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Updating portal settings (name, header text, page title, homepage link) on a portal that already has a logo attached returns 500. The error is \`NoMethodError: undefined method 'valid_encoding?' for an instance of Integer\`. The fix is a two-character change in \`process_attached_logo\`. Closes #13300 ## Root cause \`ActiveStorage::Blob.find_signed\` expects a signed ID string (e.g. \`"eyJfcmFpbH..."\`). Internally it calls \`valid_encoding?\` on the argument to validate the signature payload — a method that exists on \`String\` but not \`Integer\`. When a portal already has a logo, the frontend includes the blob's raw database integer ID (e.g. \`blob_id: 170\`) in the update request payload. The controller passes this integer directly to \`find_signed\`, which immediately raises \`NoMethodError\` before any database query is made. \`\`\`ruby # before, crashes when blob_id is an Integer blob_id = params[:blob_id] blob = ActiveStorage::Blob.find_signed(blob_id) # NoMethodError here @portal.logo.attach(blob) \`\`\` ## What changed \`\`\`ruby # after, safe for any input type blob = ActiveStorage::Blob.find_signed(params[:blob_id].to_s) @portal.logo.attach(blob) if blob \`\`\` \`.to_s\` on an Integer produces a plain decimal string (\`"170"\`), which is not a valid signed ID. \`find_signed\` returns \`nil\` for any invalid signature rather than raising, so the nil guard prevents a broken \`attach\` call. The existing logo remains attached and the settings update succeeds. ## Trade-offs considered | Option | Decision | |---|---| | \`find(blob_id)\` when input is an Integer | Bypasses signature verification — any authenticated user knowing a blob ID could attach arbitrary files to a portal. Security risk. Rejected. | | Raise a 422 for non-string blob_id | Overly strict — the frontend sending an integer is pre-existing behaviour this PR shouldn't break. | | Silently no-op for invalid blob_id (chosen) | Correct product behaviour: if no valid signed upload is provided, leave the logo unchanged. The settings update still succeeds. | ## Known limitation The correct long-term fix is also on the frontend: it should only send \`blob_id\` when attaching a **new** upload (using the signed ID from the direct-upload flow), not when re-submitting the existing logo's raw database integer ID. This PR makes the server robust against the current frontend behaviour without requiring a coordinated frontend change. ## How to reproduce 1. Create a Help Center portal and upload a logo 2. Update any text field via \`PUT /api/v1/accounts/:id/portals/:slug\` while including \`blob_id: <integer>\` in the payload 3. Observe 500 with \`NoMethodError: undefined method 'valid_encoding?' for an instance of Integer\` After this fix, the request returns 200, settings are updated, and the existing logo is preserved. Co-authored-by: Ramalau Debeila <rdebeila@datacentrix.co.za>
Chatwoot
The modern customer support platform, an open-source alternative to Intercom, Zendesk, Salesforce Service Cloud etc.
Chatwoot is the modern, open-source, and self-hosted customer support platform designed to help businesses deliver exceptional customer support experience. Built for scale and flexibility, Chatwoot gives you full control over your customer data while providing powerful tools to manage conversations across channels.
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