class ActiveScaffold::DataStructures::NestedInfo

Attributes

association[RW]
child_association[RW]
constrained_fields[RW]
parent_id[RW]
parent_model[RW]
parent_scaffold[RW]

Public Class Methods

get(model, params) click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 3
def self.get(model, params)
  nested_info = {}
  begin
    nested_info[:name] = params[:association].to_sym
    nested_info[:parent_scaffold] = "#{params[:parent_scaffold].to_s.camelize}Controller".constantize
    nested_info[:parent_model] = nested_info[:parent_scaffold].active_scaffold_config.model
    nested_info[:parent_id] = params[nested_info[:parent_model].name.foreign_key]
    if nested_info[:parent_id]
      ActiveScaffold::DataStructures::NestedInfo.new(model, nested_info)
    end
  rescue ActiveScaffold::ControllerNotFound
    nil
  end
end
new(model, nested_info) click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 20
def initialize(model, nested_info)
  @parent_model = nested_info[:parent_model]
  @parent_id = nested_info[:parent_id]
  @parent_scaffold = nested_info[:parent_scaffold]
  @association = @parent_model.association_reflection(nested_info[:name])
  iterate_model_associations(model)
end

Public Instance Methods

belongs_to?() click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 44
def belongs_to?
  association[:type] == :many_to_one
end
default_sorting() click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 56
def default_sorting
  association[:order]
end
habtm?() click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 40
def habtm?
  association[:type] == :many_to_many
end
has_one?() click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 48
def has_one?
  association[:type] == :one_to_one
end
name() click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 36
def name
  association[:name]
end
parent_scope() click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 32
def parent_scope
  parent_model[parent_id]
end
sorted?() click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 52
def sorted?
  association.has_key? :order
end
to_params() click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 28
def to_params
  {:parent_scaffold => parent_scaffold.controller_path, :association => association[:name], :assoc_id => parent_id}
end

Protected Instance Methods

iterate_model_associations(model) click to toggle source
# File lib/active_scaffold/data_structures/nested_info.rb, line 62
def iterate_model_associations(model)
  @constrained_fields = []
  @constrained_fields << association[:key] unless belongs_to?
  model.association_reflections.each do |ass_name, ass_properties|
    if !ass_properties[:type] == :many_to_one && association[:key] == ass_properties[:class_name].foreign_key
      constrained_fields << ass_name
      @child_association = ass_properties if ass_properties.associated_class == @parent_model
    end
    if association[:key] == ass_properties[:key]
      # show columns for has_many and has_one child associationes
      constrained_fields << ass_name if ass_properties[:type] == :many_to_one
      @child_association = ass_properties if ass_properties.associated_class == @parent_model
    end
  end
end