Method: Zena::Use::QueryNode::Compiler#parse_custom_query_argument

Defined in:

lib/zena/use/query_node.rb

#parse_custom_query_argument(key, value) ⇒ Object

******** And maybe overwrite these **********

# File 'lib/zena/use/query_node.rb', line 424

def parse_custom_query_argument(key, value)
  return nil unless value
  super.gsub(/(RELATION_ID|KPATH_VALUE|NODE_ATTR|SECURE_TABLE)\(([^)]+)\)|(REF_DATE|NODE_ID|VISITOR_LANG)/) do
    type, value = $1, $2
    type ||= $3
    case type
    when 'RELATION_ID'
      role = value
      if rel = RelationProxy.find_by_role(role.singularize)
        rel[:id]
      else
        raise ::QueryBuilder::Error.new("Custom query: could not find Relation '#{role}'")
      end
    when 'KPATH_VALUE'
      klass_name = value
      if rel = VirtualClass[klass_name]
        rel.kpath
      else
        raise ::QueryBuilder::Error.new("Custom query kpath: could not find VirtualClass '#{role}'")
      end
    when 'SECURE_TABLE'
      table_name = value
      add_filter "\#{secure_scope('#{table_name}')}"
    when 'NODE_ATTR'
      attribute = value
      if Node.safe_method_type([attribute])
        insert_bind("#{node_name}.#{attribute}")
      else
        # not found: consider it's a property
        insert_bind("#{node_name}.prop[#{attribute.inspect}]")
      end
    when 'REF_DATE'
      context[:ref_date] ? insert_bind(context[:ref_date]) : 'now()'
    when 'NODE_ID'
      insert_bind("#{node_name}.id")
    when 'VISITOR_LANG'
      insert_bind("visitor.lang")
    end
  end
end