foodsoft/app/models/user.rb

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# == Schema Information
#
# Table name: users
#
# id :integer not null, primary key
# nick :string(255) default(""), not null
# password_hash :string(255) default(""), not null
# password_salt :string(255) default(""), not null
# first_name :string(255) default(""), not null
# last_name :string(255) default(""), not null
# email :string(255) default(""), not null
# phone :string(255)
# created_on :datetime not null
# reset_password_token :string(255)
# reset_password_expires :datetime
# last_login :datetime
#
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require 'digest/sha1'
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# specific user rights through memberships (see Group)
class User < ActiveRecord::Base
#TODO: acts_as_paraniod ??
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has_many :memberships, :dependent => :destroy
has_many :groups, :through => :memberships
has_one :ordergroup, :through => :memberships, :source => :group, :class_name => "Ordergroup"
has_many :workgroups, :through => :memberships, :source => :group, :class_name => "Workgroup"
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has_many :assignments, :dependent => :destroy
has_many :tasks, :through => :assignments
has_many :send_messages, :class_name => "Message", :foreign_key => "sender_id"
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has_many :pages, :foreign_key => 'updated_by'
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attr_accessor :password, :setting_attributes
validates_presence_of :nick, :email
validates_presence_of :password_hash, :message => "Password is required."
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validates_length_of :nick, :in => 2..25
validates_uniqueness_of :nick
validates_format_of :email, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i
validates_uniqueness_of :email
validates_length_of :first_name, :in => 2..50
validates_confirmation_of :password
validates_length_of :password, :in => 5..25, :allow_blank => true
before_validation :set_password
after_save :update_settings
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# Adds support for configuration settings (through "settings" attribute).
acts_as_configurable
# makes the current_user (logged-in-user) available in models
cattr_accessor :current_user
# User settings keys
# returns the User-settings and the translated description
def self.setting_keys
{
"notify.orderFinished" => 'Informier mich über meine Bestellergebnisse (nach Ende der Bestellung).',
"notify.negativeBalance" => 'Informiere mich, falls meine Bestellgruppe ins Minus rutscht.',
"notify.upcoming_tasks" => 'Erinnere mich an anstehende Aufgaben.',
"messages.sendAsEmail" => 'Bekomme Nachrichten als Emails.',
"profile.phoneIsPublic" => 'Telefon ist für Mitglieder sichtbar',
"profile.emailIsPublic" => 'E-Mail ist für Mitglieder sichtbar',
"profile.nameIsPublic" => 'Name ist für Mitglieder sichtbar'
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}
end
# retuns the default setting for a NEW user
# for old records nil will returned
# TODO: integrate default behaviour in acts_as_configurable plugin
def settings_default(setting)
# define a default for the settings
defaults = {
"messages.sendAsEmail" => true,
"notify.upcoming_tasks" => true
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}
return true if self.new_record? && defaults[setting]
end
def update_settings
unless setting_attributes.nil?
for setting in User::setting_keys.keys
self.settings[setting] = setting_attributes[setting] && setting_attributes[setting] == '1' ? '1' : nil
end
end
end
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def name
[first_name, last_name].join(" ")
end
def ordergroup_name
ordergroup.name if ordergroup
end
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# Sets the user's password. It will be stored encrypted along with a random salt.
def set_password
unless password.blank?
salt = [Array.new(6){rand(256).chr}.join].pack("m").chomp
self.password_hash, self.password_salt = Digest::SHA1.hexdigest(password + salt), salt
end
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end
# Returns true if the password argument matches the user's password.
def has_password(password)
Digest::SHA1.hexdigest(password + self.password_salt) == self.password_hash
end
# Returns a random password.
def new_random_password(size = 3)
c = %w(b c d f g h j k l m n p qu r s t v w x z ch cr fr nd ng nk nt ph pr rd sh sl sp st th tr)
v = %w(a e i o u y)
f, r = true, ''
(size * 2).times do
r << (f ? c[rand * c.size] : v[rand * v.size])
f = !f
end
r
end
# Checks the admin role
def role_admin?
groups.detect {|group| group.role_admin?}
end
# Checks the finance role
def role_finance?
groups.detect {|group| group.role_finance?}
end
# Checks the article_meta role
def role_article_meta?
groups.detect {|group| group.role_article_meta?}
end
# Checks the suppliers role
def role_suppliers?
groups.detect {|group| group.role_suppliers?}
end
# Checks the orders role
def role_orders?
groups.detect {|group| group.role_orders?}
end
def ordergroup_name
ordergroup ? ordergroup.name : "keine Bestellgruppe"
end
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# Find all tasks, for which the current user should be responsible
# but which aren't accepted yet
def unaccepted_tasks
# this doesn't work. Produces "undefined method", when later use task.users... Rails Bug?
# self.tasks.find :all, :conditions => ["accepted = ?", false], :order => "due_date DESC"
Task.find_by_sql ["SELECT t.* FROM tasks t, assignments a, users u
WHERE u.id = a.user_id
AND t.id = a.task_id
AND u.id = ?
AND a.accepted = ?
AND t.done = ?
ORDER BY t.due_date ASC", self.id, false, false]
end
# Find all accepted tasks, which aren't done
def accepted_tasks
Task.find_by_sql ["SELECT t.* FROM tasks t, assignments a, users u
WHERE u.id = a.user_id
AND t.id = a.task_id
AND u.id = ?
AND a.accepted = ?
AND t.done = ?
ORDER BY t.due_date ASC", self.id, true, false]
end
# find all tasks in the next week (or another number of days)
def next_tasks(number = 7)
Task.find_by_sql ["SELECT t.* FROM tasks t, assignments a, users u
WHERE u.id = a.user_id
AND t.id = a.task_id
AND u.id = ?
AND t.due_date >= ?
AND t.due_date <= ?
AND t.done = ?
AND a.accepted = ?
ORDER BY t.due_date ASC", self.id, Time.now, number.days.from_now, false, true]
end
# returns true if user is a member of a given group
def member_of?(group)
group.users.exists?(self.id)
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end
#Returns an array with the users groups (but without the Ordergroups -> because tpye=>"")
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def member_of_groups()
self.groups.find(:all, :conditions => {:type => ""})
end
end