egirlskey/tools/migration/node.2017-12-22.hiseikika.js

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2017-12-21 20:41:21 +00:00
// for Node.js interpret
const { default: Post } = require('../../built/api/models/post')
const { default: zip } = require('@prezzemolo/zip')
const migrate = async (post) => {
const x = {};
if (post.reply_id != null) {
const reply = await Post.findOne({
_id: post.reply_id
});
x['_reply.user_id'] = reply.user_id;
}
if (post.repost_id != null) {
const repost = await Post.findOne({
_id: post.repost_id
});
x['_repost.user_id'] = repost.user_id;
}
if (post.reply_id != null || post.repost_id != null) {
const result = await Post.update(post._id, {
$set: x,
});
return result.ok === 1;
} else {
return true;
}
}
async function main() {
const query = {
$or: [{
reply_id: {
$exists: true,
$ne: null
}
}, {
repost_id: {
$exists: true,
$ne: null
}
}]
}
const count = await Post.count(query);
const dop = Number.parseInt(process.argv[2]) || 5
const idop = ((count - (count % dop)) / dop) + 1
return zip(
1,
async (time) => {
console.log(`${time} / ${idop}`)
const doc = await Post.find(query, {
limit: dop, skip: time * dop
})
return Promise.all(doc.map(migrate))
},
idop
).then(a => {
const rv = []
a.forEach(e => rv.push(...e))
return rv
})
}
main().then(console.dir).catch(console.error)