SchemaBreakingChangeError

Thrown by saveSchema when OpenRegister classifies an edit as breaking and will not apply it until the caller acknowledges that stored objects may no longer match the schema.

import { saveSchema, SchemaBreakingChangeError, describeSchemaChange } from '@conduction/nextcloud-vue'

try {
    await saveSchema(payload, { id })
} catch (e) {
    if (e instanceof SchemaBreakingChangeError) {
        e.changes.forEach((c) => console.log(describeSchemaChange(c, t)))
        // → "barn: type changed (from string to object)"
    }
}

Property	Type	Description
changes	Array<object>	The changes the server objected to — { property, kind, old, new }. Show these verbatim.
breaking	boolean	Always true.

This is a question for the user, not a fault: surface changes, then re-call saveSchema with acknowledgeBreaking: true if they accept. Never acknowledge on their behalf.

It is deliberately not thrown when the attempt already carried the flag — so a caller physically cannot build an endless confirm loop.