Module: Slugable::HasSlug
- Defined in:
- lib/slugable/has_slug.rb
Instance Method Summary collapse
-
#has_slug(options = {}) ⇒ Object
USAGE generate before save filter for filling slug from name attribute, and parameterize slug attribute you can change default columns by passing :from and :to attributes.
Instance Method Details
#has_slug(options = {}) ⇒ Object
USAGE generate before save filter for filling slug from name attribute, and parameterize slug attribute you can change default columns by passing :from and :to attributes
it also generate method to_slug (depanding od :to param), which generate slug url for link_path
has_slug # generate to_slug has_slug :from => :title # generate to_slug has_slug :to => :seo_url # generate to_url has_slug :from => :name, :to => :slug # generate to_slug
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# File 'lib/slugable/has_slug.rb', line 15 def has_slug(={}) defaults = {:from => :name, :to => :slug} .reverse_merge!(defaults) from = .delete(:from) to = .delete(:to) before_save :"fill_slug_from_#{from}_to_#{to}", :"format_slug_from_#{from}_to_#{to}" after_save :"update_my_#{to}_cache" # generate this # # def fill_slug # self.slug = name if slug.blank? || slug.parameterize.blank? # end code =<<-method def fill_slug_from_#{from}_to_#{to} self.#{to} = #{from} if #{to}.blank? || #{to}.parameterize.blank? end method class_eval(code) # generate this # # def format_slug # self.slug = slug.parameterize # end code =<<-method def format_slug_from_#{from}_to_#{to} self.#{to} = #{to}.parameterize end method class_eval(code) # generate this # def update_my_slug_cache # @@all ||= {} # @@all[id] = send(:slug) # end code =<<-method def update_my_#{to}_cache @@all ||= {} @@all[id] = send(:#{to}) end method class_eval(code) # generate this # # def self.all_slugs # slug_column = :slug # @@all ||= self.all.map_to_hash{|slug_element| {slug_element.id => slug_element.send(slug_column)}} # end code =<<-method def self.all_#{to}s @@all ||= self.all.map_to_hash{|slug_element| {slug_element.id => slug_element.send(:#{to})}} end method class_eval(code) # generate this # # def self.clear_cached_slugs # @@all = nil # end code =<<-method def self.clear_cached_#{to}s @@all = nil end method class_eval(code) # generate this # # def self.cached_slug(id) # all_slugs[id] # end code =<<-method def self.cached_#{to}(id) all_#{to}s[id].to_s end method class_eval(code) # generate this # # def to_slug # if respond_to?(:path_ids) # slugs = path_ids.map{|id| self.class.cached_slug(id)}.select{|i| i.size > 0 } # if slugs.empty? # "" # else # slug # end # else # send(:slug) # end # end code =<<-method def to_#{to} if respond_to?(:path_ids) slugs = path_ids.map{|id| self.class.cached_#{to}(id)}.select{|i| i.size > 0 } if slugs.empty? "" else slugs end else send(:#{to}) end end method class_eval(code) end |