Module: ActsAsJoinable::Core::ClassMethods
- Defined in:
- lib/acts_as_joinable/core.rb
Instance Method Summary collapse
- #action_from_joined(action, model, conditions) ⇒ Object
- #acts_as_joinable_on(*args) ⇒ Object
- #add_around_filters_for_join(options, attribute, filter, filter_type) ⇒ Object
- #count_from_joined(model, conditions) ⇒ Object
- #find_from_joined(model, conditions = {}) ⇒ Object
- #find_joined(model, conditions = {}) ⇒ Object
- #find_joined_with_join(model, conditions = {}) ⇒ Object
-
#initialize_acts_as_joinable_on_core ⇒ Object
custom parent, self, and child contexts Group…
-
#join_conditions(model, conditions = {}, &block) ⇒ Object
end.
Instance Method Details
#action_from_joined(action, model, conditions) ⇒ Object
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# File 'lib/acts_as_joinable/core.rb', line 247 def action_from_joined(action, model, conditions) join_conditions(model, conditions.delete(:relationship) || {}) do |kind, source_type, relationship_conditions| ids = Relationship.select_attributes("#{kind}_id", relationship_conditions).uniq.compact.map(&:to_i) conditions.reverse_merge!(:id => ids) send(action, :conditions => conditions) end end |
#acts_as_joinable_on(*args) ⇒ Object
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# File 'lib/acts_as_joinable/core.rb', line 221 def acts_as_joinable_on(*args) super(*args) initialize_acts_as_joinable_on_core end |
#add_around_filters_for_join(options, attribute, filter, filter_type) ⇒ Object
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# File 'lib/acts_as_joinable/core.rb', line 14 def add_around_filters_for_join(, attribute, filter, filter_type) [filter_type] = filter if filter =begin if filter options[filter_type] = lambda { |parent, child| parent.write_join_attribute(attribute, child.id) filter.call(self) } else options[filter_type] = lambda { |parent, child| parent.write_join_attribute(attribute, child.id) } end =end end |
#count_from_joined(model, conditions) ⇒ Object
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# File 'lib/acts_as_joinable/core.rb', line 243 def count_from_joined(model, conditions) action_from_joined(:count, model, conditions) end |
#find_from_joined(model, conditions = {}) ⇒ Object
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# File 'lib/acts_as_joinable/core.rb', line 239 def find_from_joined(model, conditions = {}) action_from_joined(:all, model, conditions) end |
#find_joined(model, conditions = {}) ⇒ Object
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# File 'lib/acts_as_joinable/core.rb', line 232 def find_joined(model, conditions = {}) join_conditions(model, conditions.delete(:relationship) || {}) do |kind, source_type, relationship_conditions| ids = Relationship.select_attributes("#{opposite_for(kind)}_id", relationship_conditions).uniq source_type.all(:conditions => {:id => ids}.merge(conditions)) end end |
#find_joined_with_join(model, conditions = {}) ⇒ Object
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# File 'lib/acts_as_joinable/core.rb', line 226 def find_joined_with_join(model, conditions = {}) = join_conditions(model, conditions.delete(:relationship) || {}) .merge!(conditions) source_type.all() end |
#initialize_acts_as_joinable_on_core ⇒ Object
custom parent, self, and child contexts Group…
acts_as_joinable_on :groups,
:as => [:parent, :child],
:context => :nested_groups,
:child_classes => %w(pod store)
acts_as_joinable_on :pods, :as => :parent, :class_name => "Group"
acts_as_joinable_on :users,
:as => :parent,
:context => :membership
:values => %w(owner developer admin consumer)
acts_as_joinable_on class|context|custom_alias, class, role, context, context values
acts_as_joinable_on :members, :class_name => "User", :as => :parent, :context => :memebership
acts_as_joinable_on :owner, :class_name => "User", :context => :memebership, :value => :owner
joins_one :owner, :class_name => "User", :context => :memebership, :value => :owner
joins_many :members, :class_name => "User", :context => :memebership
joins :user, :with => :role do
has_many :board_of_directors
has_one :owner
end
has_many_parent :posts
has_many_child :assets
has_many_relationships :users, :through => :memberships
joins :user, :with => :membership do
has_many :members
end
Office
acts_as_joinable_on :pods, :as => :child
acts_as_joinable_on :tenants, :as => :parent
User
