Method: SimpleRecord::Attributes#get_attribute

Defined in:
lib/simple_record/attributes.rb

#get_attribute(name) ⇒ Object

Since SimpleDB supports multiple attributes per value, the values are an array. This method will return the value unwrapped if it’s the only, otherwise it will return the array.



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# File 'lib/simple_record/attributes.rb', line 326

def get_attribute(name)
#            puts "get_attribute #{name}"
    # Check if this arg is already converted
    name_s   = name.to_s
    name     = name.to_sym
    att_meta = get_att_meta(name)
#            puts "att_meta for #{name}: " + att_meta.inspect
    if att_meta && att_meta.type == :clob
        ret = @lobs[name]
#                puts 'get_attribute clob ' + ret.inspect
        if ret
            if ret.is_a? RemoteNil
                return nil
            else
                return ret
            end
        end
        # get it from s3
        unless new_record?
            if self.class.get_sr_config[:single_clob]
                begin
                    single_clob = s3_bucket(false, :s3_bucket=>:new).get(single_clob_id)
                    single_clob = JSON.parse(single_clob)
#                            puts "single_clob=" + single_clob.inspect
                    single_clob.each_pair do |name2,val|
                        @lobs[name2.to_sym] = val
                    end
                    ret = @lobs[name]
                    SimpleRecord.stats.s3_gets += 1
                rescue Aws::AwsError => ex
                    if ex.include?(/NoSuchKey/) || ex.include?(/NoSuchBucket/)
                        ret = nil
                    else
                        raise ex
                    end
                end
            else
                begin
                    ret = s3_bucket.get(s3_lob_id(name))
                    # puts 'got from s3 ' + ret.inspect
                    SimpleRecord.stats.s3_gets += 1
                rescue Aws::AwsError => ex
                    if ex.include?(/NoSuchKey/) || ex.include?(/NoSuchBucket/)
                        ret = nil
                    else
                        raise ex
                    end
                end
            end

            if ret.nil?
                ret = RemoteNil.new
            end
        end
        @lobs[name] = ret
        return nil if ret.is_a? RemoteNil
        return ret
    else
        @attributes_rb = {} unless @attributes_rb # was getting errors after upgrade.
        ret = @attributes_rb[name_s] # instance_variable_get(instance_var)
        return ret unless ret.nil?
        return nil if ret.is_a? RemoteNil
        ret                    = get_attribute_sdb(name)
#                p ret
        ret                    = sdb_to_ruby(name, ret)
#                p ret
        @attributes_rb[name_s] = ret
        return ret
    end

end