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module RailsAdmin
module Adapters
module ActiveRecord
class Association
attr_reader :association, :model
def initialize(association, model)
@association = association
@model = model
end
def name
association.name.to_sym
end
def pretty_name
name.to_s.tr('_', ' ').capitalize
end
def type
association.macro
end
def klass
if options[:polymorphic]
polymorphic_parents(:active_record, model.name.to_s, name) || []
else
association.klass
end
end
def primary_key
(options[:primary_key] || association.klass.primary_key).try(:to_sym) unless polymorphic?
end
def foreign_key
association.foreign_key.to_sym
end
def foreign_key_nullable?
return true if foreign_key.nil? || type != :has_many
(column = klass.columns_hash[foreign_key.to_s]).nil? || column.null
end
def foreign_type
options[:foreign_type].try(:to_sym) || :"#{name}_type" if options[:polymorphic]
end
def foreign_inverse_of
nil
end
def as
options[:as].try :to_sym
end
def polymorphic?
options[:polymorphic] || false
end
def inverse_of
options[:inverse_of].try :to_sym
end
def read_only?
(klass.all.instance_eval(&scope).readonly_value if scope.is_a? Proc) ||
association.nested? ||
false
end
def nested_options
model.nested_attributes_options.try { |o| o[name.to_sym] }
end
def association?
true
end
delegate :options, :scope, to: :association, prefix: false
delegate :polymorphic_parents, to: RailsAdmin::AbstractModel
end
end
end
end
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