Created
July 25, 2018 12:34
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Remove cascade for mongoose
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import mongoose from 'mongoose'; | |
import connectDatabase from '../src/common/database'; | |
// this is needed to load all models in mongoose.models | |
// eslint-disable-next-line | |
import * as M from '../src/models'; | |
const removeCascade = async (modelName: string, _id: string) => { | |
const modelNames = Object.keys(mongoose.models); | |
// get all mongoose models | |
for (const name of modelNames) { | |
const { paths } = mongoose.models[name].schema; | |
const pathKeys = Object.keys(paths); | |
// check if there any path/field that reference the modelName | |
for (const path of pathKeys) { | |
if (paths[path].options.ref === modelName) { | |
// remove all references of this _id in references models | |
const rows = await mongoose.models[name].find({ | |
[path]: _id, | |
}); | |
if (rows.length > 0) { | |
for (const row of rows) { | |
// remove references of references | |
await removeCascade(name, row._id); | |
} | |
// eslint-disable-next-line | |
console.log(`remove ${modelName} ${_id} from ${name} ${path}`); | |
await mongoose.models[name].remove({ | |
[path]: _id, | |
}); | |
} | |
} | |
} | |
} | |
// eslint-disable-next-line | |
console.log(`remove ${modelName} ${_id}`); | |
await mongoose.models[modelName].remove({ | |
_id, | |
}); | |
}; | |
//mongoose.models.User.schema.paths.user.options.ref | |
(async () => { | |
try { | |
if (process.argv.length !== 4) { | |
// eslint-disable-next-line | |
console.log('usage: yarn babel-node ./scripts/removeCascadeMongo.js <modelName> <modelId>'); | |
return; | |
} | |
const modelName = process.argv[2]; | |
const _id = process.argv[3]; | |
await connectDatabase(); | |
await removeCascade(modelName, _id); | |
} catch (err) { | |
// eslint-disable-next-line | |
console.log('err: ', err); | |
} | |
process.exit(0); | |
})(); |
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