SelectorFallback

SelectorFallback is a fallback component used by all contextual selectors when their required context data is unavailable or empty. Instead of showing a broken or empty dropdown, it renders a plain text or number input with an amber warning hint indicating that the user must enter the value manually.

When It Appears

SelectorFallback is rendered automatically by other selectors in two scenarios:

• No context: The palletContext prop is undefined or null (e.g. the pallet context fetch failed or has not completed).
• Empty data: The context exists but the relevant data array is empty (e.g. no validators, no pools, no referenda).

It is used as the fallback in: ValidatorSelector, ValidatorMultiSelector, PoolSelector, ReferendumSelector, BountySelector, and TrackSelector.

Props

Features

• Plain input: Renders a standard Input component (text or number) without any dropdown or combobox behavior.
• Warning hint: Displays a ContextHint with an amber AlertCircle icon and the message "Context unavailable -- enter value manually".
• Type-aware parsing: When type is "number", the input value is parsed with Number() before being passed to onChange. When type is "text", the raw string is passed.
• Customizable placeholder: Accepts a custom placeholder or generates one from the label.

Data Source

SelectorFallback does not fetch any data. It is a pure input component that accepts user-typed values.

Usage

SelectorFallback is typically used internally by selectors, not directly:

import { SelectorFallback } from "@/components/params/selectors/selector-fallback";

// Numeric fallback (default)
<SelectorFallback
  label="Pool ID"
  value={42}
  onChange={(v) => console.log("Value:", v)}
/>

// Text fallback for validator addresses
<SelectorFallback
  label="Validator"
  value=""
  onChange={(v) => console.log("Address:", v)}
  type="text"
  placeholder="Enter validator address"
/>

Value Format

The onChange callback receives either a number (when type="number", the default) or a string (when type="text"), depending on the configured input type.