class ActiveRecord::HierarchicalQuery::CTE::Columns
Public Class Methods
new(query)
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@param [ActiveRecord::HierarchicalQuery::Query] query
# File lib/active_record/hierarchical_query/cte/columns.rb, line 8 def initialize(query) @query = query end
Public Instance Methods
to_a()
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returns columns to be selected from both recursive and non-recursive terms
# File lib/active_record/hierarchical_query/cte/columns.rb, line 13 def to_a column_names = [@query.klass.primary_key] | connect_by_columns column_names.map { |name| @query.table[name] } end
Also aliased as: to_ary
Private Instance Methods
connect_by_columns()
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# File lib/active_record/hierarchical_query/cte/columns.rb, line 20 def connect_by_columns @query.join_conditions.grep(Arel::Attributes::Attribute) { |column| column.name.to_s } end