user_chat_seed.js

exports.seed = function(knex, Promise) {
  // Deletes ALL existing entries
  return knex('table_name').del()
    .then(function () {
      // Inserts seed entries
      return knex('table_name').insert([
          {
              id: 1, 
              user_id: 1,
              chat_id: 1
          },
          {
              id: 2, 
              user_id: 2,
              chat_id: 2
          },
      ]);
    });
};