Controller File (campaign.js) - Update campaign.js to load model from MongoDB

campaign.js

// Location: controller/campaign.js

const {
  models: {
    mongo: { campaign: Campaign }
  }
} = require('@pomona/pomona2-dbmodels')

const Joi = require('@hapi/joi')
Joi.objectId = require('joi-objectid')(Joi)

exports.GetCampaignsByBrandId = async (req, res, next) => {
  try {
    const validatedQuery = await Joi.validate(
      req.query,
      Joi.object().keys({
        brand_id: Joi.objectId().required()
      }),
      { stripUnknown: true }
    )

    const campaign = await Campaign.find({
      brand_id: validatedQuery.brand_id
    })

    return res.json(campaign)
  } catch (err) {
    return next(err)
  }
}