

Prevention

• Register Twig extensions in services.yml
• Use class methods for callbacks

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