Adonis.js 关系

Question

I have these tables: companies, branches, users, users_branches

Every branch is linked to a company . The user can be linked to a branch that captures in the users_branches pivot table

In the index and show methods of the company I need to display only as companies that the user has access to, that is, only as companies that are linked to any branch that he is registered with. Can you help me?

What I have today is this, very basic and listing everything:

async index () {
  const companies = await Company.all()
  return companies
}

async show ({ params }) {
  const company = await Company.findOrFail(params.id)

  await company.load('branches')

  return company
}

I've tried to do it in two other ways:

async index ({ auth }) {
  const { user } = auth

  return user.branches().company().fetch()
}

and

async index () {
  const companies = await Company.query()
    .whereHas('branches', branchesQuery => {
      branchesQuery.wherePivot('user_id', 1)
    })
    .fetch()

  return companies
}

But it does not work

Answer 1

This might work, (you may also need to change 'user_id' to 'id' if it gives any error, also enable DEBUG and watch the query

const companies = await Company.query()
.whereHas('branches', branchesQuery => {
  branchesQuery.whereHas('users', uq => {
    uq.where('user_id', 1)
  })
})
.fetch()