Retrieving information from a virtual document in a 'pre' save hook using Mongoose

Seeking help with utilizing data from a recently created document to update a value using a 'pre' hook.

An example of the model being used:

...
title: {
  type: String,
  required: true
},
company: {
  type: mongoose.Schema.ObjectId,
  ref: 'Company',
  required: true
}

...

The 'pre' hook in question:

jobSchema.pre('save', function(next) {
  const jobTitle = slugify(this.title, { lower: true })
  const companyName = slugify(this.company.name, { lower: true })
  this.slug = jobTitle + companyName
  next()
})

Encountering difficulty accessing this.company within the hook and exploring potential solutions.

Answer №1

When dealing with a company as an ObjectId type, it is possible to utilize the findById method for access.

jobSchema.pre('save', function(next) {
    let job = this;
    Company.findById(job.company, function (err, company) {
        if(err) return next(err);
        const jobTitle = slugify(job.title, { lower: true })
        const companyName = slugify(company.name, { lower: true })
        job.slug = jobTitle + companyName
        next();
    });
});

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