Sharkey/tools/migration/node.1510016282.change-gridfs-metadata-name-to-filename.js

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// for Node.js interpret
/**
* change usage of GridFS filename
* see commit fb422b4d603c53a70712caba55b35a48a8c2e619
*/
const { default: DriveFile } = require('../../built/api/models/drive-file')
async function applyNewChange (doc) {
const result = await DriveFile.update(doc._id, {
$set: {
filename: doc.metadata.name
},
$unset: {
'metadata.name': ''
}
})
return result.ok === 1
}
async function main () {
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const query = {
'metadata.name': {
$exists: true
}
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}
const count = await DriveFile.count(query)
const dop = Number.parseInt(process.argv[2]) || 5
const idop = ((count - (count % dop)) / dop) + 1
return zip(
1,
async (time) => {
console.log(`${time} / ${idop}`)
const doc = await db.get('drive_files').find(query, {
limit: dop, skip: time * dop
})
return Promise.all(doc.map(applyNewChange))
},
idop
).then(a => {
const rv = []
a.forEach(e => rv.push(...e))
return rv
})
}
main().then(console.dir).catch(console.error)