undefined method `create'

[Thufir]

I want to create one creature and write it to the dwemthys.db, and I'm
close. From the example at <http://www.dzone.com/links/rss/
simple_ruby_activerecord_example.html?> I know that the "create" method
is used for this, but somehow it fails when for creatures when it works
for the example.

All code is at <http://code.google.com/p/dwemthys/source>, but this is
what I'm running into:


thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $ ruby creatures.rb
-- create_tablecreatures)
SQL (0.016574) CREATE TABLE creatures ("id" INTEGER PRIMARY KEY NOT
NULL, "life" integer DEFAULT NULL, "strength" integer DEFAULT NULL,
"charisma" integer DEFAULT NULL, "weapon" integer DEFAULT NULL)
-> 0.1334s
creatures.rb:28: undefined method `create' for Creature:Class
(NoMethodError)
thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $ cat creatures.rb
require 'active_record'
require 'ArrayOfCreatures'
require 'MakeCreature'
require 'Creature'

include MakeCreature


ActiveRecord::Base.logger = Logger.new(STDERR)
ActiveRecord::Base.colorize_logging = true

ActiveRecord::Base.establish_connection(
:adapter => "sqlite3",
:dbfile => "dwemthys.db"
)


ActiveRecord::Schema.define do
create_table :creatures do |table|
table.column :life, :integer
table.column :strength, :integer
table.column :charisma, :integer
table.column :weapon, :integer
end
end


creature = Creature.create
thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $ cat Creature.rb
require 'Math'

class Creature

Creature.extend Math
include Math

attr_accessor :life, :strength, :charisma, :weapon


def initialize ()
@life = 10
@strength = 10
@charisma = 10
@weapon = 10
end

def toString ()
print "class\t\t"
print self.class

print "\nlife\t\t"
print @life

print "\nstrength\t"
print @strength

print "\ncharisma\t"
print @charisma

print "\nweapon\t\t"
print @weapon
print "\n"
end


end
thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $




thanks,

Thufir

 

[Thufir]

I want to create one creature and write it to the dwemthys.db, and I'm
close. From the example at <http://www.dzone.com/links/rss/
simple_ruby_activerecord_example.html?> I know that the "create" method
is used for this, but somehow it fails when for creatures when it works
for the example.

Got it with some help!

My code wasn't following what ActiveRecord required, but this works:

thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $ ruby creatures.rb
-- create_tablecreatures)
SQL (0.036018) CREATE TABLE creatures ("id" INTEGER PRIMARY KEY NOT
NULL, "life" integer DEFAULT NULL, "strength" integer DEFAULT NULL,
"charisma" integer DEFAULT NULL, "weapon" integer DEFAULT NULL)
-> 0.1568s
#<Creature:0xb77f9d44 @new_record=true, @attributes={"strength"=>0,
"charisma"=>0, "weapon"=>0, "life"=>0}>
SQL (0.000885) INSERT INTO creatures ("strength", "charisma", "life",
"weapon") VALUES(0, 0, 0, 0)
thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $ sqlite3 dwemthys.db
SQLite version 3.4.1
Enter ".help" for instructions
sqlite> select * from creatures;
1|0|0|0|0
sqlite>
sqlite> .quit
thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $ cat creatures.rb
require 'active_record'
require 'ArrayOfCreatures'
require 'MakeCreature'
require 'Creature'

include MakeCreature


ActiveRecord::Base.logger = Logger.new(STDERR)
ActiveRecord::Base.colorize_logging = true

ActiveRecord::Base.establish_connection(
:adapter => "sqlite3",
:dbfile => "dwemthys.db"
)


ActiveRecord::Schema.define do
create_table :creatures do |table|
table.column :life, :integer
table.column :strength, :integer
table.column :charisma, :integer
table.column :weapon, :integer
end
end


creature = Creature.new
p creature
creature.save
thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $ cat Creature.rb
require 'Math'

class Creature < ActiveRecord::Base

attr_accessor :life, :strength, :charisma, :weapon



def to_s ()
print "class\t\t"
print self.class

print "\nlife\t\t"
print @life

print "\nstrength\t"
print @strength

print "\ncharisma\t"
print @charisma

print "\nweapon\t\t"
print @weapon
print "\n"
end


end
thufir@arrakis ~/Desktop/dwemthys $
thufir@arrakis ~/Desktop/dwemthys $




-Thufir