rails-to-caveman/src/model.lisp

;;(in-package #:cl-user) ; Not sure if this needs to exist (Chapter 4)
(defpackage rails-to-caveman.model
  (:use #:cl
	#:rails-to-caveman.db
	#:mito))
(in-package #:rails-to-caveman.model)

;;; Defines the USER table class for the database.
;;; Will be used by mito (an ORM).
(defclass user ()
  ((number
    :col-type
    :integer
    :initarg
    :number
    :reader number-of)
   (name :col-type (:varchar 64)
	 :initarg
	 :name
	 :reader name-of)
   (full-name :col-type
	      (or (:varchar 128) :null)
	      :initarg
	      :full-name
	      :reader full-name-of)
   (email :col-type
	  (or :null :text)
	  :initarg
	  :email
	  :accessor email-of)
   (birthday :col-type
	     (or :null :date)
	     :initarg
	     :birthday
	     :reader birthday-of)
   (sex :col-type
	:integer
	:initarg
	:sex
	:initform 1
	:reader sex-of)

   #| CHANGED :ACCESSOR VALUE FROM TUTORIAL (CHAPTER 4)
   ===================================================
   The Chapter 4 tutorial has the :accessor value set to
   'administratorp'. Unfortunately, this causes initialisation
   argument errors when trying to seed the database. To fix this, I
   had to remove the 'p' part from that line. At the time of
   writing, I do not know if that will have a negative effect on
   future tutorials.

   I have left a note in the 'seeds' function below highlighting the
   change to the :accessor value.
   |#
   (administrator :col-type
		  :boolean
		  :initarg
		  :administrator
		  :initform nil
		  :accessor administrator))
  (:metaclass mito:dao-table-class))


(defun seeds()
  ;; '#(' are ARRAY LITERALS. I keep forgetting this and need to look
  ;; it up.
  (let ((names
	  #("Taro" "Jiro" "Hana" "John" "Mike" "Sophy" "Bill" "Alex" "Mary" "Tom"))
	(fnames ; First Names
	  #("Hippo" "Darling" "Lopez" "Jerry"))
	(gnames ; Given Names
	  #("Orange" "Fox" "Snake")))
    (with-connection (db)
      (dotimes (x 10)
	(mito:create-dao 'user
			 :number (+ x 10)
			 :name (aref names x)
			 :full-name (format nil "~A ~A"
					    (aref fnames (rem x 4))
					    (aref gnames (rem x 3)))
			 :email (format nil "~A@example.com" (aref names x))
			 :birthday "1981-12-01"
			 :sex (nth (rem x 3) '(1 1 2))
			 ;; Removed 'p' from end of :administrator --
			 ;; so the code differs from the code in the
			 ;; tutorial (Chapter 4). I had to change it
			 ;; because it produced errors when trying to
			 ;; seed the database (using 'seeds'
			 ;; function. I have, also, left a note in the
			 ;; 'user' class definition highlighting this.
			 :administrator (zerop 0))))))


(defun rebuild ()
  "Drops the current database table, recreates it and populates it using seeded data."
  (with-connection (db)
    (mito:recreate-table 'user))
  (seeds))

(defun ids ()
  "Produces a list of all the Id's in the database. Part of Chapter 4
tutorial and is a port of the 'ids method' in the Ruby on Rails book
this tutorial was translated/ported from."
  (rails-to-caveman.db:with-connection (rails-to-caveman.db:db)
    (mapcar #'mito:object-id
	    (mito:retrieve-dao 'rails-to-caveman.model::user))))