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Contents
module Partitioned
#
# Partition tables by a time field grouping them by week, with
# a week defined as seven days starting on Monday.
#
class ByWeeklyTimeField < ByTimeField
self.abstract_class = true
#
# Normalize a partition key value by week. We've picked
# the beginning of the week to key on, which is Monday.
#
# @param [Time] time_value the time value to normalize
# @return [Time] the value normalized
def self.partition_normalize_key_value(time_value)
return time_value.at_beginning_of_week
end
#
# The size of the partition table, 7 days (1.week)
#
# @return [Integer] the size of this partition
def self.partition_table_size
return 1.week
end
partitioned do |partition|
partition.base_name lambda { |model, time_field|
return model.partition_normalize_key_value(time_field).strftime('%Y%m%d')
}
end
end
end
Version data entries
21 entries across 21 versions & 1 rubygems