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Pad: Factor out key rev atext fetch

This commit is contained in:
Richard Hansen 2021-12-01 17:04:43 -05:00
parent 7ee2141fe6
commit fa0d77c11d
1 changed files with 9 additions and 1 deletions
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10
src/node/db/Pad.js
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@ -150,6 +150,14 @@ class Pad {
return await this.db.getSub(`pad:${this.id}:revs:${revNum}`, ['meta', 'timestamp']);
}
/**
* @param {number} revNum - Must be a key revision number (see `getKeyRevisionNumber`).
* @returns The attribute text stored at `revNum`.
*/
async _getKeyRevisionAText(revNum) {
return await this.db.getSub(`pad:${this.id}:revs:${revNum}`, ['meta', 'atext']);
}
getAllAuthors() {
const authorIds = [];
@ -165,7 +173,7 @@ class Pad {
async getInternalRevisionAText(targetRev) {
const keyRev = this.getKeyRevisionNumber(targetRev);
const [keyAText, changesets] = await Promise.all([
this.db.getSub(`pad:${this.id}:revs:${keyRev}`, ['meta', 'atext']),
this._getKeyRevisionAText(keyRev),
Promise.all(
Stream.range(keyRev + 1, targetRev + 1).map(this.getRevisionChangeset.bind(this))),
]);