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July 20, 2016 14:47
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A intenção era só simplificar e ganhar todos os métodos sem precisar fazer muito, é muito simples fazer em uma classe desprendida do ActiveRecord
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module Searchable | |
included do | |
scope :gender, ->(gender) { where(:gender => gender) } | |
scope :birth_on, ->(date) { where(:birthdate =>date) } | |
scope :birth_before_than, ->(date) { where("#{quoted_table_name}.birthdate < ?", date) } | |
scope :birth_after_than, ->(date) { where("#{quoted_table_name}.birthdate > ?", date) } | |
scope :profile, ->(profile){ where(:profile => profile) } | |
end | |
module ClassMethods | |
def fiter_with(options = {}) | |
relation = all | |
options.each do |key, value| | |
relation = relation.send(key, value) if available_scope?(key) | |
end | |
relation | |
end | |
def available_scope?(scope) | |
%w(gender birth_on birth_before_than birth_after_than profile).include?(scope) | |
end | |
end | |
end | |
# Exemplo: | |
# search = MySearch.new(User) | |
# search.filter_with(options) | |
class MySearch | |
attr_accessor :klass | |
def initialize klass | |
@klass = klass | |
add_scopes(@klass) | |
end | |
def add_scopes(klass) | |
@klass.class_eval do | |
scope :gender, ->(gender) { where(:gender => gender) } | |
scope :birth_on, ->(date) { where(:birthdate =>date) } | |
scope :birth_before_than, ->(date) { where("#{quoted_table_name}.birthdate < ?", date) } | |
scope :birth_after_than, ->(date) { where("#{quoted_table_name}.birthdate > ?", date) } | |
scope :profile, ->(profile){ where(:profile => profile) } | |
end | |
end | |
def fiter_with(options = {}) | |
relation = @klass.all | |
options.each do |key, value| | |
relation = relation.send(key, value) if available_scope?(key) | |
end | |
relation | |
end | |
private | |
def available_scope?(scope) | |
%w(gender birth_on birth_before_than birth_after_than profile).include?(scope) | |
end | |
end |
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