48 lines
		
	
	
		
			942 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			48 lines
		
	
	
		
			942 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// for Node.js interpret
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const { default: DriveFile } = require('../../built/api/models/drive-file')
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const { default: zip } = require('@prezzemolo/zip')
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const migrate = async (doc) => {
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	const result = await DriveFile.update(doc._id, {
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		$set: {
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			contentType: doc.metadata.type
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		},
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		$unset: {
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			'metadata.type': ''
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		}
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	})
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	return result.ok === 1
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}
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async function main() {
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	const query = {
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		'metadata.type': {
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			$exists: true
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		}
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	}
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	const count = await DriveFile.count(query);
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	const dop = Number.parseInt(process.argv[2]) || 5
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	const idop = ((count - (count % dop)) / dop) + 1
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	return zip(
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		1,
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		async (time) => {
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			console.log(`${time} / ${idop}`)
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			const doc = await db.get('drive_files').find(query, {
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				limit: dop, skip: time * dop
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			})
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			return Promise.all(doc.map(migrate))
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		},
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		idop
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	).then(a => {
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		const rv = []
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		a.forEach(e => rv.push(...e))
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		return rv
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	})
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}
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main().then(console.dir).catch(console.error)
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