text: exports.seed = function(knex) {
    // Deletes ALL existing entries
    return knex('languages')
      .del()
      .then(function() {
        // Inserts seed entries
        return knex('languages').insert([
          { languageId: 1, language: 'English' },
          { languageId: 2, language: 'Spanish' },
          { languageId: 3, language: 'Chinese' },
          { languageId: 4, language: 'Russian' }
        ]);
      });
  };
  