rxdb
Version:
A local-first realtime NoSQL Database for JavaScript applications - https://rxdb.info/
49 lines • 1.56 kB
JavaScript
import { clone, createRevision, flatClone, getDefaultRevision, now } from "../plugins/utils/index.js";
import { stripAttachmentsDataFromDocument } from "../rx-storage-helper.js";
export function docStateToWriteDoc(databaseInstanceToken, hasAttachments, keepMeta, docState, previous) {
var docData = Object.assign({}, docState, {
_attachments: hasAttachments && docState._attachments ? docState._attachments : {},
_meta: keepMeta ? docState._meta : Object.assign({}, previous ? previous._meta : {}, {
lwt: now()
}),
_rev: keepMeta ? docState._rev : getDefaultRevision()
});
if (!docData._rev) {
docData._rev = createRevision(databaseInstanceToken, previous);
}
return docData;
}
export function writeDocToDocState(writeDoc, keepAttachments, keepMeta) {
var ret = flatClone(writeDoc);
if (!keepAttachments) {
delete ret._attachments;
}
if (!keepMeta) {
delete ret._meta;
delete ret._rev;
}
return ret;
}
export function stripAttachmentsDataFromMetaWriteRows(state, rows) {
if (!state.hasAttachments) {
return rows;
}
return rows.map(row => {
var document = clone(row.document);
document.docData = stripAttachmentsDataFromDocument(document.docData);
return {
document,
previous: row.previous
};
});
}
export function getUnderlyingPersistentStorage(instance) {
while (true) {
if (instance.underlyingPersistentStorage) {
instance = instance.underlyingPersistentStorage;
} else {
return instance;
}
}
}
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