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wiki/server/db/migrations/2.2.17.js

23 lines
868 B

/* global WIKI */
exports.up = knex => {
let sqlVersionDate = ''
switch (WIKI.config.db.type) {
case 'postgres':
case 'mssql':
sqlVersionDate = 'UPDATE "pageHistory" h1 SET "versionDate" = COALESCE((SELECT prev."createdAt" FROM "pageHistory" prev WHERE prev."pageId" = h1."pageId" AND prev.id < h1.id ORDER BY prev.id DESC LIMIT 1), h1."createdAt")'
break
case 'mysql':
case 'mariadb':
sqlVersionDate = `UPDATE pageHistory AS h1 INNER JOIN pageHistory AS h2 ON h2.id = (SELECT prev.id FROM pageHistory AS prev WHERE prev.pageId = h1.pageId AND prev.id < h1.id ORDER BY prev.id DESC LIMIT 1) SET h1.versionDate = h2.createdAt`
break
}
return knex.schema
.alterTable('pageHistory', table => {
table.string('versionDate').notNullable().defaultTo('')
})
.raw(sqlVersionDate)
}
exports.down = knex => { }