one-to-many.md

One-to-many associations can be created with {@link Model#belongsTo belongsTo}, {@link Model#hasMany hasMany}, {@link Model#morphMany morphMany} / {@link Model#morphTo morphTo}, and some of the {@link Model#through through} relation types.

var Book = bookshelf.Model.extend({
  tableName: 'books',
  pages: function() {
    return this.hasMany(Page);
  }
});

var Page = bookshelf.Model.extend({
  tableName: 'pages',
  book: function() {
    return this.belongsTo(Book);
  }
});

A Knex migration for the above relationship could be created with:

exports.up = function(knex, Promise) {
  return knex.schema.createTable('books', function(table) {
    table.increments('id').primary();
    table.string('name');
  }).createTable('pages', function(table) {
    table.increments('id').primary();
    table.string('content');
    table.integer('book_id').references('books.id')
  });
};

exports.down = function(knex, Promise) {
  return knex.schema.dropTable('books')
    .dropTable('pages');
};