33 lines
1.2 KiB
TypeScript
33 lines
1.2 KiB
TypeScript
import { BaseSchema } from '@adonisjs/lucid/schema'
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/**
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* Splitting equal-sized obfuscated volumes (CONCEPT.md D20): the extra
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* articles of conflicted binaries are kept, and the split-off volumes point
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* to the conflicted binary they came from.
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*/
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export default class extends BaseSchema {
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async up() {
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this.schema.createTable('part_conflicts', (table) => {
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table.bigInteger('binary_id').notNullable().references('binaries.id').onDelete('CASCADE')
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table.integer('number').notNullable()
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table.text('message_id').notNullable()
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table.integer('bytes').notNullable()
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table.bigInteger('article_number')
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table.primary(['binary_id', 'number', 'message_id'])
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})
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this.schema.alterTable('binaries', (table) => {
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table.bigInteger('parent_binary_id').references('binaries.id').onDelete('SET NULL').index()
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// Last time the splitter processed this conflicted binary.
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table.timestamp('split_at', { useTz: true })
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})
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}
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async down() {
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this.schema.alterTable('binaries', (table) => {
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table.dropColumn('split_at')
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table.dropColumn('parent_binary_id')
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})
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this.schema.dropTable('part_conflicts')
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}
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}
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