text: exports.up = function(knex, Promise) {
    return knex.schema.createTableIfNotExists('fixtures', function(table){
      table.increments('id')
      table.integer('oppositionId').notNullable
      table.string('groundId').notNullable
      table.date('date').notNullable
    })
  };
  
  exports.down = function(knex, Promise) {
    return knex.schema.dropTableIfExists('fixtures')
  };
  