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const MongooseError = require('../../error/mongooseError');
const getDiscriminatorByValue = require('../../helpers/discriminator/getDiscriminatorByValue');
const applyTimestampsToChildren = require('../update/applyTimestampsToChildren');
const applyTimestampsToUpdate = require('../update/applyTimestampsToUpdate');
const cast = require('../../cast');
const castUpdate = require('../query/castUpdate');
const clone = require('../clone');
const decorateUpdateWithVersionKey = require('../update/decorateUpdateWithVersionKey');
const { inspect } = require('util');
const setDefaultsOnInsert = require('../setDefaultsOnInsert');
/**
* Given a model and a bulkWrite op, return a thunk that handles casting and
* validating the individual op.
* @param {Model} originalModel
* @param {Object} op
* @param {Object} [options]
* @api private
*/
module.exports = function castBulkWrite(originalModel, op, options) {
const now = originalModel.base.now();
const globalSetDefaultsOnInsert = originalModel.base.options.setDefaultsOnInsert;
if (op['insertOne']) {
return (callback) => {
const model = decideModelByObject(originalModel, op['insertOne']['document']);
const doc = new model(op['insertOne']['document']);
if (model.schema.options.timestamps && getTimestampsOpt(op['insertOne'], options)) {
doc.initializeTimestamps();
}
if (options.session != null) {
doc.$session(options.session);
}
const versionKey = model?.schema?.options?.versionKey;
if (versionKey && doc[versionKey] == null) {
doc[versionKey] = 0;
}
op['insertOne']['document'] = doc;
if (options.skipValidation || op['insertOne'].skipValidation) {
callback(null);
return;
}
op['insertOne']['document'].$validate().then(
() => { callback(null); },
err => { callback(err, null); }
);
};
} else if (op['updateOne']) {
return (callback) => {
try {
if (!op['updateOne']['filter']) {
throw new Error('Must provide a filter object.');
}
if (!op['updateOne']['update']) {
throw new Error('Must provide an update object.');
}
const model = decideModelByObject(originalModel, op['updateOne']['filter']);
const schema = model.schema;
const strict = options.strict != null ? options.strict : model.schema.options.strict;
const update = clone(op['updateOne']['update']);
_addDiscriminatorToObject(schema, op['updateOne']['filter']);
const doInitTimestamps = getTimestampsOpt(op['updateOne'], options);
if (model.schema.$timestamps != null && doInitTimestamps) {
const createdAt = model.schema.$timestamps.createdAt;
const updatedAt = model.schema.$timestamps.updatedAt;
applyTimestampsToUpdate(now, createdAt, updatedAt, update, {});
}
if (doInitTimestamps) {
applyTimestampsToChildren(now, update, model.schema);
}
const shouldSetDefaultsOnInsert = op['updateOne'].setDefaultsOnInsert == null ?
globalSetDefaultsOnInsert :
op['updateOne'].setDefaultsOnInsert;
if (shouldSetDefaultsOnInsert !== false) {
setDefaultsOnInsert(op['updateOne']['filter'], model.schema, update, {
setDefaultsOnInsert: true,
upsert: op['updateOne'].upsert
});
}
decorateUpdateWithVersionKey(
update,
op['updateOne'],
model.schema.options.versionKey
);
op['updateOne']['filter'] = cast(model.schema, op['updateOne']['filter'], {
strict: strict,
upsert: op['updateOne'].upsert
});
op['updateOne']['update'] = castUpdate(model.schema, update, {
strict: strict,
upsert: op['updateOne'].upsert
}, model, op['updateOne']['filter']);
} catch (error) {
return callback(error, null);
}
callback(null);
};
} else if (op['updateMany']) {
return (callback) => {
try {
if (!op['updateMany']['filter']) {
throw new Error('Must provide a filter object.');
}
if (!op['updateMany']['update']) {
throw new Error('Must provide an update object.');
}
const model = decideModelByObject(originalModel, op['updateMany']['filter']);
const schema = model.schema;
const strict = options.strict != null ? options.strict : model.schema.options.strict;
const shouldSetDefaultsOnInsert = op['updateMany'].setDefaultsOnInsert == null ?
