Below extensions to active record base simplifies its usage while coding.
# config/initializers/core_extensions.rb
class ActiveRecord::Base
def self.pagination(options)
paginate :per_page => options[:per_page] || per_page, :page => options[:page]
end
def self.options_for_select(opts={})
opts[:name] ||= :name
opts[:attr] ||= :id
opts[:prompt] ||= 'Please Select'
all.collect{|c| [c.send(opts[:name].to_sym), c.send(opts[:attr].to_sym)]}.insert(0, [opts[:prompt], nil])
end
end
Usage
class Student< ActiveRecord::Base
#attributes #=> name, age
end
##
Student.pagination({:page => 10})
Student.pagination({:per_page => 2, :page => 2})
Student.options_for_select
Student.options_for_select({:prompt => 'Please select'})
Student.options_for_select({:name => :age})