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# File 'lib/acts_as_joinable/core.rb', line 59 def initialize_acts_as_joinable_on_core joins = acts_as_joinable_config.dup block = joins.pop opts = joins. if joins.empty? joins = ActsAsJoinable.models relationships = [:child] else relationships = [opts[:as] || :parent].flatten.map(&:to_sym) end before_add = opts[:before_add] after_add = opts[:after_add] extension = opts[:extend] opts[:class_name] ||= opts[:source].to_s.camelize if opts[:source] association_type = opts[:limit] == 1 ? :has_one : :has_many scope_name = opts[:named_scope] autosave = opts[:autosave] != false joins.map!(&:to_sym) # class name of the model we're joining to self # otherwise it's retrieved from joins.each... class_name = opts[:class_name] || nil sti = (opts[:subclasses] || []).map { |i| i.to_s.camelize.constantize } # contexts defining the relationship between self and target contexts = [opts[:context] || []].flatten.map(&:to_s) context = contexts#.first # possible values of the context values = [opts[:values] || opts[:value] || []].flatten.compact value = values.first sql = opts[:conditions] nestable = opts[:nestable] || false # parent, child, or contexts (both) for custom helper getters/setters has_many :parent_relationships, :class_name => 'Relationship', :as => :child, :foreign_key => "child_id", :uniq => true has_many :child_relationships, :class_name => 'Relationship', :as => :parent, :foreign_key => "parent_id", :uniq => true after_destroy :destroy_relationships unless after_destroy.map(&:method).include?(:destroy_relationships) = (ancestors.reverse - included_modules + send(:subclasses) + sti).uniq wanted_classes = [] while wanted_classes.push(.pop) break if wanted_classes.last == base_class.superclass end wanted_classes.pop joins.each do |type| if association_type == :has_one singular_type = type.to_s.to_sym plural_type = type.to_s.pluralize.to_sym else singular_type = type.to_s.singularize.to_sym plural_type = type.to_s.to_sym end class_name = opts[:class_name] || type.to_s.classify join_context = (context.blank? ? [singular_type] : Array(context)).map(&:to_s) = { :through => :relationships, :class_name => class_name, :source => :child, :source_type => class_name, :conditions => sql } [:extend] = extension if extension add_around_filters_for_join(, "#{singular_type.to_s}_id".to_sym, before_add, :before_add) add_around_filters_for_join(, "#{singular_type.to_s}_id".to_sym, after_add, :after_add) # relationships == [:parent, :child] relationships.each do |relationship| # Post.joins :tags, :as => :parent # through_relationship = child_tag_relationships # relationship_table = `relationships` relationship = opposite_for(relationship) through_relationship = "#{relationship.to_s}_#{singular_type}_relationships".to_sym relationship_table = Relationship.quoted_table_name rescue nil .merge!(:through => through_relationship, :source => relationship, :uniq => true) join_value = value # conditions for the join model condition_string = "" #if join_context == class_name.underscore # condition_string << "(#{relationship_table}.#{relationship}_type IN (?))" if join_context.include?(class_name.underscore)# && opposite_for(relationship).to_sym != :child #conditions = [condition_string, [class_name]] # if join_value # condition_string << "(#{relationship_table}.value = ?)" # conditions = [condition_string, join_value.to_s] # end else conditions = {:context => join_context.dup} conditions[:value] = join_value unless join_value.blank? # condition_string << "(#{relationship_table}.context IN (?))" # condition_string << " AND (#{relationship_table}.value = ?)" if join_value # join_contexts = join_context.dup#[join_context, class_name.underscore].uniq # conditions = [condition_string, join_contexts] # conditions << join_value.to_s if join_value end = { :class_name => "Relationship", :conditions => conditions, :as => opposite_for(relationship).to_sym # :select => "#{relationship}_id, #{relationship}_type, id, #{opposite_for(relationship)}_id" } if association_type == :has_one #options.delete(:after_add) .delete(:uniq) else [:uniq] = true end if join_context.length > 1 [:readonly] = true [:readonly] = true else .delete(:readonly) .delete(:readonly) end unless has_association?(through_relationship) has_many through_relationship, end add_association(relationship.to_s, plural_type, , join_context, join_value, &block) if association_type == :has_one add_has_one(singular_type, plural_type, through_relationship, class_name, join_context, join_value, ) add_class_relationship_method(singular_type) else add_class_relationship_method(plural_type) end if nestable accepts_nested_attributes_for plural_type.to_sym if association_type == :has_one define_method "#{singular_type}_attributes=" do |params| params = params.first if params.is_a?(Array) self.send("#{plural_type}_attributes=", [params]) end end end end end end |
#join_conditions(model, conditions = {}, &block) ⇒ Object
end
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# File 'lib/acts_as_joinable/core.rb', line 259 def join_conditions(model, conditions = {}, &block) relationship = self.reflect_on_all_associations.detect {|a| a.name == model.to_sym} if relationship = relationship. else = {:source => "parent", :source_type => model.to_s.camelize} end kind = conditions.delete(:as) || [:source].to_s source_type = [:source_type].constantize result = conditions.reverse_merge( "#{opposite_for(kind)}_type" => .map(&:name), "#{kind}_type" => source_type..map(&:name) ).stringify_keys if block_given? yield(opposite_for(kind), source_type, result) else result end end |