globalSetDefaultsOnInsert :
op['updateMany'].setDefaultsOnInsert;
if (shouldSetDefaultsOnInsert !== false) {
setDefaultsOnInsert(op['updateMany']['filter'], model.schema, op['updateMany']['update'], {
setDefaultsOnInsert: true,
upsert: op['updateMany'].upsert
});
}
const doInitTimestamps = getTimestampsOpt(op['updateMany'], options);
if (model.schema.$timestamps != null && doInitTimestamps) {
const createdAt = model.schema.$timestamps.createdAt;
const updatedAt = model.schema.$timestamps.updatedAt;
applyTimestampsToUpdate(now, createdAt, updatedAt, op['updateMany']['update'], {});
}
if (doInitTimestamps) {
applyTimestampsToChildren(now, op['updateMany']['update'], model.schema);
}
_addDiscriminatorToObject(schema, op['updateMany']['filter']);
decorateUpdateWithVersionKey(
op['updateMany']['update'],
op['updateMany'],
model.schema.options.versionKey
);
op['updateMany']['filter'] = cast(model.schema, op['updateMany']['filter'], {
strict: strict,
upsert: op['updateMany'].upsert
});
op['updateMany']['update'] = castUpdate(model.schema, op['updateMany']['update'], {
strict: strict,
upsert: op['updateMany'].upsert
}, model, op['updateMany']['filter']);
} catch (error) {
return callback(error, null);
}
callback(null);
};
} else if (op['replaceOne']) {
return (callback) => {
const model = decideModelByObject(originalModel, op['replaceOne']['filter']);
const schema = model.schema;
const strict = options.strict != null ? options.strict : model.schema.options.strict;
_addDiscriminatorToObject(schema, op['replaceOne']['filter']);
try {
op['replaceOne']['filter'] = cast(model.schema, op['replaceOne']['filter'], {
strict: strict,
upsert: op['replaceOne'].upsert
});
} catch (error) {
return callback(error, null);
}
// set `skipId`, otherwise we get "_id field cannot be changed"
const doc = new model(op['replaceOne']['replacement'], strict, true);
if (model.schema.options.timestamps && getTimestampsOpt(op['replaceOne'], options)) {
doc.initializeTimestamps();
}
if (options.session != null) {
doc.$session(options.session);
}
const versionKey = model?.schema?.options?.versionKey;
if (versionKey && doc[versionKey] == null) {
doc[versionKey] = 0;
}
op['replaceOne']['replacement'] = doc;
if (options.skipValidation || op['replaceOne'].skipValidation) {
op['replaceOne']['replacement'] = op['replaceOne']['replacement'].toBSON();
callback(null);
return;
}
op['replaceOne']['replacement'].$validate().then(
() => {
op['replaceOne']['replacement'] = op['replaceOne']['replacement'].toBSON();
callback(null);
},
error => {
callback(error, null);
}
);
};
} else if (op['deleteOne']) {
return (callback) => {
const model = decideModelByObject(originalModel, op['deleteOne']['filter']);
const schema = model.schema;
_addDiscriminatorToObject(schema, op['deleteOne']['filter']);
try {
op['deleteOne']['filter'] = cast(model.schema,
op['deleteOne']['filter']);
} catch (error) {
return callback(error, null);
}
callback(null);
};
} else if (op['deleteMany']) {
return (callback) => {
const model = decideModelByObject(originalModel, op['deleteMany']['filter']);
const schema = model.schema;
_addDiscriminatorToObject(schema, op['deleteMany']['filter']);
try {
op['deleteMany']['filter'] = cast(model.schema,
op['deleteMany']['filter']);
} catch (error) {
return callback(error, null);
}
callback(null);
};
} else {
return (callback) => {
const error = new MongooseError(`Invalid op passed to \`bulkWrite()\`: ${inspect(op)}`);
callback(error, null);
};
}
};
function _addDiscriminatorToObject(schema, obj) {
if (schema == null) {
return;
}
if (schema.discriminatorMapping && !schema.discriminatorMapping.isRoot) {
obj[schema.discriminatorMapping.key] = schema.discriminatorMapping.value;
}
}
/**
* gets discriminator model if discriminator key is present in object
* @api private
*/
function decideModelByObject(model, object) {
const discriminatorKey = model.schema.options.discriminatorKey;
if (object != null && object.hasOwnProperty(discriminatorKey)) {
model = getDiscriminatorByValue(model.discriminators, object[discriminatorKey]) || model;
}
return model;
}
/**
* gets timestamps option for a given operation. If the option is set within an individual operation, use it. Otherwise, use the global timestamps option configured in the `bulkWrite` options. Overall default is `true`.
* @api private
*/
function getTimestampsOpt(opCommand, options) {
const opLevelOpt = opCommand.timestamps;
const bulkLevelOpt = options.timestamps;
if (opLevelOpt != null) {
return opLevelOpt;
} else if (bulkLevelOpt != null) {
return bulkLevelOpt;
}
return true;
}
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